* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-height: 100%; background: var(--paper); }
body { min-height: 100vh; min-height: 100svh; margin: 0; display: flex; flex-direction: column; color: var(--ink); font-family: var(--font-sans); font-size: var(--text-md); line-height: var(--leading-body); background: var(--paper); }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, summary { cursor: pointer; }
.icon { width: 1em; height: 1em; flex: 0 0 auto; stroke-width: 1.8; }
.icon-link, .icon-value { display: inline-flex; align-items: center; gap: var(--space-2); }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: var(--leading-heading); }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
.muted { color: var(--muted); }
.positive { color: var(--green) !important; }
.negative { color: var(--danger) !important; }

.site-header { position: sticky; top: 0; z-index: 50; min-height: 72px; padding: var(--space-2) 0; border: 0 none transparent !important; background: transparent !important; box-shadow: none !important; backdrop-filter: none !important; -webkit-backdrop-filter: none !important; transition: background-color .2s ease, border-color .2s ease; }
.home-page .site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 50; background: transparent !important; border: 0 none transparent !important; box-shadow: none !important; backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
.nav-shell { position: relative; width: min(1280px, calc(100% - (2 * var(--space-6)))); min-height: 56px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.nav-left, .site-nav { display: flex; align-items: center; gap: var(--space-4); }
.nav-left { flex: 1 1 auto; }
.site-nav { flex: 0 0 auto; justify-content: flex-end; }
.brand-title { display: inline-flex; align-items: center; gap: 3px; height: 32px; font-family: 'Outfit', 'Space Grotesk', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif; font-weight: 900; font-size: 18px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gray-12) !important; text-decoration: none; margin-right: auto; transition: opacity .15s ease, transform .15s ease; white-space: nowrap; }
.brand-title:hover { opacity: .85; color: var(--gray-12) !important; }
.brand-title .brand-accent { color: var(--accent-9); font-weight: 900; }
.nav-items-group { display: flex; align-items: center; gap: var(--space-3); margin-left: auto; }
.language-menu-trigger { flex: 0 0 auto; gap: var(--space-2); }
.language-menu-trigger.labelled { width: 100%; justify-content: flex-start; }
.language-menu-trigger.labelled .language-code { margin-left: auto; }
.dropdown-language { min-width: 184px; }
.home-mark { flex: 0 0 auto; margin-right: auto; }
.nav-link, .nav-dropdown-control, .nav-icon { display: inline-flex; align-items: center; height: 32px; }
.nav-link { gap: var(--space-2); }
.nav-icon, .site-header .rt-IconButton {
  width: 32px;
  height: 32px;
  justify-content: center;
  color: var(--gray-9) !important;
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
  border-radius: var(--radius-full);
  transition: color .15s ease;
}
.nav-icon:hover, .nav-icon:active, .nav-icon.active, .nav-icon[data-state="open"],
.site-header .rt-IconButton:hover, .site-header .rt-IconButton:active, .site-header .rt-IconButton[data-state="open"] {
  color: var(--gray-12) !important;
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
}
.nav-icon svg, .site-header .rt-IconButton svg {
  transition: color .15s ease, transform .15s ease;
  color: inherit;
}
.nav-link, .nav-dropdown-primary, .auth-nav-link {
  width: auto !important;
  min-width: max-content;
  white-space: nowrap !important;
  height: 32px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1;
  text-transform: uppercase;
  color: var(--gray-9) !important;
  text-shadow: none !important;
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
  transition: color .15s ease;
  box-sizing: border-box;
}
.nav-link:hover, .nav-dropdown:hover .nav-dropdown-primary, .auth-nav-link:hover,
.nav-link.active, .nav-dropdown.active .nav-dropdown-primary, .auth-nav-link.active {
  color: var(--gray-12) !important;
  text-shadow: none !important;
  background: transparent !important;
  background-color: transparent !important;
  box-shadow: none !important;
}
.nav-dropdown-control { display: inline-flex; align-items: center; gap: 0; width: auto; height: 32px; padding: 0; margin: 0; border-radius: var(--radius-3); background: transparent !important; transition: color .16s ease; box-sizing: border-box; white-space: nowrap; }
.nav-dropdown-primary { display: inline-flex; align-items: center; gap: var(--space-2); width: auto !important; height: 32px; padding: 0 var(--space-1) 0 var(--space-2) !important; border-radius: var(--radius-3) !important; white-space: nowrap !important; }
.user-profile-link { gap: var(--space-2); padding-left: var(--space-2) !important; }
.nav-dropdown-toggle { flex: 0 0 auto; width: var(--space-5) !important; height: 32px; margin: 0 !important; padding: 0 !important; margin-left: calc(-1 * var(--space-1)); margin-right: var(--space-1); border: 0; border-radius: var(--radius-2) !important; display: inline-flex; align-items: center; justify-content: center; }
.nav-dropdown-control > .rt-BaseButton, .nav-dropdown-control > .rt-BaseButton:hover, .nav-dropdown-control > .rt-BaseButton[data-state="open"] { margin: 0 !important; background-color: transparent !important; box-shadow: none !important; color: inherit; }
.nav-dropdown-control > .rt-BaseButton:focus-visible { outline: 0; }
.nav-dropdown:has(.nav-dropdown-control > .rt-BaseButton:focus-visible) > .nav-dropdown-control { outline: 2px solid var(--focus-8); outline-offset: 2px; }
.nav-dropdown:hover > .nav-dropdown-control { background: transparent !important; color: var(--gray-12) !important; }
.nav-dropdown.active > .nav-dropdown-control, .nav-dropdown:has(.nav-dropdown-toggle[data-state="open"]) > .nav-dropdown-control { background: transparent !important; color: var(--gray-12) !important; }
.nav-dropdown-toggle .chevron { width: 14px; height: 14px; transition: transform .18s ease, color .15s ease; color: var(--gray-9); }
.nav-dropdown.active .chevron, .nav-dropdown:hover .chevron { color: var(--gray-12); }
.nav-dropdown:has(.nav-dropdown-toggle[data-state="open"]) .chevron, .nav-dropdown.open .chevron { transform: rotate(180deg); color: var(--gray-12); }
.nav-dropdown { position: relative; display: inline-flex; align-items: center; height: 32px; }
.dropdown-menu { z-index: 80; min-width: 184px; }
.dropdown-menu:not(.rt-BaseMenuContent) { padding: 6px; border: var(--border-width) solid var(--gray-a6); border-radius: var(--radius-3); background: var(--color-panel-solid); box-shadow: var(--shadow-4); }
.nav-dropdown > .dropdown-menu { display: none; position: absolute; left: 0; top: calc(100% + var(--space-2)); }
.nav-dropdown.open > .dropdown-menu { display: block; }
.nav-dropdown > .dropdown-menu.right-align { right: 0; left: auto; }
.dropdown-menu.wide { min-width: 208px; }
.radix-dropdown-content { max-height: min(420px, var(--radix-dropdown-menu-content-available-height)); transform-origin: var(--radix-dropdown-menu-content-transform-origin); }
.dropdown-separator { height: var(--border-width); margin: var(--space-1) var(--space-2); background: var(--line); }
.dropdown-form { width: 100%; }
.dropdown-menu:not(.rt-BaseMenuContent) a, .dropdown-menu:not(.rt-BaseMenuContent) .dropdown-button { width: 100%; min-height: var(--space-9); display: flex; align-items: center; gap: var(--space-2); padding: 6px var(--space-2); border: 0; border-radius: var(--radius-2); background: transparent; color: var(--gray-12); text-align: left; font-size: var(--text-sm); }
.dropdown-menu.rt-BaseMenuContent .rt-ScrollAreaViewport { overflow-x: hidden !important; -ms-overflow-style: none; scrollbar-width: none; }
.dropdown-menu.rt-BaseMenuContent .rt-ScrollAreaViewport::-webkit-scrollbar { width: 0; height: 0; display: none; }
.dropdown-menu.rt-BaseMenuContent .rt-ScrollAreaViewport > .rt-BaseMenuViewport { width: 100%; min-width: 0; overflow: visible; }
.dropdown-menu.rt-BaseMenuContent .rt-ScrollAreaScrollbar[data-orientation="horizontal"] { display: none; }
.dropdown-menu.rt-BaseMenuContent .rt-BaseMenuGroup { min-width: 0; display: flex; flex-direction: column; }
.dropdown-menu.rt-BaseMenuContent .icon-link, .dropdown-menu.rt-BaseMenuContent .dropdown-button { min-width: 0; max-width: 100%; flex: 0 0 auto; gap: var(--space-2); }
.dropdown-menu.rt-BaseMenuContent .icon-link.active { color: var(--accent-11); background: var(--accent-a3); }
.dropdown-menu .icon { width: var(--space-4); height: var(--space-4); }
.dropdown-menu:not(.rt-BaseMenuContent) a:hover, .dropdown-menu:not(.rt-BaseMenuContent) a.active, .dropdown-menu:not(.rt-BaseMenuContent) .dropdown-button:hover { color: var(--accent-11); background: var(--accent-a3); }
.menu-label { display: block; margin: var(--space-1) var(--space-2); padding: var(--space-1) 0; color: var(--gray-10); font-size: var(--text-2xs); letter-spacing: .08em; text-transform: uppercase; }
.avatar-small, .avatar-tiny { display: grid; place-items: center; border-radius: var(--radius-2); background: var(--accent-a3); color: var(--accent-11); font-weight: var(--font-weight-bold); }
.avatar-small { width: 25px; height: 25px; font-size: .72rem; }
.avatar-tiny { flex: 0 0 auto; width: 30px; height: 30px; font-size: var(--text-xs); }
.nav-search-wrap { position: relative; display: inline-flex; align-items: center; height: 32px; flex: 0 0 auto; z-index: 20; }
.nav-search { position: relative; display: inline-flex; align-items: center; height: 32px; border: 0 !important; background: transparent !important; }
.nav-search-field.rt-TextFieldRoot { width: 170px; height: 32px; border-radius: var(--radius-full) !important; background: var(--gray-a3) !important; border: 1px solid var(--gray-a5) !important; box-shadow: none !important; color: var(--gray-12) !important; transition: width .22s cubic-bezier(0.16, 1, 0.3, 1), background-color .15s ease, border-color .15s ease; }
.nav-search-field.rt-TextFieldRoot:hover { background: var(--gray-a4) !important; border-color: var(--gray-a7) !important; }
.nav-search-field.rt-TextFieldRoot:focus-within { width: 220px; background: var(--color-panel-solid) !important; border-color: var(--accent-8) !important; }
.nav-search-field .rt-TextFieldSlot { color: var(--gray-9); }
.nav-search-field.rt-TextFieldRoot:focus-within .rt-TextFieldSlot { color: var(--gray-11); }
.nav-search-field .rt-TextFieldInput { background: transparent !important; border: 0 !important; box-shadow: none !important; outline: none !important; color: var(--gray-12) !important; font-size: var(--text-xs); }
.nav-search-field .rt-TextFieldInput::placeholder { color: var(--gray-9) !important; }
.nav-search-submit { display: none !important; }
.nav-search:not(:has(.rt-TextFieldRoot)) input[type="search"] { width: 100%; height: 32px; border-radius: var(--radius-full) !important; background: var(--gray-a3) !important; border: 1px solid var(--gray-a5) !important; color: var(--gray-12) !important; padding: 0 12px 0 32px; font-size: var(--text-xs); outline: none; transition: background-color .18s ease, color .18s ease; }
.nav-search:not(:has(.rt-TextFieldRoot)) input[type="search"]:focus { background: var(--color-panel-solid) !important; color: var(--gray-12) !important; }
.nav-search:not(:has(.rt-TextFieldRoot)) input[type="search"]::placeholder { color: var(--gray-9) !important; }
.nav-search:not(:has(.rt-TextFieldRoot)) .icon[data-lucide="search"] { position: absolute; left: 10px; width: 14px; height: 14px; color: var(--gray-9); pointer-events: none; }
.nav-search button[type="submit"] { display: none !important; }
.nav-search-suggestions { z-index: 90; max-height: 320px; overflow-y: auto; border: var(--border-width) solid var(--gray-a6); border-radius: var(--radius-3); background: var(--color-panel-solid); box-shadow: var(--shadow-4); }
.radix-search-popover { width: var(--radix-popover-trigger-width); transform-origin: var(--radix-popover-content-transform-origin); }
.nav-search-suggestions a { display: grid; gap: var(--space-1); padding: var(--space-3); border-bottom: var(--border-width) solid var(--line); color: var(--gray-11); }
.nav-search-suggestions a:last-child { border-bottom: 0; }
.nav-search-suggestions a:hover { background: var(--gray-a3); }
.nav-search-suggestions a > span { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.nav-search-suggestions strong { color: var(--ink); font-size: var(--text-sm); }
.nav-search-suggestions small { color: var(--accent-strong); font-size: var(--text-2xs); text-transform: uppercase; }
.nav-search-suggestions p { margin: 0; overflow: hidden; color: var(--muted); font-size: var(--text-xs); text-overflow: ellipsis; white-space: nowrap; }
.nav-search-suggestions .search-all { grid-template-columns: auto 1fr; align-items: center; }
.nav-search-suggestions .search-all span { display: grid; justify-content: stretch; }
.nav-toggle { display: none; }
.mobile-nav-links { display: none; }
.nav-drawer-overlay, .nav-drawer-content { display: none; }
.auth-nav-group { display: flex; align-items: center; gap: var(--space-1); }
.auth-nav-link { display: flex; align-items: center; gap: var(--space-2); }
.theme-toggle { flex: 0 0 auto; }
.language-menu-trigger[data-state="open"] { color: var(--accent-11); background: var(--accent-a3); }

@keyframes nav-menu-in {
  from { opacity: 0; transform: translateY(-4px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes nav-menu-out {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(-3px) scale(.99); }
}

.radix-dropdown-content[data-state="open"], .radix-search-popover[data-state="open"] { animation: nav-menu-in .16s ease-out; }
.radix-dropdown-content[data-state="closed"], .radix-search-popover[data-state="closed"] { animation: nav-menu-out .12s ease-in; }

.page-shell { width: min(1180px, calc(100% - (2 * var(--page-gutter)))); flex: 1 0 auto; margin: 0 auto; padding: var(--page-padding-block); }
#shell-footer-root { margin-top: auto; width: 100%; }
.site-footer { margin-top: auto; border-top: var(--border-width) solid var(--line-strong); background: var(--surface-chrome-subtle); box-shadow: var(--shadow-1); -webkit-backdrop-filter: blur(var(--chrome-blur)) saturate(var(--chrome-saturation)); backdrop-filter: blur(var(--chrome-blur)) saturate(var(--chrome-saturation)); color: var(--gray-11); font-size: var(--text-sm); }
.footer-shell { width: min(1280px, calc(100% - (2 * var(--page-gutter)))); margin: auto; padding: var(--space-6) 0; }
.footer-main { display: grid; gap: var(--space-4); }
.member-footer-grid { grid-template-columns: repeat(3, 1fr); }
.guest-footer-grid { grid-template-columns: repeat(2, 1fr); }
.footer-about > div { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-3); }
.footer-about p { margin: 0; color: var(--muted); }
.footer-mark { width: 32px; height: 32px; display: grid; place-items: center; border-radius: var(--radius-2); background: var(--gray-a3); color: var(--ink); font-size: var(--text-lg); }
.footer-navigation h3, .footer-statistics h3 { margin-bottom: var(--space-3); font-size: var(--text-sm); }
.footer-navigation > div { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
.footer-navigation a { padding: var(--space-1) var(--space-2); border-radius: var(--radius-2); color: var(--gray-11); }
.footer-navigation a:hover { color: var(--ink); background: var(--gray-a3); }
.footer-statistics { display: grid; gap: var(--space-2); }
.footer-statistics h3 { margin-bottom: var(--space-1); }
.footer-statistics > div { display: flex; align-items: center; justify-content: space-between; padding: var(--space-2) var(--space-3); border-bottom: var(--border-width) solid var(--line); background: var(--surface-structural); }
.footer-statistics span { color: var(--gray-11); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-6); padding-top: var(--space-4); border-top: var(--border-width) solid var(--line-strong); }
.footer-bottom > span { color: var(--gray-11); }
.footer-cta, .footer-cta a { display: inline-flex; align-items: center; gap: var(--space-2); }
.footer-cta a { padding: var(--space-2) var(--space-3); font-weight: var(--font-weight-medium); }
.footer-cta a:hover { color: var(--ink); background: var(--accent-soft); }
.glass-panel, .panel, .word-card, .list-card, .metric, .timeline-item, .table-wrap, .quiz-card { border: var(--border-width) solid var(--line); background: var(--surface-structural); box-shadow: none; backdrop-filter: none; }
.button { display: inline-flex; min-height: var(--control-height-large); align-items: center; justify-content: center; padding: var(--button-padding); border: var(--border-width) solid var(--accent-a7); background: var(--accent-soft); color: var(--accent-strong); font-weight: var(--font-weight-bold); transition: .18s ease; }
.button:hover { transform: translateY(-1px); border-color: var(--accent); background: var(--accent-a4); }
.button.secondary { border-color: var(--line-strong); background: var(--gray-a3); color: var(--gray-12); }
.button.success { border-color: var(--green-a7); background: var(--green-soft); color: var(--green); }
.button.danger { border-color: var(--red-a7); background: var(--danger-soft); color: var(--danger); }
.button.small { min-height: var(--control-height); padding: var(--button-padding-small); }
.eyebrow { display: block; margin-bottom: var(--space-2); color: var(--accent); font-size: var(--text-2xs); font-weight: var(--font-weight-black); letter-spacing: .13em; text-transform: uppercase; }
.eyebrow.green { color: var(--green); }
.eyebrow.purple { color: var(--purple); }
.breadcrumbs { display: flex; gap: var(--space-2); align-items: center; margin-bottom: var(--space-6); color: var(--gray-11); font-size: var(--text-sm); }
.breadcrumbs a:hover { color: var(--gray-12); }
.page-heading, .section-heading, .panel-heading { display: flex; align-items: end; justify-content: space-between; gap: var(--section-gap); }
.page-heading { margin-bottom: var(--space-6); padding-bottom: var(--space-6); border-bottom: var(--border-width) solid var(--line); }
.page-heading h1, .section-heading h2, .panel-heading h2 { margin-bottom: 5px; }
.page-heading p, .section-heading p { margin-bottom: 0; color: var(--muted); }
.section-heading { margin: var(--space-10) 0 var(--space-5); }
.section-heading > a, .panel-heading > a, .back-link { color: var(--accent); font-weight: var(--font-weight-semibold); font-size: var(--text-sm); }
.compact-heading { align-items: center; }

.pattern-panel { position: relative; overflow: hidden; background: var(--surface-structural); }
.dashboard-hero { min-height: 330px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--space-12) var(--space-7); border-bottom: var(--border-width) solid var(--line); text-align: center; }
.dashboard-hero h1 { max-width: 850px; margin: 0 0 var(--space-3); font-weight: var(--font-weight-medium); }
.dashboard-hero h1 a, .dashboard-hero h1 span { color: var(--accent); text-decoration: underline; text-decoration-color: var(--accent-a7); }
.dashboard-hero > p:not(.eyebrow) { color: var(--gray-11); }
.hero-avatar, .feature-icon { display: grid; place-items: center; border: 1px solid var(--line-strong); background: var(--gray-a3); color: var(--gray-12); }
.hero-avatar { width: 62px; height: 62px; margin-bottom: var(--space-5); font-size: 1.6rem; font-weight: var(--font-weight-bold); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.hero-actions.centered { justify-content: center; }
.guest-hero h1 { font-size: clamp(2.6rem, 6vw, 5rem); }
.dashboard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--section-gap); margin-top: var(--space-6); }
.dashboard-grid > .glass-panel { padding: var(--panel-padding); }
.dashboard-stats { margin-top: var(--space-6); }
.panel-heading { margin-bottom: var(--space-5); }
.activity-list, .ranking-list, .compact-list { display: grid; gap: var(--space-2); }
.activity-row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3); background: var(--gray-a2); border: var(--border-width) solid transparent; }
.activity-row:hover { border-color: var(--line); background: var(--gray-a3); }
.activity-row a { font-weight: var(--font-weight-semibold); }
.activity-row small { display: block; color: var(--gray-11); }
.ranking-row { display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: var(--space-3); padding: var(--space-2); background: var(--gray-a2); }
.ranking-row:hover { background: var(--gray-a3); }
.ranking-row small { display: block; max-width: 380px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ranking-row em { color: var(--gray-11); font-size: .72rem; font-style: normal; }
.rank { display: grid; place-items: center; width: 25px; height: 25px; border: 1px solid var(--line-strong); background: var(--gray-a3); font-size: .72rem; }
.rank-1 { color: var(--yellow-11); border-color: var(--yellow-a8); }
.rank-2 { color: var(--gray-11); }
.rank-3 { color: var(--orange-11); border-color: var(--orange-a7); }
.compact-list a { display: flex; justify-content: space-between; gap: var(--space-3); padding: var(--space-3); background: var(--gray-a2); }
.compact-list a:hover { background: var(--gray-a3); }
.compact-list span { color: var(--muted); font-size: .78rem; }

.home-page .page-shell { width: min(1024px, calc(100% - (2 * var(--space-4)))); padding: var(--space-4) 0; }
.legacy-home { overflow: hidden; background: var(--surface-structural); }
.legacy-hero { position: relative; display: grid; place-items: center; overflow: hidden; border-bottom: var(--border-width) solid var(--line); text-align: center; background: var(--surface-structural); }
.guest-welcome { min-height: 60vh; }
.member-welcome { padding: var(--space-16) var(--space-6); }
.legacy-hero-content { position: relative; z-index: 1; width: min(896px, 100%); padding: var(--space-8) var(--space-6); }
.legacy-hero-icon { width: 64px; height: 64px; display: grid; place-items: center; margin: 0 auto var(--space-4); border: var(--border-width) solid var(--line-strong); background: var(--gray-a3); font-size: var(--text-2xl); }
.legacy-hero h1 { margin-bottom: var(--space-4); font-size: clamp(1.9rem, 4vw, 3.75rem); font-weight: var(--font-weight-regular); line-height: 1.12; }
.member-welcome h1 { max-width: 760px; margin-left: auto; margin-right: auto; font-size: clamp(1.8rem, 3.2vw, 2.25rem); }
.legacy-hero h1 a { color: var(--accent); text-decoration: underline; text-decoration-color: var(--accent-a7); }
.legacy-hero-content > p { max-width: 672px; margin: 0 auto var(--space-8); color: var(--gray-11); font-size: var(--text-lg); }
.legacy-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
.legacy-action { min-height: var(--control-height-large); display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: var(--space-3) var(--space-6); border: var(--border-width) solid var(--line); background: var(--gray-a3); color: var(--ink); font-weight: var(--font-weight-semibold); transition: .2s ease; }
.legacy-action:hover { transform: translateY(-2px); border-color: var(--line-strong); background: var(--gray-a4); box-shadow: var(--shadow-3); }
.legacy-action.primary { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); }
.legacy-action.secondary { background: transparent; }
.device-copy { display: grid; gap: var(--space-2); margin-top: var(--space-8); color: var(--muted); font-size: var(--text-sm); }
.device-copy > div { display: flex; justify-content: center; gap: var(--space-4); }
.device-copy > div span { display: inline-flex; align-items: center; gap: var(--space-2); }
.legacy-features { padding: var(--space-12) var(--space-6); border-bottom: var(--border-width) solid var(--line); }
.legacy-features > header { margin-bottom: var(--space-8); text-align: center; }
.legacy-features h2, .legacy-platform-stats h2, .legacy-cta h2 { font-size: var(--text-xl); font-weight: var(--font-weight-regular); }
.legacy-features header p, .legacy-feature-grid p, .legacy-cta p { color: var(--muted); }
.legacy-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.legacy-feature-grid article { text-align: center; }
.legacy-feature-grid .feature-icon { margin: 0 auto var(--space-3); }
.feature-icon.blue { border-color: var(--accent-a5); background: var(--accent-soft); color: var(--accent); }
.feature-icon.green { border-color: var(--green-a5); background: var(--green-soft); color: var(--green); }
.feature-icon.purple { border-color: var(--violet-a5); background: var(--purple-soft); color: var(--purple); }
.legacy-feature-grid h3 { margin-bottom: var(--space-2); }
.legacy-feature-grid p { margin-bottom: 0; font-size: var(--text-sm); }
.legacy-platform-stats { padding: var(--space-8) var(--space-6); border-bottom: var(--border-width) solid var(--line); background: var(--surface-structural); text-align: center; }
.legacy-platform-stats h2 { margin-bottom: var(--space-6); }
.legacy-platform-stats > div { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.legacy-platform-stats article { display: grid; gap: var(--space-1); }
.legacy-platform-stats strong { font-size: 1.9rem; }
.legacy-platform-stats span { color: var(--muted); font-size: var(--text-sm); }
.accent-icon { color: var(--accent); }
.success-icon { color: var(--green); }
.purple-icon { color: var(--purple); }
.legacy-cta { padding: var(--space-8) var(--space-6); text-align: center; }
.legacy-cta h2 { margin-bottom: var(--space-3); }
.legacy-cta p { margin-bottom: var(--space-6); }
.legacy-dashboard-content { padding: var(--space-16) var(--space-6); background: var(--surface-structural); }
.legacy-dashboard-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); align-items: stretch; }
.legacy-dashboard-panel { min-width: 0; display: flex; flex-direction: column; padding: var(--panel-padding); border: var(--border-width) solid var(--line); background: var(--surface-structural); }
.legacy-dashboard-panel h2 { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-4); font-size: var(--text-lg); }
.legacy-panel-list { flex: 1; display: grid; align-content: start; gap: var(--space-3); }
.legacy-activity-row, .legacy-ranking-row { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3); border-bottom: var(--border-width) solid var(--line); background: var(--surface-structural); }
.legacy-activity-row:hover, .legacy-ranking-row:hover { background: var(--gray-a3); }
.legacy-activity-copy { min-width: 0; flex: 1; font-size: var(--text-sm); }
.legacy-activity-copy a, .legacy-ranking-row a { font-weight: var(--font-weight-medium); }
.legacy-activity-copy > small, .legacy-ranking-row small { display: block; color: var(--muted); }
.legacy-row-detail { max-width: 150px; color: var(--gray-11); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legacy-ranking-row > div { min-width: 0; flex: 1; }
.legacy-ranking-row small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legacy-action-count { display: inline-flex; align-items: center; gap: var(--space-1); color: var(--muted); font-size: var(--text-xs); white-space: nowrap; }
.legacy-panel-link { align-self: center; margin-top: var(--space-4); color: var(--accent); font-size: var(--text-sm); }

/* Radix Themes migration: home */
body.home-page { background: radial-gradient(ellipse 120% 700px at 50% 0%, var(--accent-a4), transparent 85%), var(--color-background) !important; }
.radix-home { overflow: hidden; background: transparent !important; }
.radix-home-hero { position: relative; display: grid; place-items: center; overflow: visible; border-bottom: var(--border-width) solid var(--gray-a5); text-align: center; background: radial-gradient(circle at 50% 0%, var(--accent-a4), transparent 75%), var(--color-background); }
.home-page .radix-home, .home-page .radix-home-hero { background: transparent !important; }
.radix-home-hero.guest-welcome { min-height: min(70vh, 720px); padding-top: 108px; padding-bottom: var(--space-8); }
.radix-home-hero.member-welcome { padding: 108px var(--space-6) var(--space-8); }
.radix-home-hero-content { width: min(896px, 100%); padding: var(--space-4) var(--space-6) var(--space-8); }
.radix-home-avatar { margin-bottom: var(--space-5); box-shadow: var(--shadow-2); }
.radix-home-hero h1 { margin-bottom: var(--space-4); line-height: 1.08; text-wrap: balance; }
.radix-home-hero h1 a { color: var(--accent-11); text-decoration: underline; text-decoration-color: var(--accent-a7); text-underline-offset: 4px; }
.radix-home-hero-content > p { max-width: 672px; margin-bottom: var(--space-7); text-wrap: balance; }

/* Radix Toast Notification System */
.radix-toast-viewport { position: fixed; bottom: 0; right: 0; display: flex; flex-direction: column; padding: var(--space-4); gap: var(--space-2); width: min(420px, 100vw); max-width: 100vw; margin: 0; list-style: none; z-index: 2147483647; outline: none; pointer-events: none; }
.radix-toast-root { pointer-events: auto; position: relative; display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-radius: var(--radius-3); background: var(--color-surface); border: 1px solid var(--gray-a6); box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .5), 0 4px 12px 0 rgba(0, 0, 0, .3); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); transform-origin: bottom right; }
.radix-toast-root[data-state="open"] { animation: toast-slide-in 150ms cubic-bezier(0.16, 1, 0.3, 1); }
.radix-toast-root[data-state="closed"] { animation: toast-hide 100ms ease-in; }
.radix-toast-root[data-swipe="move"] { transform: translateX(var(--radix-toast-swipe-move-x)); }
.radix-toast-root[data-swipe="cancel"] { transform: translateX(0); transition: transform 200ms ease-out; }
.radix-toast-root[data-swipe="end"] { animation: toast-swipe-out 100ms ease-out; }
.radix-toast-success { border-color: var(--green-a6); }
.radix-toast-error { border-color: var(--red-a6); }
.radix-toast-warning { border-color: var(--amber-a6); }
.radix-toast-info { border-color: var(--accent-a6); }
@keyframes toast-slide-in { from { transform: translateX(calc(100% + var(--space-4))); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes toast-hide { from { opacity: 1; } to { opacity: 0; } }
@keyframes toast-swipe-out { from { transform: translateX(var(--radix-toast-swipe-end-x)); } to { transform: translateX(calc(100% + var(--space-4))); } }

/* Soft Animated Theme Transition */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
  transition: background-color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              fill 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              stroke 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
  transition-delay: 0s !important;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.35s;
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.radix-home-actions { margin-top: var(--space-6); }
.radix-home .device-copy { margin-top: var(--space-7); }
.radix-home .device-copy .rt-Text { display: inline-flex; align-items: center; gap: var(--space-2); }
.radix-home-section, .radix-dashboard-content { padding: var(--space-10) var(--space-6); }
.radix-dashboard-grid { width: 100%; }
.radix-dashboard-panel { min-width: 0; }
.radix-activity-row, .radix-ranking-row { min-width: 0; padding: var(--space-3) 0; border-bottom: var(--border-width) solid var(--gray-a5); }
.radix-activity-row:first-child, .radix-ranking-row:first-child { padding-top: 0; }
.radix-row-copy { min-width: 0; flex: 1; }
.radix-row-detail { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.radix-definition { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.radix-panel-link { align-self: flex-start; margin-top: var(--space-4); }
.radix-features { border-bottom: 0; }
.radix-feature-card { height: 100%; }
.radix-feature-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: var(--radius-3); }
.radix-feature-icon.indigo { background: var(--accent-a3); color: var(--accent-11); }
.radix-feature-icon.green { background: var(--green-a3); color: var(--green-11); }
.radix-feature-icon.violet { background: var(--violet-a3); color: var(--violet-11); }
.radix-platform-stats { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.radix-home-cta { padding-top: var(--space-8); padding-bottom: var(--space-10); text-align: center; }
.radix-cta-icon { width: 24px; height: 24px; color: var(--accent-11); }

.feature-header { display: flex; align-items: center; gap: var(--space-5); margin-bottom: var(--space-6); padding: var(--panel-padding); }
.feature-header h1 { margin-bottom: 5px; font-size: 2rem; }
.feature-header p { margin: 0; color: var(--muted); }
.feature-icon { flex: 0 0 auto; width: 48px; height: 48px; font-size: 1.35rem; }
.feature-icon .icon { width: 24px; height: 24px; }
.modes-page, .study-workspace { width: min(960px, 100%); margin: auto; }
.modes-intro { align-items: flex-start; }
.mode-section { margin: var(--space-9) 0; }
.mode-section-heading { display: flex; align-items: center; gap: var(--space-4); margin-bottom: var(--space-5); }
.mode-section-heading.compact { margin-bottom: var(--space-6); }
.mode-section-heading h2, .mode-section-heading p { margin-bottom: 0; }
.mode-section-heading p { margin-top: var(--space-1); color: var(--muted); }
.mode-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--section-gap); }
.mode-card { min-height: 240px; display: flex; flex-direction: column; gap: var(--space-4); padding: var(--panel-padding); border: var(--border-width) solid var(--line); background: var(--surface-structural); transition: .18s ease; }
.mode-card:hover { transform: translateY(-2px); border-color: var(--accent-a7); }
.mode-card p { flex: 1; margin-bottom: 0; color: var(--gray-11); }
.mode-card small { display: block; margin-top: var(--space-1); color: var(--muted); }
.mode-card.full { width: 100%; min-height: 190px; }
.mode-card-header, .mode-card-footer { display: flex; align-items: center; gap: var(--space-4); }
.mode-card-header h3 { margin-bottom: 0; }
.mode-card-footer { justify-content: space-between; margin-top: auto; }
.mode-card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); color: var(--muted); font-size: var(--text-xs); }
.mode-card-meta .icon:nth-of-type(2) { margin-left: var(--space-2); }
.learning-tips { margin-top: var(--space-10); padding: var(--panel-padding); }
.tip-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap); }
.learning-tip { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--panel-padding-compact); border: var(--border-width) solid var(--line); }
.learning-tip > .icon { width: var(--space-5); height: var(--space-5); margin-top: var(--space-1); }
.learning-tip h3 { margin-bottom: var(--space-1); font-size: var(--text-sm); }
.learning-tip p { margin-bottom: 0; color: var(--muted); font-size: var(--text-xs); }

/* Radix Themes migration: Modes */
.radix-modes-page { width: min(960px, 100%); margin: auto; }
.radix-modes-hero-icon { width: 48px; height: 48px; display: grid; place-items: center; border: var(--border-width) solid var(--gray-a6); border-radius: var(--radius-3); background: var(--gray-a3); color: var(--accent-11); }
.radix-section-icon { width: 36px; height: 36px; display: grid; place-items: center; flex: 0 0 auto; border-radius: var(--radius-3); }
.radix-section-icon.indigo { background: var(--accent-a3); color: var(--accent-11); }
.radix-section-icon.violet { background: var(--violet-a3); color: var(--violet-11); }
.radix-section-icon.green { background: var(--green-a3); color: var(--green-11); }
.radix-section-icon.orange { background: var(--orange-a3); color: var(--orange-11); }
.radix-mode-icon { width: 40px; height: 40px; display: grid; place-items: center; flex: 0 0 auto; border-radius: var(--radius-3); }
.radix-mode-icon.green { background: var(--green-a3); color: var(--green-11); }
.radix-mode-icon.indigo { background: var(--accent-a3); color: var(--accent-11); }
.radix-mode-icon.violet { background: var(--violet-a3); color: var(--violet-11); }
.radix-tip-icon { width: 28px; height: 28px; display: grid; place-items: center; flex: 0 0 auto; border-radius: var(--radius-2); }
.radix-tip-icon.green { background: var(--green-a3); color: var(--green-11); }
.radix-tip-icon.indigo { background: var(--accent-a3); color: var(--accent-11); }
.radix-tip-icon.violet { background: var(--violet-a3); color: var(--violet-11); }
.radix-tip-icon.orange { background: var(--orange-a3); color: var(--orange-11); }
.radix-tip-item { padding: var(--space-3); border: var(--border-width) solid var(--gray-a5); border-radius: var(--radius-3); background: var(--color-panel-translucent); }

/* Top Header Bar: Breadcrumbs on Left, Description on Right */
.page-top-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-5); flex-wrap: wrap; }
.page-top-bar .breadcrumbs { margin-bottom: 0; }
.page-top-desc { color: var(--gray-11); font-size: var(--text-2); text-align: right; }
@media (max-width: 640px) {
  .page-top-bar { flex-direction: column; align-items: flex-start; gap: var(--space-1); }
  .page-top-desc { text-align: left; }
}

/* Radix Themes migration: Community & Social */
.radix-community-page, .radix-leaderboard-page, .profile-page { width: min(960px, 100%); margin: auto; }
.radix-community-hero { padding: var(--space-4) var(--space-5); }
.radix-community-page .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); margin-bottom: var(--space-6); }
.radix-community-page .metric { display: flex; flex-direction: column; justify-content: center; padding: var(--space-4); }
.activity-list { width: 100%; display: flex; flex-direction: column; gap: var(--space-2); }
.radix-activity-row { width: 100%; box-sizing: border-box; padding: var(--space-3) var(--space-4); border: var(--border-width) solid var(--gray-a4); border-radius: var(--radius-3); background: var(--gray-a2); transition: background-color .15s ease, border-color .15s ease; }
.radix-activity-row:hover { background: var(--gray-a3); border-color: var(--accent-a6); }
.radix-public-list-card { display: block; width: 100%; box-sizing: border-box; padding: var(--space-3) var(--space-4); border: var(--border-width) solid var(--gray-a4); border-radius: var(--radius-3); background: var(--gray-a2); transition: transform .15s ease, border-color .15s ease, background-color .15s ease; }
.radix-public-list-card:hover { transform: translateY(-1px); border-color: var(--accent-a7); background: var(--gray-a3); }

.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--grid-gap); margin-bottom: var(--space-9); }
.stats-grid.four { grid-template-columns: repeat(4, 1fr); }
.metric { padding: var(--panel-padding-compact); }
.metric strong { display: block; margin-top: var(--space-2); font-size: var(--text-2xl); }
.metric span { color: var(--muted); font-size: .8rem; }
a.metric:hover { border-color: var(--accent-a7); background: var(--gray-a3); }
.progress-panel { margin-bottom: var(--space-6); padding: var(--panel-padding-compact); }
.progress-panel > div:first-child { display: flex; justify-content: space-between; }
.progress-track { height: 6px; margin-top: 12px; overflow: hidden; background: var(--gray-a3); }
.progress-track span { display: block; width: var(--progress, 0%); height: 100%; background: linear-gradient(90deg, var(--green-9), var(--green-10)); }

.word-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--grid-gap); }
.word-card, .list-card { min-height: 205px; padding: var(--panel-padding); transition: .18s ease; }
.word-card:hover, .list-card:hover { transform: translateY(-3px); border-color: var(--accent-a7); background: var(--gray-a3); }
.word-card h3 { margin: 20px 0 8px; font-size: 1.55rem; }
.word-card p, .list-card p { color: var(--muted); display: -webkit-box; overflow: hidden; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }
.word-type, .specialized { display: inline-flex; width: fit-content; padding: var(--space-1) var(--space-2); border: var(--border-width) solid var(--accent-a5); background: var(--accent-soft); color: var(--accent-strong); font-size: var(--text-2xs); font-weight: var(--font-weight-black); letter-spacing: .08em; text-transform: uppercase; }
.translation { color: var(--accent-strong); font-weight: var(--font-weight-bold); }
[data-language-content][hidden],
html[data-learning-language="en-tr"] [data-language-content="en-en"],
html[data-learning-language="en-en"] [data-language-content="en-tr"] { display: none !important; }
html[data-learning-language="en-en"] .word-row { grid-template-columns: minmax(170px,.65fr) 1.5fr; }
.search-bar { display: grid; grid-template-columns: 1fr 220px auto; gap: var(--space-2); margin-bottom: var(--space-6); }
.search-bar.compact { grid-template-columns: 1fr auto; max-width: 700px; }
.inline-filter { min-width: 210px; }
input, textarea, select { width: 100%; min-height: var(--control-height); padding: var(--control-padding); border: var(--border-width) solid var(--gray-a7); border-radius: var(--radius-2); outline: none; background: var(--color-surface); color: var(--ink); }
input:focus, textarea:focus, select:focus { border-color: var(--accent-a8); box-shadow: 0 0 0 3px var(--accent-a3); }
select option { background: var(--color-panel-solid); }
textarea { resize: vertical; }

/* EJS remains the no-JS fallback, but must not flash before its React replacement mounts. */
[data-react-root]:not([data-react-mounted="true"]) { visibility: hidden; }
.word-list { display: grid; border-top: 1px solid var(--line); }
.word-row { display: grid; grid-template-columns: minmax(170px,.65fr) 1.5fr minmax(110px,.45fr); gap: var(--section-gap); align-items: center; padding: var(--space-4) var(--space-3); border-bottom: var(--border-width) solid var(--line); }
.word-row:hover { background: var(--gray-a2); }
.word-row h2 { margin: 7px 0 0; font-size: 1.3rem; }
.word-row p { margin: 0; color: var(--muted); }
.words-route .page-shell { width: min(1440px, calc(100% - (2 * var(--space-4)))); padding-top: var(--space-5); }
.legacy-words-page { min-width: 0; }
.legacy-words-page .breadcrumbs { margin-bottom: var(--space-6); }
.legacy-words-heading { margin-bottom: var(--space-4); padding: var(--space-4) var(--space-5); border: var(--border-width) solid var(--line); background: var(--gray-a2); }
.legacy-words-heading h1 { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-2); font-size: var(--text-xl); }
.legacy-words-heading h1 .icon { width: var(--space-5); height: var(--space-5); }
.legacy-words-heading p { margin: 0; color: var(--muted); font-size: var(--text-sm); }
.legacy-word-statuses, .legacy-word-types { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin-bottom: var(--space-4); }
.legacy-filter-button, .legacy-type-filter { min-height: 34px; display: inline-flex; align-items: center; gap: var(--space-1); padding: 6px var(--space-3); border: var(--border-width) solid var(--line-strong); background: var(--gray-a3); color: var(--gray-11); font-size: var(--text-sm); transition: .18s ease; }
.legacy-filter-button:hover, .legacy-type-filter:hover { border-color: var(--accent-a7); background: var(--gray-a4); color: var(--ink); }
.legacy-filter-button.active { border-color: var(--accent-a8); background: var(--accent-a4); color: var(--accent-strong); }
.legacy-filter-button.known.active { border-color: var(--green-a7); background: var(--green-soft); color: var(--green); }
.legacy-filter-button.unknown.active, .legacy-filter-button.favorite.active { border-color: var(--red-a7); background: var(--danger-soft); color: var(--danger); }
.legacy-filter-button strong { min-width: var(--space-6); padding: 2px var(--space-1); background: var(--gray-a3); color: inherit; text-align: center; }
.legacy-word-types > span { display: inline-flex; align-items: center; gap: var(--space-2); margin-right: var(--space-1); color: var(--muted); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.legacy-type-filter.active { border-color: var(--violet-a7); background: var(--purple-soft); color: var(--purple); }
.legacy-type-filter.clear { border-color: var(--red-a7); color: var(--danger); }
.legacy-search-context { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-3); padding: var(--space-2) var(--space-3); border-left: 2px solid var(--accent); color: var(--muted); font-size: var(--text-sm); }
.legacy-search-context a { color: var(--accent-strong); }
.legacy-words-table-wrap { width: 100%; border: var(--border-width) solid var(--line); background: var(--gray-a2); }
.legacy-words-table { min-width: 1040px; table-layout: fixed; }
.legacy-words-table col.word { width: 14%; }
.legacy-words-table col.definition { width: 26%; }
.legacy-words-table col.turkish { width: 19%; }
.legacy-words-table col.score { width: 7%; }
.legacy-words-table col.popularity { width: 8%; }
.legacy-words-table col.added { width: 9%; }
.legacy-words-table col.shown { width: 9%; }
.legacy-words-table col.actions { width: 8%; }
.legacy-words-table.guest { min-width: 760px; }
.legacy-words-table.guest col.word { width: 18%; }
.legacy-words-table.guest col.definition { width: 39%; }
.legacy-words-table.guest col.turkish { width: 27%; }
.legacy-words-table.guest col.popularity { width: 8%; }
.legacy-words-table.guest col.added { width: 8%; }
.legacy-words-table th, .legacy-words-table td { height: 40px; padding: var(--space-2); font-size: var(--text-sm); line-height: 1.25; }
.legacy-words-table th { color: var(--muted); font-size: var(--text-xs); letter-spacing: 0; text-transform: none; }
.legacy-words-table th a, .legacy-words-table th span { display: flex; align-items: center; gap: var(--space-1); white-space: nowrap; }
.legacy-words-table th a:hover { color: var(--ink); }
.legacy-words-table .sort-icon { margin-left: var(--space-1); opacity: .45; }
.legacy-words-table .sort-icon.active { color: var(--accent); opacity: 1; }
.legacy-word-name { color: var(--ink); font-weight: var(--font-weight-bold); }
.legacy-word-name:hover { color: var(--accent-strong); }
.cell-truncate { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legacy-score, .legacy-popularity { display: inline-flex; align-items: center; gap: var(--space-1); color: var(--muted); white-space: nowrap; }
.legacy-popularity { color: var(--accent); }
.legacy-word-actions { display: flex; align-items: center; gap: var(--space-2); }
.legacy-word-actions form { margin: 0; }
.legacy-word-actions a, .legacy-word-actions .icon-button { width: var(--space-6); height: var(--space-6); min-height: 0; display: grid; place-items: center; padding: 0; border: 0; background: transparent; color: var(--gray-11); }
.legacy-word-actions a:hover { color: var(--accent-strong); }
.legacy-word-actions .icon-button:hover, .legacy-word-actions .icon-button.selected { color: var(--danger); transform: none; }
.legacy-words-empty { padding: var(--space-8) !important; color: var(--muted); text-align: center; }
.legacy-words-pagination, .search-pagination { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); margin-top: var(--space-4); color: var(--muted); font-size: var(--text-sm); }
.legacy-words-pagination nav, .search-pagination nav { display: flex; align-items: center; gap: var(--space-1); }
.legacy-words-pagination nav > *, .search-pagination nav > * { min-width: var(--space-8); height: var(--space-8); display: grid; place-items: center; padding: 0 var(--space-2); border: var(--border-width) solid transparent; }
.legacy-words-pagination nav a, .search-pagination nav a { color: var(--gray-11); border-color: var(--line-strong); background: var(--gray-a2); }
.legacy-words-pagination nav a:hover, .search-pagination nav a:hover { color: var(--ink); background: var(--gray-a4); }
.legacy-words-pagination nav strong, .search-pagination nav strong { border-color: var(--accent-a8); background: var(--accent-a4); color: var(--accent-strong); }

/* Radix Themes migration: Words archive */
.radix-words-page { min-width: 0; }
.radix-breadcrumbs { margin-bottom: var(--space-4); }
.radix-breadcrumbs a:hover { color: var(--accent-11); }
.radix-words-heading { margin-bottom: var(--space-4); }
.radix-heading-icon { width: var(--space-10); height: var(--space-10); flex: 0 0 auto; display: grid; place-items: center; border-radius: var(--radius-3); background: var(--accent-a3); color: var(--accent-11); }
.radix-word-statuses, .radix-word-types { margin-bottom: var(--space-3); }
.radix-word-statuses > *, .radix-word-types > * { flex: 0 0 auto; }
.radix-filter-label, .radix-table-heading { display: inline-flex; align-items: center; gap: var(--space-1); white-space: nowrap; }
.radix-search-context { margin-bottom: var(--space-3); }
.radix-words-table { width: 100%; border: var(--border-width) solid var(--gray-a6); }
.radix-words-table .rt-TableRootTable { width: 100%; min-width: 0; table-layout: fixed; }
.radix-words-table.guest .rt-TableRootTable { min-width: 760px; }
.radix-words-table col.word { width: 14%; }
.radix-words-table col.definition { width: 22%; }
.radix-words-table col.turkish { width: 18%; }
.radix-words-table col.score { width: 7%; }
.radix-words-table col.popularity { width: 9%; }
.radix-words-table col.added { width: 9%; }
.radix-words-table col.shown { width: 10%; }
.radix-words-table col.actions { width: 11%; }
.radix-words-table.guest col.word { width: 18%; }
.radix-words-table.guest col.definition { width: 39%; }
.radix-words-table.guest col.turkish { width: 27%; }
.radix-words-table.guest col.popularity { width: 8%; }
.radix-words-table.guest col.added { width: 8%; }
.radix-words-table .rt-TableCell { height: 40px; overflow: hidden; padding: var(--space-2); font-size: var(--text-sm); line-height: 1.25; text-overflow: ellipsis; }
.radix-words-table .rt-TableCell > * { max-width: 100%; }
.radix-words-actions-cell { overflow: visible !important; min-width: 96px; }
.radix-words-table:not(.guest) .radix-words-actions-cell { position: sticky; right: 0; z-index: 1; border-left: var(--border-width) solid var(--gray-a5); background: var(--color-panel-solid); }
.radix-words-table:not(.guest) thead .radix-words-actions-cell { z-index: 2; }
.radix-table-sort { width: 100%; min-width: 0; min-height: 24px; justify-content: flex-start; overflow: hidden; margin-left: calc(-1 * var(--space-2)); padding: 0 var(--space-2); white-space: nowrap; }
.radix-sort-icon { margin-left: var(--space-1); opacity: .45; }
.radix-sort-icon.active { color: var(--accent-11); opacity: 1; }
.radix-word-name:hover { color: var(--accent-11); }
.radix-table-empty { padding: var(--space-6); }
.radix-word-actions { gap: 0 !important; }
.radix-word-actions form { margin: 0; }
.radix-pagination { margin-top: var(--space-4); }
.radix-pagination nav { display: flex; align-items: center; gap: var(--space-1); }
.radix-pagination nav > .rt-Text { min-width: var(--space-7); text-align: center; }

.search-route .page-shell { width: min(1180px, calc(100% - (2 * var(--page-gutter)))); padding-top: var(--space-3); }
.search-page { min-width: 0; }
.search-hero { display: grid; grid-template-columns: var(--space-10) minmax(0, 1fr); align-items: center; column-gap: var(--space-3); margin-bottom: var(--space-3); padding: var(--space-3) var(--space-4); border: var(--border-width) solid var(--line); background: var(--gray-a2); text-align: left; }
.search-hero-icon { grid-row: 1 / 3; width: var(--space-10); height: var(--space-10); display: grid; place-items: center; margin: 0; border: var(--border-width) solid var(--accent-a7); background: var(--accent-soft); color: var(--accent-strong); }
.search-hero-icon .icon { width: var(--space-5); height: var(--space-5); }
.search-hero h1 { align-self: end; margin: 0; font-size: var(--text-lg); }
.search-hero p { align-self: start; margin: var(--space-1) 0 0; color: var(--muted); font-size: var(--text-xs); }
.search-refine, .search-results { margin-bottom: var(--space-3); border: var(--border-width) solid var(--line); background: var(--gray-a2); }
.search-refine { padding: var(--space-3) var(--space-4); }
.search-refine h2, .search-results h2 { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-md); }
.search-refine h2 { margin: 0 0 var(--space-2); }
.search-primary-row { display: grid; grid-template-columns: 1fr auto auto; gap: var(--space-3); }
.search-primary-row > label { position: relative; }
.search-primary-row > label > .icon { position: absolute; top: 50%; left: var(--space-3); z-index: 1; transform: translateY(-50%); color: var(--muted); }
.search-primary-row input { padding-left: var(--space-10); }
.search-submit { border-color: var(--green-a7); color: var(--green); background: var(--green-soft); }
.search-primary-row input, .search-primary-row .button, .search-options select, .search-apply { min-height: 36px; }
.search-options { display: grid; grid-template-columns: 1fr 1fr auto; gap: var(--space-3); align-items: end; margin-top: var(--space-2); }
.search-options.guest { grid-template-columns: 1fr auto; }
.search-options label > span { display: block; margin-bottom: var(--space-1); color: var(--muted); font-size: var(--text-xs); }
.search-results > h2 { margin: 0; padding: var(--space-3); border-bottom: var(--border-width) solid var(--line); }
.search-results .table-wrap { overflow-x: clip; border: 0; }
.search-results-table { width: 100%; min-width: 0; table-layout: fixed; }
.search-results-table.guest { min-width: 0; }
.search-results-table th, .search-results-table td { height: 40px; overflow: hidden; padding: var(--space-2); font-size: var(--text-sm); line-height: 1.25; text-overflow: ellipsis; }
.search-results-table th span { display: inline-flex; align-items: center; gap: var(--space-2); }
.search-results-table th:nth-child(1) { width: 16%; }
.search-results-table th:nth-child(2) { width: 43%; }
.search-results-table th:nth-child(3) { width: 8%; }
.search-results-table th:nth-child(4) { width: 11%; }
.search-results-table th:nth-child(5) { width: 12%; }
.search-results-table th:nth-child(6) { width: 10%; }
.search-results-table.guest th:nth-child(1) { width: 22%; }
.search-results-table.guest th:nth-child(2) { width: 58%; }
.search-results-table.guest th:nth-child(3) { width: 20%; }
.search-results-table:not(.guest) th:last-child, .search-results-table:not(.guest) td:last-child { position: sticky; right: 0; z-index: 1; border-left: var(--border-width) solid var(--line); background: var(--surface-overlay); }
.search-results-table:not(.guest) th:last-child { z-index: 2; }
.search-actions { display: grid; grid-template-columns: repeat(2, var(--space-7)); align-items: center; justify-content: start; gap: var(--space-1); }
.search-actions a { width: var(--space-7); height: var(--space-7); display: grid; place-items: center; padding: 0; border: var(--border-width) solid var(--line-strong); color: var(--gray-11); }
.search-actions a:first-child { border-color: var(--accent-a6); color: var(--accent-strong); }
.search-empty { display: grid; justify-items: center; gap: var(--space-4); padding: var(--space-10); border: var(--border-width) solid var(--line); text-align: center; }
.search-empty > .icon { width: var(--space-10); height: var(--space-10); color: var(--muted); }
.search-empty p { margin: 0; color: var(--muted); }
.search-empty > div { display: flex; gap: var(--space-5); color: var(--muted); font-size: var(--text-sm); }
.search-empty > div span { display: inline-flex; align-items: center; gap: var(--space-2); }
.search-empty > div .icon { color: var(--green); }

/* Radix Themes migration: Search */
.radix-search-page { min-width: 0; }
.radix-search-hero, .radix-search-refine, .radix-search-results { margin-bottom: var(--space-3); }
.radix-search-primary .rt-TextFieldRoot { min-width: 0; flex: 1; }
.radix-search-options > label { min-width: 0; flex: 1; display: grid; gap: var(--space-1); }
.radix-search-options .rt-SelectTrigger { width: 100%; }
.radix-results-heading { padding: var(--space-2) var(--space-2) var(--space-3); border-bottom: var(--border-width) solid var(--gray-a5); }
.radix-search-table { margin: 0 calc(-1 * var(--space-1)) calc(-1 * var(--space-1)); }
.radix-search-table .rt-TableRootTable { min-width: 0; table-layout: fixed; }
.radix-search-table col.word { width: 16%; }
.radix-search-table col.definition { width: 43%; }
.radix-search-table col.score { width: 8%; }
.radix-search-table col.added { width: 11%; }
.radix-search-table col.shown { width: 12%; }
.radix-search-table col.actions { width: 10%; }
.radix-search-table.guest col.word { width: 22%; }
.radix-search-table.guest col.definition { width: 58%; }
.radix-search-table.guest col.added { width: 20%; }
.radix-search-table .rt-TableCell { height: 40px; overflow: hidden; padding: var(--space-2); font-size: var(--text-sm); line-height: 1.25; text-overflow: ellipsis; }
.radix-search-table:not(.guest) .radix-search-actions-cell { position: sticky; right: 0; z-index: 1; border-left: var(--border-width) solid var(--gray-a5); background: var(--color-panel-solid); }
.radix-search-table:not(.guest) thead .radix-search-actions-cell { z-index: 2; }
.radix-search-empty { text-align: center; }
.radix-empty-icon { width: var(--space-10); height: var(--space-10); color: var(--gray-9); }

/* Radix Table owns a horizontal ScrollArea. Keep it content-height and never create a nested vertical page. */
.radix-words-table .rt-ScrollAreaRoot,
.radix-search-table .rt-ScrollAreaRoot,
.radix-words-table .rt-ScrollAreaViewport,
.radix-search-table .rt-ScrollAreaViewport { height: auto; }
.radix-words-table .rt-ScrollAreaViewport,
.radix-search-table .rt-ScrollAreaViewport { overflow-y: hidden !important; }
.radix-words-table .rt-ScrollAreaViewport > *,
.radix-search-table .rt-ScrollAreaViewport > * { flex-grow: 0; }
.radix-words-table .rt-ScrollAreaScrollbar[data-orientation="vertical"],
.radix-search-table .rt-ScrollAreaScrollbar[data-orientation="vertical"] { display: none; }

@media (min-width: 901px) {
  .radix-words-table .rt-ScrollAreaRoot,
  .radix-search-table .rt-ScrollAreaRoot { overflow: visible; }
  .radix-words-table .rt-ScrollAreaViewport,
  .radix-search-table .rt-ScrollAreaViewport { overflow-x: hidden !important; }
  .radix-words-table .rt-ScrollAreaViewport > *,
  .radix-search-table .rt-ScrollAreaViewport > * { width: 100% !important; }
  .radix-words-table .rt-ScrollAreaScrollbar[data-orientation="horizontal"],
  .radix-search-table .rt-ScrollAreaScrollbar[data-orientation="horizontal"] { display: none; }
  .radix-words-table.guest .rt-TableRootTable { min-width: 0; }
}
.pagination { display: grid; grid-template-columns: 1fr auto 1fr; gap: var(--space-5); align-items: center; margin-top: var(--space-6); color: var(--muted); }
.pagination a { color: var(--accent); font-weight: var(--font-weight-bold); }
.pagination a:last-child { text-align: right; }
.back-link { display: inline-block; margin-bottom: 25px; }
.word-detail-route .page-shell { width: min(960px, calc(100% - (2 * var(--page-gutter)))); padding-top: var(--space-6); }
.radix-word-profile { display: grid; gap: var(--space-5); }
.radix-word-breadcrumbs { margin-bottom: 0; }
.radix-word-breadcrumbs svg { width: var(--space-3); height: var(--space-3); }
.radix-word-breadcrumbs > :last-child { color: var(--gray-12); }
.radix-word-hero { position: relative; min-height: 150px; display: grid; place-items: center; text-align: center; }
.radix-word-hero h1 { margin: 0; overflow-wrap: anywhere; }
.radix-word-speak { position: absolute; top: var(--space-3); left: var(--space-3); }
.radix-word-type { position: absolute; top: var(--space-3); right: var(--space-3); text-transform: capitalize; }
.radix-word-pronunciations code { color: var(--green-11); font-family: var(--code-font-family); }
.radix-dictionary-card { display: grid; gap: var(--space-4); }
.radix-dictionary-heading { padding-bottom: var(--space-3); border-bottom: var(--border-width) solid var(--gray-a5); }
.radix-dictionary-heading h2, .radix-dictionary-heading p { margin: 0; }
.radix-dictionary-heading p { margin-top: var(--space-1); }
.radix-definition-item { background: var(--gray-a2); }
.radix-definition-number { min-width: var(--space-6); justify-content: center; font-variant-numeric: tabular-nums; }
.radix-definition-copy { min-width: 0; flex: 1 1 auto; }
.radix-definition-copy p { margin-bottom: 0; line-height: var(--leading-body); }
.radix-definition-copy > [data-language-content] { display: block; margin-top: var(--space-1); font-style: italic; }
.radix-definition-example { margin-top: var(--space-2) !important; color: var(--gray-11); }
.radix-definition-example span { color: var(--gray-9); }
.radix-example-row { padding: var(--space-3) 0; border-bottom: var(--border-width) solid var(--gray-a4); }
.radix-example-row:last-child { padding-bottom: 0; border-bottom: 0; }
.radix-example-row p { margin-bottom: var(--space-1); line-height: var(--leading-body); }
.radix-relation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.radix-relation-grid a { cursor: pointer; }
.radix-collocation-row { background: var(--gray-a2); }
.radix-word-metadata svg { display: inline-block; margin-right: var(--space-1); vertical-align: -2px; }
.radix-word-actions, .radix-word-actions form { display: flex; align-items: center; }
.radix-word-guest-actions { width: 100%; }
.radix-word-two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.radix-word-stats-card, .radix-word-activity-card { min-width: 0; }
.radix-word-metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); text-align: center; }
.radix-word-metric { min-width: 0; }
.radix-word-metric > :first-child { overflow: hidden; text-overflow: ellipsis; }
.radix-word-progress .rt-ProgressRoot { margin-top: var(--space-1); }
.radix-word-signin-empty { min-height: 132px; justify-content: center; text-align: center; }
.radix-word-signin-empty p { margin: 0; }
.radix-word-action-list { max-height: 320px; overflow-y: auto; }
.radix-word-action-row { min-height: 46px; padding: var(--space-2) 0; border-bottom: var(--border-width) solid var(--gray-a4); }
.radix-word-action-row:last-child { border-bottom: 0; }
.radix-word-action-row time { flex: 0 0 auto; text-align: right; }
.radix-word-action-row a { display: block; margin-top: var(--space-1); }
.radix-word-quick-actions form, .radix-word-quick-actions form .rt-Button { width: 100%; }

/* The server-rendered fallback follows the same composition until React mounts. */
.legacy-radix-card { padding: var(--space-5); border: var(--border-width) solid var(--gray-a5); border-radius: var(--radius-3); background: var(--color-panel-translucent); }
.legacy-word-profile .radix-word-hero { display: flex; flex-direction: column; justify-content: center; }
.legacy-word-profile .radix-word-hero h1 { margin: 0 0 var(--space-3); }
.legacy-word-profile .radix-word-pronunciations { display: flex; gap: var(--space-4); color: var(--gray-11); }
.legacy-word-stack { display: grid; gap: var(--space-3); }
.legacy-word-profile .radix-dictionary-heading > div, .legacy-word-profile .radix-collocation-row, .legacy-word-profile .radix-word-metadata, .legacy-word-profile .radix-word-action-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.legacy-word-profile .radix-dictionary-heading h2, .legacy-word-profile .radix-dictionary-heading p { margin: 0; }
.legacy-word-profile .radix-definition-item, .legacy-word-profile .radix-example-row { display: flex; gap: var(--space-3); padding: var(--space-3); border: var(--border-width) solid var(--gray-a4); background: var(--gray-a2); }
.legacy-word-profile .radix-definition-number { flex: 0 0 auto; }
.legacy-word-profile .radix-relation-grid, .legacy-word-profile .radix-word-two-column, .legacy-word-profile .radix-word-metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.legacy-word-profile .radix-word-metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); text-align: center; }
.legacy-word-profile .radix-word-metric-grid small { display: block; color: var(--gray-11); }
.legacy-progress { display: grid; gap: var(--space-1); margin-top: var(--space-4); }
.legacy-progress progress { width: 100%; }
.legacy-word-profile .radix-word-action-list { margin-top: var(--space-3); }
.legacy-word-profile .radix-word-action-row small { display: block; }
.legacy-quick-actions { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-3); }
.legacy-quick-actions form, .legacy-quick-actions button { width: 100%; }
.pronunciations { display: flex; gap: 17px; color: var(--muted); }
.action-cluster, .flashcard-actions { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: var(--space-2); }
.icon-button { width: 43px; height: 43px; border: 1px solid var(--line-strong); background: var(--gray-a2); color: var(--muted); font-size: 1.1rem; }
.icon-button.selected { color: var(--yellow-11); border-color: var(--yellow-a7); background: var(--yellow-a3); }
.translation-banner { display: flex; align-items: baseline; gap: var(--section-gap); padding: var(--space-5) var(--space-6); border: var(--border-width) solid var(--accent-a5); background: var(--accent-soft); }
.translation-banner span { color: var(--muted); text-transform: uppercase; letter-spacing: .1em; font-size: .68rem; }
.translation-banner strong { font-size: 1.3rem; }
.content-section { display: grid; grid-template-columns: 60px 1fr; gap: var(--space-5); padding: var(--space-9) 0; border-bottom: var(--border-width) solid var(--line); }
.section-number { color: var(--gray-10); font-variant-numeric: tabular-nums; }
.definition-list { padding-left: var(--space-5); }
.definition-list li { padding: var(--space-2) 0 var(--space-5) var(--space-2); }
.definition-list p, .lead { font-size: 1.05rem; }
blockquote { margin: var(--space-3) 0 0; padding-left: var(--space-4); border-left: 2px solid var(--accent); color: var(--muted); font-style: italic; }
.example-list { display: grid; gap: var(--space-2); padding-left: var(--space-5); }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chips a, .chips span { padding: var(--space-2) var(--space-3); border: var(--border-width) solid var(--accent-a4); background: var(--accent-soft); color: var(--accent-strong); }
.chips.muted span { border-color: var(--line); background: transparent; color: var(--muted); }
.vocab-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }

.flashcard-route .page-shell { width: min(1024px, calc(100% - (2 * var(--page-gutter)))); padding-top: var(--space-6); }
.radix-flashcard-page { width: min(960px, 100%); margin: 0 auto; }
.radix-flashcard-topline { margin-bottom: var(--space-5); }
.radix-flashcard-topline .breadcrumbs { margin: 0; }
.radix-flashcard-filter { min-width: 180px; }
.radix-flashcard-message { min-height: 0; margin: 0 0 var(--space-3); padding: var(--space-2) var(--space-3); border-radius: var(--radius-2); color: var(--gray-11); background: var(--gray-a3); }
.radix-flashcard-message.success { color: var(--green-11); background: var(--green-a3); }
.radix-flashcard-message.warning { color: var(--amber-11); background: var(--amber-a3); }
.radix-flashcard-message.error { color: var(--red-11); background: var(--red-a3); }
.radix-flashcard-empty { max-width: 720px; margin: var(--space-10) auto; text-align: center; }
.radix-flashcard-stage { width: 100%; }
.radix-flashcard-stack { width: min(900px, 100%); display: grid; gap: var(--space-3); margin: 0 auto; }
.radix-flashcard-card { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); width: 100%; min-height: 0; margin: 0; perspective: none; }
.radix-flashcard-word, .radix-flashcard-definition { position: relative; min-height: 148px; }
.radix-flashcard-word { display: grid; place-items: center; text-align: center; }
.radix-flashcard-word h1 { margin: 0; overflow-wrap: anywhere; font-size: var(--font-size-8); }
.radix-flashcard-word h1 a, .legacy-flashcard-word h1 a { color: inherit; text-decoration: none; transition: color .18s ease; }
.radix-flashcard-word h1 a:hover, .legacy-flashcard-word h1 a:hover { color: var(--accent-11); text-decoration: underline; text-underline-offset: 4px; }
.radix-flashcard-speak { position: absolute; top: var(--space-2); left: var(--space-2); }
.radix-flashcard-definition { width: 100%; display: grid; align-content: center; border: 0; color: var(--gray-12); font: inherit; text-align: left; cursor: pointer; }
.radix-flashcard-definition:focus-visible { outline: 2px solid var(--focus-8); outline-offset: 2px; }
.radix-flashcard-definition .flashcard-definition-copy { display: grid; gap: var(--space-2); filter: blur(4px); transition: filter 160ms ease; }
.radix-flashcard-definition:hover .flashcard-definition-copy, .radix-flashcard-definition:focus-visible .flashcard-definition-copy, .radix-flashcard-card.revealed .flashcard-definition-copy { filter: blur(0); }
.radix-flashcard-definition [data-card-example] { font-style: italic; }
.radix-flashcard-metrics { overflow: hidden; }
.radix-flashcard-metrics-grid { grid-template-columns: repeat(4, minmax(64px, .7fr)) minmax(190px, 1.8fr); min-height: 42px; }
.radix-flashcard-metric { min-width: 0; padding: var(--space-2) var(--space-3); border-right: var(--border-width) solid var(--gray-a5); color: var(--gray-11); }
.radix-flashcard-metric:last-child { border-right: 0; }
.radix-flashcard-metric svg { width: var(--space-4); height: var(--space-4); flex: 0 0 auto; }
.radix-flashcard-metric.score svg { color: var(--yellow-11); }
.radix-flashcard-metric.actions svg { color: var(--blue-11); }
.radix-flashcard-metric.streak svg { color: var(--orange-11); }
.radix-flashcard-metric.pool svg { color: var(--violet-11); }
.radix-flashcard-metric.reviewed svg { color: var(--green-11); }
.radix-flashcard-metric.reviewed span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.radix-flashcard-actions { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--space-2); }
.radix-flashcard-actions > :nth-child(1), .radix-flashcard-actions > :nth-child(2) { grid-column: span 3; }
.radix-flashcard-actions > :nth-child(n + 3) { grid-column: span 2; }
.radix-flashcard-actions.guest { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.radix-flashcard-actions.guest > * { grid-column: auto; }
.radix-flashcard-actions .rt-Button { width: 100%; white-space: nowrap; }
.radix-flashcard-panel h2 { margin: 0; }
.radix-shortcut-strip > span { display: inline-flex; align-items: center; gap: var(--space-2); }
.radix-shortcut-strip kbd { min-width: 30px; border-color: var(--gray-a7); border-radius: var(--radius-2); background: var(--gray-a3); }
.radix-flashcard-history summary { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); list-style: none; }
.radix-flashcard-history summary::-webkit-details-marker { display: none; }
.radix-flashcard-history-row { min-height: 36px; }
.radix-flashcard-history-label { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--font-size-2); }
.radix-flashcard-history-mark { width: var(--space-2); height: var(--space-2); border-radius: var(--radius-full); background: currentColor; }
.radix-flashcard-settings .rt-Badge { text-transform: none; letter-spacing: normal; }

.legacy-flashcard-workspace { width: min(960px, 100%); margin: 0 auto; }
.flashcard-topline { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-5); }
.flashcard-topline .breadcrumbs { margin: 0; }
.legacy-flashcard-filter select { min-width: 180px; min-height: var(--control-height); padding-block: var(--space-1); font-size: var(--text-xs); }
.legacy-flashcard-stage { padding: clamp(var(--space-7), 5svh, var(--space-14)) var(--space-6); border-bottom: var(--border-width) solid var(--gray-a2); background: linear-gradient(135deg, var(--gray-a3), var(--gray-a2), var(--gray-a3)); }
.legacy-flashcard-stack { display: grid; gap: var(--space-4); width: min(760px, 100%); margin: 0 auto; }
.legacy-flashcard-card.flashcard { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); width: 100%; min-height: 0; margin: 0; perspective: none; }
.legacy-flashcard-word, .legacy-flashcard-definition { position: relative; min-height: 100px; padding: var(--space-4); border: var(--border-width) solid var(--line-strong); background: var(--gray-a2); }
.legacy-flashcard-word { display: grid; place-items: center; text-align: center; }
.legacy-flashcard-word h1 { margin: 0; font-size: var(--text-2xl); }
.legacy-flashcard-speak { position: absolute; top: var(--space-2); left: var(--space-2); color: var(--muted); }
.legacy-flashcard-definition { width: 100%; color: var(--gray-11); font: inherit; text-align: left; cursor: pointer; }
.flashcard-definition-copy { display: grid; gap: var(--space-2); filter: blur(3px); transition: filter .3s ease; }
.legacy-flashcard-definition:hover .flashcard-definition-copy, .legacy-flashcard-definition:focus-visible .flashcard-definition-copy, .flashcard.revealed .flashcard-definition-copy { filter: blur(0); }
.flashcard-definition-copy > span { line-height: 1.5; }
.flashcard-definition-copy small { color: var(--muted); font-style: italic; }
.legacy-flashcard-stats { display: grid; grid-template-columns: repeat(4, minmax(54px, .65fr)) minmax(180px, 1.8fr); align-items: center; gap: var(--space-3); min-height: 44px; padding: var(--space-2) var(--space-3); border: var(--border-width) solid var(--line-strong); background: var(--gray-a2); }
.legacy-flashcard-stat { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-1); min-width: 0; color: var(--muted); font-size: var(--text-xs); }
.legacy-flashcard-stat > .icon { width: var(--space-4); height: var(--space-4); }
.legacy-flashcard-stat strong { color: var(--ink); font-size: var(--text-sm); }
.legacy-flashcard-stat.score > .icon { color: var(--yellow-11); }
.legacy-flashcard-stat.actions > .icon { color: var(--accent); }
.legacy-flashcard-stat.streak > .icon { color: var(--orange-11); }
.legacy-flashcard-stat.pool > .icon { color: var(--violet-11); }
.legacy-flashcard-stat.reviewed { justify-content: flex-end; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.legacy-flashcard-stat.reviewed > .icon { flex: 0 0 auto; color: var(--green); }
.legacy-flashcard-actions { flex-wrap: nowrap; gap: var(--space-2); margin: 0; }
.legacy-flashcard-actions .button { min-height: var(--control-height); padding: var(--space-2) var(--space-3); font-size: var(--text-xs); white-space: nowrap; }
.legacy-flashcard-actions .primary-study-action { flex: 1 1 180px; }
.legacy-flashcard-actions .legacy-know:hover { border-color: var(--green-a8); background: var(--green-soft); color: var(--green); }
.legacy-flashcard-actions .legacy-unknown:hover { border-color: var(--red-a8); background: var(--danger-soft); color: var(--danger); }
.legacy-flashcard-actions .legacy-profile { border-color: var(--accent-a7); color: var(--accent-strong); }
.legacy-flashcard-actions .legacy-edit { border-color: var(--orange-a7); color: var(--orange-11); }
.legacy-flashcard-panel { padding: var(--space-3); border: var(--border-width) solid var(--line-strong); background: var(--gray-a2); }
.legacy-panel-heading { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-2); }
.legacy-panel-heading h2 { display: inline-flex; align-items: center; gap: var(--space-2); margin: 0; font-size: var(--text-sm); }
.legacy-panel-heading h2 > .icon { width: var(--space-4); height: var(--space-4); color: var(--accent); }
.legacy-panel-heading > span { color: var(--muted); font-size: var(--text-xs); }
.legacy-history-panel summary { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); cursor: pointer; font-size: var(--text-sm); }
.legacy-history-panel summary > span:first-child { display: inline-flex; align-items: center; gap: var(--space-2); font-weight: var(--font-weight-semibold); }
.legacy-history-panel summary .icon { width: var(--space-4); height: var(--space-4); color: var(--accent); }
.legacy-history-panel .action-history { margin-top: var(--space-2); border-top: var(--border-width) solid var(--line); }
.session-message { min-height: 24px; margin-bottom: 0; text-align: center; }
.study-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--grid-gap); margin: var(--space-5) 0; }
.study-stat { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: var(--space-1) var(--space-2); padding: var(--space-3); border: var(--border-width) solid var(--line); }
.study-stat > .icon { grid-row: 1 / 3; width: var(--space-5); height: var(--space-5); color: var(--accent); }
.study-stat span { color: var(--muted); font-size: var(--text-xs); }
.study-stat strong { font-size: var(--text-lg); }
.shortcut-strip { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.shortcut-strip span { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--muted); font-size: var(--text-xs); }
kbd { min-width: 32px; padding: var(--space-1) var(--space-2); border: var(--border-width) solid var(--line-strong); color: var(--ink); font-family: var(--font-mono); text-align: center; }
.action-history { display: grid; }
.action-row { display: flex; justify-content: space-between; gap: var(--space-3); padding: var(--space-2) 0; border-bottom: var(--border-width) solid var(--line); font-size: var(--text-xs); }
.action-row:last-child { border-bottom: 0; }
.action-row time { color: var(--muted); font-size: var(--text-xs); }
.legacy-flashcard-panel.active-settings { display: grid; gap: 0; margin: 0; padding: var(--space-3); }
.setting-chips { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.setting-chip { padding: var(--space-1) var(--space-2); border: var(--border-width) solid var(--line); background: var(--gray-a2); color: var(--muted); font-size: var(--text-xs); }
.setting-chip strong { color: var(--ink); }

.quiz-route .page-shell { width: min(960px, calc(100% - (2 * var(--page-gutter)))); min-height: calc(100vh - var(--site-header-height)); min-height: calc(100svh - var(--site-header-height)); padding: var(--quiz-page-padding-block); }
.quiz-route .site-footer { margin-top: 0; }
.quiz-workspace { width: min(900px, 100%); margin: auto; }
.quiz-workspace .breadcrumbs { margin-bottom: var(--space-6); }
.quiz-score { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.quiz-score span { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--muted); }
.quiz-session { display: grid; gap: var(--space-4); }
.quiz-question-card { position: relative; opacity: 1; transform: scale(1); transition: opacity .5s ease-out, transform .3s ease-out; will-change: opacity, transform; }
.quiz-card.quiz-question-card { gap: var(--quiz-card-gap); padding: var(--quiz-card-padding); }
.quiz-question-card.is-leaving { opacity: .3; pointer-events: none; }
.quiz-question-card.is-entering { animation: quiz-question-enter .6s ease-in both; }
.quiz-hint { position: absolute; top: var(--space-4); right: var(--space-4); z-index: 2; border: var(--border-width) solid var(--yellow-a5) !important; border-color: var(--yellow-a5) !important; background: var(--yellow-a3) !important; color: var(--yellow-11) !important; border-radius: var(--radius-3) !important; font-weight: 500; transition: all .15s ease; }
.quiz-hint:hover:not(:disabled) { border-color: var(--yellow-a8) !important; background: var(--yellow-a4) !important; color: var(--yellow-11) !important; }
.quiz-question-header { position: relative; display: grid; justify-items: center; gap: var(--space-1); margin-bottom: var(--space-2); padding: 0 var(--space-12) var(--space-2); text-align: center; }
.quiz-question-header .radix-word-speak, .quiz-question-header > .text-button { position: absolute; top: 0; left: 0; width: 32px; height: 32px; display: grid; place-items: center; border-radius: var(--radius-3); background: var(--gray-a3); color: var(--accent-11); transition: all .15s ease; }
.quiz-question-header .radix-word-speak:hover, .quiz-question-header > .text-button:hover { background: var(--accent-a3); color: var(--accent-11); }
.quiz-question-header > span, .quiz-question-header small { color: var(--gray-11); }
.quiz-question-header h2 { margin: var(--space-1) 0; font-size: var(--text-3xl); font-weight: 700; }
.quiz-question-header h2 a { color: var(--gray-12); text-decoration: none; transition: color .15s ease; }
.quiz-question-header h2 a:hover { color: var(--accent-11); }
.quiz-question-header .quiz-click-note { display: inline-flex; align-items: center; gap: var(--space-2); margin-top: var(--space-2); color: var(--accent-11); font-size: var(--text-xs); font-weight: 500; }
.quiz-choice-list, .quiz-choice-list > div { display: grid; gap: var(--space-2); }
.quiz-choice { position: relative; display: block; }
.quiz-choice > input { position: absolute; width: 1px; height: 1px; min-height: 0; opacity: 0; }
.quiz-choice-content { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); border: var(--border-width) solid var(--gray-a5); border-radius: var(--radius-3); background: var(--gray-a2); cursor: pointer; transition: transform .15s ease, border-color .15s ease, background-color .15s ease, box-shadow .15s ease; }
.quiz-choice:hover .quiz-choice-content, .quiz-choice > input:focus-visible + .quiz-choice-content { transform: translateY(-1px); border-color: var(--accent-a7); background: var(--gray-a3); }
.quiz-choice > input:checked + .quiz-choice-content { border-color: var(--accent-9); background: var(--accent-a3); }
.choice-index { display: grid; place-items: center; flex: 0 0 auto; width: 30px; height: 30px; border: var(--border-width) solid var(--gray-a6); border-radius: var(--radius-2); background: var(--gray-a3); color: var(--gray-12); font-weight: 600; font-size: var(--text-sm); transition: all .15s ease; }
.quiz-choice:hover .choice-index { border-color: var(--accent-a7); background: var(--accent-a3); color: var(--accent-11); }
.quiz-choice > input:checked + .quiz-choice-content .choice-index { border-color: var(--accent-9); background: var(--accent-9); color: var(--color-white); }
.choice-copy { padding-top: 0; color: var(--gray-12); font-size: var(--text-sm); line-height: var(--line-height-normal); }
.quiz-choice.is-hidden { display: none; }
.quiz-choice.is-selected .quiz-choice-content { animation: quiz-choice-press .1s ease-out; }
.quiz-choice.is-dimmed { opacity: .5; pointer-events: none; }
.quiz-choice-card {
  transition: transform .15s ease, border-color .15s ease, background-color .15s ease, box-shadow .15s ease !important;
}
.quiz-choice-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-a7) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.quiz-choice-card:active {
  transform: translateY(0);
}
.quiz-view-switcher {
  border-radius: var(--radius-3);
  padding: 2px;
  background: var(--gray-a3);
}
.quiz-instructions { padding: var(--space-4); border: var(--border-width) solid var(--gray-a5); border-radius: var(--radius-4); background: var(--color-panel-translucent); }
.quiz-instructions .panel-heading { align-items: center; margin-bottom: var(--space-3); }
.quiz-instructions .panel-heading h2 { display: inline-flex; align-items: center; gap: var(--space-2); margin: 0; color: var(--accent-11); font-size: var(--text-sm); font-weight: 600; }
.quiz-guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.quiz-guide-column { display: grid; gap: var(--space-2); }
.quiz-guide-item { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-2) var(--space-3); border: var(--border-width) solid var(--gray-a4); border-radius: var(--radius-3); background: var(--gray-a2); }
.quiz-guide-item > svg, .quiz-guide-item > .icon { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 2px; }
.quiz-guide-item h3 { margin-bottom: 2px; font-size: var(--text-xs); font-weight: 600; }
.quiz-guide-item p { margin-bottom: 0; color: var(--gray-11); font-size: var(--text-xs); }
.quiz-unavailable { justify-items: center; text-align: center; }
.quiz-unavailable .progress-track { width: min(480px, 100%); }
.quiz-unavailable .study-stats { width: min(560px, 100%); grid-template-columns: repeat(3, 1fr); }
.guest-progress-note { display: grid; justify-items: center; gap: var(--space-2); padding: var(--space-4); border: var(--border-width) solid var(--line); text-align: center; }
.guest-progress-note > .feature-icon { width: var(--space-10); height: var(--space-10); }
.guest-progress-note h2 { margin-bottom: 0; font-size: var(--text-lg); }
.guest-progress-note p { margin-bottom: var(--space-2); color: var(--muted); font-size: var(--text-sm); }
.guest-progress-actions { display: flex; gap: var(--space-3); }
.quiz-loading { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: 60px; color: var(--accent); font-size: var(--text-sm); }
.quiz-loading .icon { animation: quiz-loader-spin .8s linear infinite; }

@keyframes quiz-choice-press { 0%, 100% { transform: scale(1); } 50% { transform: scale(.98); } }
@keyframes quiz-question-enter { 0% { opacity: .3; transform: scale(.98); } 16.667% { transform: scale(.98); } 66.667% { transform: scale(1); } 100% { opacity: 1; transform: scale(1); } }
@keyframes quiz-loader-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .quiz-question-card, .quiz-choice-content { transition-duration: .01ms; }
  .quiz-question-card.is-entering, .quiz-choice.is-selected .quiz-choice-content, .quiz-loading .icon { animation-duration: .01ms; animation-iteration-count: 1; }
}

.auth-route .page-shell { width: min(1024px, calc(100% - (2 * var(--space-4)))); flex: 1; display: flex; flex-direction: column; justify-content: center; padding: var(--space-6) 0; }
.auth-route .site-footer { margin-top: auto; }
.auth-page { display: flex; flex-direction: column; align-items: center; background: var(--color-background); }
.auth-hero { position: relative; width: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; overflow: hidden; padding: var(--space-5) var(--space-6) var(--space-4); border-bottom: var(--border-width) solid var(--gray-a5); background: radial-gradient(circle at 50% 30%, var(--accent-a3), transparent 60%), var(--color-background); }
.auth-pattern { position: absolute; inset: 0; opacity: .45; pointer-events: none; }
.auth-pattern span { position: absolute; display: block; background: var(--accent-a3); filter: blur(48px); }
.auth-pattern span:nth-child(1) { top: 40px; left: 7%; width: 80px; height: 80px; }
.auth-pattern span:nth-child(2) { right: 7%; bottom: 40px; width: 96px; height: 96px; background: var(--violet-a3); }
.auth-pattern span:nth-child(3) { top: 50%; left: 50%; width: 128px; height: 128px; transform: translate(-50%,-50%); background: var(--green-a3); }
.auth-pattern span:nth-child(4) { top: 80px; right: 14%; width: 64px; height: 64px; background: var(--cyan-a3); }
.auth-pattern span:nth-child(5) { bottom: 80px; left: 14%; width: 112px; height: 112px; background: var(--pink-a3); }
.auth-back { position: absolute; top: var(--space-4); left: var(--space-4); z-index: 2; display: inline-flex; align-items: center; gap: var(--space-2); min-height: var(--control-height); padding: var(--control-padding); border: var(--border-width) solid var(--gray-a5); background: var(--color-panel-translucent); color: var(--gray-11); font-size: var(--text-sm); font-weight: var(--font-weight-medium); backdrop-filter: blur(16px); transition: .18s ease; }
.auth-back:hover { transform: translateY(-1px); border-color: var(--gray-a7); background: var(--gray-a3); color: var(--gray-12); }
.auth-hero-content { position: relative; z-index: 1; width: min(768px, 100%); text-align: center; }
.auth-hero-icon { width: 44px; height: 44px; display: grid; place-items: center; margin: 0 auto var(--space-3); border: var(--border-width) solid var(--gray-a6); background: var(--gray-a3); color: var(--gray-12); font-size: var(--text-xl); backdrop-filter: blur(20px); }
.auth-hero-content h1 { margin-bottom: var(--space-2); color: var(--gray-12); font-size: clamp(1.375rem, 2.5vw, 1.75rem); font-weight: var(--font-weight-regular); }
.auth-hero-content p { max-width: 576px; margin: 0 auto; color: var(--gray-11); font-size: var(--text-sm); }
.auth-form-section { width: 100%; display: flex; justify-content: center; padding: var(--space-5) var(--space-4) var(--space-5); background: var(--color-background); }
.auth-card { width: min(448px, 100%); margin: 0 auto; padding: var(--task-card-padding); border: var(--border-width) solid var(--gray-a6); background: var(--color-panel-translucent); backdrop-filter: blur(20px); }
.auth-form { display: grid; gap: var(--task-form-gap); }
.auth-field { display: grid; gap: var(--space-2); }
.auth-field > span { display: flex; align-items: center; gap: var(--space-2); color: var(--gray-12); font-size: var(--text-sm); font-weight: var(--font-weight-medium); }
.auth-field input { min-height: var(--control-height); padding: var(--control-padding); border-color: var(--gray-a6); background: var(--color-surface); font-size: var(--text-sm); backdrop-filter: blur(12px); transition: .18s ease; }
.auth-field input::placeholder { color: var(--muted); }
.auth-field input:focus { background: var(--color-surface); }
.auth-submit { width: 100%; min-height: var(--control-height); display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: var(--control-padding); border: var(--border-width) solid var(--gray-a6); background: var(--accent-9); color: var(--accent-contrast); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); backdrop-filter: blur(12px); transition: .18s ease; }
.auth-submit:hover { transform: translateY(-1px); border-color: var(--accent-8); background: var(--accent-10); box-shadow: var(--shadow-2); }
.login-submit { border-color: rgba(59,130,246,.5); color: var(--accent-strong); }
.login-submit:hover { border-color: var(--accent); background: var(--accent-a3); }
.auth-alternative { margin: var(--task-secondary-gap) 0 0; color: var(--muted); font-size: var(--text-sm); text-align: center; }
.auth-alternative a { color: var(--accent); }
.auth-alternative a:hover { color: var(--accent-strong); }

/* Radix Themes migration: authentication */
.radix-auth-page { display: flex; flex-direction: column; align-items: center; background: var(--color-background); border-radius: var(--radius-4); border: var(--border-width) solid var(--gray-a5); overflow: hidden; }
.radix-auth-hero { position: relative; width: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; overflow: hidden; padding: var(--space-5) var(--space-6) var(--space-4); border-bottom: var(--border-width) solid var(--gray-a5); background: radial-gradient(circle at 50% 30%, var(--accent-a3), transparent 60%), var(--color-background); }
.radix-auth-back { position: absolute !important; top: var(--space-4); left: var(--space-4); z-index: 2; }
.radix-auth-hero-content { position: relative; z-index: 1; width: min(768px, 100%); text-align: center; }
.radix-auth-hero-icon { width: 44px; height: 44px; display: grid; place-items: center; margin-bottom: var(--space-3); border: var(--border-width) solid var(--gray-a6); border-radius: var(--radius-3); background: var(--color-panel-translucent); color: var(--accent-11); box-shadow: var(--shadow-1); }
.radix-auth-hero h1 { margin-bottom: var(--space-2); line-height: 1.25; text-wrap: balance; font-size: var(--font-size-5); }
.radix-auth-hero p { text-wrap: balance; font-size: var(--font-size-2); }
.radix-auth-form-section { width: 100%; display: flex; justify-content: center; padding: var(--space-5) var(--space-4) var(--space-5); }
.radix-auth-card { width: min(448px, 100%); }
.radix-auth-form { display: grid; gap: clamp(var(--space-3), 1.25svh, var(--space-4)); }
.radix-auth-field { display: grid; gap: var(--space-2); }
.radix-auth-field .rt-TextFieldRoot { width: 100%; }
.radix-auth-submit { width: 100%; margin-top: var(--space-1); }
.radix-auth-alternative { margin-top: var(--space-5); }
.radix-auth-alternative a { color: var(--accent-11); font-weight: var(--font-weight-medium); }
.panel { padding: var(--panel-padding); }
.form-stack { display: grid; gap: var(--grid-gap); }
.form-stack label { display: grid; gap: var(--space-2); font-size: var(--text-sm); font-weight: var(--font-weight-bold); }
.form-note { margin: 0; color: var(--muted); text-align: center; }
.form-note a { color: var(--accent); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.check-label { display: flex !important; align-items: center; }
.check-label input { width: auto; }
.optional { color: var(--gray-11); font-weight: var(--font-weight-regular); }
.flash, .radix-flash-callout { margin-bottom: var(--space-5); border-radius: var(--radius-3); }
.radix-toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: var(--space-2); max-width: 420px; width: calc(100vw - 48px); pointer-events: none; }
.radix-toast-item { pointer-events: auto; animation: slideInRight 220ms cubic-bezier(0.16, 1, 0.3, 1); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12); border-radius: var(--radius-3); }
@keyframes slideInRight { from { opacity: 0; transform: translateX(100%) scale(0.95); } to { opacity: 1; transform: translateX(0) scale(1); } }
.narrow-page { width: min(720px, 100%); margin: auto; }
.quiz-card { display: grid; gap: var(--space-5); padding: clamp(var(--space-6), 5vw, var(--space-12)); }
.quiz-card.result { justify-items: center; text-align: center; }
.result-mark { display: grid; place-items: center; width: 65px; height: 65px; border: var(--border-width) solid var(--green-a7); background: var(--green-soft); color: var(--green); font-size: 1.8rem; }
.quiz-card.incorrect .result-mark { border-color: var(--red-a7); background: var(--danger-soft); color: var(--danger); }
.split-layout { display: grid; grid-template-columns: 350px 1fr; gap: var(--space-7); align-items: start; }
.sticky-panel { position: sticky; top: 88px; }
.timeline { display: grid; gap: var(--space-3); }
.timeline-item { padding: var(--panel-padding-compact); }
.timeline-item time { color: var(--muted); font-size: .76rem; }
.timeline-item p { margin: 9px 0; white-space: pre-wrap; }
.text-button { padding: var(--space-1); border: 0; background: transparent; color: var(--accent); font-weight: var(--font-weight-bold); }
.text-button.danger { color: var(--danger); }
.list-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap); }
.list-card h2 { margin: 16px 0 7px; }
.profile-header { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--space-5); margin-bottom: var(--space-6); padding: var(--panel-padding); }
.profile-header h1 { margin: 0; font-size: 2.3rem; }
.profile-header p { margin: 5px 0 0; color: var(--muted); }
.avatar { display: grid; place-items: center; width: 75px; height: 75px; border: var(--border-width) solid var(--accent-a7); background: var(--accent-soft); color: var(--accent-strong); font-size: 1.8rem; font-weight: var(--font-weight-black); }
.profile-bio { margin-bottom: var(--space-5); padding: var(--panel-padding); }
.profile-page { border-top: var(--border-width) solid var(--line); }
.profile-page > .breadcrumbs { margin-top: calc(-1 * var(--space-10)); }
.profile-identity { min-height: 180px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--space-6); padding: var(--space-8); border-bottom: var(--border-width) solid var(--line); }
.profile-identity h1 { margin: 0; font-size: clamp(var(--text-2xl), 4vw, 3rem); }
.profile-identity p { margin: var(--space-2) 0 0; color: var(--muted); }
.profile-identity-copy { min-width: 0; }
.profile-actions { align-self: center; margin-top: 0; }
.profile-meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); margin-top: var(--space-3); color: var(--muted); font-size: var(--text-xs); }
.profile-meta > span, .profile-meta > a { display: inline-flex; align-items: center; gap: var(--space-2); }
.profile-role { padding: var(--space-1) var(--space-2); border: var(--border-width) solid var(--yellow-a6); color: var(--yellow-11); }
.profile-stat-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-bottom: var(--border-width) solid var(--line); }
.profile-stat-strip-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.profile-stat { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--space-3); padding: var(--space-5) var(--space-4); border-right: var(--border-width) solid var(--line); }
.profile-stat:last-child { border-right: 0; }
.profile-stat-icon { display: grid; place-items: center; color: var(--muted); }
.profile-stat-icon .icon { width: var(--space-5); height: var(--space-5); }
.profile-stat strong, .profile-stat small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-stat strong { font-size: var(--text-sm); }
.profile-stat small { color: var(--muted); font-size: var(--text-2xs); }
.profile-stat b { font-size: var(--text-xl); }
.profile-stat .accent { color: var(--accent); }
.profile-stat .warning { color: var(--orange-11); }
.profile-stat .purple { color: var(--purple); }
.profile-details-section { padding-top: var(--space-8); }
.profile-page .content-section { grid-template-columns: 1fr; gap: var(--space-4); }
.profile-page .content-section .section-number { display: none; }
.profile-page .content-section > div { min-width: 0; }
.profile-details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); }
.profile-details-grid > div + div { padding-left: var(--space-8); border-left: var(--border-width) solid var(--line); }
.profile-details-grid h3 { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-4); font-size: var(--text-sm); }
.profile-detail-list { margin: 0; }
.profile-detail-list > div { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-2) 0; border-bottom: var(--border-width) solid var(--gray-a3); }
.profile-detail-list dt { color: var(--muted); }
.profile-detail-list dd { margin: 0; text-align: right; }
.profile-about { margin-top: var(--space-7); padding-top: var(--space-6); border-top: var(--border-width) solid var(--line); }
.profile-about p { color: var(--gray-11); }
.profile-action-table { border: 0; }
.profile-action-table th:first-child, .profile-action-table td:first-child { padding-left: 0; }
.profile-action-table th:last-child, .profile-action-table td:last-child { padding-right: 0; }
.profile-empty { min-height: 150px; display: grid; place-content: center; justify-items: center; gap: var(--space-2); color: var(--muted); text-align: center; }
.profile-empty > .icon { width: var(--space-6); height: var(--space-6); }
.profile-empty strong { color: var(--gray-11); }
.profile-empty span { font-size: var(--text-sm); }
.profile-private { min-height: 320px; border-bottom: var(--border-width) solid var(--line); }
.profile-section-heading { padding: var(--space-8) 0; border-bottom: var(--border-width) solid var(--line); }
.profile-section-heading h1 { margin-bottom: var(--space-2); }
.profile-section-heading p { margin: 0; color: var(--muted); }
.profile-progress-heading { display: flex; align-items: center; justify-content: space-between; }
.profile-progress-heading h2 { margin: 0; }
.profile-progress-heading strong { color: var(--green); font-size: var(--text-xl); }
.date-metric { font-size: 1rem !important; letter-spacing: 0; }
.monthly-list { padding: var(--panel-padding); }
.monthly-list > div { display: flex; justify-content: space-between; padding: var(--space-3) 0; border-bottom: var(--border-width) solid var(--line); }
.inline-editor { min-width: 90px; }
.inline-editor summary { color: var(--accent); font-weight: var(--font-weight-bold); }
.inline-editor form { min-width: min(420px, 70vw); margin-top: var(--space-3); padding: var(--space-3); border: var(--border-width) solid var(--line); background: var(--surface-overlay); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: var(--space-3) var(--space-4); border-bottom: var(--border-width) solid var(--line); text-align: left; vertical-align: middle; }
th { color: var(--gray-11); font-size: .68rem; letter-spacing: .09em; text-transform: uppercase; }
tbody tr:hover { background: var(--gray-a2); }
td small { display: block; max-width: 480px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status { display: inline-flex; padding: var(--space-1) var(--space-2); border: var(--border-width) solid var(--line); color: var(--muted); font-size: var(--text-2xs); }
.status.learned { color: var(--green); border-color: rgba(74,222,128,.35); background: var(--green-soft); }
.status.unknown { color: var(--yellow-11); border-color: var(--yellow-a6); background: var(--yellow-a3); }
.status.viewed { color: var(--accent); border-color: rgba(96,165,250,.35); background: var(--accent-soft); }
.user-cell { display: flex; align-items: center; gap: 8px; }
.user-cell small { color: var(--yellow-11); }
.row-actions { display: flex; gap: 9px; }
.admin-add { margin-bottom: 20px; }
.admin-add[open] summary { margin-bottom: 18px; }
.empty-state { padding: var(--space-12) var(--space-6); border: var(--border-width) dashed var(--line-strong); color: var(--muted); text-align: center; }
.error-page { min-height: 520px; display: grid; place-content: center; justify-items: center; text-align: center; }
.error-page > span { color: var(--accent); font-size: 5rem; font-weight: var(--font-weight-black); }
.settings-layout { display: grid; grid-template-columns: 220px 1fr; gap: var(--section-gap); align-items: start; }
.settings-nav { position: sticky; top: 88px; display: grid; gap: var(--space-1); padding: var(--space-3); }
.settings-nav a { display: flex; align-items: center; gap: var(--space-3); padding: var(--control-padding); color: var(--muted); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.settings-nav a:hover { color: var(--accent-strong); background: var(--accent-soft); }
.settings-content { display: grid; gap: var(--section-gap); }
.settings-section { display: grid; gap: var(--grid-gap); scroll-margin-top: 88px; }
.settings-section > label:not(.checkbox-row) { display: grid; gap: var(--space-2); font-size: var(--text-sm); font-weight: var(--font-weight-bold); }
.settings-heading { display: flex; align-items: center; gap: var(--space-3); padding-bottom: var(--space-4); border-bottom: var(--border-width) solid var(--line); }
.settings-heading > .icon { width: 24px; height: 24px; color: var(--accent); }
.settings-heading h2, .settings-heading p { margin-bottom: 0; }
.settings-heading p { color: var(--muted); font-size: var(--text-sm); }
.checkbox-row { display: flex !important; grid-template-columns: none !important; align-items: center; justify-content: space-between; gap: var(--space-5); padding: var(--space-3); border: var(--border-width) solid var(--line); background: var(--gray-a2); }
.checkbox-row input { width: 18px; min-height: 18px; }
.setting-copy { display: grid; gap: var(--space-1); }
.setting-copy small { color: var(--muted); font-weight: var(--font-weight-regular); }
.settings-actions { display: flex; justify-content: flex-end; }
.docs-hero { align-items: flex-start; }
.docs-index { position: sticky; top: 76px; z-index: 20; display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-8); padding: var(--space-3); background: var(--surface-overlay); }
.docs-index a { padding: var(--control-padding); color: var(--muted); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.docs-index a:hover { color: var(--accent-strong); background: var(--accent-soft); }
.docs-layout { display: grid; grid-template-columns: 220px 1fr; gap: var(--section-gap); align-items: start; }
.docs-sidebar { position: sticky; top: 152px; display: grid; gap: var(--space-2); color: var(--muted); }
.docs-sidebar strong { color: var(--ink); }
.docs-sidebar p { font-size: var(--text-xs); }
.docs-content { display: grid; gap: var(--section-gap); }
.docs-section { scroll-margin-top: 152px; }
.docs-section > p { max-width: 760px; color: var(--muted); }
.rule-grid, .swatch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--grid-gap); }
.rule-grid article { padding: var(--panel-padding-compact); border: var(--border-width) solid var(--line); background: var(--surface-structural); }
.rule-grid article > .icon { width: 24px; height: 24px; margin-bottom: var(--space-6); color: var(--accent); }
.rule-grid article p { margin-bottom: 0; color: var(--muted); }
.type-specimen { display: grid; gap: var(--space-4); margin-top: var(--space-6); padding-top: var(--space-6); border-top: var(--border-width) solid var(--line); }
.type-display { font-size: var(--text-2xl); font-weight: var(--font-weight-bold); }
.type-body { color: var(--muted); }
code { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--accent-strong); }
.spacing-scale { display: flex; flex-wrap: wrap; align-items: end; gap: var(--space-4); margin: var(--space-6) 0; }
.spacing-scale > div { display: grid; justify-items: center; gap: var(--space-2); }
.spacing-scale span { min-width: var(--space-1); min-height: var(--space-1); background: var(--accent); }
.space-sample-4 { width: 4px; height: 4px; }
.space-sample-8 { width: 8px; height: 8px; }
.space-sample-12 { width: 12px; height: 12px; }
.space-sample-16 { width: 16px; height: 16px; }
.space-sample-20 { width: 20px; height: 20px; }
.space-sample-24 { width: 24px; height: 24px; }
.space-sample-32 { width: 32px; height: 32px; }
.space-sample-40 { width: 40px; height: 40px; }
.space-sample-48 { width: 48px; height: 48px; }
.space-sample-64 { width: 64px; height: 64px; }
.space-sample-72 { width: 72px; height: 72px; }
.docs-table { display: grid; grid-template-columns: repeat(2, 1fr); border-top: var(--border-width) solid var(--line); }
.docs-table > div { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-3); border-bottom: var(--border-width) solid var(--line); }
.swatch-grid > div { display: grid; gap: var(--space-2); }
.swatch-grid span { height: 72px; border: var(--border-width) solid var(--line-strong); }
.swatch-paper { background: var(--paper); }
.swatch-ink { background: var(--ink); }
.swatch-accent { background: var(--accent); }
.swatch-green { background: var(--green); }
.swatch-danger { background: var(--danger); }
.component-showcase, .icon-specimens { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.icon-specimens span { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--control-padding); border: var(--border-width) solid var(--line); color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (min-width: 901px) {
  .nav-dropdown:hover > .dropdown-menu { display: block; }
  .dropdown-menu::before { content: ""; position: absolute; right: 0; bottom: 100%; left: 0; height: var(--space-5); }
}

@media (min-width: 901px) and (min-height: 540px) {
  .radix-dropdown-content { max-height: none; }
  .dropdown-menu.rt-BaseMenuContent .rt-ScrollAreaViewport { overflow: visible !important; }
  .dropdown-menu.rt-BaseMenuContent .rt-ScrollAreaScrollbar { display: none; }
}

@media (min-width: 901px) and (max-width: 1100px) {
  .nav-left, .site-nav { gap: var(--space-2); }
  .nav-search-wrap { width: min(260px, 26vw); }
}

@media (min-width: 601px) and (max-height: 800px) {
  .quiz-route .page-shell { padding-top: var(--space-3); }
}

@media (max-width: 1050px) {
  .username { display: none; }
  .nav-search-wrap { width: 250px; }
  .stats-grid.four { grid-template-columns: repeat(2, 1fr); }
  .profile-stat-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .profile-stat:nth-child(3) { border-right: 0; }
  .profile-stat:nth-child(n + 4) { border-top: var(--border-width) solid var(--line); }
  .profile-stat-strip-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .profile-stat-strip-four .profile-stat:nth-child(odd) { border-right: var(--border-width) solid var(--line); }
  .profile-stat-strip-four .profile-stat:nth-child(even) { border-right: 0; }
  .profile-stat-strip-four .profile-stat:nth-child(n + 3) { border-top: var(--border-width) solid var(--line); }
}

@media (max-width: 900px) {
  .nav-left { flex: 0 0 auto; }
  .nav-toggle { display: grid; margin-left: auto; }
  .nav-search-wrap { position: relative; left: auto; flex: 1; width: auto; max-width: 360px; transform: none; }
  .site-nav { display: none; position: absolute; top: var(--space-16); left: 0; right: 0; align-items: stretch; padding: var(--space-3); border: var(--border-width) solid var(--line); background: var(--surface-overlay); box-shadow: var(--shadow); }
  .site-nav.open { display: flex; flex-direction: column; }
  .site-nav > .nav-link, .site-nav > .button, .site-nav > .nav-icon, .site-nav > .nav-dropdown > .nav-dropdown-control { width: 100%; justify-content: flex-start; }
  .site-nav > .nav-dropdown > .nav-dropdown-control .nav-dropdown-primary { flex: 1; }
  .site-nav .dropdown-menu { position: static; margin-top: var(--space-1); box-shadow: none; }
  .nav-left .nav-dropdown, .nav-left > .nav-link, .desktop-language-switcher { display: none; }
  .auth-nav-group { width: 100%; }
  .auth-nav-link { flex: 1; justify-content: center; }
  .mobile-nav-links { order: -1; display: grid; gap: var(--space-1); padding-bottom: var(--space-2); border-bottom: var(--border-width) solid var(--line); }
  .mobile-nav-links > a { display: flex; align-items: center; gap: var(--space-2); min-height: var(--control-height); padding: var(--control-padding); color: var(--gray-11); font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
  .mobile-nav-links > a:hover { color: var(--accent-strong); background: var(--accent-soft); }
  .nav-drawer-overlay { position: fixed; inset: 0; z-index: 90; display: block; background: var(--color-overlay); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
  .nav-drawer-content { position: fixed; top: 0; right: 0; bottom: 0; z-index: 100; width: min(360px, calc(100% - var(--space-4))); display: flex; flex-direction: column; border-left: var(--border-width) solid var(--gray-a6); border-radius: var(--radius-4) 0 0 var(--radius-4); outline: 0; background: var(--color-panel-solid); box-shadow: var(--shadow-6); }
  .nav-drawer-heading { min-height: var(--space-16); display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: 0 var(--space-4); border-bottom: var(--border-width) solid var(--line); }
  .nav-drawer-heading h2 { margin: 0; font-size: var(--text-md); }
  .nav-drawer-heading button { width: var(--space-8); height: var(--space-8); display: grid; place-items: center; padding: 0; border: var(--border-width) solid var(--line-strong); background: transparent; color: var(--muted); }
  .nav-drawer-heading button:hover { color: var(--ink); background: var(--gray-a3); }
  .nav-drawer-body { min-height: 0; display: flex; flex: 1; flex-direction: column; gap: var(--space-4); overflow-y: auto; padding: var(--space-4); }
  .nav-drawer-preferences { display: grid; gap: var(--space-2); }
  .nav-drawer-preferences .language-menu-trigger { width: 100%; }
  .theme-toggle-labelled { width: 100%; }
  .nav-drawer-body nav { display: grid; gap: var(--space-1); }
  .nav-drawer-body .menu-label { margin-top: var(--space-3); }
  .nav-drawer-body .menu-label:first-child { margin-top: 0; }
  .nav-drawer-link { width: 100%; min-height: var(--control-height); display: flex; align-items: center; gap: var(--space-2); padding: var(--control-padding); border: 0; border-radius: var(--radius-2); background: transparent; color: var(--gray-12); text-align: left; font-size: var(--text-sm); font-weight: var(--font-weight-medium); }
  .nav-drawer-link:hover, .nav-drawer-link.active { background: var(--accent-a3); color: var(--accent-11); }
  .nav-drawer-body form { margin: 0; }
  .dashboard-grid, .mode-grid, .split-layout, .settings-layout, .docs-layout, .legacy-dashboard-grid { grid-template-columns: 1fr; }
  .sticky-panel { position: static; }
  .settings-nav, .docs-sidebar { position: static; }
  .word-grid { grid-template-columns: 1fr 1fr; }
  .word-row { grid-template-columns: 1fr; gap: var(--space-2); }
  .word-hero { flex-direction: column; }
  .profile-identity { grid-template-columns: auto minmax(0, 1fr); }
  .profile-identity > .profile-actions { grid-column: 1 / -1; }
  .profile-details-grid { grid-template-columns: 1fr; }
  .profile-details-grid > div + div { padding-top: var(--space-6); padding-left: 0; border-top: var(--border-width) solid var(--line); border-left: 0; }
  .search-primary-row { grid-template-columns: 1fr auto; }
  .search-primary-row > .button.secondary { grid-column: 1 / -1; justify-self: start; }
  .search-results .table-wrap { overflow-x: auto; }
  .search-results-table:not(.guest) { min-width: 760px; }
  .search-results-table.guest { min-width: 620px; }
  .radix-search-primary { align-items: stretch; flex-wrap: wrap; }
  .radix-search-primary .rt-TextFieldRoot { flex-basis: calc(100% - 190px); }
  .radix-search-primary > .rt-Button:last-child { flex-basis: 100%; }
  .radix-search-table:not(.guest) .rt-TableRootTable { min-width: 760px; }
  .radix-search-table.guest .rt-TableRootTable { min-width: 620px; }
  .radix-words-table:not(.guest) .rt-TableRootTable { min-width: 900px; }
  .radix-words-table.guest .rt-TableRootTable { min-width: 680px; }
  .radix-flashcard-actions { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .radix-flashcard-actions > :nth-child(1), .radix-flashcard-actions > :nth-child(2) { grid-column: span 3; }
  .radix-flashcard-actions > :nth-child(n + 3) { grid-column: span 2; }
  .radix-word-two-column, .legacy-word-profile .radix-word-two-column { grid-template-columns: 1fr; }
}

@keyframes nav-overlay-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes nav-overlay-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes nav-drawer-in {
  from { opacity: .6; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes nav-drawer-out {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: .6; transform: translateX(16px); }
}

.nav-drawer-overlay[data-state="open"] { animation: nav-overlay-in .18s ease-out; }
.nav-drawer-overlay[data-state="closed"] { animation: nav-overlay-out .14s ease-in; }
.nav-drawer-content[data-state="open"] { animation: nav-drawer-in .2s ease-out; }
.nav-drawer-content[data-state="closed"] { animation: nav-drawer-out .16s ease-in; }

@media (prefers-reduced-motion: reduce) {
  .radix-dropdown-content, .radix-search-popover, .nav-drawer-overlay, .nav-drawer-content { animation: none; }
}

@media (max-width: 600px) {
  .page-shell { width: min(100% - (2 * var(--space-3)), 1180px); padding-top: var(--space-7); }
  .nav-shell { width: min(100% - (2 * var(--space-3)), 1280px); gap: var(--space-2); }
  .nav-search-wrap { max-width: none; }
  .auth-hero { min-height: clamp(240px, 34svh, 280px); padding: var(--space-16) var(--space-5) var(--space-7); }
  .auth-back { top: var(--space-4); left: var(--space-4); }
  .auth-form-section { padding-right: var(--space-4); padding-left: var(--space-4); }
  .dashboard-hero { min-height: 300px; padding: var(--space-10) var(--space-5); }
  .guest-hero h1 { font-size: 2.5rem; }
  .word-grid, .list-grid, .stats-grid, .stats-grid.four, .form-grid, .vocab-groups, .rule-grid, .swatch-grid, .docs-table, .legacy-feature-grid, .legacy-platform-stats > div, .member-footer-grid, .guest-footer-grid { grid-template-columns: 1fr; }
  .search-bar { grid-template-columns: 1fr; }
  .page-heading, .section-heading, .panel-heading { align-items: flex-start; flex-direction: column; }
  .content-section { grid-template-columns: 1fr; }
  .section-number { display: none; }
  .flashcard-route .page-shell { width: min(100% - (2 * var(--space-3)), 1024px); padding-top: var(--space-5); }
  .radix-flashcard-topline { align-items: stretch; flex-direction: column; }
  .radix-flashcard-filter { width: 100%; }
  .radix-flashcard-card { grid-template-columns: 1fr; }
  .radix-flashcard-word, .radix-flashcard-definition { min-height: 120px; }
  .radix-flashcard-metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .radix-flashcard-metric { border-bottom: var(--border-width) solid var(--gray-a5); }
  .radix-flashcard-metric:nth-child(2), .radix-flashcard-metric:nth-child(4) { border-right: 0; }
  .radix-flashcard-metric.reviewed { grid-column: 1 / -1; justify-content: center; border-right: 0; border-bottom: 0; }
  .radix-flashcard-actions, .radix-flashcard-actions.guest { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .radix-flashcard-actions > *, .radix-flashcard-actions > :nth-child(n), .radix-flashcard-actions.guest > * { grid-column: span 1; }
  .radix-flashcard-actions > :last-child:nth-child(odd), .radix-flashcard-actions.guest > :last-child:nth-child(odd) { grid-column: 1 / -1; }
  .radix-shortcut-strip { gap: var(--space-3); }
  .flashcard-topline { align-items: flex-start; flex-direction: column; }
  .legacy-flashcard-filter, .legacy-flashcard-filter select { width: 100%; }
  .legacy-flashcard-stage { padding: var(--space-5) var(--space-3); }
  .legacy-flashcard-card.flashcard { grid-template-columns: 1fr; min-height: 0; }
  .legacy-flashcard-word, .legacy-flashcard-definition { min-height: 112px; }
  .legacy-flashcard-stats { grid-template-columns: repeat(4, 1fr); }
  .legacy-flashcard-stat.reviewed { grid-column: 1 / -1; justify-content: center; padding-top: var(--space-2); border-top: var(--border-width) solid var(--line); }
  .legacy-flashcard-actions { flex-wrap: wrap; }
  .legacy-flashcard-actions .primary-study-action { flex: 1 1 calc(50% - var(--space-2)); }
  .legacy-panel-heading { align-items: flex-start; }
  .tip-grid, .quiz-guide-grid { grid-template-columns: 1fr; }
  .study-stats { grid-template-columns: repeat(2, 1fr); }
  .active-settings, .mode-card-footer { align-items: flex-start; flex-direction: column; }
  .mode-card-footer .button { width: 100%; }
  .quiz-route .page-shell { width: min(100% - (2 * var(--space-3)), 960px); padding: var(--space-5) 0 var(--space-12); }
  .quiz-workspace .breadcrumbs { margin-bottom: var(--space-4); }
  .quiz-card.quiz-question-card { padding: var(--space-4); }
  .quiz-question-header { padding: var(--space-10) var(--space-4) var(--space-2); }
  .quiz-hint { top: var(--space-3); right: var(--space-3); }
  .quiz-unavailable .study-stats { grid-template-columns: 1fr; }
  .profile-header { grid-template-columns: auto 1fr; }
  .profile-header > :last-child { grid-column: 1 / -1; }
  .profile-page > .breadcrumbs { margin-top: calc(-1 * var(--space-7)); }
  .profile-identity { min-height: 0; grid-template-columns: 1fr; padding: var(--space-6) 0; }
  .profile-identity .avatar { width: var(--space-16); height: var(--space-16); }
  .profile-identity > .profile-actions { grid-column: auto; }
  .profile-actions .button { flex: 1; }
  .profile-stat-strip, .profile-stat-strip-four { grid-template-columns: 1fr 1fr; }
  .profile-stat, .profile-stat:nth-child(3) { border-right: var(--border-width) solid var(--line); }
  .profile-stat:nth-child(even) { border-right: 0; }
  .profile-stat:nth-child(n + 3) { border-top: var(--border-width) solid var(--line); }
  .profile-stat:last-child:nth-child(odd) { grid-column: 1 / -1; border-right: 0; }
  .profile-stat { padding: var(--space-4) var(--space-3); }
  .profile-stat b { font-size: var(--text-lg); }
  .profile-details-section { padding-top: var(--space-6); }
  .profile-action-table { overflow-x: auto; }
  .profile-action-table table { min-width: 680px; }
  .words-route .page-shell, .search-route .page-shell { width: min(100% - (2 * var(--space-3)), 1180px); }
  .legacy-words-page .breadcrumbs { margin-bottom: var(--space-4); }
  .legacy-words-heading { padding: var(--space-3); }
  .legacy-word-statuses, .legacy-word-types { gap: var(--space-1); margin-bottom: var(--space-3); }
  .legacy-filter-button, .legacy-type-filter { padding-right: var(--space-2); padding-left: var(--space-2); }
  .legacy-words-pagination, .search-pagination { align-items: flex-start; flex-direction: column; }
  .legacy-words-pagination nav, .search-pagination nav { max-width: 100%; overflow-x: auto; }
  .radix-pagination { align-items: flex-start; flex-direction: column; }
  .radix-pagination nav { max-width: 100%; overflow-x: auto; }
  .radix-word-statuses, .radix-word-types { gap: var(--space-1); }
  .radix-search-primary, .radix-search-options { align-items: stretch; flex-direction: column; }
  .radix-search-primary .rt-TextFieldRoot { flex-basis: auto; width: 100%; }
  .radix-search-primary > .rt-Button { width: 100%; }
  .radix-search-options > label, .radix-search-options > .rt-Button { width: 100%; }
  .word-detail-route .page-shell { width: min(100% - (2 * var(--space-3)), 960px); padding-top: var(--space-5); }
  .radix-word-profile { gap: var(--space-3); }
  .radix-word-hero { min-height: 132px; }
  .radix-word-hero h1 { font-size: var(--font-size-7); }
  .radix-relation-grid, .legacy-word-profile .radix-relation-grid { grid-template-columns: 1fr; }
  .radix-word-metric-grid, .legacy-word-profile .radix-word-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .radix-word-metadata > .rt-Flex, .legacy-word-profile .radix-word-metadata { align-items: stretch; flex-direction: column; }
  .radix-word-actions { align-items: stretch; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
  .radix-word-actions form, .radix-word-actions .rt-Button, .radix-word-actions .button { width: 100%; }
  .radix-word-quick-actions .rt-Grid, .legacy-quick-actions { grid-template-columns: 1fr !important; }
  .radix-word-action-row { align-items: flex-start; }
  .radix-word-action-row time { max-width: 42%; }
  .search-hero, .search-refine { padding: var(--space-3); }
  .search-hero-icon { width: var(--space-10); height: var(--space-10); }
  .search-hero h1 { font-size: var(--text-md); }
  .search-primary-row, .search-options, .search-options.guest { grid-template-columns: 1fr; }
  .search-primary-row > .button.secondary { grid-column: auto; justify-self: stretch; }
  .search-primary-row .button, .search-apply { width: 100%; }
  .search-empty { padding: var(--space-8) var(--space-4); }
  .search-empty > div { align-items: flex-start; flex-direction: column; }
  .legacy-hero-content { padding: var(--space-8) var(--space-4); }
  .legacy-features, .legacy-platform-stats, .legacy-cta, .legacy-dashboard-content { padding-left: var(--space-4); padding-right: var(--space-4); }
  .radix-home-hero-content { padding: var(--space-8) var(--space-4); }
  .radix-home-section, .radix-dashboard-content { padding-left: var(--space-4); padding-right: var(--space-4); }
  .radix-row-detail { display: none; }
  .radix-auth-hero { padding: var(--space-10) var(--space-4) var(--space-5); }
  .radix-auth-back { top: var(--space-3); left: var(--space-3); }
  .radix-auth-form-section { padding-right: var(--space-4); padding-left: var(--space-4); }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}