:root {
  color-scheme: light;
  --bg: #f3f4f7;
  --surface: #ffffff;
  --surface-2: #f8f9fa;
  --ink: #1c1c1c;
  --ink-2: #44454a;
  --muted: #6c6c6d;
  --line: #e2e2e2;
  --line-strong: #cccdd1;
  --brand: #ee4c2c;
  --brand-text: #b9341c;
  --button-bg: #c23b22;
  --button-hover: #a9311c;
  --button-ink: #ffffff;
  --brand-press: #d63d1f;
  --brand-soft: #fdede8;
  --brand-line: #f6c6b8;
  --info: #1a5fd0;
  --info-soft: #e8f0fe;
  --info-line: #bcd3f7;
  --good: #08704f;
  --good-soft: #e3f4ee;
  --good-line: #b6e0d0;
  --warn: #9a5b21;
  --header-bg: #262626;
  --header-ink: #ffffff;
  --header-muted: #b4b4b6;
  --header-line: #3a3a3a;
  --header-field: #333334;
  --radius: 10px;
  --radius-sm: 7px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(26, 26, 26, 0.06);
  --shadow-md: 0 6px 20px rgba(26, 26, 26, 0.1);
  --maxw: 1280px;
  --reading-width: 1080px;
  --control-height: 42px;
  --control-font-size: 14px;
  --font-sans: "Pretendard Variable", Pretendard, FreightSans, -apple-system,
    "Apple SD Gothic Neo", "Malgun Gothic", "Nanum Gothic", system-ui, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo,
    Monaco, Consolas, "Liberation Mono", monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #161719;
  --surface: #1f2023;
  --surface-2: #26282c;
  --ink: #f1f1f2;
  --ink-2: #c9cacf;
  --muted: #9a9ba0;
  --line: #343639;
  --line-strong: #45474c;
  --brand: #ff6242;
  --brand-text: #ff947c;
  --button-bg: #ff795c;
  --button-hover: #ff967f;
  --button-ink: #161719;
  --brand-press: #ff7a5f;
  --brand-soft: #33211c;
  --brand-line: #5a3025;
  --info: #6aa6ff;
  --info-soft: #1c2740;
  --info-line: #2f456e;
  --good: #4cc7a0;
  --good-soft: #16302a;
  --good-line: #275048;
  --warn: #d8a05a;
  --header-bg: #0f1011;
  --header-ink: #f4f4f5;
  --header-muted: #9a9ba0;
  --header-line: #2a2b2e;
  --header-field: #25262a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 26px rgba(0, 0, 0, 0.5);
}

/* Default theme is light; dark applies only when explicitly chosen
   (:root[data-theme="dark"]). OS prefers-color-scheme no longer auto-darkens. */

* {
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.app-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-line);
}

.topbar-inner {
  display: grid;
  grid-template-columns: auto auto minmax(170px, 1fr) auto;
  grid-template-areas: "brand primary search account";
  gap: 16px;
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 11px 22px;
}

.brand {
  grid-area: brand;
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  color: var(--header-ink);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
}

.brand span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search {
  grid-area: search;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  max-width: 520px;
  width: 100%;
}

input,
select,
textarea,
button {
  font: inherit;
}

.search input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--header-line);
  border-radius: var(--radius-sm);
  background: var(--header-field);
  color: var(--header-ink);
  padding: 9px 12px;
}

.search input::placeholder {
  color: var(--header-muted);
}

.search input:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
  border-color: transparent;
}

/* Search forms inside page content (e.g. the 404 page) use body colors, not the dark header field. */
.paper-card .search input {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
}

.paper-card .search input::placeholder {
  color: var(--muted);
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  gap: 2px;
  justify-content: flex-end;
}

.account-controls { grid-area: account; }
.primary-nav {
  grid-area: primary;
  display: flex;
  align-items: center;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}

.primary-nav a,
.nav a,
.nav summary,
.nav .theme-toggle {
  border-radius: var(--radius-sm);
  color: var(--header-muted);
  padding: 7px 10px;
  white-space: nowrap;
  font-size: 14px;
  transition: color 0.15s ease, background 0.15s ease;
}

.primary-nav a:hover,
.nav a:hover,
.nav summary:hover,
.nav .theme-toggle:hover {
  color: var(--header-ink);
  background: rgba(255, 255, 255, 0.06);
}

.primary-nav a[aria-current="page"],
.nav a[aria-current="page"],
.nav summary[aria-current="page"] {
  color: var(--header-ink);
  box-shadow: inset 0 -2px 0 var(--brand);
  border-radius: 0;
}

.account-menu summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
}

.account-menu summary::-webkit-details-marker {
  display: none;
}

.account-menu summary::after {
  content: "";
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}

.account-menu[open] summary::after {
  transform: translateY(2px) rotate(225deg);
}

.account-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 30;
  display: grid;
  min-width: 150px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  padding: 6px;
}

.account-dropdown a {
  color: var(--ink-2);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font-size: 13px;
}

.account-dropdown a:hover,
.account-dropdown a[aria-current="page"] {
  color: var(--brand-text);
  background: var(--brand-soft);
  box-shadow: none;
}

.account-logout {
  display: grid;
  margin: 0;
}

.account-logout button {
  border: 0;
  background: transparent;
  color: var(--ink-2);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  font: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}

.account-logout button:hover {
  color: var(--brand-text);
  background: var(--brand-soft);
}

.account-logout button:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--header-line);
  background: transparent;
  cursor: pointer;
  margin-left: 6px;
  min-width: 38px;
  min-height: 38px;
}

.theme-toggle .toggle-glyph {
  font-size: 13px;
  line-height: 1;
}

/* ---------- Main layout ---------- */
.main {
  flex: 1;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 26px 22px 56px;
}

.main-wide {
  max-width: 1480px;
}

.reading-page {
  width: 100%;
  max-width: var(--reading-width);
  margin-inline: auto;
}

:where(.main, .dashboard, .dashboard-reading, .wide-page, .paper-list, .paper-card, .compact-paper, .detail-layout, .panel) > * {
  min-width: 0;
}

:where(.paper-card, .compact-paper, .section-head, .domain-row, .kv-row, .dashboard-hero, .settings-page) {
  overflow-wrap: anywhere;
}

:where(.paper-card, .compact-paper, .section-head, .dashboard-hero) :is(h1, h2, h3) {
  word-break: keep-all;
}

#main-content { scroll-margin-top: 90px; }

.site-footer {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  text-align: right;
}

.site-footer a {
  color: inherit;
  text-decoration: underline;
}

.about-page p {
  line-height: 1.7;
}

.authors {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 316px;
  gap: 26px;
  align-items: start;
}

.wide-page,
.dashboard {
  display: grid;
  gap: 28px;
}

.dashboard-reading {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: start;
}

.dashboard-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  border-bottom: 1px solid var(--line-strong);
  padding: 8px 0 28px;
}

.dashboard-hero h1 {
  margin: 5px 0 7px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.3;
}

.dashboard-hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.dashboard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 16px;
}

.dashboard-section {
  display: grid;
  gap: 12px;
}

.research-paths {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}

.research-paths a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 12px;
  padding: 18px 20px;
}

.research-paths a + a { border-left: 1px solid var(--line); }
.research-paths a > span:first-child { font-weight: 700; }
.research-paths small { grid-row: 2; color: var(--muted); }
.research-paths a > span:last-child { grid-column: 2; grid-row: 1 / 3; align-self: center; color: var(--brand-text); }
.research-paths a:hover { background: var(--brand-soft); }
.text-link { color: var(--brand-text); font-size: 13px; }

/* ---------- Task browser ---------- */
.task-catalog {
  grid-template-columns: minmax(0, 1fr);
  overflow-wrap: anywhere;
}

.task-catalog :where(section, article, nav, .paper-list) {
  min-width: 0;
}

.task-browser,
.task-detail {
  gap: 28px;
}

.task-hero,
.task-detail-head {
  display: grid;
  gap: 9px;
  border-bottom: 1px solid var(--line);
  padding: 6px 0 24px;
}

.task-hero {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}

.task-hero h1,
.task-detail-head h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.12;
  letter-spacing: 0;
}

.task-hero p,
.section-copy {
  margin: 0;
  color: var(--muted);
}

.task-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  justify-content: flex-end;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 13px;
}

.task-group,
.task-section {
  min-width: 0;
  display: grid;
  gap: 14px;
}

.task-section > h2 { margin: 0; font-size: 22px; line-height: 1.4; }

.category-jump-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.category-jump-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  padding: 7px 10px;
  font-size: 13px;
  font-weight: 700;
}

.category-jump-list span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-weight: 500;
}

.task-category {
  border-top: 1px solid var(--line);
  padding: 12px 0;
  scroll-margin-top: 80px;
}

.task-category summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 36px;
  cursor: pointer;
  color: var(--ink);
  font-weight: 800;
}

.task-category .task-card-grid {
  margin-top: 12px;
}

.task-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 14px;
}

.pilot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 14px;
}

.pilot-detail .task-detail-head p,
.pilot-detail .task-section h2 {
  margin: 0;
}

.pilot-detail .task-detail-head > .badge {
  justify-self: start;
}

.task-card {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  grid-template-areas:
    "thumb title"
    "thumb meta";
  align-items: center;
  gap: 4px 11px;
  min-height: 98px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.task-card:hover {
  border-color: var(--brand-line);
  box-shadow: var(--shadow-md);
}

.task-thumb {
  grid-area: thumb;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--info-soft);
  color: var(--info);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
}

.task-card-title {
  grid-area: title;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.task-card-meta {
  grid-area: meta;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

/* ---------- Institutions ---------- */
.institution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 16px;
}

.institution-grid > .empty { grid-column: 1 / -1; }

.institution-card {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 20px;
}

.institution-head {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
}

.institution-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-sm);
  background: var(--brand-soft);
  color: var(--brand-text);
  font-weight: 700;
}

.institution-card h2 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.institution-domains {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-self: end;
}

.institution-domains .badge { overflow-wrap: anywhere; white-space: normal; }
.institution-count { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; margin: 0; font-size: 13px; color: var(--ink-2); }
.institution-count strong { font-size: 28px; line-height: 1.2; color: var(--ink); font-variant-numeric: tabular-nums; }
.institution-count > span { margin-left: auto; color: var(--muted); }
.institution-browse { display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 12px; font-size: 13px; color: var(--brand-text); }
.institution-search { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, 240px) auto; gap: 14px; align-items: end; }
.institution-search label { display: grid; gap: 6px; font-size: 13px; color: var(--ink-2); }
.institution-search :is(input[type="search"], select) { width: 100%; min-width: 0; min-height: var(--control-height); padding: 9px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font: inherit; }
.institution-search .button { min-height: var(--control-height); }
.institution-results-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin: 20px 0 16px; }
.institution-results-head .section-copy { margin: 0; }
.institution-note { margin: 24px 0 0; max-width: 80ch; color: var(--muted); font-size: 13px; line-height: 1.7; }
.institution-profile { display: grid; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 20px; margin: 20px 0; }
.institution-profile h2 { margin: 0; font-size: 16px; }
.institution-profile .section-copy { margin: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.tab.filter-chip { border: 1px solid var(--line-strong); border-radius: var(--radius-pill); background: var(--surface); }
.tab.filter-chip[aria-current="true"] { color: var(--brand-text); border-color: var(--brand-line); background: var(--brand-soft); }
.tabs.catalog-views { overflow-x: auto; flex-wrap: nowrap; scrollbar-width: thin; }
.catalog-views .tab { flex-shrink: 0; }
.catalog-summary { display: flex; flex-wrap: wrap; gap: 28px; margin: 0; }
.catalog-summary div { display: grid; gap: 2px; }
.catalog-summary dt { color: var(--muted); font-size: 13px; }
.catalog-summary dd { margin: 0; font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }

.benchmark-table,
.task-list,
.task-paper-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.benchmark-row {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) minmax(140px, 0.8fr) minmax(180px, 1fr) 72px 72px;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding: 13px 0;
}

.benchmark-row-head {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.benchmark-row a,
.library-row a,
.task-paper-card a {
  color: var(--brand-text);
}

.library-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 9px 0;
}

.library-row span {
  color: var(--muted);
  text-align: right;
}

.dataset-chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dataset-chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink-2);
  padding: 0 10px;
  font-size: 13px;
}

.dataset-chip:hover {
  border-color: var(--brand-line);
  color: var(--brand-text);
}

.task-paper-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
}

.catalog-card h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.45;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.catalog-counts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.catalog-counts > span { white-space: nowrap; }
.benchmark-dataset-page { min-width: 0; grid-template-columns: minmax(0, 1fr); }
.benchmark-dataset-page time { white-space: nowrap; }

.task-paper-card h3 {
  margin: 0 0 7px;
  font-size: 18px;
  line-height: 1.35;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.section-head h1,
.section-head h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.section-head h1 { font-size: clamp(26px, 2.5vw, 32px); }
.section-head > .button, .section-head > .badge { flex-shrink: 0; }
.dashboard-section > .section-head { margin-bottom: 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-text);
}

.toolbar {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.feed-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.feed-sort {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.category-tabs {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

[data-category-tabs] { min-width: 0; gap: 16px; }
[data-category-tabs] > .section-head { margin-bottom: 0; }

.category-tab {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  padding: 12px 0;
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  text-align: left;
  cursor: pointer;
}

.category-tab:hover { color: var(--ink); }
.category-tab[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--brand-text);
}

.category-code {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
}

.category-tab[aria-selected="true"] .category-code { color: var(--brand-text); }
.category-tab:focus-visible { outline: 2px solid var(--brand); outline-offset: -2px; }
.category-more { white-space: nowrap; font-size: 14px; color: var(--muted); }
.category-more:hover { color: var(--brand-text); }

.category-tree,
.category-tree ul {
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-wrap: anywhere;
}

.category-tree ul {
  margin-top: 12px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.category-tree .section-copy { margin: 4px 0; }

.markdown-content {
  min-width: 0;
  overflow-wrap: anywhere;
}

.markdown-content > :first-child { margin-top: 0; }
.markdown-content > :last-child { margin-bottom: 0; }
.markdown-content pre, .markdown-content table, mjx-container[display="true"] {
  max-width: 100%;
  overflow-x: auto;
}

/* ---------- Tabs ---------- */
.tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.tab {
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  padding: 7px 14px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.tab:hover {
  color: var(--ink);
}

.tab[aria-current="page"],
.tab[aria-current="true"],
.tab[aria-pressed="true"] {
  background: var(--surface);
  color: var(--brand-text);
  box-shadow: var(--shadow-sm);
}

/* ---------- Forms ---------- */
.filter-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr)) auto;
  align-items: end;
  gap: 10px;
}

.filter-grid :where(input:not([type="checkbox"]):not([type="radio"]), select, textarea) {
  width: 100%;
  min-width: 0;
  min-height: var(--control-height);
  font-size: var(--control-font-size);
  line-height: 1.5;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  padding: 9px 11px;
}

.feed-filter-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.feed-filter-grid > label {
  display: grid;
  gap: 6px;
  color: var(--ink-2);
  font-size: 13px;
}

.filter-grid input::placeholder,
.filter-grid textarea::placeholder {
  color: var(--muted);
}

.filter-grid textarea {
  min-height: 76px;
  resize: vertical;
}

.check-row {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.filter-grid > label {
  min-width: 0;
}

.check-row input,
.pref-check input {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  min-height: 0;
  margin: 0;
  accent-color: var(--brand-text);
}

.filter-grid :where(input:not([type="checkbox"]):not([type="radio"]), select),
.filter-grid > .button {
  height: var(--control-height);
  min-height: var(--control-height);
  font-size: var(--control-font-size);
  line-height: 1.5;
}

/* ---------- User settings ---------- */
.settings-page {
  display: grid;
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

.settings-heading h1 {
  margin: 0 0 6px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.settings-heading p,
.settings-section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.settings-card {
  padding: 24px;
  gap: 20px;
}

.settings-section-head {
  display: grid;
  gap: 5px;
}

.settings-section-head h2 {
  font-size: 17px;
}

.settings-account .kv-row {
  justify-content: flex-start;
  gap: 24px;
}

.settings-account .kv-row > :first-child {
  min-width: 48px;
}

.settings-account .kv-row > :last-child {
  color: var(--ink);
  overflow-wrap: anywhere;
}

.preferences-form {
  grid-template-columns: minmax(0, 1fr) 140px auto;
  gap: 16px;
}

.pref-check {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  font-size: 14px;
  cursor: pointer;
}

.settings-field {
  display: grid;
  gap: 7px;
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
}

.subscription-form {
  grid-template-columns: 160px minmax(0, 1fr) auto;
  gap: 12px;
}

.subscription-form [hidden] { display: none; }

.pref-status:empty {
  display: none;
}

.pref-status {
  color: var(--muted);
  font-size: 13px;
}

.settings-card .empty {
  padding: 24px 16px;
  background: var(--surface-2);
}

.domain-row > span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.domain-row > .button {
  flex-shrink: 0;
}

/* ---------- Buttons ---------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 1px solid var(--button-bg);
  border-radius: var(--radius-sm);
  background: var(--button-bg);
  color: var(--button-ink);
  padding: 0 16px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.button:hover {
  background: var(--button-hover);
  border-color: var(--button-hover);
}

.button:active {
  transform: translateY(1px);
}

.button.secondary {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  font-weight: 500;
}

.button.secondary:hover {
  background: var(--surface-2);
  border-color: var(--brand-text);
  color: var(--brand-text);
}

.button.compact {
  min-height: 34px;
  padding: 4px 10px;
  font-size: 13px;
}

.button[data-active="true"] {
  border-color: var(--brand-line);
  background: var(--brand-soft);
  color: var(--brand-text);
}

.button:focus-visible,
.paper-action:focus-visible,
button:focus-visible,
summary:focus-visible,
[data-stat-toggle]:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
.tab:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--surface);
  color: var(--ink);
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.action-status:not(:empty) {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: max-content;
  max-width: calc(100% - 32px);
  padding: 12px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-md);
}

button:disabled {
  cursor: wait;
  opacity: 0.6;
}

/* ---------- Feed / cards ---------- */
.paper-list {
  display: grid;
  gap: 14px;
}

.paper-card {
  display: grid;
  gap: 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 18px 20px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.paper-list .paper-card:hover {
  border-color: var(--brand-line);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.discovery-card h3,
.discovery-card p {
  margin: 0;
}

.dataset-description summary { cursor: pointer; color: var(--ink-2); }
.code-more summary { cursor: pointer; color: var(--ink-2); padding: 8px 0; }
.dataset-search { display: grid; gap: 6px; }
.dataset-search > label { font-size: 14px; color: var(--ink-2); }
.dataset-search-controls { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.dataset-search input { width: 100%; min-width: 0; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); padding: 10px 12px; }

.task-search input[type="search"] {
  flex: 1;
  min-width: 180px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  padding: 9px 12px;
}

.paper-detail-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
}

.paper-detail-head h1 {
  margin-top: 10px;
}

/* One card header line: identity/context on the left, dates on the right.
   Items wrap only when the line is full. */
.paper-card-head {
  display: flex;
  align-items: flex-start;
  gap: 8px 12px;
  min-width: 0;
}

.paper-meta-line {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 30px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 12px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.paper-meta-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 14px;
  min-width: 0;
  /* Clips the separator dot of an item that wraps to the start of a line. */
  overflow: hidden;
}

.paper-meta-main > * {
  position: relative;
  overflow-wrap: anywhere;
}

.paper-meta-main > * + *::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  width: 3px;
  height: 3px;
  margin-top: -1px;
  border-radius: 50%;
  background: var(--line-strong);
}

.paper-meta-item.interest { color: var(--brand-text); font-weight: 600; }
.paper-meta-item.code { color: var(--good); font-weight: 600; }
.paper-meta-label { color: var(--muted); font-weight: 500; }

.paper-meta-dates {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 2px 12px;
  margin-left: auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.paper-meta-saved {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.paper-meta-main > .badge { padding: 2px 8px; }
.paper-meta-main > .badge + *::before { display: none; }

/* Like/Save follow the title in DOM (keyboard and reading order) but are
   pinned beside the header line in the card's top-right corner. */
.paper-card:has(> .paper-actions),
.compact-paper:has(> .paper-actions) {
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 12px;
}

.paper-card:has(> .paper-actions) > *,
.compact-paper:has(> .paper-actions) > * { grid-column: 1 / -1; }

.paper-card:has(> .paper-actions) > .paper-card-head,
.compact-paper:has(> .paper-actions) > .paper-card-head { grid-column: 1; grid-row: 1; }

.paper-card:has(> .paper-actions) > .paper-actions,
.compact-paper:has(> .paper-actions) > .paper-actions { grid-column: 2; grid-row: 1; align-self: start; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.paper-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-end;
  white-space: nowrap;
}

.paper-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 44px;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--muted);
  padding: 0 9px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}

.paper-action:hover,
.paper-action[data-active="true"] {
  border-color: var(--brand-line);
  background: var(--brand-soft);
  color: var(--brand-text);
}

.paper-card h1,
.paper-card h2 {
  margin: 0;
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.paper-card h1 {
  font-size: clamp(26px, 2.5vw, 32px);
  line-height: 1.35;
}

.paper-card h2 a:hover {
  color: var(--brand-text);
}

.original-title {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 8px 0;
  overflow-wrap: anywhere;
}

.filter-disclosure summary { cursor: pointer; padding: 12px 0; color: var(--muted); }
.filter-disclosure[open] summary { margin-bottom: 8px; }
.paper-identity {
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.meta,
.badges,
.metrics,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.meta {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  gap: 6px 14px;
}

.meta > span {
  position: relative;
}

.meta > span + span::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  width: 3px;
  height: 3px;
  margin-top: -1px;
  border-radius: 50%;
  background: var(--line-strong);
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
  padding: 4px 10px;
  max-width: 100%;
}

.badge.live {
  border-color: var(--brand-line);
  background: var(--brand-soft);
  color: var(--brand-text);
  font-weight: 600;
}

.badge.update {
  border-color: var(--info-line);
  background: var(--info-soft);
  color: var(--info);
}

.badge.code {
  border-color: var(--good-line);
  background: var(--good-soft);
  color: var(--good);
}

.badge.ops {
  font-family: var(--font-mono);
  border-color: var(--line-strong);
  color: var(--ink-2);
}

.compact-paper-list {
  display: grid;
  gap: 8px;
}

.compact-paper {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 12px 14px;
}

.compact-paper h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.5;
}


/* ---------- Abstract ---------- */
.abstract {
  margin: 0;
  color: var(--ink-2);
  line-height: 1.72;
  font-size: 15px;
}

.abstract.clamp {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

/* ---------- Sidebar / panels ---------- */
.side {
  display: grid;
  gap: 16px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 16px 18px;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--ink);
  font-weight: 600;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stat {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 12px 13px;
}

.stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.stat span {
  color: var(--muted);
  font-size: 12px;
}

.domain-list,
.crawl-list,
.kv-list {
  display: grid;
  gap: 2px;
}

.domain-row,
.crawl-row,
.kv-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 9px 0;
  color: var(--muted);
  font-size: 13.5px;
}

.domain-row:last-child,
.crawl-row:last-child,
.kv-row:last-child {
  border-bottom: 0;
}

.domain-row a {
  color: var(--ink-2);
  font-weight: 500;
}

.domain-row a:hover {
  color: var(--brand-text);
}

#paper-code .domain-row > a {
  min-width: 0;
  overflow-wrap: anywhere;
}

#paper-code .domain-row > span {
  flex-shrink: 0;
}

.kv-row strong {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--ink);
}

/* ---------- Detail ---------- */
.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 316px;
  gap: 26px;
  align-items: start;
}

.detail-layout > .paper-card {
  padding: 26px 28px;
}

.submission-history { display: grid; gap: 12px; padding: 0; list-style: none; }
.submission-history li { display: flex; flex-wrap: wrap; gap: 4px 16px; align-items: baseline; }
.submission-history time { color: var(--ink-2); font-size: 14px; }
.detail-section.author-comments { gap: 6px; margin-top: 12px; }
.author-comments .meta { margin: 0; }
.author-comments .abstract { white-space: pre-wrap; }

.detail-section {
  display: grid;
  gap: 11px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.detail-section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.detail-section h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.abstract-stack {
  gap: 12px;
}

.abstract-box {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 14px 15px;
}

.abstract-box h2 {
  margin-bottom: 8px;
}

.translation-suggest {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 10px;
}

.translation-suggest textarea {
  width: 100%;
  min-width: 0;
  min-height: 84px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--ink);
  background: var(--surface);
  resize: vertical;
}

.translation-suggest .pref-status { grid-column: 1 / -1; }

.math-content mjx-container {
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
}

/* ---------- Admin ---------- */
.admin-workspace {
  grid-template-columns: minmax(0, 1fr) 280px;
}

.admin-card {
  min-width: 0;
  padding: 22px 24px;
}

.admin-section {
  min-width: 0;
  gap: 9px;
  margin-top: 18px;
  padding-top: 18px;
}

.admin-form {
  --control-height: 36px;
  --control-font-size: 13px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 8px;
}

.admin-form :where(input:not([type="checkbox"]):not([type="radio"]), select, textarea) {
  padding: 7px 10px;
}

.admin-form textarea {
  min-height: 94px;
}

.admin-form .check-row {
  min-height: var(--control-height);
  font-size: var(--control-font-size);
  line-height: 1.5;
}

.admin-form .button {
  width: auto;
  padding: 0 12px;
  justify-self: start;
}

.admin-form-provider {
  grid-template-columns: minmax(120px, 1.2fr) 76px auto auto auto;
}

.admin-form-api-key {
  grid-template-columns: minmax(180px, 1fr) auto;
}

.admin-guide {
  display: grid;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 12px;
  color: var(--muted);
  font-size: 13px;
}

.admin-guide strong {
  color: var(--ink);
}

.admin-guide p {
  margin: 0;
}

.admin-guide pre {
  margin: 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: 10px;
  color: var(--ink);
}

.admin-form-command {
  grid-template-columns: 112px minmax(110px, 0.9fr) minmax(110px, 0.9fr) minmax(220px, 2fr) auto;
}

.admin-form-ranking {
  grid-template-columns: repeat(5, minmax(86px, 1fr)) auto;
}

.admin-form-prompt {
  grid-template-columns: 112px auto minmax(180px, 1fr) minmax(240px, 1.4fr) auto;
  align-items: start;
}

.admin-form-domain {
  grid-template-columns: minmax(140px, 1fr) minmax(160px, 1.2fr) 100px auto;
}

.admin-form-curation {
  grid-template-columns: minmax(120px, 1fr) auto auto auto minmax(140px, 1.2fr) auto;
}

.admin-form-queue {
  grid-template-columns: minmax(120px, 1fr) 112px minmax(140px, 1.2fr) auto;
}

.admin-list {
  display: grid;
  gap: 0;
}

.admin-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
}

form.admin-row {
  margin: 0;
}

.admin-row:last-child {
  border-bottom: 0;
}

.admin-row-main {
  display: grid;
  grid-template-columns: minmax(150px, 0.45fr) minmax(0, 1fr);
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.admin-row-title {
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.admin-row-meta {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.admin-row-side {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
  white-space: nowrap;
}

.admin-domain-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.admin-inline-select {
  min-height: 28px;
  width: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  padding: 3px 28px 3px 8px;
  font-size: 12.5px;
}

.admin-note {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

.admin-table thead th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line-strong);
}

.admin-table th.col-right {
  text-align: right;
}

.admin-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  vertical-align: top;
  overflow-wrap: anywhere;
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.admin-table td.col-right {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.admin-table td.col-mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.admin-table td.col-danger {
  color: var(--warn);
  font-weight: 600;
}

.admin-cell-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.admin-trow.has-detail {
  cursor: pointer;
}

.admin-trow.has-detail:hover td,
.admin-trow.has-detail[aria-expanded='true'] td {
  background: var(--surface-2);
}

.stat-caret {
  display: inline-block;
  margin-left: 6px;
  color: var(--muted);
  transition: transform 0.15s ease;
}

.admin-trow[aria-expanded='true'] .stat-caret {
  transform: rotate(180deg);
}

.admin-detail-row > td {
  background: var(--surface-2);
  padding: 0 10px 10px;
}

.stat-detail {
  display: grid;
  gap: 6px;
  padding: 10px 0 2px;
}

.stat-detail-item {
  display: grid;
  gap: 2px;
  border-left: 2px solid var(--warn-line);
  padding-left: 10px;
}

.stat-detail-meta {
  color: var(--muted);
  font-size: 11px;
  font-family: var(--font-mono);
}

.stat-detail-msg {
  color: var(--ink-2);
  font-size: 12px;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.admin-field {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.admin-form-ranking {
  align-items: end;
}

.admin-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1;
  padding: 4px 7px;
}

.admin-chip.danger {
  border-color: var(--warn-line);
  background: var(--warn-soft);
  color: var(--warn);
}

.admin-secret {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius-sm);
  background: var(--brand-soft);
  color: var(--ink-2);
  padding: 9px 11px;
  font-size: 12.5px;
}

.admin-secret[hidden] {
  display: none;
}

.admin-secret code {
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--brand-text);
  font-family: var(--font-mono);
}

/* ---------- Empty ---------- */
.empty {
  display: grid;
  place-items: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 14px;
  padding: 28px 18px;
  text-align: center;
}

.evaluation-table-wrap { min-width: 0; max-width: 100%; overflow-x: auto; }
.evaluation-table { width: 100%; border-collapse: collapse; text-align: left; }
.evaluation-table th, .evaluation-table td { padding: 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.evaluation-table th { min-width: 140px; max-width: 360px; overflow-wrap: anywhere; }
.evaluation-table td { min-width: 180px; max-width: 440px; overflow-wrap: anywhere; }
.evaluation-table caption { text-align: left; padding: 12px 0; color: var(--muted); }
.evaluation-metrics { margin: 0; }
.evaluation-metrics div { display: flex; gap: 12px; justify-content: space-between; }
.evaluation-metrics dd { margin: 0; font-variant-numeric: tabular-nums; }

/* ---------- Responsive ---------- */
@media (min-width: 1101px) {
  /* Share natural row heights across the two independent reading lists. */
  .dashboard-reading {
    grid-auto-flow: row dense;
    gap: 8px 28px;
    align-items: stretch;
  }

  .dashboard-reading > .dashboard-section,
  .dashboard-reading > .dashboard-section > .compact-paper-list {
    display: contents;
  }

  .dashboard-reading > .dashboard-section:first-child > :not(.compact-paper-list),
  .dashboard-reading > .dashboard-section:first-child > .compact-paper-list > * {
    grid-column: 1;
  }

  .dashboard-reading > .dashboard-section:last-child > :not(.compact-paper-list),
  .dashboard-reading > .dashboard-section:last-child > .compact-paper-list > * {
    grid-column: 2;
  }

  .dashboard-reading .section-copy { margin-bottom: 8px; }
}

@media (max-width: 1100px) {
  .dashboard-reading { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 1000px) {
  .research-paths { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .research-paths a:nth-child(3) { border-left: 0; }
  .research-paths a:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .workspace,
  .detail-layout,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .topbar-inner {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "brand account"
      "primary primary"
      "search search";
    row-gap: 12px;
  }

  .brand {
    grid-area: brand;
  }

  .nav {
    grid-area: account;
  }

  .search {
    grid-area: search;
    max-width: none;
  }

  .filter-grid {
    grid-template-columns: 1fr 1fr;
  }

  .preferences-form .pref-check {
    grid-column: 1 / -1;
  }

  .subscription-form {
    grid-template-columns: 140px minmax(0, 1fr) auto;
  }

  .admin-form {
    grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  }
}

@media (max-width: 640px) {
  .institution-search { grid-template-columns: minmax(0, 1fr) auto; }
  .institution-search label:first-child { grid-column: 1 / -1; }
  .institution-card { padding: 18px; }
  .research-paths a { padding: 14px; }
  .research-paths small { font-size: 12px; }
  .institution-results-head .tabs { width: 100%; }
  .topbar { position: static; }
  #main-content { scroll-margin-top: 16px; }

  .main {
    padding: 20px 14px 44px;
  }

  .topbar-inner {
    padding: 11px 14px;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand account" "search search" "primary primary";
  }

  .nav {
    justify-content: flex-end;
    flex-wrap: nowrap;
    min-width: 0;
  }

  .filter-grid,
  .translation-suggest {
    grid-template-columns: minmax(0, 1fr);
  }

  .settings-card,
  .detail-layout > .paper-card {
    padding: 20px 16px;
  }

  .settings-heading h1 {
    font-size: 24px;
  }

  .settings-page {
    gap: 16px;
  }

  .paper-card {
    padding: 16px;
  }

  .paper-meta-dates { margin-left: 0; }
  .paper-card h1 { font-size: 25px; }
  .paper-card h2 { font-size: 19px; }
  .paper-action { min-height: 40px; }
  .dashboard, .dashboard-reading { gap: 24px; }
  .dashboard-hero { padding-bottom: 24px; }
  .dashboard-actions { width: 100%; }
  .dashboard-actions .button { flex: 1 1 auto; min-height: 42px; }
  .nav a, .nav summary { min-height: 40px; display: inline-flex; align-items: center; }
  .feed-sort { margin-left: 0; }
  .feed-controls { align-items: stretch; }
  .feed-controls > .tab { padding-left: 0; }
  .feed-controls > .feed-sort { align-self: flex-start; }
  .account-menu summary { max-width: 180px; white-space: normal; overflow-wrap: anywhere; }


  .dashboard-hero,
  .task-hero,
  .benchmark-row,
  .compact-paper,
  .paper-detail-head,
  .task-paper-card,
  .admin-row,
  .admin-domain-row {
    grid-template-columns: 1fr;
  }

  .dashboard-actions,
  .task-hero-stats,
  .paper-actions,
  .admin-row-side {
    justify-content: flex-start;
  }

  .admin-row-main {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .account-dropdown {
    left: auto;
    right: 0;
  }
}

@media (min-width: 380px) and (max-width: 640px) {
  .feed-filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 22px;
}

.pagination-page {
  color: var(--muted);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.pagination [aria-disabled='true'] {
  opacity: 0.45;
  pointer-events: none;
}