/* kalakarma.institute — research surface
 *
 * Self-hosted, no CDN, no webfont: the Content-Security-Policy in main.py is
 * default-src 'self' and there is no reason to weaken it for typography.
 *
 * Light and dark are both defined on :root via a media query. Long tables scroll
 * inside .table-scroll rather than widening the page — a research table with eight
 * columns must stay readable at 390px without the body scrolling sideways.
 */

:root {
  color-scheme: light dark;

  --bg: #f7f6f3;
  --bg-panel: #ffffff;
  --bg-sunken: #efece6;
  --ink: #1b1a17;
  --ink-soft: #55514a;
  --ink-faint: #7d786f;
  --rule: #ddd8ce;
  --rule-strong: #c4bdb0;
  --accent: #7a4a12;
  --accent-ink: #ffffff;
  --boundary-bg: #fdf4e7;
  --boundary-rule: #c88a2e;
  --focus: #0b62d0;

  --measure: 68ch;
  --radius: 10px;
  --pad: 1.25rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14130f;
    --bg-panel: #1c1a16;
    --bg-sunken: #23201b;
    --ink: #ece7dd;
    --ink-soft: #b7b0a4;
    --ink-faint: #8b8479;
    --rule: #35312a;
    --rule-strong: #4a453b;
    --accent: #e0a75a;
    --accent-ink: #1a1712;
    --boundary-bg: #2a2116;
    --boundary-rule: #a9762a;
    --focus: #79b0ff;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 ui-sans-serif, system-ui, "Segoe UI", "Noto Sans TC", "Noto Sans JP",
        "Hiragino Sans", "Microsoft JhengHei", sans-serif;
  overflow-wrap: break-word;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--bg-sunken);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
  z-index: 20;
}
.skip-link:focus { left: 0; }

/* ── top bar ───────────────────────────────────────────────────────── */

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
  background: var(--bg-panel);
  border-bottom: 1px solid var(--rule);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.01em;
}
.brand-mark { display: block; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lang { display: inline-flex; border: 1px solid var(--rule-strong); border-radius: 999px; overflow: hidden; }
.lang-btn {
  padding: 0.2rem 0.65rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-decoration: none;
  background: transparent;
}
.lang-btn + .lang-btn { border-left: 1px solid var(--rule); }
.lang-btn.active { background: var(--accent); color: var(--accent-ink); }

.account {
  font-size: 0.85rem;
  color: var(--ink-faint);
  max-width: 22ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid var(--rule-strong);
  color: var(--ink);
}
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-quiet:hover { background: var(--bg-sunken); }

/* ── layout ────────────────────────────────────────────────────────── */

.page {
  max-width: 76rem;
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2.5rem) clamp(1rem, 4vw, 2rem) 3rem;
}
.page:focus { outline: none; }

.shell { display: block; }

.sidebar {
  border-bottom: 1px solid var(--rule);
  background: var(--bg-panel);
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
}

.nav-group {
  margin: 0.9rem 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.35rem; }
.nav-item {
  display: block;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-decoration: none;
  border: 1px solid transparent;
}
.nav-item:hover { background: var(--bg-sunken); }
.nav-item.active { background: var(--bg-sunken); color: var(--ink); border-color: var(--rule-strong); font-weight: 600; }

@media (min-width: 60rem) {
  .shell {
    display: grid;
    grid-template-columns: 17rem minmax(0, 1fr);
    align-items: start;
    max-width: 82rem;
    margin: 0 auto;
  }
  .sidebar {
    position: sticky;
    top: 0;
    border-bottom: none;
    border-right: 1px solid var(--rule);
    min-height: calc(100vh - 3.5rem);
    padding: 1.5rem 1rem;
  }
  .nav-list { display: block; }
  .nav-item { border-radius: var(--radius); }
  .page-with-sidebar { max-width: none; }
}

/* ── panels (public / pending / error) ─────────────────────────────── */

.panel {
  max-width: var(--measure);
  margin: 0 auto;
  background: var(--bg-panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 4vw, 2.25rem);
}
.panel-hero { border-top: 3px solid var(--accent); }
.panel-pending { border-top: 3px solid var(--boundary-rule); }

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

h1 { font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem); line-height: 1.25; margin: 0 0 0.75rem; }
h2 { font-size: clamp(1.15rem, 1rem + 0.7vw, 1.4rem); line-height: 1.3; margin: 2rem 0 0.6rem; }

p { max-width: var(--measure); }
.lede { font-size: 1.06rem; color: var(--ink-soft); }
.note { color: var(--ink-faint); font-size: 0.92rem; }

.account-line { font-family: ui-monospace, monospace; color: var(--ink-soft); }

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: var(--boundary-bg);
  border: 1px solid var(--boundary-rule);
  font-size: 0.9rem;
}
.status-chip .dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--boundary-rule);
  flex: none;
}

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }

/* ── topic index ───────────────────────────────────────────────────── */

.topic-cards { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 1rem; }
@media (min-width: 48rem) {
  .topic-cards { grid-template-columns: repeat(auto-fit, minmax(21rem, 1fr)); }
}
.topic-card {
  background: var(--bg-panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.topic-card h2 { margin: 0 0 0.5rem; font-size: 1.15rem; }
.topic-card h2 a { text-decoration: none; }
.topic-card h2 a:hover { text-decoration: underline; }
.card-meta { margin: 0.9rem 0 0; font-size: 0.88rem; }
.card-meta dt { color: var(--ink-faint); font-size: 0.72rem; letter-spacing: 0.09em; text-transform: uppercase; }
.card-meta dd { margin: 0.2rem 0 0; color: var(--ink-soft); }
.card-foot { margin-top: 1rem; font-size: 0.82rem; color: var(--ink-faint); }
.footer-sep { margin: 0 0.5rem; }

/* ── provenance block ──────────────────────────────────────────────── */

.provenance {
  margin: 1.75rem 0 2.5rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-panel);
  overflow: hidden;
}
.prov-row { padding: 1rem 1.15rem; border-top: 1px solid var(--rule); }
.prov-row:first-child { border-top: none; }
.prov-label {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 700;
}
.prov-value { margin: 0; font-size: 0.95rem; color: var(--ink-soft); max-width: none; }
.prov-boundary {
  background: var(--boundary-bg);
  border-left: 4px solid var(--boundary-rule);
}
.prov-boundary .prov-label { color: var(--boundary-rule); }
.prov-boundary .prov-value { color: var(--ink); }

/* ── tables ────────────────────────────────────────────────────────── */

.table-wrap { margin: 1.5rem 0; }
.table-wrap figcaption {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-bottom: 0.5rem;
}
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-panel);
}
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td {
  text-align: left;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
thead th {
  background: var(--bg-sunken);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-faint);
  white-space: nowrap;
}
tbody tr:last-child th, tbody tr:last-child td { border-bottom: none; }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pointer-cell code { white-space: nowrap; }
.citation-cell { color: var(--ink-soft); font-size: 0.85rem; min-width: 20rem; }

/* ── citations ─────────────────────────────────────────────────────── */

.citations { padding-left: 1.25rem; }
.citations li { margin-bottom: 1rem; }
.citation-title { margin: 0; font-weight: 600; }
.citation-meta { margin: 0.25rem 0 0; font-size: 0.85rem; color: var(--ink-faint); display: grid; gap: 0.15rem; }

/* ── footer ────────────────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--rule);
  padding: 1rem clamp(1rem, 4vw, 2rem);
  font-size: 0.82rem;
  color: var(--ink-faint);
  text-align: center;
}

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