/* DocDB modern — Phase 1 design shell.
   No build pipeline: one hand-written stylesheet, design tokens up top. */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2733;
  --text-muted: #5b6b7b;
  --border: #dde3ea;
  --accent: #0f62a5;
  --accent-contrast: #ffffff;
  --accent-soft: #e8f1f9;
  --warn-bg: #fff7e0;
  --warn-border: #e5c65a;
  --error-bg: #fdecec;
  --error-border: #d9777c;
  --radius: 10px;
  --shadow: 0 1px 3px rgb(16 30 44 / 0.08), 0 4px 14px rgb(16 30 44 / 0.05);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
          Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12181f;
    --surface: #1a232d;
    --text: #e4ebf2;
    --text-muted: #93a4b5;
    --border: #2c3947;
    --accent: #4d9fdc;
    --accent-contrast: #0c1319;
    --accent-soft: #1d2f40;
    --warn-bg: #33290f;
    --warn-border: #7a6420;
    --error-bg: #3a1d20;
    --error-border: #7c3b41;
    --shadow: 0 1px 3px rgb(0 0 0 / 0.4);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.site-nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.brand {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.nav-links a {
  display: block;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  color: var(--text-muted);
}
.nav-links a.active,
.nav-links a:hover {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}
.nav-links a[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
}
.nav-user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-user form { margin: 0; }
.username { color: var(--text-muted); font-size: 0.92rem; }

/* Banner */
.preview-banner {
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-border);
  padding: 0.45rem 1.25rem;
  text-align: center;
  font-size: 0.92rem;
}

/* Layout */
.container {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  flex: 1;
}

.hero h1 { margin: 0 0 0.5rem; letter-spacing: -0.02em; }
.lead { color: var(--text-muted); max-width: 60ch; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.4rem;
}
.card h2 { margin-top: 0; font-size: 1.1rem; }
.muted { color: var(--text-muted); font-size: 0.92rem; }

/* Forms & buttons */
label { display: block; margin: 0.9rem 0 0.25rem; font-weight: 600; }
input[type="text"],
input[type="password"],
input[type="search"],
select, textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.btn {
  display: inline-block;
  padding: 0.5rem 1.1rem;
  font: inherit;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  background: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
  margin-top: 1.25rem;
  width: 100%;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost {
  color: var(--text-muted);
  border-color: var(--border);
  padding: 0.3rem 0.8rem;
  font-size: 0.9rem;
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-muted); }

/* Auth card */
.auth-card {
  max-width: 400px;
  margin: 3rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
}
.auth-card h1 { margin-top: 0; }

/* Flash messages */
.flash {
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}
.flash-error { background: var(--error-bg); border-color: var(--error-border); }

/* Nav quick search */
.nav-search {
  position: relative;
  margin-left: auto;
  min-width: 220px;
  flex: 0 1 300px;
}
.nav-search input[type="search"] {
  width: 100%;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-size: 0.92rem;
}
.quick-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.qr-item {
  display: block;
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 0.92rem;
}
.qr-item:last-child { border-bottom: 0; }
.qr-item:hover { background: var(--accent-soft); text-decoration: none; }
.qr-all { color: var(--accent); font-weight: 600; }
.nav-search ~ .nav-user { margin-left: 0; }

.tree-indent { display: inline-block; }

/* Access card */
.access-card { margin-top: 2rem; }
.access-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0 0.75rem;
}
.access-table th, .access-table td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}
.access-table tr.stale td { opacity: 0.55; }
.badge {
  display: inline-block;
  padding: 0.05rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.badge-yes {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* Data tables, filters, document pages */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.data-table thead th {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.data-table tbody tr:hover { background: var(--accent-soft); }
.data-table tr.current td { background: var(--accent-soft); }
.mono { font-variant-numeric: tabular-nums; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin: 1rem 0;
}
.filters label { margin: 0; font-size: 0.88rem; }
.filters select { width: auto; min-width: 9rem; }

.pagination {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin: 1.25rem 0;
}

.breadcrumb { margin-bottom: 0.75rem; }
.doc-id { margin-top: -0.4rem; }
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  margin: 1.25rem 0;
}
.detail-grid .card, .recent-card, .access-card { margin-top: 1.25rem; }
.file-list { list-style: none; padding: 0; margin: 0; }
.file-list li { padding: 0.3rem 0; border-bottom: 1px dashed var(--border); }
.file-list li:last-child { border-bottom: 0; }
dl.meta dt {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0.6rem;
}
dl.meta dd { margin: 0.1rem 0 0; }

/* Meetings & agenda */
.session-card { margin-top: 1rem; }
.session-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.session-head h3 { margin: 0; }
.agenda-table { margin: 0.5rem 0 0; }
.agenda-time {
  width: 4.5rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.agenda-separator td {
  background: var(--bg);
  color: var(--text-muted);
  font-style: italic;
}
.talk-note { font-size: 0.9rem; margin-top: 0.15rem; }
.separator-block {
  margin: 0.9rem 0.25rem;
  color: var(--text-muted);
}

/* Calendar */
.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.cal-nav { display: flex; gap: 0.5rem; }
.calendar {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  table-layout: fixed;
}
.calendar th {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.4rem;
  font-size: 0.8rem;
  text-transform: uppercase;
}
.calendar td {
  border: 1px solid var(--border);
  vertical-align: top;
  height: 5.5rem;
  padding: 0.25rem;
}
.calendar td.cal-out { background: var(--bg); opacity: 0.55; }
.calendar td.cal-today { outline: 2px solid var(--accent); outline-offset: -2px; }
.cal-day { font-size: 0.8rem; color: var(--text-muted); text-align: right; }
.cal-event {
  display: block;
  font-size: 0.78rem;
  line-height: 1.25;
  padding: 0.1rem 0.3rem;
  margin-top: 0.15rem;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.cal-event:hover { text-decoration: none; filter: brightness(1.05); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
  text-align: center;
  padding: 1rem;
}
.site-footer p { margin: 0; }