/* Read — dark-first reader theme. Palette mirrors the scraper's chapter_html
   style (bg #15171a / fg #d8d4cc) so raw chapter pages and the app feel the
   same. One accent color. Spacing in multiples of 4. */

:root {
  --bg: #15171a;
  --fg: #d8d4cc;
  --muted: #8a8f98;
  --card: #1d2025;
  --line: #3a3d42;
  --accent: #8ab4f8;
  --accent-fg: #0c1014;
  --danger: #e8736f;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf8;
    --fg: #222;
    --muted: #6b6f76;
    --card: #ffffff;
    --line: #ddd;
    --accent: #2b6cb0;
    --accent-fg: #ffffff;
    --danger: #b3261e;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-text-size-adjust: 100%;
}

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

/* --- chrome --- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar h1 {
  flex: 1;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 650;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar .back {
  font-size: 1.5rem;
  line-height: 1;
  padding: 4px 8px 4px 0;
}

.pill {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}

.pill.offline { color: var(--danger); border-color: var(--danger); }
.pill.syncing { color: var(--accent); border-color: var(--accent); }

.iconbtn {
  font-size: 1.25rem;
  background: none;
  border: none;
  color: var(--fg);
  padding: 8px;
  cursor: pointer;
}

/* --- generic --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 20px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
}

.btn.danger { background: transparent; border: 1px solid var(--danger); color: var(--danger); }

.notice {
  margin: 48px 16px;
  text-align: center;
  color: var(--muted);
  line-height: 1.6;
}

.error { color: var(--danger); margin: 8px 0 0; min-height: 1.2em; }

/* --- login --- */

.login-wrap {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 24px calc(28px + env(safe-area-inset-bottom));
}

.login-card h1 { margin: 0 0 20px; font-size: 1.75rem; }

.login-card label { display: block; font-size: 0.85rem; color: var(--muted); margin: 16px 0 4px; }

.login-card input {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  font-size: 1rem;
}

.login-card .btn { width: 100%; margin-top: 24px; }

/* --- dashboard --- */

.cards { padding: 8px 16px calc(24px + env(safe-area-inset-bottom)); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  margin: 12px 0;
}

.card .title-row { display: block; color: var(--fg); }

.card h2 { margin: 0 0 4px; font-size: 1.15rem; }

.card .meta { margin: 0; font-size: 0.85rem; color: var(--muted); line-height: 1.5; }

.card .meta .ahead { color: var(--accent); }

.card .actions { display: flex; gap: 12px; margin-top: 12px; }

/* --- series chapter grid --- */

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
  gap: 8px;
  padding: 16px 16px calc(24px + env(safe-area-inset-bottom));
}

.ch {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

.ch.cached { border-color: var(--accent); }

.ch.current {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
  font-weight: 700;
}

/* --- reader --- */

.reader-content {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.8;
  max-width: 720px;
  margin: 0 auto;
  padding: 8px 20px calc(120px + env(safe-area-inset-bottom));
}

.reader-content p { margin: 0.8rem 0; }

.reader-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
}

.reader-footer .btn { flex: 1; }

.reader-footer .btn[aria-disabled='true'] {
  opacity: 0.35;
  pointer-events: none;
}

.reader-footer .where {
  flex: 0 1 auto;
  font-size: 0.85rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* --- settings --- */

.settings { padding: 8px 16px calc(24px + env(safe-area-inset-bottom)); }

.setting {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  margin: 12px 0;
}

.setting h3 { margin: 0 0 4px; font-size: 1rem; }

.setting .hint { margin: 0 0 12px; font-size: 0.85rem; color: var(--muted); line-height: 1.5; }

.presets { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.presets .btn { min-width: 56px; padding: 8px 12px; }

.presets input {
  width: 88px;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  font-size: 1rem;
}

.kv { display: flex; justify-content: space-between; font-size: 0.9rem; margin: 4px 0; }
.kv .k { color: var(--muted); }