:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --surface-2: #fafafa;
  --border: #e6e6e2;
  --text: #1f2328;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-soft: #eff6ff;
  --badge: #f3f4f6;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
  --radius: 14px;
  --maxw: 920px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #171a21;
    --surface-2: #1d2129;
    --border: #2a2f3a;
    --text: #e6e8ec;
    --muted: #9aa3b2;
    --accent: #60a5fa;
    --accent-soft: #1e2a44;
    --badge: #232833;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  padding: 36px 0 20px;
}

.site-header h1 {
  margin: 0;
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tagline {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* 作者與 footer 共用同一組連結樣式，確保顏色完全一致 */
.text-link,
.text-link:visited {
  color: var(--accent);
  text-decoration: none;
}

.text-link:hover { text-decoration: underline; }

.controls {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.control-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 180px;
  min-width: 0;
}

.field span {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.field select,
.field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field select:focus,
.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-field { flex: 2 1 260px; }

.date-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 0 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.date-field {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.date-field span {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.date-field select {
  min-width: 200px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-size: 1.15rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.date-field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.nav-btn {
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-btn:disabled { opacity: 0.3; cursor: not-allowed; box-shadow: none; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chip {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.chip:hover { border-color: var(--accent); }

.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.stats {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 4px 0 12px;
  min-height: 1.2em;
}

.content { display: flex; flex-direction: column; gap: 28px; }

.day-group { display: flex; flex-direction: column; gap: 18px; }

.day-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.day-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.01em;
}

.section { display: flex; flex-direction: column; gap: 12px; }

.section-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.card:hover { transform: translateY(-1px); }

.card-title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.card-title a {
  color: var(--text);
  text-decoration: none;
}

.card-title a:hover { color: var(--accent); text-decoration: underline; }

.tldr {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  padding: 8px 10px;
  background: var(--surface-2);
  border-radius: 8px;
}

.points { font-size: 0.95rem; color: var(--text); }
.why { font-size: 0.92rem; }
.meta { margin-top: 6px; }

.points {
  margin: 0 0 10px;
  padding-left: 18px;
}

.points li { margin: 4px 0; }

.why {
  margin: 0 0 10px;
  padding: 10px 12px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--badge);
  color: var(--muted);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.78rem;
  text-decoration: none;
}

.badge.source { color: var(--text); font-weight: 600; }
.badge.warn { background: #fef3c7; color: #92400e; }
@media (prefers-color-scheme: dark) {
  .badge.warn { background: #3b2f16; color: #fbbf24; }
}
.badge.link { color: var(--accent); }

.empty {
  text-align: center;
  padding: 48px 20px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
}

.empty h2 { color: var(--text); margin-top: 0; }
.empty pre {
  display: inline-block;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
}

.site-footer {
  padding: 32px 0 40px;
  color: var(--muted);
  font-size: 0.85rem;
}


@media (max-width: 640px) {
  .site-header h1 { font-size: 1.5rem; }
  .control-row { flex-direction: column; align-items: stretch; }
  .field { flex: 1 1 auto; }
}