:root {
  --bg: #12160f;
  --bg-elevated: #1a2118;
  --surface: rgba(232, 220, 196, 0.04);
  --border: rgba(232, 220, 196, 0.12);
  --text: #f2ebe0;
  --text-secondary: #c4b8a4;
  --text-muted: #8a7f6e;
  --accent: #d4a24c;
  --accent-soft: rgba(212, 162, 76, 0.16);
  --accent-2: #7f9e6e;
  --danger: #c97b6a;
  --radius: 16px;
  --font-display: "Fraunces", "Songti SC", "Noto Serif SC", Georgia, serif;
  --font-body: "IBM Plex Sans", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(212, 162, 76, 0.12), transparent 60%),
    radial-gradient(700px 420px at 90% 0%, rgba(127, 158, 110, 0.1), transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.65;
}

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  padding: 72px 0 36px;
  border-bottom: 1px solid var(--border);
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.hero-kicker::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.1;
  max-width: 12ch;
  margin-bottom: 16px;
}

.hero p {
  max-width: 42ch;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 36px 0 0;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0 8px;
}

.search {
  flex: 1;
  min-width: 220px;
  max-width: 420px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 18px;
  color: var(--text);
  font: inherit;
  outline: none;
}

.search:focus {
  border-color: rgba(212, 162, 76, 0.55);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

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

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-chip {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 7px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.tag-chip:hover,
.tag-chip.active {
  background: var(--accent-soft);
  border-color: rgba(212, 162, 76, 0.45);
  color: var(--text);
}

.timeline {
  padding: 20px 0 80px;
  display: grid;
  gap: 16px;
}

.week-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent 40%), var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.week-card:hover {
  transform: translateY(-2px);
  border-color: rgba(212, 162, 76, 0.35);
}

.week-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.week-id {
  display: block;
  font-size: 15px;
  color: var(--accent);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.week-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.25;
  margin: 4px 0 10px;
}

.week-summary {
  color: var(--text-secondary);
  font-size: 0.98rem;
  margin-bottom: 14px;
}

.week-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.week-tags span {
  font-size: 12px;
  color: var(--accent-2);
  background: rgba(127, 158, 110, 0.12);
  border: 1px solid rgba(127, 158, 110, 0.22);
  border-radius: 999px;
  padding: 4px 10px;
}

.week-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  transition: background 0.2s, border-color 0.2s;
}

.btn:hover {
  background: rgba(255,255,255,0.04);
  border-color: rgba(232, 220, 196, 0.28);
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #1a1408;
  font-weight: 600;
}

.btn.primary:hover {
  background: #e0b25d;
  border-color: #e0b25d;
}

.empty {
  text-align: center;
  padding: 64px 20px;
  color: var(--text-muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 48px;
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

footer a { color: var(--text-secondary); }
footer a:hover { color: var(--accent); }

@media (max-width: 720px) {
  .hero { padding-top: 48px; }
  .stats { grid-template-columns: 1fr; }
  .week-card { grid-template-columns: 1fr; gap: 8px; }
}