:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-alt: #f0f2f5;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-muted: #5b6270;
  --accent: #1d4ed8;
  --accent-soft: #dbe6fe;
  --home-color: #1d4ed8;
  --away-color: #dc6803;
  --good: #15803d;
  --bad: #b91c1c;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216;
    --surface: #171b21;
    --surface-alt: #1e232b;
    --border: #2a2f38;
    --text: #e9ebef;
    --text-muted: #9aa2b1;
    --accent: #6c96ff;
    --accent-soft: #1c2b52;
    --home-color: #6c96ff;
    --away-color: #ffb066;
    --good: #4ade80;
    --bad: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0f1216;
  --surface: #171b21;
  --surface-alt: #1e232b;
  --border: #2a2f38;
  --text: #e9ebef;
  --text-muted: #9aa2b1;
  --accent: #6c96ff;
  --accent-soft: #1c2b52;
  --home-color: #6c96ff;
  --away-color: #ffb066;
  --good: #4ade80;
  --bad: #f87171;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", Roboto, sans-serif;
  line-height: 1.6;
  margin: 0;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding-inline: 20px;
}

.hero {
  background: linear-gradient(135deg, var(--accent) 0%, #0b2a91 100%);
  color: #fff;
  padding-block: 48px 40px;
}

.hero .wrap { max-width: 980px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.85;
  margin: 0 0 8px;
}

.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  margin: 0 0 14px;
}

.hero .lede {
  max-width: 62ch;
  opacity: 0.92;
  margin: 0 0 16px;
}

.updated {
  font-size: 0.85rem;
  opacity: 0.75;
  margin: 0;
}

main.wrap {
  padding-block: 28px 12px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px clamp(16px, 4vw, 28px);
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 6px;
  font-size: 1.25rem;
}

.section-note {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---- predictor ---- */

.predictor-row {
  display: flex;
  align-items: end;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.predictor-row label, .predictor-rest label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.at-symbol {
  font-weight: 700;
  color: var(--text-muted);
  padding-bottom: 8px;
}

select, input[type="number"] {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: 0.95rem;
  min-width: 160px;
}

input[type="number"] { min-width: 90px; }

.predictor-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 14px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--text-muted);
  cursor: pointer;
}

.predictor-rest {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

button#predict-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 9px;
  padding: 11px 22px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

button#predict-btn:hover { filter: brightness(1.08); }

.predictor-result {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
}

/* ---- prob bar (shared by predictor + game cards) ---- */

.prob-bar {
  display: flex;
  height: 26px;
  border-radius: 8px;
  overflow: hidden;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  margin: 10px 0 4px;
}
.prob-bar .home-seg { background: var(--home-color); display: flex; align-items: center; justify-content: center; }
.prob-bar .away-seg { background: var(--away-color); display: flex; align-items: center; justify-content: center; }

.result-teams {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.result-meta {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  margin: 2px 4px 2px 0;
}

/* ---- games grid ---- */

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.game-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  background: var(--surface-alt);
}

.game-card .kickoff {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
  line-height: 1.5;
}

.game-card .kickoff-tw {
  font-weight: 600;
  color: var(--text-muted);
  text-transform: none;
}

.game-card .matchup {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-weight: 700;
  margin-bottom: 2px;
}

.game-card .matchup-zh {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.game-card .score-line {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 6px 0 8px;
}

.game-card .spread-line {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.week-picker {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

/* ---- tables ---- */

.rankings-table-wrap, .perf-table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th { color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }

.rating-bar-cell { width: 100%; min-width: 120px; }
.rating-bar-track {
  background: var(--border);
  border-radius: 999px;
  height: 8px;
  width: 100%;
  overflow: hidden;
}
.rating-bar-fill {
  background: var(--accent);
  height: 100%;
}

/* ---- methodology ---- */

.factor-list {
  padding-left: 1.2em;
  margin: 0 0 14px;
}
.factor-list li { margin-bottom: 8px; }

footer.wrap {
  padding-block: 24px 40px;
  color: var(--text-muted);
  font-size: 0.82rem;
}

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

@media (max-width: 480px) {
  .predictor-row { flex-direction: column; align-items: stretch; }
  .at-symbol { display: none; }
}