@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('../fonts/inter-var.woff2') format('woff2-variations'),
       url('../fonts/inter-var.woff2') format('woff2');
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url('../fonts/space-grotesk-var.woff2') format('woff2-variations'),
       url('../fonts/space-grotesk-var.woff2') format('woff2');
}

/* ---------- base ---------- */
:root {
  color-scheme: dark;
  --bg: #060d15;
  --bg2: #0b1725;
  --card: rgba(255, 255, 255, .08);
  --ink: #e8f0f7;
  --muted: #9fb2c2;
  --line: rgba(255, 255, 255, .16);
  --field: rgba(255, 255, 255, .08);
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --accent-light: #7fb0ff;
  --home: #2f6fed;        /* home win / "H" */
  --draw: #97a3ae;        /* draw / "D" */
  --away: #e5484d;        /* away win / "A" */
  --good: #2fd58b;
  --bad: #ff7b8a;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 500px at 50% -100px, #1d3a5c 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 84px 16px 48px; }

/* ---------- display type (headings & data figures) ---------- */
h1, h2, h3, h4,
.nav-brand, .stat-num, .compare-cell.num, .calib-vals, .miss-score {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- top nav (shared across SportMath pages) ---------- */
.topnav {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 55;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .18);
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  white-space: nowrap;
}
.nav-brand {
  padding: 6px 12px;
  font-weight: 800;
  font-size: .92rem;
  letter-spacing: .02em;
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
}
.nav-brand:hover { background: rgba(255, 255, 255, .12); }
.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  font-size: .88rem;
  font-weight: 600;
  color: #b9c7d4;
  text-decoration: none;
  border-radius: 999px;
}
a.nav-item:hover { color: #fff; background: rgba(255, 255, 255, .12); }
.nav-item.active { color: #fff; background: rgba(59, 130, 246, .35); }

/* ---------- header ---------- */
.hero { text-align: center; color: #fff; margin-bottom: 24px; }
.hero h1 { margin: 0 0 8px; font-size: 2rem; letter-spacing: .3px; }
.tagline { margin: 0 auto; max-width: 620px; color: #b9c7d4; font-size: .95rem; line-height: 1.5; }
.method-note {
  margin: 14px auto 0;
  max-width: 620px;
  padding: 10px 14px;
  background: rgba(59, 130, 246, .1);
  border: 1px solid rgba(59, 130, 246, .3);
  border-radius: 8px;
  color: var(--accent-light);
  font-size: .85rem;
  line-height: 1.5;
}

/* ---------- cards ---------- */
.card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .3);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  margin-bottom: 20px;
}
.card h3 {
  margin: 0 0 6px;
  font-size: .95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.card-hint { margin: 0 0 18px; color: var(--muted); font-size: .84rem; line-height: 1.5; }

/* ---------- sport section header ---------- */
.sport-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.sport-head h2 { margin: 0; font-size: 1.35rem; }
.sport-meta { color: var(--muted); font-size: .82rem; }

/* ---------- stat tiles ---------- */
.stat-tiles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 18px 0 22px;
}
.stat-tile {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 14px;
  text-align: center;
}
.stat-label {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  margin-bottom: 8px;
}
.stat-num { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-vs { margin-top: 6px; font-size: .78rem; color: var(--muted); }
.stat-vs b { color: var(--good); }
.stat-vs.worse b { color: var(--bad); }

/* ---------- model comparison table ---------- */
.compare-table { display: flex; flex-direction: column; gap: 2px; margin-top: 8px; }
.compare-row {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, .8fr);
  gap: 8px;
  align-items: center;
  padding: 8px 4px;
  border-bottom: 1px solid var(--line);
  font-size: .88rem;
}
.compare-row.head {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--line);
}
.compare-row.primary { background: rgba(59, 130, 246, .1); border-radius: 8px; }
.compare-cell.num { text-align: right; font-variant-numeric: tabular-nums; }
.compare-model { display: flex; align-items: center; gap: 6px; }
.tag-live {
  font-size: .64rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: rgba(47, 213, 139, .18);
  color: var(--good);
  border-radius: 999px;
  padding: 2px 7px;
}
.segment-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 4px; }
.segment-tab {
  border: 1px solid var(--line);
  background: var(--field);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}
.segment-tab.active { border-color: var(--accent); color: var(--accent-light); background: rgba(59, 130, 246, .18); }

/* ---------- calibration ---------- */
.calib-legend { display: flex; gap: 18px; margin-bottom: 14px; font-size: .82rem; color: var(--muted); }
.calib-legend .dot { width: 10px; height: 10px; border-radius: 3px; display: inline-block; margin-right: 6px; }
.calib-legend .dot.predicted { background: var(--accent); }
.calib-legend .dot.observed { background: var(--good); }
.calib-row { display: grid; grid-template-columns: 82px 1fr 110px; align-items: center; gap: 12px; margin-bottom: 12px; }
.calib-bin { font-size: .82rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.calib-bars { display: flex; flex-direction: column; gap: 4px; }
.calib-bar { background: rgba(255, 255, 255, .1); border-radius: 5px; height: 10px; overflow: hidden; }
.calib-bar span { display: block; height: 100%; border-radius: 5px; transition: width .6s cubic-bezier(.2,.8,.2,1); }
.calib-bar.predicted span { background: var(--accent); }
.calib-bar.observed span { background: var(--good); }
.calib-vals { font-size: .8rem; color: var(--ink); text-align: right; font-variant-numeric: tabular-nums; }
.calib-n { color: var(--muted); font-size: .72rem; }

/* ---------- hardest misses ---------- */
.miss-list { display: flex; flex-direction: column; gap: 10px; }
.miss-card { border: 1px solid var(--line); border-radius: 11px; padding: 12px 14px; }
.miss-top { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.miss-comp {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent-light);
}
.miss-date { font-size: .76rem; color: var(--muted); }
.miss-row { display: flex; align-items: center; gap: 10px; font-size: 1rem; margin-bottom: 8px; }
.miss-team { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.miss-team.away { text-align: right; }
.miss-score { font-variant-numeric: tabular-nums; font-weight: 700; flex: none; }
.miss-probs { display: flex; height: 22px; border-radius: 6px; overflow: hidden; margin-bottom: 6px; }
.miss-probs span { display: flex; align-items: center; justify-content: center; font-size: .7rem; font-weight: 700; color: #fff; }
.miss-probs .h { background: var(--home); }
.miss-probs .d { background: var(--draw); }
.miss-probs .a { background: var(--away); }
.miss-caption { margin: 0; font-size: .78rem; color: var(--muted); }
.miss-caption b { color: var(--ink); }

/* ---------- coming soon ---------- */
.soon-card { text-align: center; color: var(--muted); font-size: .9rem; padding: 28px 20px; }
.soon-sports { display: flex; justify-content: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.soon-chip {
  font-size: .78rem;
  font-weight: 700;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  color: var(--muted);
}

.foot { text-align: center; color: #7e93a6; font-size: .82rem; margin-top: 8px; }

/* ---------- info button + popup (shared with the rest of the site) ---------- */
.info-fab {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 60;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .35);
  background: rgba(255, 255, 255, .12);
  color: #fff;
  font: italic 700 1.1rem/1 Georgia, "Times New Roman", serif;
  cursor: pointer;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: background .15s, transform .15s;
}
.info-fab:hover { background: rgba(255, 255, 255, .28); transform: scale(1.07); }
.info-fab::before { content: "i"; }
.donate-fab {
  left: 18px;
  right: auto;
  font: 700 1rem/1 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #ff7b8a;
}
.donate-fab::before { content: "\2665"; }

.info-overlay {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(8, 18, 28, .55);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadein .2s ease;
}
@keyframes fadein { from { opacity: 0; } }
@keyframes fadeup { from { opacity: 0; transform: translateY(10px); } }
.info-overlay[hidden] { display: none; }

.info-modal {
  color: var(--ink);
  position: relative;
  max-width: 600px;
  max-height: 82vh;
  overflow-y: auto;
  background: rgba(16, 30, 46, .88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--radius);
  padding: 28px 30px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
  animation: fadeup .25s ease;
}
.info-modal h2 { margin: 0 0 12px; font-size: 1.3rem; padding-right: 28px; }
.info-modal h3 {
  margin: 22px 0 4px;
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.info-body { margin: 0; line-height: 1.62; font-size: .95rem; }
.glossary { margin: 0; }
.glossary dt { font-weight: 700; margin-top: 13px; font-size: .93rem; }
.glossary dd { margin: 3px 0 0; font-size: .9rem; line-height: 1.5; color: #b6c5d2; }

.info-close {
  position: absolute;
  top: 12px;
  right: 14px;
  border: none;
  background: none;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 6px;
}
.info-close:hover { color: var(--ink); }

.donate-modal { max-width: 480px; }
.donate-option { margin-top: 18px; }
.donate-label {
  display: block;
  margin-bottom: 7px;
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.donate-row { display: flex; align-items: stretch; gap: 8px; flex-wrap: wrap; }
.donate-row code {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, .08);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 11px;
  font-size: .82rem;
  word-break: break-all;
}
.copy-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--field);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: border-color .15s, color .15s, background .15s;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent-light); }
.copy-btn.copied { border-color: var(--accent); background: var(--accent); color: #fff; }

/* ---------- responsive ---------- */
@media (max-width: 640px) {
  .hero h1 { font-size: 1.5rem; }
  .info-fab { width: 36px; height: 36px; top: 12px; right: 12px; }
  .donate-fab { left: 12px; right: auto; }
  .wrap { padding-top: 70px; }
  .topnav { top: 12px; padding: 4px 6px; }
  .nav-txt { display: none; }
  .nav-brand { font-size: .85rem; padding: 6px 9px; }
  .nav-item { padding: 6px 9px; }
  .card { padding: 18px 14px; }
  .stat-tiles { grid-template-columns: repeat(2, 1fr); }
  .compare-row { grid-template-columns: 1.4fr repeat(3, .7fr); font-size: .8rem; }
  .calib-row { grid-template-columns: 66px 1fr 90px; gap: 8px; }
  .info-overlay { padding: 12px; }
  .info-modal { padding: 20px 18px; max-height: 88vh; }
}

@media (hover: none) {
  body { background-attachment: scroll; }
}