* { box-sizing: border-box; }
:root {
  --bg: #0f172a; --card: #1e293b; --border: #334155;
  --text: #e2e8f0; --muted: #94a3b8; --accent: #22c55e; --red: #ef4444;
}
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); }
main { max-width: 860px; margin: 0 auto; padding: 16px; padding-bottom: 90px; }
a { color: #60a5fa; text-decoration: none; }
h1 { font-size: 1.4rem; } h2 { font-size: 1.1rem; margin-top: 28px; }

nav { display: flex; gap: 14px; align-items: center; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--border); flex-wrap: wrap; position: sticky; top: 0; z-index: 10; }
nav a { color: var(--text); font-weight: 500; }
nav .brand { font-weight: 700; }
nav .logout { margin-left: auto; }
nav button { background: none; border: 1px solid var(--border); color: var(--muted); border-radius: 6px; padding: 4px 10px; cursor: pointer; }

.auth-box { max-width: 360px; margin: 60px auto; background: var(--card); padding: 24px; border-radius: 12px; border: 1px solid var(--border); }
.auth-box input { display: block; width: 100%; margin: 8px 0; padding: 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }

.btn-primary { background: var(--accent); color: #052e16; font-weight: 700; border: none; border-radius: 8px; padding: 10px 18px; cursor: pointer; font-size: 1rem; }
.sticky-save { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); box-shadow: 0 4px 16px rgba(0,0,0,.5); padding: 12px 40px; }

.week-nav { display: flex; align-items: center; gap: 16px; }
.week-nav a { font-size: 1.6rem; padding: 0 10px; }

.game { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; margin: 10px 0; }
.game.locked { opacity: .75; }
.game-meta { display: flex; gap: 8px; align-items: center; font-size: .8rem; color: var(--muted); margin-bottom: 6px; flex-wrap: wrap; }
.badge { background: var(--border); border-radius: 4px; padding: 1px 6px; font-size: .72rem; font-weight: 700; }
.badge.final { background: #475569; color: #fff; }
.grade-win .badge.grade, td.grade-win { background: rgba(34,197,94,.25); color: #4ade80; }
.grade-loss .badge.grade, td.grade-loss { background: rgba(239,68,68,.2); color: #f87171; }
.grade-push .badge.grade, td.grade-push { background: rgba(234,179,8,.2); color: #facc15; }

.teams { display: flex; align-items: stretch; gap: 8px; }
.at { align-self: center; color: var(--muted); }
.team { flex: 1; display: flex; justify-content: space-between; align-items: center; gap: 6px; border: 2px solid var(--border); border-radius: 8px; padding: 10px; cursor: pointer; }
.team input { display: none; }
.team:has(input:checked) { border-color: var(--accent); background: rgba(34,197,94,.12); }
.game.grade-loss .team:has(input:checked) { border-color: var(--red); background: rgba(239,68,68,.15); }
.game.grade-push .team:has(input:checked) { border-color: #eab308; background: rgba(234,179,8,.15); }
.team-name { font-weight: 600; font-size: .92rem; }
.spread { color: var(--muted); font-variant-numeric: tabular-nums; }

.tiebreaker input { width: 80px; margin-left: 8px; padding: 8px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .88rem; }
th, td { border: 1px solid var(--border); padding: 7px 9px; text-align: left; white-space: nowrap; }
th { background: var(--card); }
.game-cell .muted { display: block; font-size: .75rem; }

table.centered th, table.centered td { text-align: center; }
table.striped tbody tr:nth-child(odd) { background: rgba(255,255,255,.04); }

/* Weekly picks matrix: compact, fits the screen without horizontal scrolling */
.matrix { font-size: .8rem; }
.matrix th, .matrix td { padding: 4px 5px; text-align: center; }
.matrix th:first-child, .matrix td:first-child { text-align: left; }
.matrix .game-cell { white-space: normal; min-width: 130px; }
.matrix .game-cell .muted { font-size: .68rem; }
.totals td { background: var(--card); }
.neg { color: var(--red); }
.mono { font-family: monospace; font-size: .75rem; white-space: normal; word-break: break-all; }

.flash { background: rgba(34,197,94,.15); border: 1px solid var(--accent); padding: 8px 12px; border-radius: 8px; }
.error { color: var(--red); }
.muted { color: var(--muted); }
.winners { background: var(--card); border: 1px solid var(--accent); border-radius: 10px; padding: 10px 14px; margin-bottom: 14px; }

.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px; text-align: center; }
.card .num { font-size: 1.5rem; font-weight: 700; }
.card .lbl { color: var(--muted); font-size: .8rem; }

.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 10px 0; }
.inline-form input, .inline-form select, .admin-game input { padding: 8px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.inline-form button, .admin-game button, .admin-actions button { padding: 8px 14px; border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--text); cursor: pointer; }
.admin-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.admin-actions .btn-primary { border: none; }
.admin-game { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; margin: 8px 0; font-size: .85rem; }
.admin-game .game-title { flex-basis: 100%; font-weight: 600; }
.admin-game input[type=number] { width: 70px; }
select { padding: 8px; border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--text); }

/* Tablets */
@media (max-width: 820px) {
  .matrix { font-size: .72rem; }
  .matrix th, .matrix td { padding: 3px 4px; }
}

/* Phones */
@media (max-width: 480px) {
  main { padding: 10px; padding-bottom: 90px; }
  nav { gap: 9px; padding: 8px 10px; font-size: .9rem; }
  h1 { font-size: 1.15rem; }
  .matrix { font-size: .62rem; }
  .matrix th, .matrix td { padding: 2px 3px; }
  .matrix .game-cell { min-width: 90px; }
  .matrix .game-cell .muted { display: none; } /* spread shown in each pick cell anyway */
  .team-name { font-size: .8rem; }
  table { font-size: .8rem; }
}