:root{color-scheme:light;--bg: #f5f2ea;--panel: #ffffff;--ink: #1e2930;--muted: #69747c;--line: #d9dedb;--accent: #166c63;--accent-dark: #0f504a;--good: #1c7c46;--bad: #b3392f;--warn: #7a5b13;--shadow: 0 12px 30px rgba(33, 41, 48, .12)}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg)}main{width:min(920px,calc(100% - 32px));margin:0 auto;padding:32px 0}header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}h1{margin:0 0 6px;font-size:32px;line-height:1.1}p{margin:0}.muted{color:var(--muted)}.scoreboard{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.pill{min-width:100px;padding:9px 12px;border:1px solid var(--line);border-radius:8px;background:#ffffffa3;text-align:center;font-weight:700}.pill span{display:block;margin-top:3px;color:var(--muted);font-size:12px;font-weight:500}.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:18px;align-items:start}.table,.side{border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.table{padding:22px}.side{padding:18px}.round-label{margin-bottom:20px;color:var(--muted);font-size:14px;font-weight:700;text-transform:uppercase}.hands{display:grid;gap:20px}.hand-block{display:grid;gap:10px}.hand-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.hand-title{font-size:15px;font-weight:700;color:var(--muted);text-transform:uppercase}.hand-total{font-weight:700}.cards{display:flex;gap:10px;flex-wrap:wrap}.card{width:72px;height:100px;display:grid;place-items:center;border:1px solid #cfd6d2;border-radius:8px;background:linear-gradient(145deg,#fff,#f1f4f2);box-shadow:0 5px 12px #1721261a;font-size:30px;font-weight:800}.question{margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.question h2{margin:0 0 8px;font-size:22px;line-height:1.2}.actions{display:grid;gap:10px;margin-top:18px}button{min-height:46px;border:1px solid var(--accent);border-radius:8px;background:var(--accent);color:#fff;cursor:pointer;font:inherit;font-weight:700}button:hover{background:var(--accent-dark);border-color:var(--accent-dark)}button:focus-visible{outline:3px solid rgba(22,108,99,.35);outline-offset:3px}button.secondary{background:#fff;color:var(--accent)}button.secondary:hover{background:#ecf5f3}button[disabled]{cursor:not-allowed;opacity:.58}.answer-button{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 14px}.key{display:inline-grid;min-width:28px;height:28px;place-items:center;border:1px solid rgba(255,255,255,.7);border-radius:6px;font-size:13px}.feedback{min-height:82px;margin-top:16px;padding:13px;border:1px solid var(--line);border-radius:8px;background:#fafbf9;line-height:1.4}.feedback.correct{border-color:#1c7c4673;background:#edf8f1;color:var(--good)}.feedback.wrong{border-color:#b3392f73;background:#fff0ee;color:var(--bad)}.side h2{margin:0 0 12px;font-size:18px}.side>button{width:100%}.side>button+button{margin-top:10px}.shortcuts{display:grid;gap:8px;margin:14px 0 18px;color:var(--muted);font-size:14px}.shortcut-row{display:flex;justify-content:space-between;gap:12px}.kbd{min-width:32px;padding:3px 7px;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;background:#fff;color:var(--ink);text-align:center;font-weight:700}.result{display:none;margin-top:18px;padding:14px;border:1px solid rgba(122,91,19,.3);border-radius:8px;background:#fff7dc;color:var(--warn);font-weight:700;line-height:1.35}.result.visible{display:block}.why-dialog{width:min(520px,calc(100% - 32px));padding:0;border:0;border-radius:8px;box-shadow:var(--shadow)}.why-dialog::backdrop{background:#1e29306b}.why-panel{display:grid;gap:12px;padding:20px;border:1px solid var(--line);background:var(--panel);color:var(--ink)}.why-panel h2{margin:0;font-size:22px}.why-text{display:grid;gap:0;line-height:1.45}.why-section{display:grid;gap:10px;padding:12px 0;border-top:1px solid var(--line)}.why-section:first-child{padding-top:0;border-top:0}.why-row{display:grid;grid-template-columns:130px minmax(0,1fr);gap:12px;align-items:baseline}.why-label{color:var(--muted);font-size:13px;font-weight:700;text-transform:uppercase}.why-value{font-weight:600}.why-value.strong{color:var(--accent-dark);font-weight:800}.why-callout{padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fafbf9}.why-callout strong{display:block;margin-bottom:4px;color:var(--accent-dark)}.why-action-list{display:grid;grid-template-columns:96px minmax(0,1fr);gap:6px 12px;margin:6px 0 0}.why-action-list dt{color:var(--accent-dark);font-weight:800}.why-action-list dd{margin:0}.why-text h2,.why-text h3,.why-text h4{margin:10px 0 0;font-size:17px}.why-text ul{margin:0;padding-left:22px}.why-text li{margin:4px 0}.why-footnote{padding-top:12px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}@media (max-width: 760px){main{width:min(100% - 22px,920px);padding:18px 0}header,.layout{display:grid;grid-template-columns:1fr}.scoreboard{justify-content:stretch}.pill{flex:1}.table,.side{padding:16px}.card{width:62px;height:88px;font-size:26px}.why-row{grid-template-columns:1fr;gap:3px}.why-action-list{grid-template-columns:1fr;gap:2px}.why-action-list dd{margin-bottom:8px}}