:root{--tile-w:30px;--tile-h:44px;--touch:44px;--ink:#16281f;--muted:#5b6b62;--line:#cfdad3;--paper:#fbfdfb;--felt:#0f5132;--felt-soft:#e6f1ea;--accent:#1d5fbf;--warn:#8a4b00;--bad:#9b1c1c;--good:#0f6b3a;--radius:10px;--gap:8px;font-family:system-ui,-apple-system,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#root{background:var(--paper);min-height:100%;color:var(--ink);margin:0;padding:0}body{font-size:16px;line-height:1.5;overflow-x:hidden}button{font:inherit;color:inherit;cursor:pointer}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.app{max-width:1280px;margin:0 auto;padding:12px 12px 96px}.app__header{align-items:baseline;gap:var(--gap);border-bottom:1px solid var(--line);flex-wrap:wrap;padding-bottom:8px;display:flex}.app__title{margin:0;font-size:18px;font-weight:700}.rule-pack-badge{border:1px solid var(--felt);color:var(--felt);background:var(--felt-soft);border-radius:999px;padding:2px 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var(--line);border-radius:var(--radius);background:#fff;flex-wrap:wrap;align-items:center;gap:6px;padding:8px;display:flex}.requirement{border:1px solid var(--line);border-radius:var(--radius);background:#fff;gap:8px;padding:12px;display:grid}.requirement__prompt{margin:0;font-weight:600}.options{gap:6px;display:grid}.option{min-height:var(--touch);border:1px solid var(--line);border-radius:var(--radius);text-align:left;background:#fff;align-items:center;gap:10px;width:100%;padding:8px 12px;display:flex}.option[aria-pressed=true],.option[aria-checked=true]{border-color:var(--accent);background:#eef4ff;border-width:2px}.option__mark{min-width:1.5em;font-weight:700}.option--highlight{box-shadow:inset 4px 0 0 var(--warn)}.hint{border-left:6px solid var(--warn);border-radius:var(--radius);background:#fff8ef;padding:8px 12px;font-size:14px}.assessment-notice{border-left:6px solid var(--accent);border-radius:var(--radius);background:#eef4ff;padding:8px 12px;font-size:14px}.feedback{border-radius:var(--radius);border:1px solid var(--line);background:#fff;border-left-width:6px;gap:6px;padding:10px 12px;display:grid}.feedback--correct{border-left-color:var(--good)}.feedback--wrong{border-left-color:var(--bad)}.feedback__mark{font-weight:700}.table{gap:10px;display:grid}.opponents{gap:8px;display:grid}.opponent{border:1px solid var(--line);border-radius:var(--radius);background:#fff;gap:4px;padding:8px 10px;font-size:13px;display:grid}.opponent__head{flex-wrap:wrap;align-items:center;gap:8px;font-weight:600;display:flex}.opponent__river{flex-wrap:wrap;gap:3px;display:flex}.hand{border:1px solid var(--line);border-radius:var(--radius);scrollbar-width:thin;background:#fff;gap:4px;padding:8px 4px;display:flex;overflow-x:auto}.hand__scroll-hint{color:var(--warn);margin:0;font-size:12px}.actions{gap:6px;display:grid}.action-option{min-height:var(--touch);border:1px solid var(--line);border-radius:var(--radius);text-align:left;background:#fff;align-items:center;gap:8px;width:100%;padding:8px 12px;display:flex}.action-option[aria-pressed=true]{border-color:var(--accent);background:#eef4ff;border-width:2px}.preview{border:1px solid var(--accent);border-radius:var(--radius);background:#eef4ff;border-left-width:6px;gap:8px;padding:10px 12px;display:grid}.coach{border:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;background:#fff;max-height:40vh;padding:8px 10px;position:sticky;bottom:0;overflow-y:auto}.coach--collapsed{max-height:none;overflow:visible}.coach__toggle{width:100%;min-height:var(--touch);text-align:left;background:0 0;border:none;font-weight:600}.coach__list{gap:6px;margin:6px 0 0;padding:0;font-size:14px;list-style:none;display:grid}.coach__item{border-left:3px solid 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.tile__suit{color:#1d5fbf}.tile--small{width:22px;min-width:22px;height:30px;min-height:30px}.tile--small .tile__rank{font-size:11px}.tile--small .tile__suit{font-size:8px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=420px){:root{--tile-w:24px}.app{padding-left:8px;padding-right:8px}.hand{gap:0;padding:8px 2px}}@media (width>=700px){.app{padding:16px 20px 96px}.table{grid-template-columns:minmax(0,1fr) minmax(240px,320px);grid-template-areas:"opponents coach""hand coach""actions coach";align-items:start}.table__opponents{grid-area:opponents}.table__hand{grid-area:hand}.table__actions{grid-area:actions}.table__coach{grid-area:coach;max-height:none;position:static}.opponents{grid-template-columns:repeat(3,minmax(0,1fr))}.map__list{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.options{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}}@media (width>=1024px){:root{--tile-w:36px;--tile-h:52px}}@media (height<=430px){.app{padding-bottom:60px}.coach{max-height:30vh}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}