*,:before,:after{box-sizing:border-box}:root{--bg:#0f1115;--surface:#1a1d24;--surface-2:#242831;--border:#2e323c;--text:#e8eaed;--text-dim:#9ba1ad;--accent:#4f9eff;--accent-hover:#3b8ff5;--danger:#ef4444;--success:#22c55e;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,Pretendard,Apple SD Gothic Neo,Segoe UI,Roboto,sans-serif}html,body,#root{min-height:100vh;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-size:16px;line-height:1.5}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}input,select{font-family:inherit;font-size:inherit}a{color:var(--accent)}.page{flex-direction:column;align-items:stretch;gap:28px;max-width:600px;margin:0 auto;padding:48px 20px 80px;display:flex}.page-header{text-align:center}.page-header h1{letter-spacing:-.02em;margin:0 0 8px;font-size:32px}.subtitle{color:var(--text-dim);margin:0;font-size:15px}.arena{background:var(--surface);border:1px solid var(--border);border-radius:16px;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;padding:32px 16px;display:grid}.player-side{flex-direction:column;align-items:center;gap:10px;display:flex}.player-label{color:var(--text-dim);letter-spacing:.1em;font-size:12px;font-weight:700}.hand{-webkit-user-select:none;user-select:none;font-size:64px;line-height:1}.cpu .hand{transform:scaleX(-1)}.hand.shake{animation:.18s ease-in-out infinite alternate shake}@keyframes shake{0%{transform:translateY(-4px)scaleX(-1)}to{transform:translateY(4px)scaleX(-1)}}.vs{flex-direction:column;align-items:center;min-width:80px;display:flex}.vs-text{color:var(--text-dim);letter-spacing:.05em;font-size:22px;font-weight:700}.result-badge{white-space:nowrap;border-radius:999px;padding:6px 14px;font-size:14px;font-weight:700}.result-badge.win{background:var(--success);color:#06200f}.result-badge.lose{background:var(--danger);color:#fff}.result-badge.draw{background:var(--surface-2);color:var(--text-dim)}.choices{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.choice-btn{background:var(--surface);border:1px solid var(--border);border-radius:14px;flex-direction:column;align-items:center;gap:4px;padding:18px 12px;transition:transform .1s,border-color .15s,background .15s;display:flex}.choice-btn:hover:not(:disabled){border-color:var(--accent);background:var(--surface-2)}.choice-btn:active:not(:disabled){transform:scale(.96)}.choice-btn:disabled{opacity:.5;cursor:not-allowed}.choice-emoji{font-size:36px;line-height:1}.choice-label{color:var(--text-dim);font-size:14px;font-weight:600}.scoreboard{background:var(--surface);border:1px solid var(--border);border-radius:14px;grid-template-columns:repeat(4,1fr);gap:8px;padding:14px;display:grid}.score-item{border-radius:8px;flex-direction:column;align-items:center;padding:8px 4px;display:flex}.score-label{color:var(--text-dim);font-size:12px;font-weight:600}.score-num{font-variant-numeric:tabular-nums;margin-top:2px;font-size:24px;font-weight:700}.score-item.win .score-num{color:var(--success)}.score-item.lose .score-num{color:var(--danger)}.score-item.draw .score-num{color:var(--text-dim)}.reset-btn{color:var(--text-dim);border:1px solid var(--border);background:0 0;border-radius:8px;align-self:center;padding:8px 24px;font-size:14px;transition:background .15s,color .15s,border-color .15s}.reset-btn:hover:not(:disabled){background:var(--surface);color:var(--text);border-color:var(--text-dim)}.reset-btn:disabled{opacity:.4;cursor:not-allowed}@media (width<=540px){.page-header h1{font-size:26px}.hand{font-size:52px}.choice-emoji{font-size:32px}}