:root{--bg: #0e1a21;--paper: #ffffff;--ink: #1c2a33;--muted: #56656d;--accent: #1f5c7a;--accent-soft: #e4eef2;--deep: #12384b;--bad: #9b2f2f;--good: #2f6b46;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:Noto Sans JP,Hiragino Sans,Yu Gothic,Meiryo,system-ui,sans-serif;color:var(--ink);background:var(--bg);line-break:strict;overflow-wrap:break-word;-webkit-text-size-adjust:100%}.page{min-height:100%;padding:calc(16px + var(--safe-top)) 16px calc(16px + var(--safe-bottom));background:#f7f8f6;display:flex;flex-direction:column;gap:16px}.page h1{font-size:22px;margin:0;word-break:auto-phrase;text-wrap:balance}.page p{margin:0;line-height:1.7}.card{background:var(--paper);border:1px solid #d6ddda;border-radius:12px;padding:16px;display:grid;gap:10px}.btn{appearance:none;border:0;border-radius:12px;padding:16px;font-size:18px;font-weight:700;background:var(--accent);color:#fff;width:100%;min-height:56px;cursor:pointer}.btn.secondary{background:var(--accent-soft);color:var(--accent)}.btn.danger{background:var(--bad)}.btn:disabled{opacity:.5}.input{font-size:18px;padding:14px;border:1px solid #c9d2cf;border-radius:10px;width:100%}.note{color:var(--muted);font-size:14px}.err{color:var(--bad);font-size:14px}.call{position:fixed;inset:0;background:#000;color:#fff;display:flex;flex-direction:column}.call-top{padding:calc(10px + var(--safe-top)) 12px 8px;display:flex;justify-content:space-between;align-items:center;gap:12px;background:linear-gradient(#0009,#0000)}.timer{font-variant-numeric:tabular-nums;font-size:20px;font-weight:700}.timer.warn{color:#ffcf5a}.question{margin:0 12px;padding:10px 14px;border-radius:10px;background:#ffffff1f;font-size:15px;line-height:1.5}.tiles{flex:1;min-height:0;position:relative}.call-bottom{padding:10px 12px calc(12px + var(--safe-bottom));display:grid;grid-template-columns:repeat(4,1fr);gap:8px;background:linear-gradient(#0000,#000000b3)}.call-bottom .btn{min-height:52px;font-size:14px;padding:10px 6px}.waiting{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px;color:#ddd;font-size:16px;line-height:1.7}.status{font-size:12px;color:#bbb}@media(min-width:700px){.page{max-width:480px;margin:0 auto;min-height:100vh}}