:root{--blue:#063d68;--blue2:#002d50;--yellow:#ffd52f;--ink:#082f52;--bg:#eef4f8;--white:#fff;--red:#d33b3b;--green:#168b59}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:#17202a}a{color:inherit}.top{background:linear-gradient(135deg,var(--blue2),var(--blue));color:white;padding:18px 24px}.top h1{margin:0;font-size:clamp(24px,5vw,44px)}.wrap{max-width:1180px;margin:auto;padding:24px}.card{background:white;border-radius:18px;padding:22px;box-shadow:0 10px 35px rgba(0,45,80,.10);margin-bottom:20px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}.btn{border:0;border-radius:12px;padding:13px 18px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--yellow);color:var(--ink)}.btn.secondary{background:var(--blue);color:white}.btn.danger{background:var(--red);color:white}.btn.success{background:var(--green);color:white}.btn:disabled{opacity:.5;cursor:not-allowed}input,select{width:100%;padding:13px;border:1px solid #c8d5df;border-radius:11px;font-size:16px;margin:6px 0 14px}label{font-weight:700}.notice{padding:12px 15px;border-radius:10px;background:#fff5c9;margin:12px 0}.error{background:#ffe0e0}.room-code{font-size:58px;font-weight:900;letter-spacing:8px;color:var(--blue)}.bingo-card{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;max-width:560px;margin:auto}.cell{aspect-ratio:1;border:0;border-radius:12px;background:#fff;color:var(--ink);font-size:clamp(24px,6vw,54px);font-weight:900;box-shadow:0 2px 8px rgba(0,0,0,.12)}.cell.head{background:var(--yellow)}.cell.marked{background:var(--yellow);opacity:.78}.cell.free{background:#111;color:#ffd52f;font-size:18px}.screen{min-height:100vh;background:linear-gradient(145deg,#002c4b,#07507f);color:white}.screen-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(300px,1fr);gap:20px}.number-ball{width:min(45vw,340px);aspect-ratio:1;border-radius:50%;background:var(--yellow);color:var(--blue2);display:flex;align-items:center;justify-content:center;font-size:clamp(90px,18vw,200px);font-weight:1000;margin:20px auto;box-shadow:0 14px 45px rgba(0,0,0,.3)}.history{display:flex;flex-wrap:wrap;gap:8px}.history span{background:white;color:var(--ink);border-radius:999px;padding:8px 12px;font-weight:800}.leader{display:flex;justify-content:space-between;gap:12px;padding:11px;border-bottom:1px solid #dce7ee}.bar{height:8px;background:#dbe6ed;border-radius:20px;overflow:hidden}.bar i{display:block;height:100%;background:var(--yellow)}table{width:100%;border-collapse:collapse}td,th{padding:11px;border-bottom:1px solid #e2ebf0;text-align:left}@media(max-width:800px){.grid2,.screen-layout{grid-template-columns:1fr}.wrap{padding:14px}.cell{border-radius:8px}.screen-layout aside{order:2}}
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