:root{--bg:#10131b;--card:#191e29;--line:#343d50;--text:#f6f7fb;--muted:#9da9bd;--accent:#58bdf6;--green:#43d39d;--yellow:#f5c95e}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 18% 0,#262d40 0,#11151e 42%,#0d1017 100%);color:var(--text);font-family:Pretendard,Inter,system-ui,sans-serif;min-height:100vh}.lobby-shell{width:min(1120px,calc(100% - 32px));margin:42px auto 70px}.lobby-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-bottom:22px}.eyebrow{font-size:12px;letter-spacing:.18em;color:var(--accent)}h1{font-size:40px;margin:6px 0 5px}p{color:var(--muted);margin:6px 0}.head-actions{display:flex;gap:8px;flex-wrap:wrap}.btn,.toolbar button{border:1px solid var(--line);background:#232a38;color:#fff;border-radius:11px;padding:11px 15px;text-decoration:none;font-weight:800;cursor:pointer}.btn.ghost{background:#171c26}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;border:1px solid var(--line);background:#161b25;border-radius:16px;padding:14px 16px;margin-bottom:16px;color:var(--muted)}.toolbar b{color:#fff;font-size:22px}.quiz-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.quiz-card{display:block;color:inherit;text-decoration:none;background:linear-gradient(145deg,#1c2230,#151a24);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 12px 34px #0004;transition:.15s}.quiz-card:hover{transform:translateY(-2px);border-color:#52627d}.card-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.quiz-card h2{font-size:21px;margin:0 0 7px}.desc{color:var(--muted);font-size:13px;line-height:1.5;min-height:38px;white-space:pre-wrap}.badges{display:flex;gap:6px;flex-wrap:wrap;margin:13px 0}.badge{font-size:11px;font-weight:900;border:1px solid #4b566d;border-radius:999px;padding:4px 8px;color:#c3cee1}.badge.live{border-color:#34866a;color:#7ff1bf;background:#153428}.badge.paused{border-color:#856e37;color:#ffe292;background:#302714}.badge.twenty{border-color:#7665bb;color:#d5ccff;background:#27223b}.progress{height:8px;border-radius:999px;background:#0d1118;overflow:hidden;border:1px solid #313a4c}.progress i{display:block;height:100%;background:linear-gradient(90deg,#4ab8f4,#4be0a2);width:0}.meta{display:flex;justify-content:space-between;gap:12px;margin-top:9px;font-size:12px;color:#aeb8c8}.join{margin-top:14px;text-align:right;color:#8ed8ff;font-weight:900}.empty{grid-column:1/-1;padding:48px 20px;border:1px dashed #3c465a;border-radius:18px;text-align:center;color:var(--muted)}.footnote{text-align:center;font-size:12px;margin-top:20px}@media(max-width:720px){.lobby-head{flex-direction:column}.quiz-grid{grid-template-columns:1fr}h1{font-size:32px}.head-actions{width:100%}.head-actions .btn{flex:1;text-align:center}}