:root{color-scheme:dark;--bg: #0c1222;--panel: #151d33;--text: #e8eefc;--muted: #8b9bb8;--accent: #3d8bfd;--danger: #f07178;--ok: #7fd99a;font-family:Segoe UI,Tahoma,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(1200px 600px at 50% -10%,#1a2744,var(--bg));color:var(--text)}#app{min-height:100vh;display:grid;place-items:center;padding:1.5rem}.shell{width:min(520px,100%);background:color-mix(in srgb,var(--panel) 92%,black);border:1px solid #2a3654;border-radius:16px;padding:2rem;box-shadow:0 24px 60px #00000059}.shell-wide{width:min(960px,100%)}.topbar{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:1rem}.brand{font-size:1.75rem;font-weight:700;letter-spacing:.04em;margin:0}.tag{margin:0;color:var(--muted);font-size:.9rem}label{display:block;margin-bottom:.4rem;color:var(--muted);font-size:.9rem}input{width:100%;padding:.85rem 1rem;border-radius:10px;border:1px solid #33415f;background:#0f1628;color:var(--text);font-size:1.15rem;letter-spacing:.12em;text-align:center}input:focus{outline:2px solid color-mix(in srgb,var(--accent) 70%,white);border-color:transparent}.actions{display:flex;gap:.75rem;margin-top:1rem}button{flex:1;border:0;border-radius:10px;padding:.85rem 1rem;font-size:1rem;cursor:pointer}button.primary{background:var(--accent);color:#041018;font-weight:700}button.ghost{background:transparent;color:var(--muted);border:1px solid #33415f}button:disabled{opacity:.5;cursor:not-allowed}.error{margin-top:1rem;color:var(--danger);font-size:.95rem}.mono{font-family:ui-monospace,Consolas,monospace;color:var(--text);word-break:break-all}.hint{margin-top:1rem;color:var(--muted);font-size:.85rem;line-height:1.45}.scoreboard{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.5rem;margin-bottom:1rem}.score-cell{background:#0f1628;border:1px solid #2a3654;border-radius:10px;padding:.65rem .75rem;display:flex;flex-direction:column;gap:.15rem}.score-cell.excluded{opacity:.45}.score-name{color:var(--muted);font-size:.85rem}.score-value{font-size:1.35rem;font-weight:700}.score-rank{color:var(--ok);font-size:.8rem}.stage{min-height:220px;background:#0f1628;border:1px solid #2a3654;border-radius:14px;padding:1.25rem}.stage h2{margin:0 0 .75rem;font-size:1.25rem;color:var(--ok)}.prep-bar{margin:.5rem 0;height:8px;border-radius:999px;background:#1a2438;overflow:hidden}.prep-bar-fill{height:100%;background:linear-gradient(90deg,#2f6fed,#7fd99a);transition:width .25s ease}.board-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:.75rem}.board-card{background:#151d33;border:1px solid #33415f;border-radius:12px;padding:.5rem;display:flex;flex-direction:column;gap:.35rem;align-items:center}.board-card.status-opened,.board-card.status-answered{opacity:.55}.card-img{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:8px;background:#1a2438}.card-img.placeholder{background:repeating-linear-gradient(45deg,#1a2438,#1a2438 8px,#151d33 8px,#151d33 16px)}.card-tier{font-weight:700;font-size:1.1rem}.card-status{font-size:.75rem;color:var(--muted)}.prompt-banner{color:var(--accent);margin:0 0 .75rem}.qa-text{font-size:1.35rem;line-height:1.55;margin:.5rem 0}.answer-text{color:var(--ok);font-weight:600}.question-echo{color:var(--muted);font-size:1rem}.media-stage{margin-top:1rem;display:grid;gap:.75rem}.media-image{max-width:100%;border-radius:12px}.media-video{width:100%;max-height:360px;border-radius:12px;background:#000}.media-audio{width:100%}.overlay{text-align:center;padding:2rem 1rem}.overlay.pause h2{color:#f0c674}.overlay.disconnect h2{color:var(--danger)}.overlay.recover h2{color:var(--accent)}.overlay.recover.failed h2{color:var(--danger)}.results .winner{font-size:1.4rem;color:var(--ok);font-weight:700}.buzz{margin-top:1rem;padding-top:.75rem;border-top:1px solid #2a3654}.buzz h3{margin:0 0 .35rem;font-size:.95rem;color:var(--muted)}.buzz ol{margin:0;padding-inline-start:1.25rem}