:root{--bg: #0f0f1a;--surface: #1a1a2e;--surface2: #252540;--accent: #7c3aed;--accent2: #a855f7;--green: #22c55e;--red: #ef4444;--yellow: #f59e0b;--text: #f1f5f9;--muted: #94a3b8;--border: #2d2d4e;--radius: 16px;--radius-sm: 10px}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;min-height:100vh}button{cursor:pointer;border:none;background:none;font-family:inherit}.page{padding:16px 16px 80px;max-width:480px;margin:0 auto}.page.center{display:flex;align-items:center;justify-content:center;min-height:100vh}.page.center>*{width:100%;max-width:360px;text-align:center}.splash{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;gap:8px}.splash-logo{font-size:64px;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.splash-title{font-size:24px;font-weight:700;color:var(--muted)}.btn-primary{width:100%;padding:16px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-radius:var(--radius);font-size:16px;font-weight:700;margin:8px 0}.btn-primary:active{opacity:.85;transform:scale(.98)}.btn-ghost{width:100%;padding:14px;background:transparent;color:var(--muted);border:1px solid var(--border);border-radius:var(--radius);font-size:15px;margin:4px 0}.btn-sm{padding:8px 16px;background:var(--accent);color:#fff;border-radius:8px;font-size:14px;font-weight:600}.home-header{display:flex;justify-content:space-between;align-items:center;padding:8px 0 16px}.greeting-text{font-size:18px;font-weight:700}.premium-badge{background:var(--yellow);color:#000;font-size:11px;font-weight:800;padding:2px 8px;border-radius:20px;margin-left:8px}.home-stats{display:flex;gap:12px;font-size:14px;color:var(--muted)}.live-banner{background:linear-gradient(135deg,#1a0a2e,#2d1458);border:1px solid var(--accent);border-radius:var(--radius);padding:12px 16px;display:flex;align-items:center;gap:8px;margin-bottom:16px;cursor:pointer}.live-dot{width:8px;height:8px;background:var(--red);border-radius:50%;animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.live-join{margin-left:auto;color:var(--accent2);font-weight:600}.menu-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.menu-card{background:var(--surface);border-radius:var(--radius);padding:20px 16px;display:flex;flex-direction:column;gap:4px;text-align:left;transition:transform .15s}.menu-card:active{transform:scale(.96)}.menu-card.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));grid-column:span 2;flex-direction:row;align-items:center;gap:16px;padding:20px 24px}.menu-card.primary .menu-title{font-size:20px}.menu-icon{font-size:28px}.menu-title{font-size:15px;font-weight:700}.menu-sub{font-size:12px;color:var(--muted)}.menu-card.primary .menu-sub{color:#ffffffb3}.game-screen{max-width:480px;margin:0 auto;padding:16px;min-height:100vh;display:flex;flex-direction:column;gap:16px}.game-progress{display:flex;align-items:center;gap:12px}.progress-bar{flex:1;height:6px;background:var(--surface2);border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .3s}.question-counter{font-size:13px;color:var(--muted);white-space:nowrap}.timer{position:relative;width:56px;height:56px;align-self:center}.timer-ring{width:100%;height:100%;transform:rotate(-90deg)}.timer span{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700}.timer-urgent span{color:var(--red);animation:shake .3s infinite}@keyframes shake{0%,to{transform:translate(0)}50%{transform:translate(2px)}}.question-card{background:var(--surface);border-radius:var(--radius);padding:24px}.question-meta{font-size:12px;color:var(--muted);margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}.question-text{font-size:18px;font-weight:600;line-height:1.5}.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.option{background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-sm);padding:14px 12px;font-size:14px;font-weight:500;color:var(--text);text-align:left;transition:all .15s}.option:not(:disabled):active{background:var(--surface2);border-color:var(--accent);transform:scale(.97)}.option.correct{border-color:var(--green);background:#22c55e26}.option.wrong{border-color:var(--red);background:#ef444426}.reveal-bar{border-radius:var(--radius);padding:16px;font-weight:700;font-size:16px}.reveal-bar.correct{background:#22c55e33;border:1px solid var(--green)}.reveal-bar.wrong{background:#ef444433;border:1px solid var(--red)}.explanation{font-size:13px;font-weight:400;color:var(--muted);margin-top:6px;line-height:1.5}.result-screen{text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}.result-score{font-size:80px;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.result-label{font-size:20px;color:var(--muted)}.result-stats{display:flex;gap:24px;font-size:16px}.result-badge{background:#f59e0b33;border:1px solid var(--yellow);border-radius:20px;padding:6px 20px;color:var(--yellow);font-weight:600}.result-actions{width:100%;display:flex;flex-direction:column;gap:8px}.lb-row{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--surface);border-radius:var(--radius-sm);margin-bottom:8px}.lb-row.me{border:1px solid var(--accent)}.lb-rank{font-size:18px;width:40px;text-align:center;font-weight:700}.lb-name{flex:1;font-weight:500}.lb-score{font-weight:700;color:var(--accent2)}.my-rank-hint{text-align:center;color:var(--muted);margin-top:8px;font-size:14px}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{flex:1;padding:10px;background:var(--surface);border-radius:var(--radius-sm);font-size:14px;color:var(--muted)}.tab.active{background:var(--accent);color:#fff;font-weight:700}.profile-header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.profile-avatar{width:64px;height:64px;background:var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700}.profile-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}.stat{background:var(--surface);border-radius:var(--radius-sm);padding:16px;text-align:center}.stat span{display:block;font-size:24px;font-weight:700}.stat label{font-size:12px;color:var(--muted)}.xp-bar{height:8px;background:var(--surface2);border-radius:4px;overflow:hidden;position:relative;margin-bottom:4px}.xp-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:4px;transition:width .5s}.referral-block{background:var(--surface);border-radius:var(--radius);padding:20px;margin-top:20px;text-align:center}.error-box{background:#ef444433;border:1px solid var(--red);border-radius:var(--radius-sm);padding:12px;color:var(--red);margin:8px 0}.muted{color:var(--muted);font-size:14px}.wallet-bar{background:var(--surface);border-radius:var(--radius-sm);padding:12px 16px;font-size:16px;font-weight:600;margin-bottom:16px}.shop-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.shop-item{background:var(--surface);border-radius:var(--radius-sm);padding:16px;display:flex;flex-direction:column;gap:8px}.si-name{font-size:14px;font-weight:600}.si-price{font-size:14px;color:var(--yellow)}.tournament-card{background:var(--surface);border-radius:var(--radius-sm);padding:16px;margin-bottom:12px}.tc-title{font-size:16px;font-weight:700;margin-bottom:4px}.tc-meta{font-size:13px;color:var(--muted)}.tc-time{font-size:12px;color:var(--accent2);margin:8px 0}.invite-card{background:var(--surface);border-radius:var(--radius);padding:20px}.invite-url{font-size:12px;color:var(--muted);word-break:break-all;margin:12px 0;padding:10px;background:var(--surface2);border-radius:8px}.round-card{background:var(--surface);border-radius:var(--radius-sm);padding:16px;margin-bottom:12px;cursor:pointer}.round-status{font-size:13px;font-weight:600;margin-bottom:4px}.bp-level{font-size:48px;font-weight:900;color:var(--accent2)}.onboarding{gap:24px}.ob-icon{font-size:72px}.ob-dots{display:flex;gap:8px;justify-content:center}.dot{width:8px;height:8px;background:var(--border);border-radius:50%}.dot.active{background:var(--accent)}.daily-start{text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}.ds-icon{font-size:72px}h1{font-size:32px;font-weight:900}h2{font-size:22px;font-weight:800;margin-bottom:16px}p{color:var(--muted);line-height:1.6}