:root{--bg: #0E0E10;--bg-secondary: #1A1A1E;--bg-tertiary: #232328;--border: rgba(255, 255, 255, .12);--text-primary: #F5F5F5;--text-secondary: rgba(255, 255, 255, .7);--text-tertiary: rgba(255, 255, 255, .45);--accent: #FF8A1F;--accent-text: #0E0E10;--success: #1D9E75;--warn: #EF9F27;--danger: #E24B4A;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text-primary);font-family:var(--font);-webkit-font-smoothing:antialiased;min-height:100vh}#it-page{max-width:760px;margin:0 auto;padding:24px 16px 40px}.it-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:20px}.it-brand{display:flex;align-items:center;gap:10px}.it-brand-mark{background:var(--accent);color:var(--accent-text);font-weight:600;font-size:13px;padding:4px 8px;border-radius:var(--radius-md);letter-spacing:1px}.it-brand-name{font-size:16px;font-weight:500}.it-version{font-size:12px;color:var(--text-tertiary);letter-spacing:1px}#it-root{padding:8px 0}.it-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.it-row-spaced{justify-content:space-between;margin-bottom:16px}.it-row-wrap{flex-wrap:wrap}.it-eyebrow{font-size:11px;letter-spacing:1.5px;color:var(--accent);font-weight:500}.it-title{font-size:18px;font-weight:500;margin-top:2px}.it-label{font-size:13px;color:var(--text-secondary)}.it-helper{font-size:13px;color:var(--text-secondary);margin-bottom:8px;line-height:1.5}.it-status{font-size:12px;color:var(--text-tertiary)}.it-hint{font-size:12px;color:#ffffff73;margin-top:12px}.it-card{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:16px;margin-bottom:16px}.it-input-num,.it-select{background:var(--bg);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-md);padding:6px 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20px;border-radius:var(--radius-md);cursor:pointer;font-size:14px;font-weight:500;font-family:inherit;text-decoration:none;display:inline-block}.it-btn-primary:hover{filter:brightness(1.1)}.it-anchor-block{display:none}.it-wave-canvas{display:block;width:100%;height:110px;background:var(--bg);border-radius:var(--radius-md);cursor:crosshair}.it-game-shell{position:relative;background:var(--bg);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden}#it-canvas{display:block;width:100%;height:340px}.it-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0e0e10eb}.it-overlay-inner{text-align:center;max-width:480px;padding:12px 16px;width:100%}.it-overlay-title{font-size:22px;font-weight:500;color:#fff;margin-bottom:6px}.it-overlay-sub{font-size:14px;color:#ffffffbf;line-height:1.6;margin-bottom:8px}.it-overlay.it-go-mode .it-hint{display:none}.it-overlay-success{color:var(--success);margin-top:10px;font-size:13px}.it-overlay-warn{color:var(--warn);margin-top:10px;font-size:13px}.it-overlay-info{color:var(--text-secondary);margin-top:10px;font-size:13px}.it-overlay-feedback{color:var(--text-secondary);font-size:12px;margin-top:14px;line-height:1.7}.it-overlay-feedback div+div{margin-top:4px}.it-go-label{font-size:11px;letter-spacing:2px;color:#ffffff59;font-weight:400;text-transform:uppercase}.it-go-score{font-size:42px;font-weight:700;color:#fff;line-height:1;margin:2px 0 1px}.it-go-score-label{font-size:11px;letter-spacing:2px;color:#ffffff59;font-weight:400;text-transform:uppercase;margin-bottom:4px}.it-go-coaching{font-size:14px;color:#fff;line-height:1.5;margin-bottom:4px}.it-go-stats{font-size:13px;color:var(--text-secondary);line-height:1.4;border-top:1px solid rgba(255,255,255,.08);padding-top:5px;margin-bottom:0}.it-go-submit-quick,.it-go-submit-form{margin-top:4px}.it-go-submit-form 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12px}.it-stat-label{font-size:11px;color:var(--text-secondary);letter-spacing:.5px}.it-stat-value{font-size:20px;font-weight:500}#it-cta{background:var(--bg);border:1px solid var(--accent);border-radius:var(--radius-lg);padding:14px 18px;margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.it-cta-left{display:flex;align-items:center;gap:12px}.idj-mark{background:var(--accent);color:var(--accent-text);font-weight:600;font-size:14px;padding:6px 10px;border-radius:var(--radius-md);letter-spacing:1px}.it-cta-title{font-size:14px;font-weight:500;color:#fff}.it-cta-sub{font-size:12px;color:#ffffffa6;margin-top:2px}.it-cta-link{white-space:nowrap;padding:8px 14px;font-size:13px}.it-controls{font-size:12px;color:var(--text-tertiary);margin-top:12px;line-height:1.6}.it-key{color:var(--text-secondary)}#it-leaderboard{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:16px;margin-top:20px}.it-lb-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;flex-wrap:wrap;gap:8px}.it-lb-title{font-size:16px;font-weight:500}.it-lb-tabs{display:flex;gap:4px}.it-lb-tab{background:transparent;border:1px solid var(--border);color:var(--text-secondary);padding:6px 12px;font-size:12px;border-radius:var(--radius-md);cursor:pointer;font-family:inherit}.it-lb-tab-active{border-color:var(--accent);color:var(--accent)}.it-lb-empty{color:var(--text-tertiary);font-size:13px;padding:16px 0;text-align:center}.it-lb-list{list-style:none;padding:0;margin:0}.it-lb-row{display:grid;grid-template-columns:40px 1fr auto auto;gap:12px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:13px;align-items:center}.it-lb-row:last-child{border-bottom:none}.it-lb-row-top .it-lb-rank{color:var(--accent);font-weight:600}.it-lb-rank{color:var(--text-tertiary)}.it-lb-name{color:var(--text-primary)}.it-lb-streak{color:var(--text-secondary);font-size:12px}.it-lb-score{color:var(--accent);font-weight:500;min-width:50px;text-align:right}.it-footer{margin-top:32px;padding-top:16px;border-top:1px solid var(--border);font-size:12px;color:var(--text-tertiary);text-align:center}.it-footer a{color:var(--accent);text-decoration:none}@media (max-width: 640px){#it-canvas{height:280px}.it-title{font-size:16px}.it-stats{grid-template-columns:repeat(3,1fr)}}@media (pointer: coarse){.it-hint,.it-controls{display:none}}