:root{--color-primary: #0B7FFF;--color-secondary: #00D66F;--color-accent: #FF6B3D;--color-bg: #F6F8FB;--color-surface: #FFFFFF;--color-surface-2: #F1F4F9;--color-text: #0F172A;--color-text-dim: #5B6B85;--color-border: #E5EAF2;--color-overlay: rgba(15, 23, 42, .45);--color-bg-elev: var(--color-surface);--color-bg-elev-2: var(--color-surface-2);--radius: 16px;--radius-sm: 10px;--radius-md: 12px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 4px 16px rgba(15, 23, 42, .08);--shadow-nav: 0 -4px 24px rgba(15, 23, 42, .08);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--maxw: 720px;--nav-h: 64px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}:root[data-theme=dark]{--color-bg: #0F172A;--color-surface: #16223b;--color-surface-2: #1e2c49;--color-text: #E6EDF6;--color-text-dim: #93A4BD;--color-border: #25344f;--color-overlay: rgba(15, 23, 42, .85);--color-bg-elev: var(--color-surface);--color-bg-elev-2: var(--color-surface-2);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .25);--shadow-nav: 0 -4px 24px rgba(0, 0, 0, .3)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}.app-shell{max-width:var(--maxw);margin:0 auto;min-height:100%;display:flex;flex-direction:column;background:var(--color-bg)}@media (min-width: 768px){body{background:color-mix(in srgb,var(--color-bg) 70%,var(--color-border))}.app-shell{min-height:calc(100% - var(--space-lg) * 2);margin:var(--space-lg) auto;border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-md);overflow:hidden}}.topbar{display:flex;align-items:center;gap:12px;padding:16px 18px;position:sticky;top:0;background:color-mix(in srgb,var(--color-surface) 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ease}.btn:hover:not(:disabled){background:color-mix(in srgb,var(--color-surface-2) 80%,var(--color-border))}.btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-accent{background:var(--color-accent);color:#fff}.btn-accent:hover:not(:disabled){background:color-mix(in srgb,var(--color-accent) 88%,#000)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:color-mix(in srgb,var(--color-primary) 88%,#000)}.btn-ghost{background:transparent;border:1px solid var(--color-border)}.btn-ghost:hover:not(:disabled){background:var(--color-surface-2)}.btn:disabled{opacity:.5;cursor:not-allowed}.row{display:flex;gap:10px}.row>*{flex:1}.pill{display:inline-block;background:var(--color-surface-2);color:var(--color-text-dim);border-radius:999px;padding:6px 12px;min-height:32px;font-size:12px;margin:0 6px 6px 0}.stat{text-align:center}.stat .value{font-size:26px;font-weight:800;color:var(--color-secondary)}.stat 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var(--color-border);background:var(--color-surface);color:var(--color-text);font-size:15px;margin-bottom:10px;transition:border-color .15s ease,box-shadow .15s ease}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--color-primary) 20%,transparent)}.label{font-size:13px;color:var(--color-text-dim);display:block;margin-bottom:4px}.center-screen{min-height:100%;display:flex;flex-direction:column;justify-content:center;padding:24px;max-width:420px;margin:0 auto}.center-screen img.mascot{width:140px;align-self:center;margin-bottom:8px}.player-step{text-align:center;padding:12px 0}.player-clip{margin:8px auto 12px;max-width:320px}.exercise-clip{width:100%;aspect-ratio:1;border-radius:var(--radius-sm);overflow:hidden;background:var(--color-surface-2)}.exercise-clip canvas,.exercise-clip video,.exercise-clip img{width:100%;height:100%;object-fit:contain;display:block}.player-timer{font-size:56px;font-weight:800;color:var(--color-accent)}.error{color:#e53e3e;font-size:14px;margin-bottom:10px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.pill.active{background:var(--color-primary);color:#fff}.pill-soft{border:1px dashed var(--color-text-dim);background:transparent}.pill-silver{background:linear-gradient(135deg,#94a3b8,#cbd5e1);color:#0f172a}.pill-gold{background:linear-gradient(135deg,#f59e0b,#fcd34d);color:#422006}.pill-platinum{background:linear-gradient(135deg,#a78bfa,#e9d5ff);color:#2e1065}.tier-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.tier-card--current{outline:2px solid var(--color-secondary)}.tier-card--focus{outline:2px solid var(--color-accent)}.tier-highlights{margin:12px 0;padding-left:18px;font-size:13px;color:var(--color-text-dim)}.tier-highlights 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.btn{min-height:52px}.exercise-brief{margin-top:12px;text-align:left}.exercise-brief--compact{margin-top:8px}.exercise-brief__image{width:100%;max-width:280px;border-radius:var(--radius-md);margin:0 auto 10px;display:block}.exercise-brief__desc{margin:0 0 8px;color:var(--color-text-dim);font-size:14px}.exercise-brief__meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.exercise-brief__section{margin-top:10px}.exercise-brief__section ul{margin:4px 0 0;padding-left:18px;color:var(--color-text-dim);font-size:14px}.exercise-brief__section li{margin-bottom:4px}.exercise-brief__mistakes li{color:color-mix(in srgb,var(--color-accent) 70%,var(--color-text-dim))}.exercise-row{padding:12px 0;border-bottom:1px solid var(--color-border)}.exercise-row:last-child{border-bottom:none;padding-bottom:0}.exercise-row__name{font-weight:600}.dungeon-week{margin-bottom:16px}.dungeon-days{display:flex;gap:6px;flex-wrap:wrap}.dungeon-day{width:44px;height:52px;border-radius:var(--radius-sm);border:1px 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