@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap";:root,:root[data-theme=dark]{--bg-main:#0a0c10;--bg-surface:#12151d;--bg-surface-elevated:#1a1e29;--bg-card:#151923;--bg-card-hover:#1e2332;--bg-input:#0e1118;--border-subtle:#242b3d;--border-focus:#3b82f6;--border-highlight:#f59e0b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--accent-amber:#f59e0b;--accent-amber-glow:#f59e0b40;--accent-cyan:#06b6d4;--accent-cyan-glow:#06b6d433;--accent-emerald:#10b981;--accent-rose:#f43f5e;--accent-purple:#8b5cf6;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-full:9999px;--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", monospace;--shadow-card:0 4px 20px -2px #00000080;--shadow-glow:0 0 20px -3px #f59e0b59}:root[data-theme=light]{--bg-main:#fff;--bg-surface:#fff;--bg-surface-elevated:#f8fafc;--bg-card:#fff;--bg-card-hover:#f1f5f9;--bg-input:#fff;--border-subtle:#e2e8f0;--border-focus:#2563eb;--border-highlight:#d97706;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--accent-amber:#d97706;--accent-amber-glow:#d9770626;--accent-cyan:#0284c7;--accent-cyan-glow:#0284c726;--accent-emerald:#059669;--accent-rose:#e11d48;--accent-purple:#7c3aed;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-full:9999px;--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", monospace;--shadow-card:0 4px 20px -2px #00000012;--shadow-glow:0 0 20px -3px #d9770633}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;max-width:100%;font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.5;position:relative;overflow-x:hidden}.app-layout{background:radial-gradient(circle at 50% 0,#151a28 0%,#0a0c10 70%);flex-direction:column;width:100%;max-width:100%;min-height:100vh;display:flex;overflow-x:hidden}.app-header{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);z-index:50;box-sizing:border-box;background-color:#12151dd9;justify-content:space-between;align-items:center;width:100%;max-width:100vw;padding:.85rem 2rem;display:flex;position:sticky;top:0}.header-left{align-items:center;gap:.85rem;display:flex}.logo-badge{border-radius:var(--radius-md);background:var(--accent-amber);flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex;overflow:hidden;box-shadow:0 2px 10px #f59e0b4d}.logo-icon-img{object-fit:cover;width:100%;height:100%;display:block}.logo-title{letter-spacing:-.02em;color:#fff;font-size:1.2rem;font-weight:800}.logo-accent{color:var(--accent-amber)}.logo-subtitle{color:var(--text-secondary);font-size:.72rem;font-weight:500}.btn-theme-toggle{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-full);color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap;align-items:center;gap:.45rem;margin-left:.5rem;padding:.35rem .75rem;font-size:.76rem;font-weight:700;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex;box-shadow:0 1px 3px #0000001a}.btn-theme-toggle:hover{border-color:var(--accent-amber);background:var(--bg-card-hover);transform:translateY(-1px);box-shadow:0 2px 8px #00000026}.btn-theme-toggle:active{transform:translateY(0)}.btn-theme-toggle .theme-icon-moon{color:#fbbf24}.btn-theme-toggle .theme-icon-sun{color:#f59e0b}.theme-toggle-label{font-family:var(--font-sans);letter-spacing:.01em}@media (width<=768px){.theme-toggle-label{display:none}.btn-theme-toggle{margin-left:.25rem;padding:.35rem .5rem}}.btn-header-metronome{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-full);color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap;align-items:center;gap:.4rem;margin-left:.25rem;padding:.35rem .75rem;font-size:.76rem;font-weight:700;text-decoration:none;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex;box-shadow:0 1px 3px #0000001a}.btn-header-metronome:hover{border-color:var(--accent-amber);background:var(--bg-card-hover);color:var(--accent-amber);transform:translateY(-1px);box-shadow:0 2px 8px #00000026}.btn-header-metronome:active{transform:translateY(0)}.btn-header-metronome .header-metronome-icon{color:var(--accent-amber)}.btn-header-metronome .header-metronome-ext{opacity:.6;transition:opacity .15s}.btn-header-metronome:hover .header-metronome-ext{opacity:1}.header-metronome-label{font-family:var(--font-sans);letter-spacing:.01em}@media (width<=768px){.header-metronome-label,.header-metronome-ext{display:none}.btn-header-metronome{margin-left:.15rem;padding:.35rem .5rem}}.header-center{align-items:center;gap:1rem;display:flex}.header-stat-pill{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-full);font-size:.8rem;font-family:var(--font-mono);align-items:center;gap:.5rem;padding:.35rem .85rem;display:flex}.header-stat-pill.pill-active{border-color:var(--accent-amber);color:var(--accent-amber);background:#f59e0b1a}.stat-label{color:var(--text-muted);letter-spacing:.05em;font-size:.7rem;font-weight:600}.stat-value{color:var(--text-primary);font-weight:700}.stat-unit{color:var(--text-secondary);font-size:.7rem}.header-right{align-items:center;gap:.65rem;display:flex}.btn-header-action{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);color:var(--text-primary);border-radius:var(--radius-md);cursor:pointer;align-items:center;gap:.5rem;padding:.5rem .95rem;font-size:.82rem;font-weight:600;transition:all .15s;display:flex}.btn-header-action:hover{background:var(--bg-card-hover);border-color:var(--accent-amber);color:#fff;transform:translateY(-1px)}.btn-song-loops-header{border-color:#f59e0b4d}.header-count-badge{font-family:var(--font-mono);background:var(--accent-amber);color:#000;border-radius:var(--radius-full);padding:.05rem .45rem;font-size:.7rem;font-weight:800}.btn-header-icon{background:var(--bg-surface-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-md);width:36px;height:36px;color:var(--text-secondary);cursor:pointer;justify-content:center;align-items:center;transition:all .15s;display:flex}.btn-header-icon:hover{color:#fff;border-color:var(--text-secondary)}.studio-main-content{flex-direction:column;gap:1.5rem;width:100%;max-width:1400px;margin:0 auto;padding:1.5rem 2rem 1.75rem;display:flex}.video-input-section{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:1.1rem 1.4rem}.video-input-form{align-items:center;gap:.75rem;display:flex}.input-field-wrapper{flex:1;align-items:center;display:flex;position:relative}.input-icon-youtube{color:red;position:absolute;left:14px}.video-text-input{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:#fff;width:100%;font-size:.92rem;font-family:var(--font-sans);outline:none;padding:.8rem 2.5rem .8rem 2.8rem;transition:border-color .15s,box-shadow .15s}.video-text-input:focus{border-color:var(--accent-amber);box-shadow:0 0 0 3px var(--accent-amber-glow)}.btn-clear-input{color:var(--text-muted);cursor:pointer;background:0 0;border:none;font-size:.9rem;position:absolute;right:12px}.btn-clear-input:hover{color:#fff}.btn-analyze-video{color:#000;border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;background:linear-gradient(135deg,#f59e0b,#d97706);border:none;align-items:center;gap:.6rem;padding:.8rem 1.4rem;font-size:.9rem;font-weight:700;transition:all .15s;display:flex}.btn-analyze-video:hover:not(:disabled){filter:brightness(1.1);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-analyze-video:disabled{opacity:.5;cursor:not-allowed}.input-error-banner{color:#fb7185;border-radius:var(--radius-sm);background:#f43f5e1a;align-items:center;gap:.5rem;margin-top:.6rem;padding:.4rem .8rem;font-size:.82rem;display:flex}.preset-quick-pills{border-top:1px solid #ffffff0f;align-items:center;gap:.75rem;margin-top:.9rem;padding-top:.85rem;display:flex;overflow:hidden}.preset-pills-label{color:var(--accent-amber);text-transform:none;letter-spacing:.02em;white-space:nowrap;align-items:center;gap:.4rem;font-size:.78rem;font-weight:700;display:flex}.pills-scroll-container{scrollbar-width:thin;gap:.5rem;padding-bottom:2px;display:flex;overflow-x:auto}.preset-pill-btn{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;white-space:nowrap;align-items:center;gap:.5rem;max-width:260px;padding:.35rem .85rem;font-size:.78rem;font-weight:600;transition:all .15s;display:flex}.preset-pill-btn:hover{background:var(--bg-card-hover);border-color:var(--accent-amber);color:#fff}.preset-pill-btn.is-active{border-color:var(--accent-amber);color:var(--accent-amber);background:#f59e0b1f;font-weight:700}.pill-title{text-overflow:ellipsis;white-space:nowrap;max-width:220px;display:inline-block;overflow:hidden}@media (width<=640px){.pill-title{max-width:150px}}.player-view-container{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden}.player-status-bar{background:var(--bg-card);border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:.75rem 1.4rem;display:flex}.status-measure-beat{align-items:center;gap:1rem;display:flex}.measure-tag{font-family:var(--font-mono);color:var(--text-secondary);font-size:.85rem;font-weight:700}.measure-number{color:var(--accent-amber);margin-left:.2rem;font-size:1.15rem;font-weight:800}.beat-indicators-row{align-items:center;gap:.35rem;display:flex}.beat-led{border:1px solid var(--border-subtle);background:#1e2433;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;transition:all 80ms;display:flex}.led-text{font-size:.7rem;font-family:var(--font-mono);color:var(--text-muted);font-weight:700}.beat-led.led-active{background:var(--accent-cyan);box-shadow:0 0 12px var(--accent-cyan);border-color:#fff;transform:scale(1.15)}.beat-led.led-active .led-text{color:#000}.beat-led.led-downbeat{background:var(--accent-amber);box-shadow:0 0 16px var(--accent-amber);border-color:#fff;transform:scale(1.2)}.beat-led.led-downbeat .led-text{color:#000;font-weight:900}.status-loop-badge{color:#34d399;border-radius:var(--radius-full);background:#10b9811f;border:1px solid #10b98166;align-items:center;gap:.45rem;padding:.3rem .85rem;font-size:.78rem;font-weight:700;display:flex}.status-countin-badge{color:#fbbf24;border-radius:var(--radius-full);background:#f59e0b2e;border:1px solid #f59e0b99;align-items:center;gap:.5rem;padding:.3rem .85rem;font-size:.8rem;font-weight:700;display:flex}.countin-pulse-dot{background:#f59e0b;border-radius:50%;width:8px;height:8px;box-shadow:0 0 8px #f59e0b}.led-countin-pulse{transform:scale(1.18);color:#000!important;background:#f59e0b!important;border-color:#fbbf24!important;box-shadow:0 0 14px 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#f59e0bcc;font-size:clamp(3rem,9vw,5rem);font-weight:900;line-height:1}.countin-subtext{font-family:var(--font-mono);letter-spacing:.1em;color:#f3f4f6;text-align:center;font-size:clamp(.72rem,2.5vw,.85rem);font-weight:700}.status-time-readout{font-family:var(--font-mono);align-items:center;gap:.35rem;font-size:.88rem;display:flex}.time-current{color:#fff;font-weight:700}.time-divider{color:var(--text-muted)}.time-total{color:var(--text-secondary)}.video-viewport-aspect{background:#000;width:100%;min-height:380px;padding-bottom:44%;position:relative}.youtube-iframe-target{width:100%;height:100%;position:absolute;top:0;left:0}.btn-video-maximize-floating{z-index:15;-webkit-backdrop-filter:blur(6px);color:#fff;border-radius:var(--radius-sm);cursor:pointer;background:#0a0c12bf;border:1px solid #fff3;justify-content:center;align-items:center;padding:.45rem;transition:all .15s;display:flex;position:absolute;top:10px;right:10px}.btn-video-maximize-floating:hover{background:var(--accent-amber);color:#000;border-color:var(--accent-amber);transform:scale(1.05)}.btn-active-accent{color:var(--accent-amber)!important;border-color:var(--accent-amber)!important;background:#f59e0b26!important}:-webkit-any(:fullscreen.player-view-container,:-webkit-full-screen.player-view-container,.player-view-container.is-maximized){--maximized-bar-height:64px;z-index:99999!important;width:100vw!important;max-width:100vw!important;height:100dvh!important;max-height:100dvh!important;box-shadow:none!important;background:#000!important;border:none!important;border-radius:0!important;flex-direction:column!important;justify-content:flex-start!important;align-items:stretch!important;margin:0!important;padding:0!important;display:flex!important;position:fixed!important;inset:0!important;overflow:hidden!important}:is(:fullscreen.player-view-container,:fullscreen.player-view-container,.player-view-container.is-maximized){--maximized-bar-height:64px;z-index:99999!important;width:100vw!important;max-width:100vw!important;height:100dvh!important;max-height:100dvh!important;box-shadow:none!important;background:#000!important;border:none!important;border-radius:0!important;flex-direction:column!important;justify-content:flex-start!important;align-items:stretch!important;margin:0!important;padding:0!important;display:flex!important;position:fixed!important;inset:0!important;overflow:hidden!important}.player-view-container.is-maximized 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#ffffff14;border-radius:999px;align-items:center;gap:.35rem;padding:.2rem .55rem;font-size:.76rem;font-weight:500;display:inline-flex}.global-meta-pill.pill-bars{color:#a78bfa;background:#a78bfa14;border-color:#a78bfa33}.global-meta-pill.pill-bpm{color:#fbbf24;background:#fbbf2414;border-color:#fbbf2433}.global-meta-pill.pill-time-sig{color:#38bdf8;background:#38bdf814;border-color:#38bdf833}.global-loop-notes{border-top:1px dashed #ffffff0f;margin-top:.6rem;padding-top:.5rem}.global-loop-notes-text{color:var(--text-muted);margin:0;font-size:.8rem;font-style:italic;line-height:1.4}.global-library-footer{justify-content:space-between;align-items:center;gap:1rem;padding:.85rem 1.5rem;display:flex}.global-library-footer-hint{color:var(--text-muted);font-size:.78rem}@media 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