:root{--accent:#4f46e5;--accent-hover:#4338ca;--bg:#0b0d12;--surface:#14171f;--surface-hover:#1b1f2a;--surface-translucent:rgba(20,23,31,0.72);--border:#262b38;--text:#e6e8ec;--text-muted:#9aa1b1;--danger:#f87171;--success:#4ade80;--warning:#facc15;--radius:12px;--radius-sm:8px;--shadow-color:0 0 0;--shadow-sm:0 1px 2px rgba(var(--shadow-color)/0.24);--shadow-md:0 8px 24px rgba(var(--shadow-color)/0.28);color-scheme:dark}@media (prefers-color-scheme:light){:root:not([data-theme=dark]){--accent:#4f46e5;--accent-hover:#4338ca;--bg:#f5f5f7;--surface:#ffffff;--surface-hover:#f0f0f2;--surface-translucent:rgba(255,255,255,0.72);--border:#d8d8dc;--text:#1d1d1f;--text-muted:#6e6e73;--danger:#dc2626;--success:#16a34a;--warning:#b45309;--shadow-color:60 60 67;--shadow-sm:0 1px 2px rgba(var(--shadow-color)/0.08);--shadow-md:0 8px 24px rgba(var(--shadow-color)/0.12);color-scheme:light}}:root[data-theme=light]{--accent:#4f46e5;--accent-hover:#4338ca;--bg:#f5f5f7;--surface:#ffffff;--surface-hover:#f0f0f2;--surface-translucent:rgba(255,255,255,0.72);--border:#d8d8dc;--text:#1d1d1f;--text-muted:#6e6e73;--danger:#dc2626;--success:#16a34a;--warning:#b45309;--shadow-color:60 60 67;--shadow-sm:0 1px 2px rgba(var(--shadow-color)/0.08);--shadow-md:0 8px 24px rgba(var(--shadow-color)/0.12);color-scheme:light}*{box-sizing:border-box}body,html{padding:0;margin:0}body{background:var(--bg);color:var(--text);font-family:Helvetica Neue,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background-color .25s ease,color .25s ease}a{color:inherit}button,input,select,textarea{font:inherit;color:inherit}input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]):not([type=file]),select,textarea{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.6rem .75rem;transition:background-color .25s ease,border-color .15s ease}input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]):not([type=file]):focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px}input:disabled,select:disabled,textarea:disabled{opacity:.7;cursor:not-allowed}.select-compact{padding:.2rem .4rem;border-radius:var(--radius-sm);font-size:.8rem}button{transition:background-color .15s ease,border-color .15s ease,transform .1s ease}button:not(:disabled):active{transform:scale(.97)}.page-loading{padding:3rem;text-align:center;color:var(--text-muted)}.shell{min-height:100vh;display:flex;flex-direction:column}.shell-header{position:-webkit-sticky;position:sticky;top:0;z-index:10;justify-content:space-between;padding:.75rem 1.5rem;border-bottom:1px solid var(--border);background:var(--surface-translucent);backdrop-filter:blur(20px) saturate(1.6);-webkit-backdrop-filter:blur(20px) saturate(1.6);transition:background-color .25s ease,border-color .25s ease}.shell-brand,.shell-header{display:flex;align-items:center}.shell-brand{font-weight:600;font-size:1.1rem;letter-spacing:-.01em;text-decoration:none;gap:.5rem}.shell-brand-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);display:inline-block}.shell-nav{display:flex;align-items:center;gap:1.25rem;font-size:.9rem}.shell-nav a{text-decoration:none;color:var(--text-muted);transition:color .15s ease}.shell-nav a:hover{color:var(--text)}.shell-user{display:flex;align-items:center;gap:.75rem;font-size:.85rem;color:var(--text-muted)}.shell-main{flex:1 1;max-width:1100px;width:100%;margin:0 auto;padding:2rem 1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);padding:.55rem 1rem;font-size:.9rem;font-weight:500;cursor:pointer}.btn:hover{background:var(--surface-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:white;box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-icon{display:flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;padding:0;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer}.btn-icon:hover{background:var(--surface-hover);color:var(--text)}.field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem}.field label{font-size:.85rem;color:var(--text-muted)}.field input,.field textarea{width:100%}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow-sm);transition:background-color .25s ease,border-color .25s ease}.error-text{color:var(--danger);font-size:.9rem}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem}.auth-card{width:100%;max-width:380px;box-shadow:var(--shadow-md)}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:1.25rem;gap:1.25rem}.video-card{position:relative}.video-card-drag{text-decoration:none;display:block}.video-thumb{position:relative;width:100%;aspect-ratio:16/9;background:var(--surface-hover);border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:.8rem;border:1px solid var(--border);transition:box-shadow .2s ease,transform .2s ease}.video-quick-delete{position:absolute;top:.4rem;right:.4rem;width:1.8rem;height:1.8rem;background:rgba(0,0,0,.55);border-color:transparent;color:white;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.video-quick-delete:hover{background:var(--danger)}.video-card:hover .video-thumb{box-shadow:var(--shadow-md);transform:translateY(-2px)}.video-thumb img{width:100%;height:100%;object-fit:cover}.video-title{margin-top:.6rem;font-size:.95rem;font-weight:600;letter-spacing:-.005em}.badge{display:inline-block;font-size:.7rem;font-weight:500;padding:.15rem .5rem;border-radius:999px;border:1px solid var(--border);color:var(--text-muted);margin-top:.35rem}.badge-processing{color:var(--warning);border-color:var(--warning)}.badge-succeeded{color:var(--success);border-color:var(--success)}.badge-failed{color:var(--danger);border-color:var(--danger)}.badge-partial{color:var(--warning);border-color:var(--warning)}.progress-bar{width:100%;height:8px;background:var(--surface-hover);border-radius:999px;overflow:hidden;border:1px solid var(--border)}.progress-bar-fill{height:100%;background:var(--accent);transition:width .2s ease}.view-toggle{display:inline-flex;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.view-toggle-btn{display:flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;background:var(--surface);color:var(--text-muted);border:none;cursor:pointer}.view-toggle-btn+.view-toggle-btn{border-left:1px solid var(--border)}.view-toggle-btn:hover{background:var(--surface-hover);color:var(--text)}.view-toggle-btn.active{background:var(--accent);color:white}.dnd-dragging{opacity:.4}.dnd-drop-target{transition:outline-color .12s ease,background-color .12s ease;outline:2px solid transparent;outline-offset:2px;border-radius:var(--radius)}.dnd-drop-target.dnd-drop-over{outline-color:var(--accent);background-color:color-mix(in srgb,var(--accent) 12%,transparent)}.library-row{padding:.6rem .5rem;border-top:1px solid var(--border);text-decoration:none;color:inherit}.library-row,.library-row-drag{display:flex;align-items:center;gap:.75rem}.library-row-drag{flex:1 1;min-width:0}.library-row:first-child{border-top:none}.library-row:hover{background:var(--surface-hover)}.library-row>.btn-icon{flex-shrink:0}.library-row-thumb{width:64px;aspect-ratio:16/9;flex-shrink:0;border-radius:6px;overflow:hidden;background:var(--surface-hover);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-muted)}.library-row-thumb img{width:100%;height:100%;object-fit:cover}.library-row-name{flex:1 1;min-width:0;font-size:.9rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}