*{box-sizing:border-box}:root{--bg-primary: #0d0d0d;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--text-primary: #e5e5e5;--text-secondary: #888;--accent: #3b82f6;--success: #22c55e;--warning: #eab308;--error: #ef4444;font-family:SF Mono,Fira Code,Consolas,monospace;line-height:1.5;color:var(--text-primary);background-color:var(--bg-primary)}body{margin:0;min-height:100vh}#root{max-width:600px;margin:0 auto;padding:2rem}.app{display:flex;flex-direction:column;gap:1.5rem}.header{text-align:center}.brand{display:flex;flex-direction:column;gap:.25rem}.logo{margin:0;font-size:2rem;font-weight:700;letter-spacing:-.02em}.logo-accent{color:var(--accent)}.tagline{font-size:.875rem;color:var(--text-secondary);font-weight:400;margin:0}.file-upload{border:2px dashed var(--bg-tertiary);border-radius:8px;padding:3rem 2rem;text-align:center;transition:all .2s ease;cursor:pointer}.file-upload:hover,.file-upload.dragging{border-color:var(--accent);background:#3b82f60d}.file-upload.disabled{opacity:.5;cursor:not-allowed}.file-upload.disabled:hover{border-color:var(--bg-tertiary);background:transparent}.file-upload input[type=file]{display:none}.file-upload label{display:flex;flex-direction:column;align-items:center;gap:.5rem;cursor:pointer}.file-upload.disabled label{cursor:not-allowed}.upload-icon{font-size:2.5rem;color:var(--text-secondary);line-height:1}.upload-hint{font-size:.75rem;color:var(--text-secondary)}.status-card{background:var(--bg-secondary);border-radius:8px;padding:1.5rem}.status-card.success{border:1px solid var(--success)}.status-card.error{border:1px solid var(--error)}.status-header{display:flex;align-items:center;gap:.75rem;font-weight:500;margin-bottom:1rem}.status-icon{font-weight:700;color:var(--accent)}.status-icon.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.status-card.success .status-icon{color:var(--success)}.status-card.error .status-icon{color:var(--error)}.status-hint{font-size:.75rem;color:var(--text-secondary);margin:.5rem 0 0}.progress-bar{height:8px;background:var(--bg-tertiary);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);transition:width .3s ease}.progress-fill.converting{background:var(--warning)}.file-info{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}.file-row{display:flex;align-items:center;gap:.5rem;font-size:.875rem}.file-label{color:var(--text-secondary);min-width:4rem}.file-value{flex:1;color:var(--text-primary);word-break:break-all}.file-size{color:var(--text-secondary);font-size:.75rem}.action-buttons{display:flex;gap:.75rem;flex-wrap:wrap}.btn-primary,.btn-secondary{padding:.75rem 1.5rem;border-radius:6px;font-family:inherit;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.btn-primary{background:var(--accent);color:#fff;border:none}.btn-primary:hover{background:#2563eb}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--bg-tertiary)}.btn-secondary:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-tertiary{padding:.75rem 1.5rem;border-radius:6px;font-family:inherit;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease;background:transparent;color:var(--text-secondary);border:none}.btn-tertiary:hover{color:var(--text-primary)}.error-message{color:var(--error);font-size:.875rem;margin:0 0 1rem}.footer{text-align:center;padding-top:1rem;border-top:1px solid var(--bg-tertiary)}.footer p{font-size:.75rem;color:var(--text-secondary);margin:0}.description{text-align:center;padding:0 1rem}.description p{font-size:.875rem;color:var(--text-secondary);margin:0;line-height:1.6}.description strong{color:var(--text-primary)}.video-player-overlay{position:fixed;inset:0;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.video-player-container{background:var(--bg-secondary);border-radius:8px;max-width:800px;width:100%;overflow:hidden}.video-player-header{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid var(--bg-tertiary)}.video-player-close{background:none;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:0;line-height:1}.video-player-close:hover{color:var(--text-primary)}.video-player{width:100%;display:block;background:#000}.video-player-hint{font-size:.75rem;color:var(--text-secondary);padding:1rem;margin:0;text-align:center}.footer a{color:var(--accent);text-decoration:none}.footer a:hover{text-decoration:underline}@media(max-width:480px){#root{padding:1rem}.logo{font-size:1.5rem}.file-upload{padding:2rem 1rem}.status-card{padding:1rem}.action-buttons{flex-direction:column}.btn-primary,.btn-secondary{width:100%;text-align:center}}