:root{font-family:Manrope,Inter,system-ui,sans-serif;color:#dcdedf;background:#131922}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#131922}.app{max-width:900px;margin:0 auto;padding:32px 20px 48px}header h1{margin:0 0 8px;font-size:28px}header p{margin:0;color:#c9cedc}.video-card{margin-top:24px;padding:16px;background:#192431;border-radius:16px;box-shadow:0 10px 30px #0006}video{width:100%;border-radius:12px}.video-wrapper{position:relative}.video-player.hidden{opacity:0;pointer-events:none}.video-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#131922cc;border-radius:12px}.refresh-icon{width:56px;height:56px;border-radius:50%;border:none;background:#278df7e6;color:#fff;font-size:28px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 12px 24px #278df766;transition:transform .2s ease}.refresh-icon span{line-height:1}.refresh-icon:hover{transform:translateY(-2px) scale(1.05)}.timeline{display:grid;gap:16px;margin-top:20px;padding:16px;background:#192431;border-radius:16px}.range-labels{display:flex;justify-content:space-between;font-weight:600;color:#cfd6e5}.timeline-slider{position:relative;height:28px;display:flex;align-items:center;padding:0}.timeline-bar{position:absolute;left:0;right:0;background:#0f1a2bf2;height:6px;border-radius:999px;overflow:visible}.timeline-bar:after{height:0}.timeline-fill{position:absolute;height:100%;border-radius:999px;background:linear-gradient(90deg,#ffd45c,#ffb401);transition:left .2s ease,width .2s ease;box-shadow:0 0 18px #ffbe2eb3}@keyframes highlightPulse{0%,to{filter:brightness(.9)}50%{filter:brightness(1.2)}}.timeline-handle{position:absolute;width:100%;height:40px;background:transparent;-webkit-appearance:none;-moz-appearance:none;appearance:none;pointer-events:none}.timeline-handle::-webkit-slider-thumb{pointer-events:all;width:22px;height:22px;background:#fff;border-radius:50%;border:2px solid rgba(0,0,0,.25);transition:transform .2s ease;cursor:ew-resize}.timeline-handle::-webkit-slider-thumb:hover{transform:scale(1.12)}.timeline-handle::-moz-range-thumb{pointer-events:all;width:22px;height:22px;background:#fff;border-radius:50%;border:2px solid rgba(0,0,0,.25);transition:transform .2s ease;cursor:ew-resize}.timeline-handle::-moz-range-thumb:hover{transform:scale(1.1)}.timeline-handle::-moz-range-track{background:transparent}.timeline-handle{pointer-events:none}.timeline-handle.start-handle{z-index:3;transform:translate(-8px)}.timeline-handle.end-handle{z-index:4}.range label{display:block;margin-bottom:6px;color:#e3e6f2;font-weight:600}.range input[type=range]{width:100%;accent-color:#f5c542}.actions{margin-top:20px;display:flex;flex-direction:column;gap:12px}button{background:#278df7;color:#f5f7fb;border:none;border-radius:12px;padding:12px 20px;font-size:16px;font-weight:600;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}.status{color:#dcdedf;background:#192431;padding:10px 12px;border-radius:10px}.status-warning{background:#24101b;color:#ffdcd0}.status .hint{margin:4px 0 0;color:#c3cfe2;font-size:13px}.debug-terminal{margin-top:16px;padding:10px 12px;border-radius:12px;background:#0d131d;color:#9aa5c0;font-size:12px;font-family:JetBrains Mono,Fira Code,monospace;box-shadow:inset 0 0 0 1px #adb9d733;line-height:1.4;max-height:140px;overflow-y:auto}.terminal-header{font-weight:600;margin-bottom:6px;color:#cbd5ff}.quality-grid{margin-top:16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}.gif-action-row{margin-top:14px;display:flex;justify-content:center}.gif-button{background:linear-gradient(135deg,#ff9f29,#ffc95c);color:#1c1f2f;border:none;border-radius:18px;padding:10px 22px;font-size:16px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;display:inline-flex;align-items:center;gap:10px;box-shadow:0 12px 30px #ffb93cb3;cursor:pointer;animation:pulseGlow 2.5s ease-in-out infinite}.gif-button:disabled{opacity:.6;cursor:not-allowed;animation:none;box-shadow:none}.gif-icon{font-size:20px;animation:spin 4s linear infinite}@keyframes pulseGlow{0%,to{box-shadow:0 12px 30px #ffb93c80}50%{box-shadow:0 16px 40px #ffcf5ecc;transform:translateY(-1px) scale(1.01)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.quality-button{border:1px solid transparent;border-radius:16px;padding:14px;font-size:14px;font-weight:600;background:#111826;color:#dcdedf;cursor:pointer;transition:background .2s ease,border .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;align-items:center;gap:4px}.quality-button small{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:#9aa5c0}.quality-button.active{background:linear-gradient(135deg,#278df7,#4ca5ff);border-color:transparent;box-shadow:0 10px 30px #278df766;color:#fff}@media (max-width: 600px){.app{padding:24px 16px 40px}}