:root{--bg: #000;--panel: #0a1426;--panel-edge: #1d3354;--cyan: #6cf;--cyan-soft: #aef;--text: #cfe3ff;--text-dim: #6f8db5}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at top,#061229,#000 75%);min-height:100vh;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}#app{max-width:760px;margin:0 auto;padding:48px 20px 80px}header{text-align:center;margin-bottom:36px}h1{margin:0;font-size:34px;font-weight:300;letter-spacing:.32em;text-transform:uppercase;color:var(--cyan-soft);text-shadow:0 0 22px rgba(110,200,255,.4)}.tagline{margin:12px auto 0;max-width:460px;font-size:13px;line-height:1.5;color:var(--text-dim)}.card{background:var(--panel);border:1px solid var(--panel-edge);border-radius:12px;padding:24px;margin-bottom:18px}h2{margin:0 0 16px;font-size:15px;font-weight:500;letter-spacing:.06em;display:flex;align-items:center;gap:10px}.num{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--cyan);color:#04101f;font-size:12px;font-weight:700}.drop{display:flex;align-items:center;justify-content:center;text-align:center;min-height:110px;padding:20px;border:1.5px dashed var(--panel-edge);border-radius:10px;color:var(--text-dim);font-size:14px;cursor:pointer;transition:border-color .2s,color .2s,background .2s}.drop:hover,.drop.drag{border-color:var(--cyan);color:var(--cyan-soft);background:#6ec8ff0d}.drop.small{min-height:70px;font-size:13px}.drop.ready{border-style:solid;border-color:var(--cyan);color:var(--cyan-soft)}.hint{margin:10px 0 0;font-size:12px;color:var(--text-dim)}.mini-spin{display:inline-block;width:18px;height:18px;margin-right:10px;vertical-align:middle;border:2px solid rgba(110,200,255,.2);border-top-color:var(--cyan);border-radius:50%;animation:mini-spin .8s linear infinite}@keyframes mini-spin{to{transform:rotate(360deg)}}.mini-spin[hidden]{display:none}.hint a{color:var(--cyan);text-decoration:none}.hint a:hover{text-decoration:underline}#tl-preview{width:100%;max-height:260px;height:auto;object-fit:contain;background:#000;border-radius:8px;display:block;margin-bottom:10px}.scrub-row{display:flex;align-items:center;gap:8px;margin:2px 0}#scrubber{flex:1;accent-color:var(--cyan)}.icon-btn{height:32px;min-width:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#0d1b33;border:1px solid var(--panel-edge);border-radius:7px;color:var(--cyan-soft);font-size:13px;line-height:1;cursor:pointer;transition:border-color .15s,background .15s}.icon-btn:hover{border-color:var(--cyan);background:#6ec8ff1a}.icon-btn.chev{font-size:18px;padding:0;width:34px;flex:none}.tl-readout{display:flex;justify-content:center;gap:8px;font-size:12px;color:var(--cyan-soft);margin:4px 0 14px;font-variant-numeric:tabular-nums}#scrub-frame{color:var(--text-dim)}.tl-wrap{position:relative;padding-top:22px;margin-bottom:8px}.tl-hover-time{position:absolute;top:0;transform:translate(-50%);padding:2px 6px;background:#ffd166;color:#04101f;font-size:11px;font-weight:700;border-radius:4px;white-space:nowrap;pointer-events:none;font-variant-numeric:tabular-nums;z-index:7}.tl-hover-time[hidden]{display:none}.tl-hover-line{position:absolute;top:22px;height:56px;width:1px;background:#ffd166;pointer-events:none;z-index:7}.tl-hover-line[hidden]{display:none}.timeline{position:relative;display:flex;height:56px;margin-bottom:8px;border-radius:8px;background:#0d1b33;border:1px solid var(--panel-edge);overflow:hidden;touch-action:none;-webkit-user-select:none;user-select:none}.tl-gap{flex:1 1 0;min-width:4px;background:#0d1b33;cursor:crosshair}.tl-section{position:relative;flex:1 1 0;min-width:46px;box-sizing:border-box;display:flex;align-items:center;justify-content:center;background:#6ec8ff2e;border:1px solid var(--cyan);overflow:hidden;cursor:grab}.tl-section.active{background:#6ec8ff5c;box-shadow:inset 0 0 0 2px var(--cyan)}.tl-section.dragging{opacity:.4;cursor:grabbing}.tl-handle{position:absolute;top:0;bottom:0;width:10px;cursor:ew-resize;background:var(--cyan);opacity:0;transition:opacity .12s}.tl-handle.l{left:0}.tl-handle.r{right:0}.tl-section:hover .tl-handle,.tl-section.active .tl-handle{opacity:.65}.tl-tag{display:flex;align-items:center;gap:4px;font-size:10px;font-weight:600;letter-spacing:.04em;color:var(--cyan-soft);white-space:nowrap;pointer-events:none}.tl-num{display:inline-flex;align-items:center;justify-content:center;min-width:15px;height:15px;padding:0 3px;border-radius:4px;background:var(--cyan);color:#04101f;font-size:10px;font-weight:700}.tl-vmark{flex:0 0 26px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:1px;padding-top:1px;background:repeating-linear-gradient(45deg,#d9534f38 0,#d9534f38 7px,#d9534f6b 7px,#d9534f6b 14px);border-left:1px solid #d9534f;border-right:1px solid #d9534f;cursor:pointer}.tl-vmark:hover{background:repeating-linear-gradient(45deg,#d9534f57 0,#d9534f57 7px,#d9534f8c 7px,#d9534f8c 14px)}.tl-v{color:#ff8a87;font-size:15px;line-height:1}.tl-vmark:hover .tl-v{color:#fff}.tl-vn{font-size:9px;font-weight:700;color:#ffb3b1}.tl-ghost{position:absolute;top:0;bottom:0;background:#ffd16640;border:1px dashed #ffd166;pointer-events:none;z-index:4}.tl-insert{position:absolute;top:0;bottom:0;width:3px;background:#ffd166;pointer-events:none;z-index:6}.tl-playhead{position:absolute;top:0;bottom:0;width:2px;background:#fff;pointer-events:none;z-index:5}.tl-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px}.tl-controls .spacer{flex:1}.loop-lbl{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-dim)}.loop-lbl input{accent-color:var(--cyan)}.modes{display:flex;flex-wrap:wrap;gap:8px}.mode{flex:1 1 auto;padding:10px 14px;background:#0d1b33;border:1px solid var(--panel-edge);border-radius:8px;color:var(--text-dim);font-size:13px;cursor:pointer;transition:all .18s}.mode:hover{color:var(--cyan-soft)}.mode.active{background:#6ec8ff1f;border-color:var(--cyan);color:var(--cyan-soft)}.mode-opt{margin-top:16px}.mode-opt label{font-size:13px;color:var(--text-dim);display:flex;align-items:center;gap:10px}.mode-opt input[type=color]{width:44px;height:28px;background:none;border:1px solid var(--panel-edge);border-radius:6px;cursor:pointer}.mode-opt input[type=range]{flex:1;accent-color:var(--cyan)}button.primary,a.primary{display:inline-block;margin-top:6px;padding:13px 26px;background:var(--cyan);color:#04101f;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;transition:filter .18s,opacity .18s}button.primary:hover,a.primary:hover{filter:brightness(1.12)}button.primary:disabled{opacity:.45;cursor:not-allowed}#progress-wrap{margin-top:18px}.bar{height:8px;background:#0d1b33;border-radius:4px;overflow:hidden}.bar-fill{height:100%;width:0%;background:linear-gradient(90deg,#2a7fff,var(--cyan));transition:width .2s}.status{margin:10px 0 0;font-size:12px;color:var(--text-dim)}.status.big{font-size:14px;color:var(--cyan-soft)}#result-video{width:100%;border-radius:8px;background:#000;margin-bottom:16px;display:block}footer{margin-top:40px;text-align:center;font-size:11px;letter-spacing:.08em;color:var(--text-dim);display:flex;justify-content:center;gap:10px;flex-wrap:wrap}