:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1e222b;--line:#2a2f3a;--text:#e6e9ef;--muted:#8b93a3;--accent:#5b8cff;--accent-2:#3a6bf0;--good:#3fb868;--good-2:#2f9e54;--bad:#ff6b6b;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);overscroll-behavior-y:contain;-webkit-tap-highlight-color:transparent;margin:0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.hidden{display:none!important}#app{max-width:1100px;padding:max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));margin:0 auto}.topbar{justify-content:space-between;align-items:center;padding:8px 4px 20px;display:flex}.topbar h1{letter-spacing:.5px;margin:0;font-size:22px}.modes{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:3px;display:inline-flex}.modes button,.seg button{color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;padding:8px 18px;font-size:14px}.modes button.active,.seg button.active{background:var(--accent-2);color:#fff}.panel{grid-template-columns:360px 1fr;align-items:start;gap:20px;display:grid}.panel.receiver{grid-template-columns:1fr 360px}@media (width<=820px){.panel,.panel.receiver{grid-template-columns:1fr}.sender .stage{order:-1}.modes button,.seg button{padding:11px 20px}.actions{flex-direction:column;align-items:stretch}.actions .primary,.actions .btn{width:100%;padding:14px;font-size:16px}.sender .actions,.receiver .controls>.actions{z-index:20;padding:12px max(16px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));background:var(--bg);border-top:1px solid var(--line);margin:0;position:fixed;inset:auto 0 0;box-shadow:0 -8px 24px #00000059}.sender .controls,.receiver .controls{padding-bottom:calc(76px + env(safe-area-inset-bottom))}}.controls{flex-direction:column;gap:14px;display:flex}.seg{background:var(--panel);border:1px solid var(--line);border-radius:9px;width:fit-content;padding:3px;display:inline-flex}.dropzone{border:1.5px dashed var(--line);min-height:120px;color:var(--muted);text-align:center;cursor:pointer;border-radius:12px;justify-content:center;align-items:center;padding:16px;transition:border-color .15s,background .15s;display:flex}.dropzone.drag{border-color:var(--accent);background:#5b8cff14}.dropzone.locked{pointer-events:none;opacity:.5}textarea{resize:vertical;background:var(--panel);width:100%;min-height:120px;color:var(--text);border:1px solid var(--line);font:inherit;border-radius:10px;padding:10px}textarea,select{font-size:16px}.grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.grid label{color:var(--muted);align-content:start;gap:6px;font-size:13px;display:grid}.grid input[type=range]{width:100%}.grid output{font-variant-numeric:tabular-nums;color:var(--text)}select{background:var(--panel);color:var(--text);border:1px solid var(--line);font:inherit;border-radius:8px;padding:7px}.warn{color:#f0c674;margin:0;font-size:12.5px}.stats{grid-template-columns:1fr 1fr;gap:8px;margin:0;display:grid}.stats>div{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px}.stats dt{color:var(--muted);text-transform:uppercase;letter-spacing:.4px;font-size:11.5px}.stats dd{font-variant-numeric:tabular-nums;margin:4px 0 0;font-size:18px}button.primary,.btn{background:var(--panel-2);color:var(--text);border:1px solid var(--line);cursor:pointer;font:inherit;text-align:center;border-radius:9px;padding:10px 16px;text-decoration:none;display:inline-block}button.primary,.btn.primary{background:var(--accent-2);border-color:var(--accent-2);color:#fff}button.success,.btn.success{background:var(--good-2);border-color:var(--good-2);color:#fff}button:disabled{opacity:.45;cursor:not-allowed}@media (hover:hover){button.primary:not(:disabled):hover,.btn:not(:disabled):hover{filter:brightness(1.1)}}button.primary:not(:disabled):active,.btn:not(:disabled):active{transform:translateY(1px)}.actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.sender .actions .primary,.receiver .controls>.actions .primary{width:100%}.stage{background:var(--panel);border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:center;gap:10px;padding:16px;display:flex;position:relative}.stage canvas{aspect-ratio:1;background:var(--panel-2);width:100%;max-width:640px;image-rendering:pixelated;border-radius:8px}.stage-empty{text-align:center;color:var(--muted);pointer-events:none;justify-content:center;align-items:center;padding:0 24px;font-size:14px;line-height:1.5;display:none;position:absolute;inset:16px}.stage.empty .stage-empty{display:flex}.stage.empty .frame-counter{visibility:hidden}.stage video{aspect-ratio:3/4;object-fit:cover;background:var(--panel-2);border-radius:8px;width:100%;max-width:480px}.frame-counter{font-variant-numeric:tabular-nums;color:var(--muted);font-size:14px}.progress{background:var(--panel);border:1px solid var(--line);border-radius:999px;height:8px;overflow:hidden}.progress .bar{background:var(--accent);width:0;height:100%;transition:width .15s}.hint{color:var(--muted);margin:0;font-size:13px}.hint.bad{color:var(--bad)}.result{border-top:1px solid var(--line);flex-direction:column;gap:10px;padding-top:12px;display:flex}.result textarea{min-height:140px}.filemeta{margin:0;font-size:14px}