:root{--paper: #f4f6fa;--surface: #ffffff;--ink: #1b2333;--ink-dim: #5f6a80;--line: #e4e8f1;--line-strong: #cdd7e8;--accent: #5b8cff;--accent-strong: #3d6ce0;--accent-deep: #1d4fc4;--amber: #96610a;--amber-bg: #faf0d8;--danger: #d64550;--radius-s: 8px;--radius: 12px;--radius-l: 18px;--shadow-s: 0 1px 2px rgba(23, 34, 58, .05);--shadow: 0 1px 2px rgba(23, 34, 58, .04), 0 12px 32px -16px rgba(23, 34, 58, .16);--ease-out: cubic-bezier(.22, 1, .36, 1)}@media (prefers-color-scheme: dark){:root{--paper: #131720;--surface: #1b202c;--ink: #e6eaf2;--ink-dim: #97a1b5;--line: #2a3242;--line-strong: #3b465c;--accent: #6fa1ff;--accent-strong: #3a6ce6;--accent-deep: #9dbaff;--amber: #e2b45c;--amber-bg: rgba(226, 180, 92, .14);--danger: #ef6b74;--shadow-s: 0 1px 2px rgba(0, 0, 0, .35);--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px -16px rgba(0, 0, 0, .5)}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,Segoe 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11px;font-size:12.5px;border-radius:8px}.icon-btn{appearance:none;display:grid;place-items:center;width:32px;height:32px;padding:0;border:none;border-radius:8px;background:transparent;color:var(--ink-dim);cursor:pointer;transition:background-color .15s ease,color .15s ease}.icon-btn:hover{background:color-mix(in srgb,var(--ink) 7%,transparent);color:var(--ink)}.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:var(--surface);border:1.5px dashed var(--line-strong);border-radius:var(--radius-l);padding:52px 24px 44px;cursor:pointer;transition:border-color .2s ease,background-color .2s ease,box-shadow .25s ease,transform .25s var(--ease-out)}.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent);box-shadow:var(--shadow);outline:none}.dropzone:hover{transform:translateY(-2px)}.dropzone.compact{flex-direction:row;gap:7px;padding:13px 20px;border-radius:var(--radius);background:transparent;color:var(--ink-dim);font-size:13.5px}.dropzone.compact:hover,.dropzone.compact:focus-visible{color:var(--accent-deep);background:color-mix(in srgb,var(--accent) 5%,transparent);box-shadow:none;transform:none}.eq{display:flex;align-items:center;gap:3px;height:46px;margin-bottom:18px}.eq span{width:3px;height:100%;border-radius:2px;background:var(--accent);opacity:.85;transform:scaleY(var(--h, .4));transform-origin:center;animation:eq-breathe var(--dur, 2.6s) var(--delay, 0s) ease-in-out infinite}@keyframes eq-breathe{0%,to{transform:scaleY(var(--lo, .2))}50%{transform:scaleY(var(--hi, .9))}}.drop-title{margin:0;font-size:20px;font-weight:600;letter-spacing:.2px}.drop-sub{margin:6px 0 0;font-size:13px;color:var(--ink-dim)}.drop-formats{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin-top:18px}.chip{font-size:11.5px;line-height:1.5;color:var(--ink-dim);background:var(--paper);border:1px solid 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