:root{font-family:Inter,system-ui,sans-serif;color:#0f172a;background:#f8fafc}body{margin:0;min-height:100vh;display:grid;place-items:center}.shell{width:min(760px,92vw)}.card{background:white;border:1px solid #e2e8f0;border-radius:24px;padding:32px;box-shadow:0 24px 80px #0f172a14}.eyebrow{text-transform:uppercase;letter-spacing:.16em;color:#2563eb;font-weight:700;font-size:12px}h1{font-size:clamp(32px,6vw,56px);line-height:1;margin:0 0 16px}.dropzone{display:grid;place-items:center;min-height:180px;border:2px dashed #94a3b8;border-radius:20px;margin:24px 0;cursor:pointer;background:#f8fafc}.dropzone:focus-within{outline:3px solid #93c5fd}input{max-width:90%}button,.download{border:0;border-radius:12px;background:#2563eb;color:white;padding:12px 18px;font-weight:700;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}progress{width:100%;height:16px;margin-top:20px}#download{display:inline-block;margin-top:16px;color:#2563eb;font-weight:700}