:root{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}body{background:#f4f6fb;color:#0f172a;margin:0}.container{background:#fff;border-radius:14px;box-shadow:0 8px 30px #02061714;margin:4rem auto;max-width:760px;padding:2rem}input[type=file]{display:block;margin:1rem 0}button{background:#2563eb;border:0;border-radius:8px;color:#fff;cursor:pointer;padding:.7rem 1rem}button:disabled{cursor:not-allowed;opacity:.6}.error{color:#b91c1c;margin-top:1rem}.success{color:#166534;margin-top:1rem}.small{color:#475569;font-size:.9rem}