.spinner{display:inline-block;width:1rem;height:1rem;margin-right:.5rem;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem;background:radial-gradient(circle at 15% 10%,rgba(37,99,235,.12),transparent 35%),radial-gradient(circle at 85% 0%,rgba(99,102,241,.1),transparent 30%),#f8fafc}.card{width:100%;max-width:580px;background:#fff;border:1px solid #e2e8f0;border-radius:1.25rem;padding:2.25rem 2rem;box-shadow:0 4px 6px #0f172a0a,0 20px 40px #0f172a14;animation:fadeIn .35s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.header{text-align:center;margin-bottom:2rem}.logo{display:block;margin:0 auto 1rem;border-radius:1rem;box-shadow:0 8px 20px #2563eb40}.header h1{margin:0;font-size:2rem;font-weight:700;color:#0f172a;letter-spacing:-.02em}.subtitle{margin:.65rem auto 0;max-width:420px;color:#64748b;font-size:.98rem;line-height:1.5}.form{display:flex;flex-direction:column;gap:.75rem}.form label{font-size:.875rem;font-weight:600;color:#334155}.checkbox-row{display:flex;align-items:center;gap:.6rem;margin-top:.25rem;font-size:.92rem;color:#475569;cursor:pointer;-webkit-user-select:none;user-select:none}.checkbox-row input{width:1rem;height:1rem;accent-color:#2563eb;cursor:pointer}.dlt-header-field{margin-top:.25rem;padding:.85rem 1rem;border:1px solid #e2e8f0;border-radius:.75rem;background:#f8fafc}.dlt-header-field label{display:block;margin-bottom:.4rem}.dlt-header-field input{width:100%;padding:.75rem 1rem;border:1px solid #cbd5e1;border-radius:.65rem;font-size:1rem;letter-spacing:.06em;text-transform:uppercase;outline:none}.dlt-header-field input:focus{border-color:#2563eb;box-shadow:0 0 0 4px #2563eb1f}.dlt-hint{margin:.5rem 0 0;font-size:.8rem;color:#64748b;line-height:1.45}.dlt-hint code{font-size:.75rem;word-break:break-all}.form input{width:100%;padding:.9rem 1rem;border:1px solid #cbd5e1;border-radius:.75rem;font-size:1rem;outline:none;transition:border-color .2s ease,box-shadow .2s ease}.form input:focus{border-color:#2563eb;box-shadow:0 0 0 4px #2563eb1f}.form input:disabled{background:#f8fafc;cursor:not-allowed}.primary-btn{margin-top:.35rem;display:inline-flex;align-items:center;justify-content:center;padding:.9rem 1rem;border:none;border-radius:.75rem;background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,opacity .2s ease;box-shadow:0 8px 20px #2563eb47}.primary-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 10px 24px #2563eb52}.primary-btn:active:not(:disabled){transform:translateY(0)}.primary-btn:disabled{opacity:.75;cursor:not-allowed;transform:none}.message{margin:1.25rem 0 0;padding:.8rem 1rem;border-radius:.75rem;font-size:.95rem;animation:fadeIn .25s ease}.message.error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.message.success{background:#ecfdf5;color:#047857;border:1px solid #bbf7d0}.message.info{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}.result{margin-top:.25rem}.short-url-box{margin-top:.85rem;padding:1rem;border:1px solid #e2e8f0;border-radius:.85rem;background:linear-gradient(180deg,#f8fafc,#fff)}.short-url-text{margin:0 0 .85rem;color:#1e40af;font-weight:600;word-break:break-all;line-height:1.45}.action-row{display:flex;flex-wrap:wrap;gap:.65rem}.secondary-btn{padding:.55rem 1rem;border:1px solid #cbd5e1;border-radius:.6rem;background:#fff;color:#0f172a;font-size:.9rem;font-weight:600;cursor:pointer;text-decoration:none;transition:background .2s ease,border-color .2s ease}.secondary-btn:hover{background:#f8fafc;border-color:#94a3b8}.open-btn{display:inline-flex;align-items:center}.footer{margin-top:1.25rem;text-align:center;color:#94a3b8;font-size:.8rem}.footer p{margin:0}@media(max-width:480px){.card{padding:1.75rem 1.25rem}.header h1{font-size:1.65rem}}:root{font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5;font-weight:400;color:#0f172a;background:#f8fafc;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh}button,input{font:inherit}