*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#4f46e5;--hover:#4338ca;--text:#111827;--muted:#6b7280;--border:#e5e7eb;--bg:#f5f7fb}body{min-height:100vh;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}.page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.shortener-card{width:100%;max-width:560px;background:#fff;border:1px solid var(--border);border-radius:22px;padding:36px;box-shadow:0 20px 50px rgba(15,23,42,.08)}.header{text-align:center;margin-bottom:32px}.logo{width:56px;height:56px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;border-radius:16px;background:#eef2ff;color:var(--primary);font-size:28px;font-weight:700}.header h1{font-size:30px;margin-bottom:8px}.header p{color:var(--muted);font-size:15px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-size:14px;font-weight:600}.form-group label span{color:var(--muted);font-weight:400}.form-group input{width:100%;height:52px;padding:0 15px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text);font-size:15px;outline:none}.form-group input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.1)}.form-group small{display:block;margin-top:7px;color:var(--muted);font-size:12px}#shortenBtn{width:100%;height:52px;border:0;border-radius:12px;background:var(--primary);color:#fff;font-size:15px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px}#shortenBtn:hover{background:var(--hover)}#shortenBtn:disabled{opacity:.7;cursor:not-allowed}.loader{width:18px;height:18px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.hidden{display:none!important}@keyframes spin{to{transform:rotate(360deg)}}.message{margin-top:18px;padding:12px 14px;border-radius:10px;font-size:14px}.message.success{background:#ecfdf5;color:#047857}.message.error{background:#fef2f2;color:#dc2626}.result-box{margin-top:22px;padding:18px;background:#f8fafc;border:1px solid var(--border);border-radius:14px}.result-label{margin-bottom:10px;color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase}.result-row{display:flex;align-items:center;gap:10px}#shortUrl{flex:1;min-width:0;color:var(--primary);font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.copy-btn{height:40px;padding:0 16px;border:0;border-radius:9px;background:#111827;color:#fff;font-weight:600;cursor:pointer}.footer{margin-top:26px;text-align:center;color:#9ca3af;font-size:12px}@media(max-width:600px){.page{padding:16px}.shortener-card{padding:26px 20px}.header h1{font-size:26px}}