:root{--bg: #0b1020;--card: #151a2e;--text: #e8eaf3;--muted: #a9b1c6;--accent: #4f80ff;--danger: #ff6b6b;--success: #22c55e;--border: #2a2f45}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:linear-gradient(180deg,var(--bg),#0f1630);color:var(--text)}.container{max-width:720px;margin:40px auto;padding:0 16px}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:0 10px 30px #00000040}h1,h2,h3{margin:0 0 12px}p{color:var(--muted)}label{display:block;margin:12px 0 6px}input,button,textarea,select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:#0f1430;color:var(--text);font-size:16px}input[type=checkbox]{width:auto;transform:scale(1.25);margin-right:10px}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}button{cursor:pointer;border:1px solid transparent;background:linear-gradient(180deg,#4f80ff,#3a65e8);font-weight:600;transition:transform .05s,opacity .2s}button:disabled{opacity:.6;cursor:not-allowed}.helper{font-size:12px;color:var(--muted)}.error{color:var(--danger);font-size:13px;margin-top:4px}.success{color:var(--success);font-size:13px;margin-top:4px}.badge{display:inline-block;padding:4px 8px;border-radius:999px;font-size:12px;background:#0e1a44;border:1px solid var(--border);color:var(--muted)}.footer-note{margin-top:8px;font-size:12px;color:var(--muted)}.link{color:var(--accent);text-decoration:none}.link:hover{text-decoration:underline}.header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.header-left img{height:80px;width:auto;display:block}.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.25);border-top-color:#ffffffd9;border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}