:root{color-scheme:dark;--bg: #0f1419;--panel: #1a2332;--border: #2d3a4f;--text: #e8eef7;--muted: #8b9cb3;--accent: #3b82f6;--danger: #ef4444;--warn: #f97316;--ok: #22c55e;--topnav-bg: #121a24;--map-visual-gradient: linear-gradient(180deg, #152030 0%, #0d1520 100%);--map-pin-ring: #fff;--row-hover: rgba(59, 130, 246, .08);--alert-snapshot-gradient: linear-gradient(135deg, var(--bg) 0%, #1e2838 100%);--font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}html[data-theme=light]{color-scheme:light;--bg: #f1f5f9;--panel: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--accent: #2563eb;--danger: #dc2626;--warn: #ea580c;--ok: #16a34a;--topnav-bg: #ffffff;--map-visual-gradient: linear-gradient(180deg, #e2e8f0 0%, #cbd5e1 100%);--map-pin-ring: #0f172a;--row-hover: rgba(37, 99, 235, .1);--alert-snapshot-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%)}*{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}#app{min-height:100vh}a{color:var(--accent)}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;position:relative}.login-theme-toggle{position:fixed;top:16px;right:16px;z-index:30}.login-card{width:100%;max-width:380px;background:transparent;border:none;border-radius:0;padding:0}.surv-login-logo{display:block;width:72px;height:72px;margin:0 auto 14px;object-fit:contain;background:transparent}.login-card h1{margin:0 0 6px;font-size:1.25rem}.login-card p{margin:0 0 20px;font-size:.8rem;color:var(--muted)}.login-card label{display:block;font-size:.75rem;color:var(--muted);margin-bottom:4px}.login-card input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);margin-bottom:14px}.login-error{color:var(--danger);font-size:.8rem;margin-bottom:12px}.icon-btn-plain{width:40px;height:40px;border-radius:9999px;border:none;background:transparent;color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;padding:0;flex-shrink:0}.icon-btn-plain:hover:not(:disabled){background:var(--row-hover)}.icon-btn-plain:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.icon-btn-plain:disabled{opacity:.55;cursor:not-allowed}.icon-btn.login-signin-btn{width:100%;min-height:44px;border-radius:10px;border:1px solid var(--border);background:var(--panel);color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;gap:8px}.icon-btn.login-signin-btn:hover:not(:disabled){border-color:var(--accent)}.icon-btn.login-signin-btn:disabled{opacity:.55;cursor:not-allowed}