:root{--bg: #f5f7fa;--surface: #ffffff;--surface-2: #eef1f5;--text: #1a1a2e;--text-2: #4a4a6a;--primary: #00377b;--primary-2: #002a5e;--accent: #e2001a;--danger: #e2001a;--warning: #f59e0b;--success: #22c55e;--border: #d1d5db;--radius: 14px;--shadow: 0 4px 20px rgba(0,0,0,.06);--glow: none;--card-bg: #ffffff;--topbar-height: 57px}[data-theme=dark]{--bg: #0a0a12;--surface: #13131f;--surface-2: #1a1a2e;--text: #e0e0ff;--text-2: #a0a0cc;--primary: #3b82f6;--primary-2: #60a5fa;--accent: #22d3ee;--danger: #f87171;--warning: #fbbf24;--success: #34d399;--border: #2a2a45;--radius: 14px;--shadow: 0 4px 30px rgba(0,0,0,.4);--glow: 0 0 12px rgba(59,130,246,.35);--card-bg: #13131f}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;color:var(--text);transition:background .3s,color .3s;min-height:100vh}body:not([class^=bg-]){background:var(--bg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 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