:root{--primary: #4f7fb3;--primary-dark: #1f2a36;--secondary: #c0c7d1;--bg: #f5f7fb;--panel: #ffffff;--border: #d9e2ec;--text: #243444;--muted: #607080;--success: #1f8f55;--danger: #c0392b;--shadow: 0 16px 40px rgba(31, 42, 54, .08)}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}.admin-card{background:var(--panel);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow)}