*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5;color:#333}a{color:#1976d2;text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:20px}.header{background:#1976d2;color:#fff;padding:16px 24px;display:flex;justify-content:space-between;align-items:center}.header h1{font-size:1.4rem}.header button{background:#fff3;border:none;color:#fff;padding:8px 16px;border-radius:4px;cursor:pointer}.card{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px;box-shadow:0 1px 3px #0000001a}.card h2{margin-bottom:12px;font-size:1.2rem}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.form-group{margin-bottom:12px}.form-group label{display:block;margin-bottom:4px;font-weight:500;font-size:.9rem}.form-group input,.form-group select,.form-group textarea{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:.95rem}.btn{padding:8px 20px;border:none;border-radius:4px;cursor:pointer;font-size:.95rem}.btn-primary{background:#1976d2;color:#fff}.btn-danger{background:#d32f2f;color:#fff}.btn-sm{padding:4px 12px;font-size:.85rem}table{width:100%;border-collapse:collapse}table th,table td{padding:10px 12px;text-align:left;border-bottom:1px solid #eee}table th{background:#f9f9f9;font-weight:600}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-bottom:20px}.stat-card{background:#fff;border-radius:8px;padding:16px;text-align:center;box-shadow:0 1px 3px #0000001a}.stat-card .value{font-size:1.8rem;font-weight:700;color:#1976d2}.stat-card .label{font-size:.85rem;color:#666;margin-top:4px}.login-page{display:flex;justify-content:center;align-items:center;min-height:100vh}.login-form{width:360px}.nav-links{display:flex;gap:16px;margin-bottom:20px}.nav-links a{padding:8px 16px;background:#fff;border-radius:4px;box-shadow:0 1px 3px #0000001a}.nav-links a.active{background:#1976d2;color:#fff}.tag{display:inline-block;padding:2px 8px;border-radius:12px;font-size:.8rem;background:#e3f2fd;color:#1565c0}