.sidebar {
            min-height: 100vh;
            background: #343a40;
        }
        .sidebar .nav-link {
            color: #fff;
        }
        .sidebar .nav-link:hover {
            background: #495057;
        }
        .sidebar .nav-link.active {
            background: #0d6efd;
        }
        .stat-card {
            border-radius: 10px;
            transition: transform 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .pricing-card {
            transition: transform 0.2s;
            border: 2px solid transparent;
        }
        .pricing-card:hover {
            transform: translateY(-5px);
        }
        .pricing-card.popular {
            border-color: #0d6efd;
            position: relative;
        }
        .popular-badge {
            position: absolute;
            top: -10px;
            right: 20px;
            background: #0d6efd;
            color: white;
            padding: 5px 15px;
            border-radius: 15px;
            font-size: 0.8rem;
        }
        .code-block {
            background: #f8f9fa;
            border: 1px solid #e9ecef;
            border-radius: 5px;
            padding: 15px;
            font-family: monospace;
        }
          .signup-container {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .signup-card {
            border: none;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .password-strength {
            height: 5px;
            margin-top: 5px;
            border-radius: 5px;
        }
        .strength-weak { background-color: #dc3545; width: 25%; }
        .strength-medium { background-color: #ffc107; width: 50%; }
        .strength-strong { background-color: #28a745; width: 100%; }
          .login-container {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .login-card {
            border: none;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .visitor-info {
            background: rgba(255,255,255,0.1);
            border-radius: 10px;
            padding: 15px;
            margin-bottom: 20px;
            color: white;
            backdrop-filter: blur(10px);
        }
        .flag-icon {
            width: 20px;
            height: 15px;
            margin-right: 8px;
            border-radius: 2px;
        }
        .password-toggle {
            border-left: 0;
        }
        .password-toggle:hover {
            background-color: #e9ecef;
        }