:root {
            --primary-color: #2c3e50;
            --secondary-color: #34495e;
            --accent-color: #3498db;
            --light-bg: #ecf0f1;
            --border-color: #bdc3c7;
        }

        body {
            background-color: var(--light-bg);
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: var(--primary-color);
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            margin: 0;
        }

        .login-container {
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            padding: 2.5rem;
            width: 100%;
            max-width: 400px;
            text-align: center;
        }

        .login-header {
            margin-bottom: 2rem;
        }

        .login-header h2 {
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .login-header p {
            color: #7f8c8d;
            font-size: 0.9rem;
        }

        .login-header i {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }

        .form-label {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
            text-align: left;
            display: block;
        }

        .form-control {
            border: 1px solid var(--border-color);
            border-radius: 4px;
            padding: 0.75rem 1rem;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            border-color: var(--accent-color);
            box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
        }

        .btn-primary {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            transition: all 0.3s ease;
            width: 100%;
            margin-top: 1.5rem;
        }

        .btn-primary:hover {
            background-color: #2980b9;
            border-color: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
        }

        .forgot-password {
            margin-top: 1rem;
            font-size: 0.9rem;
        }

        .forgot-password a {
            color: var(--accent-color);
            text-decoration: none;
        }

        .forgot-password a:hover {
            text-decoration: underline;
        }

        .login-footer {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: #7f8c8d;
        }