/* CSS reset & variables */
        :root {
            --primary: #4F46E5;
            --primary-hover: #4338CA;
            --bg-color: #f3f4f6;
            --text-main: #111827;
            --text-muted: #6B7280;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            display: flex;
            height: 100vh;
            background-color: var(--bg-color);
            color: var(--text-main);
        }

        .login-container {
            display: flex;
            width: 100%;
            height: 100%;
        }

        /* Left side - Login Form */
        .login-left {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 4rem;
            background: #ffffff;
            position: relative;
        }

        .form-wrapper {
            width: 100%;
            max-width: 400px;
            animation: fadeIn 1s ease-in-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .login-header {
            margin-bottom: 2.5rem;
            text-align: left;
        }

        .login-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: #111827;
        }

        .login-header p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 0.85rem 1rem;
            border: 1px solid #d1d5db;
            border-radius: 35px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: #f9fafb;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
            background: #ffffff;
        }

        .btn-submit {
            width: 100%;
            padding: 0.85rem;
            background-color: var(--primary);
            color: #ffffff;
            border: none;
            border-radius: 35px;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            margin-top: 1rem;
            transition: background-color 0.3s ease, transform 0.1s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
        }

        .btn-submit:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 6px 8px -1px rgba(79, 70, 229, 0.3);
        }

        .btn-submit:active {
            transform: scale(0.98);
        }

        /* Right side - Image & Content */
        .login-right {
            flex: 1.2;
            background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 4rem;
        }

        .login-right::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1471&q=80') center/cover;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }

        .right-content {
            position: relative;
            z-index: 10;
            color: white;
            text-align: center;
            max-width: 500px;
            animation: fadeIn 1.2s ease-in-out;
        }

        .right-content h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            text-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }

        .right-content p {
            font-size: 1.15rem;
            line-height: 1.6;
            opacity: 0.9;
        }

        /* Responsive styling */
        @media (max-width: 768px) {
            .login-right {
                display: none;
            }

            .login-left {
                padding: 2rem;
            }
        }

        /* Alert Message */
        .alert {
            padding: 1rem;
            margin-bottom: 1.5rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            display: flex;
            align-items: center;
        }

        .alert-error {
            background-color: #fee2e2;
            color: #b91c1c;
            border: 1px solid #fecaca;
        }