* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        .login-left {
            flex: 1;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .login-left::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><linearGradient id="grad1" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%23667eea;stop-opacity:0.8" /><stop offset="100%" style="stop-color:%23764ba2;stop-opacity:0.8" /></linearGradient></defs><circle cx="200" cy="200" r="150" fill="url(%23grad1)" opacity="0.3"/><circle cx="800" cy="300" r="200" fill="url(%23grad1)" opacity="0.2"/><circle cx="500" cy="700" r="180" fill="url(%23grad1)" opacity="0.25"/><path d="M0,500 Q250,300 500,500 T1000,500 L1000,1000 L0,1000 Z" fill="rgba(255,255,255,0.1)"/></svg>') no-repeat center center;
            background-size: cover;
            opacity: 0.6;
        }

        .login-left-content {
            text-align: center;
            color: white;
            z-index: 2;
            position: relative;
            padding: 40px;
        }

        .login-left-content h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .login-left-content p {
            font-size: 1.2rem;
            opacity: 0.9;
            line-height: 1.6;
            margin-bottom: 2rem;
        }

        .feature-highlights {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            text-align: left;
        }

        .feature-highlight {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.75rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }

        .feature-highlight i {
            font-size: 1.5rem;
            color: #ffffff;
        }

        .login-right {
            flex: 1;
            background: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px;
        }

        .form-container {
            width: 100%;
            max-width: 440px;
            position: relative;
        }

        /* .form-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            background-size: 300% 100%;
            animation: gradient 3s ease infinite;
            margin-bottom: 20px;
        } */

        @keyframes gradient {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .logo {
            text-align: center;
            margin-bottom: 32px;
        }

        .logo i {
            font-size: 48px;
            color: #667eea;
            margin-bottom: 16px;
        }

        .logo h1 {
            font-size: 28px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 8px;
        }

        .logo p {
            color: #6b7280;
            font-size: 16px;
            font-weight: 400;
        }

        .form-group {
            margin-bottom: 24px;
            position: relative;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: #374151;
            margin-bottom: 8px;
        }

        .form-input {
            width: 100%;
            padding: 16px 20px;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            font-size: 16px;
            transition: all 0.2s ease;
            background: #ffffff;
            color: #1f2937;
        }

        .form-input:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
        }

        .form-input::placeholder {
            color: #9ca3af;
        }

        .password-toggle {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: #9ca3af;
            cursor: pointer;
            font-size: 16px;
            padding: 4px;
        }

        .password-toggle:hover {
            color: #667eea;
        }

        .forgot-password {
            text-align: right;
            margin-bottom: 24px;
        }

        .forgot-password a {
            color: #667eea;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
        }

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

        .btn-primary {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-primary:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

        .divider {
            position: relative;
            text-align: center;
            margin: 32px 0;
            color: #9ca3af;
            font-size: 14px;
        }

        .divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: #e5e7eb;
        }

        .divider span {
            background: rgba(255, 255, 255, 0.95);
            padding: 0 16px;
        }

        .btn-google {
            width: 100%;
            padding: 16px;
            background: #ffffff;
            color: #374151;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-bottom: 24px;
        }

        .btn-google:hover {
            border-color: #d1d5db;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .google-icon {
            width: 20px;
            height: 20px;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%234285F4" d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"/><path fill="%2334A853" d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"/><path fill="%23FBBC05" d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"/><path fill="%23EA4335" d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"/></svg>') no-repeat center;
            background-size: contain;
        }

        .signup-link {
            text-align: center;
            margin-top: 24px;
            color: #6b7280;
            font-size: 14px;
        }

        .signup-link a {
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
        }

        .signup-link a:hover {
            text-decoration: underline;
        }

        .alert {
            padding: 12px 16px;
            border-radius: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            font-weight: 500;
        }

        .alert-success {
            background: #d1fae5;
            color: #065f46;
            border: 1px solid #a7f3d0;
        }

        .alert-error {
            background: #fee2e2;
            color: #991b1b;
            border: 1px solid #fca5a5;
        }

        .loading-spinner {
            display: inline-block;
            width: 16px;
            height: 16px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top: 2px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-right: 8px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @media (max-width: 768px) {
            .login-container {
                flex-direction: column;
            }

            .login-left {
                min-height: 40vh;
            }

            .login-left-content h1 {
                font-size: 2.5rem;
            }

            .login-right {
                padding: 24px;
            }

            .form-container {
                max-width: 100%;
            }

            .form-input, .btn-primary, .btn-google {
                padding: 14px 16px;
                font-size: 15px;
            }

            .feature-highlights {
                display: none;
            }
        }