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

        body  {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #7f1d1d 0%, #b91c1c 50%, #dc2626 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .auth-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 40px;
            width: 100%;
            max-width: 450px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        .auth-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #ef4444, #dc2626, #b91c1c);
        }

        .logo {
            text-align: center;
            margin-bottom: 30px;
        }

        .logo h1 {
            color: #b91c1c;
            font-size: 2.5rem;
            font-weight: bold;
            margin-bottom: 5px;
        }

        .logo p {
            color: #6b7280;
            font-size: 0.9rem;
        }

        .tab-buttons {
            display: flex;
            background: #f3f4f6;
            border-radius: 12px;
            padding: 4px;
            margin-bottom: 30px;
        }

        .tab-button {
            flex: 1;
            background: none;
            border: none;
            padding: 12px 20px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            color: #6b7280;
        }

        .tab-button a {
            color: #7f1d1d;
            text-decoration: none;
        }

        .tab-button.active {
            background: linear-gradient(135deg, #ef4444, #dc2626);
            box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
        }

        .tab-button.active a {
            color: white;
        }

        .form-container {
            position: relative;
        }

        

        .auth-form.active {
            display: block;
            animation: fadeIn 0.3s ease-in-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #374151;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-group input {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e5e7eb;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: #fafafa;
        }

        .form-group input:focus {
            outline: none;
            border-color: #ef4444;
            background: white;
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
        }

        .password-group {
            position: relative;
        }

        .toggle-password {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: #6b7280;
            cursor: pointer;
            font-size: 0.9rem;
            padding: 0;
        }

        .toggle-password:hover {
            color: #ef4444;
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 25px;
        }

        .checkbox-group input[type="checkbox"] {
            width: auto;
            margin: 0;
        }

        .checkbox-group label {
            margin: 0;
            font-size: 0.9rem;
            color: #6b7280;
            font-weight: normal;
        }

        .submit-btn {
            width: 100%;
            background: linear-gradient(135deg, #ef4444, #dc2626);
            color: white;
            border: none;
            padding: 16px;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 20px;
        }

        .submit-btn:hover {
            background: linear-gradient(135deg, #dc2626, #b91c1c);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
        }

        .divider {
            display: flex;
            align-items: center;
            margin: 25px 0;
            color: #9ca3af;
        }

        .divider::before,
        .divider::after {
            content: '';
            flex: 1;
            height: 1px;
            background: #e5e7eb;
        }

        .divider span {
            padding: 0 20px;
            font-size: 0.9rem;
        }

        .social-login {
            display: flex;
            gap: 12px;
            margin-bottom: 25px;
        }

        .social-btn {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px;
            border: 2px solid #e5e7eb;
            border-radius: 8px;
            background: white;
            color: #374151;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .social-btn:hover {
            border-color: #1e40af;
            color: #1e40af;
            transform: translateY(-1px);
        }

        .forgot-password {
            text-align: center;
            margin-top: 15px;
        }

        .forgot-password a {
            color: #1e40af;
            text-decoration: none;
            font-weight: 500;
        }

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

        .features {
            background: rgba(239, 68, 68, 0.1);
            border-radius: 12px;
            padding: 20px;
            margin-top: 25px;
        }

        .features h3 {
            color: #b91c1c;
            margin-bottom: 12px;
            font-size: 1.1rem;
        }

        .feature-list {
            list-style: none;
            padding: 0;
        }

        .feature-list li {
            color: #374151;
            margin-bottom: 8px;
            padding-left: 20px;
            position: relative;
            font-size: 0.9rem;
        }

        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: #ef4444;
            font-weight: bold;
        }

        @media (max-width: 480px) {
            .auth-container {
                padding: 30px 20px;
            }
            
            .logo h1 {
                font-size: 2rem;
            }
            
            .social-login {
                flex-direction: column;
            }
        }
        
        /************************************ toast alert ********************/
        .toast {
            padding: 15px 20px;
            margin-bottom: 10px;
            border-radius: 4px;
            color: white;
            opacity: 0;
            transition: opacity 0.5s;
            min-width: 200px;
        }

        .toast.show {
            opacity: 1;
        }

        .toast-info {
            background-color: #1e40af;
        }

        .toast-success {
            background-color: #15803d;
        }

        .toast-warning {
            background-color: #f59e0b;
        }

        .toast-error {
            background-color: #dc2626;
        }