:root {
            --primary-color: #405189;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --secondary-color: #64748b;
            --success-color: #10b981;
            --error-color: #ef4444;
            --warning-color: #f59e0b;
            --background: #f8fafc;
            --card-background: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --border-color: #e2e8f0;
            --border-focus: #3b82f6;
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --radius-sm: 0.375rem;
            --radius-md: 0.5rem;
            --radius-lg: 0.75rem;
            --radius-xl: 1rem;
        }

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

        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;
            line-height: 1.6;
        }

        .auth-page-wrapper {
            min-height: 100vh;
            position: relative;
        }

        .auth-page-content {
            padding: 2rem 1rem;
        }

        .auth-card {
            background: var(--card-background);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-color);
            overflow: hidden;
            backdrop-filter: blur(10px);
            transform: translateY(0);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .auth-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
        }

        .auth-card-body {
            padding: 2rem 2rem;
        }

        .logo-coupons-container {
            margin-bottom: 0.5rem;
            position: relative;
        }

        .logo-img {
            max-width: 60px;
            height: auto;
            transition: transform 0.3s ease;
        }

        .logo-img:hover {
            transform: scale(1.05);
        }

        .brand-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin: 0;
            letter-spacing: -0.025em;
        }

        .welcome-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
            letter-spacing: -0.025em;
        }

        .welcome-subtitle {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin: 0;
        }

        .auth-form {
            margin-top: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.25rem;
        }

        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .input-wrapper {
            position: relative;
        }

        .form-input {
            width: 100%;
            padding: 0.875rem 1rem;
            padding-right: 3rem;
            font-size: 1rem;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-lg);
            background: var(--card-background);
            color: var(--text-primary);
            transition: all 0.2s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--border-focus);
            box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
        }

        .form-input.is-invalid {
            border-color: var(--error-color);
        }

        .form-input.is-invalid:focus {
            box-shadow: 0 0 0 3px rgb(239 68 68 / 0.1);
        }

        .input-icon {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            pointer-events: none;
        }

        .password-toggle {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 0;
            display: flex;
            align-items: center;
            transition: color 0.2s ease;
        }

        .password-toggle:hover {
            color: var(--text-secondary);
        }

        .error-message {
            display: block;
            font-size: 0.875rem;
            color: var(--error-color);
            margin-top: 0.5rem;
            font-weight: 500;
        }

        .submit-btn {
            width: 100%;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
            color: white;
            border: none;
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .submit-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
            transform: translateY(-1px);
            box-shadow: var(--shadow-lg);
        }

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

        .submit-btn:disabled {
            cursor: not-allowed;
            opacity: 0.8;
        }

        .btn-text {
            transition: opacity 0.3s ease;
        }

        .btn-loader {
            position: absolute;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .submit-btn.loading .btn-text {
            opacity: 0;
        }

        .submit-btn.loading .btn-loader {
            opacity: 1;
        }

        .spinner {
            width: 20px;
            height: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top: 2px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

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

        .auth-links {
            text-align: center;
            margin-top: 1.5rem;
        }

        .forgot-link {
            color: var(--primary-color);
            text-decoration: none;
            font-size: 0.875rem;
            font-weight: 500;
            transition: color 0.2s ease;
            display: inline-block;
            margin-bottom: 1rem;
        }

        .forgot-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        .register-section {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .register-text {
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        .register-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.875rem;
            transition: color 0.2s ease;
        }

        .register-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .auth-card-body {
                padding: 1.5rem 1.25rem;
            }

            .brand-title {
                font-size: 1.375rem;
            }

            .welcome-title {
                font-size: 1.25rem;
            }

            .auth-page-content {
                padding: 1rem;
            }
        }

        @media (max-width: 480px) {
            .auth-card-body {
                padding: 1.25rem 1rem;
            }

            .register-section {
                flex-direction: column;
                gap: 0.25rem;
            }
        }

        /* Loading animation for the entire card */
        .auth-card.form-loading {
            pointer-events: none;
        }

        .auth-card.form-loading::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.8);
            z-index: 10;
            opacity: 0;
            animation: fadeIn 0.3s ease forwards;
        }

        @keyframes fadeIn {
            to {
                opacity: 1;
            }
        }