/* ===== AUTHENTICATION PAGES STYLES ===== */

/* Auth Section */
.auth-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 0 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.auth-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.auth-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

.auth-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    min-height: 600px;
}

/* Left Side - Visual */
.auth-visual {
    background: var(--gradient-primary);
    padding: var(--spacing-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.auth-visual::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.auth-visual-content {
    position: relative;
    z-index: 1;
    color: white;
    text-align: center;
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
}

.auth-logo i {
    font-size: 2rem;
}

.auth-visual-content h2 {
    font-size: 2.5rem;
    font-family: var(--font-display);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.auth-visual-content > p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

.auth-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: left;
    max-width: 400px;
    margin: 0 auto;
}

.auth-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.auth-feature:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(10px);
}

.auth-feature i {
    font-size: 1.5rem;
    color: #10b981;
    background: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.auth-feature span {
    font-size: 1rem;
    font-weight: 500;
}

/* Right Side - Form */
.auth-form-container {
    padding: var(--spacing-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
}

.auth-form-wrapper {
    width: 100%;
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-header h1 {
    font-size: 2rem;
    color: var(--dark);
    font-family: var(--font-display);
    margin-bottom: var(--spacing-sm);
}

.auth-header p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Social Login */
.social-login {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--gray-light);
    background: white;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.social-btn i {
    font-size: 1.2rem;
}

.google-btn:hover {
    border-color: #DB4437;
    color: #DB4437;
}

.google-btn i {
    color: #DB4437;
}

.facebook-btn:hover {
    border-color: #4267B2;
    color: #4267B2;
}

.facebook-btn i {
    color: #4267B2;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-lg) 0;
    color: var(--gray);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--gray-light);
}

.divider span {
    padding: 0 var(--spacing-md);
    font-size: 0.85rem;
    font-weight: 500;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    color: var(--dark);
    font-size: 0.9rem;
}

.form-group label i {
    color: var(--primary);
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.password-input {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input input {
    width: 100%;
    padding-right: 45px;
}

.toggle-password {
    position: absolute;
    right: 10px;
    background: transparent;
    border: none;
    color: var(--gray);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition-fast);
}

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

/* Password Strength */
.password-strength {
    margin-top: var(--spacing-xs);
}

.strength-bar {
    height: 4px;
    background: var(--gray-light);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: var(--transition-base);
    border-radius: var(--radius-full);
}

.strength-fill.weak {
    width: 33%;
    background: var(--danger);
}

.strength-fill.medium {
    width: 66%;
    background: var(--accent);
}

.strength-fill.strong {
    width: 100%;
    background: var(--success);
}

.strength-text {
    font-size: 0.8rem;
    color: var(--gray);
}

.strength-text.weak {
    color: var(--danger);
}

.strength-text.medium {
    color: var(--accent);
}

.strength-text.strong {
    color: var(--success);
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--gray);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-label span {
    user-select: none;
}

.forgot-link,
.link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

/* Auth Button */
.btn-auth {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: var(--transition-base);
    margin-top: var(--spacing-sm);
}

.btn-auth:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-light);
}

.auth-footer p {
    color: var(--gray);
    font-size: 0.95rem;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.auth-footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Guest Checkout Option */
.guest-checkout-option {
    margin-top: var(--spacing-lg);
}

.btn-guest {
    width: 100%;
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    transition: var(--transition-base);
}

.btn-guest:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.guest-note {
    text-align: center;
    color: var(--gray);
    font-size: 0.85rem;
    margin-top: var(--spacing-sm);
}

/* Error Messages */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.error-message i {
    font-size: 1rem;
}

.success-message {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.success-message i {
    font-size: 1rem;
}

/* Loading State */
.btn-auth.loading,
.btn-guest.loading {
    pointer-events: none;
    opacity: 0.7;
    position: relative;
}

.btn-auth.loading::after,
.btn-guest.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid white;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .auth-grid {
        grid-template-columns: 1fr;
    }

    .auth-visual {
        display: none;
    }

    .auth-form-container {
        padding: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .auth-section {
        padding: 80px 0 30px;
    }

    .auth-form-container {
        padding: var(--spacing-lg);
    }

    .auth-header h1 {
        font-size: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .social-login {
        gap: var(--spacing-xs);
    }

    .social-btn {
        font-size: 0.9rem;
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .auth-container {
        padding: 0 var(--spacing-sm);
    }

    .auth-form-container {
        padding: var(--spacing-md);
    }

    .auth-header h1 {
        font-size: 1.25rem;
    }

    .auth-header p {
        font-size: 0.85rem;
    }

    .form-group input,
    .form-group select {
        font-size: 0.9rem;
    }

    .btn-auth,
    .btn-guest {
        font-size: 0.95rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Animation for form elements */
.auth-form .form-group {
    animation: slideUp 0.3s ease forwards;
    opacity: 0;
}

.auth-form .form-group:nth-child(1) { animation-delay: 0.1s; }
.auth-form .form-group:nth-child(2) { animation-delay: 0.2s; }
.auth-form .form-group:nth-child(3) { animation-delay: 0.3s; }
.auth-form .form-group:nth-child(4) { animation-delay: 0.4s; }
.auth-form .form-group:nth-child(5) { animation-delay: 0.5s; }

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Input validation states */
.form-group input.valid {
    border-color: var(--success);
}

.form-group input.invalid {
    border-color: var(--danger);
}

.form-group .validation-message {
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.form-group .validation-message.error {
    color: var(--danger);
}

.form-group .validation-message.success {
    color: var(--success);
}