/**
 * Auth Pages (Login & Register)
 * ThinQShopping Platform
 */

.auth-page-wrapper {
    min-height: 100vh;
    /* Full viewport height */
    display: flex;
    align-items: center;
    /* Center vertically */
    justify-content: center;
    /* Top padding accounts for sticky header (~110px) + spacing */
    padding: 140px var(--spacing-lg) var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    /* Cleaner gradient */
    position: relative;
    overflow-x: hidden;
}

.auth-container {
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.auth-container--wide {
    max-width: 500px;
}

.auth-card {
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: var(--border-width-thin) solid var(--color-gray-200);
}

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

.auth-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.5px;
}

.auth-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    margin: 0;
}

/* Alert Messages */
.auth-alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.auth-alert--error {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
    border: var(--border-width-thin) solid var(--color-danger);
}

.auth-alert i {
    flex-shrink: 0;
    margin-top: 2px;
}

/* Form Row (for side-by-side fields on desktop) */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 575px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

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

.auth-forgot-link {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
}

.auth-forgot-link:hover {
    text-decoration: underline;
}

/* Divider */
.auth-divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.auth-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-gray-200);
}

.auth-divider span {
    position: relative;
    background: var(--color-white);
    padding: 0 var(--spacing-lg);
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

/* Footer */
.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.auth-switch-text {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    margin: 0;
}

.auth-switch-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
}

.auth-switch-link:hover {
    text-decoration: underline;
}

/* Password Toggle */
.password-toggle-wrapper {
    position: relative;
}

.password-toggle-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    z-index: 2;
}

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

/* Mobile Optimizations */
@media (max-width: 767px) {
    .auth-page-wrapper {
        /* On mobile, header is smaller but still sticky */
        padding: 120px var(--spacing-md) var(--spacing-lg);
        align-items: flex-start;
        /* Prevent centering cut-off on small screens */
    }

    .auth-card {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}

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

.strength-bar {
    width: 100%;
    height: 4px;
    background: var(--color-gray-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    width: 0%;
    background: var(--color-danger);
    transition: width var(--transition-base), background-color var(--transition-base);
}

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

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

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

.strength-text {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* Password Match Indicator */
.password-match {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    min-height: 1em;
}

.password-match.match {
    color: var(--color-success);
}

.password-match.no-match {
    color: var(--color-danger);
}

/* Checkbox Labels */
.form-checkbox-wrapper {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
}