/* WordLearn - Authentication Styles */

.auth-page {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    min-height: 100vh;
}

.auth-page .main-content {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.auth-page .bottom-nav {
    display: none;
}

.auth-container {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.auth-content {
    background-color: var(--bg-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.auth-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.auth-logo {
    width: 64px;
    height: 64px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: var(--font-size-xxl);
}

.auth-title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin: 0 0 var(--spacing-xs) 0;
}

.auth-subtitle {
    font-size: var(--font-size-md);
    opacity: 0.9;
    margin: 0;
    line-height: 1.4;
}

/* Form Container */
.auth-form-container {
    padding: var(--spacing-xl) var(--spacing-lg);
}

.auth-form {
    width: 100%;
}

.form-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

/* Social Login */
.social-login {
    margin-bottom: var(--spacing-lg);
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    min-height: 48px;
}

.btn-social:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-google {
    border-color: #db4437;
    color: #db4437;
}

.btn-google:hover {
    background-color: #db4437;
    color: var(--text-white);
    border-color: #db4437;
}

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

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: #E0E0E0;
}

.divider span {
    background-color: var(--bg-surface);
    padding: 0 var(--spacing-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Form Elements */
.auth-form-inner {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.required {
    color: var(--error-color);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: border-color var(--transition-fast);
    background-color: var(--bg-surface);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-control.error {
    border-color: var(--error-color);
}

/* Password Input */
.password-input {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

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

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

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #E0E0E0;
    border-radius: var(--radius-sm);
    position: relative;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    margin-top: 1px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid var(--text-white);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.terms-checkbox {
    margin-bottom: var(--spacing-md);
}

.terms-text {
    line-height: 1.4;
}

/* Links */
.auth-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

.forgot-password {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    text-decoration: none;
}

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

/* Buttons */
.btn-block {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

/* Form Footer */
.form-footer {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid #E0E0E0;
    margin-top: var(--spacing-lg);
}

.form-footer p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.auth-notice {
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-lg);
    text-align: center;
}

.auth-link-muted {
    color: var(--text-secondary);
}

/* Auth Footer */
.auth-footer {
    padding: var(--spacing-lg);
    text-align: center;
    background-color: var(--bg-secondary);
    border-top: 1px solid #E0E0E0;
}

.auth-help {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* Error Messages */
.form-errors {
    background-color: #FFEBEE;
    color: var(--error-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.form-error {
    color: var(--error-color);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
}

.form-help {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
    line-height: 1.3;
}

/* Password Reset Specific */
.reset-info {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.reset-info p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* Password Strength Indicator */
.password-strength {
    height: 4px;
    background-color: #E0E0E0;
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.password-strength.weak {
    background-color: var(--error-color);
    width: 25%;
}

.password-strength.fair {
    background-color: var(--warning-color);
    width: 50%;
}

.password-strength.good {
    background-color: var(--primary-color);
    width: 75%;
}

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

.password-match {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
}

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

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

/* Responsive Design */
@media (max-width: 480px) {
    .auth-page .main-content {
        padding: var(--spacing-sm);
    }
    
    .auth-header,
    .auth-form-container,
    .auth-footer {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .checkbox-label {
        font-size: var(--font-size-xs);
    }
}

@media (min-width: 768px) {
    .auth-container {
        max-width: 450px;
    }
    
    .auth-header,
    .auth-form-container,
    .auth-footer {
        padding-left: var(--spacing-xl);
        padding-right: var(--spacing-xl);
    }
}

/* Loading state for form submission */
.auth-form-inner.loading {
    pointer-events: none;
    opacity: 0.7;
}

.auth-form-inner.loading .btn {
    position: relative;
}

.auth-form-inner.loading .btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}