/* Register Page Styles */

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

[data-theme="dark"] .auth-container {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.auth-card {
    background-color: var(--background-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 480px;
    animation: fadeInUp 0.5s ease-out;
    margin: var(--spacing-lg) 0;
}

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

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

.auth-logo {
    display: inline-block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    text-decoration: none;
}

.auth-logo:hover {
    color: var(--secondary-color);
}

.auth-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.auth-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.auth-form {
    margin-bottom: var(--spacing-xl);
}

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

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
    flex-shrink: 0;
}

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

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

.btn-block {
    width: 100%;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.social-login {
    margin-bottom: var(--spacing-lg);
}

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

.divider-text::before,
.divider-text::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background-color: var(--border-color);
}

.divider-text::before {
    left: 0;
}

.divider-text::after {
    right: 0;
}

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

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.btn-social {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
    background-color: var(--background-color);
    color: var(--text-color);
}

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

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

.btn-google:hover {
    border-color: #DB4437;
    background-color: rgba(219, 68, 55, 0.05);
}

.btn-github {
    border-color: #333;
}

[data-theme="dark"] .btn-github {
    border-color: #fff;
}

.btn-github:hover {
    border-color: #333;
    background-color: rgba(51, 51, 51, 0.05);
}

[data-theme="dark"] .btn-github:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.social-icon {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.auth-footer {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

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

.link-primary {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

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

.theme-toggle-fixed {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    padding: var(--spacing-sm);
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-xl);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    z-index: 100;
}

.theme-toggle-fixed:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* Alert 스타일 조정 */
.alert {
    margin-top: var(--spacing-md);
}

.hidden {
    display: none !important;
}

/* 로딩 상태 */
.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

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

.password-strength-bar {
    height: 4px;
    background-color: var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

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

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

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

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

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

/* 반응형 */
@media (max-width: 480px) {
    .auth-card {
        padding: var(--spacing-xl);
    }

    .auth-logo {
        font-size: var(--font-size-2xl);
    }

    .auth-title {
        font-size: var(--font-size-xl);
    }
}