/* ==========================================
   個人設定頁面共用樣式
   注意：頁面佈局已遷移至 SideNavPanel 組件系統
   ========================================== */

/* ==========================================
   個人資料頁面
   ========================================== */

.user-profile-card {
    background: var(--card-bg, white);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.user-avatar-large {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--color-secondary);
    color: var(--color-text-on-accent);
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.user-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.user-email {
    color: var(--color-text-tertiary);
    margin-bottom: 2rem;
}

.user-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.stat-item {
    padding: 1rem;
    background: var(--color-bg-secondary);
    border-radius: 8px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-secondary);
}

/* ==========================================
   設定列表樣式
   ========================================== */

.settings-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--color-bg-elevated);
    border-radius: 8px;
    border: 1px solid var(--color-border-default);
}

.settings-item label {
    font-weight: 500;
    color: var(--color-text-primary);
}

.settings-select {
    min-width: 200px;
    padding: 0.5rem;
    border: 1px solid var(--color-border-default);
    border-radius: 6px;
    background: var(--color-bg-elevated);
    cursor: pointer;
}

.settings-item.clickable {
    cursor: pointer;
    transition: all 0.2s ease;
}

.settings-item.clickable:hover {
    border-color: var(--color-accent);
    box-shadow: 0 2px 8px var(--color-accent-subtle);
}

.item-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.item-icon {
    font-size: 1.5rem;
}

.item-text {
    display: flex;
    flex-direction: column;
}

.item-title {
    font-weight: 500;
    color: var(--color-text-primary);
}

.item-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
}

.item-arrow {
    width: 20px;
    height: 20px;
    color: var(--color-text-secondary);
}

.settings-item.danger:hover {
    border-color: var(--color-danger);
}

.settings-item.danger .item-title {
    color: var(--color-danger);
}

/* ==========================================
   Toggle 開關
   ========================================== */

.settings-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.settings-toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-border-strong);
    border-radius: 24px;
    transition: background 0.2s ease;
}

.settings-toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    top: 3px;
    background: var(--color-bg-elevated);
    border-radius: 50%;
    transition: transform 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.settings-toggle input:checked + .settings-toggle-slider {
    background: var(--color-accent);
}

.settings-toggle input:checked + .settings-toggle-slider::before {
    transform: translateX(20px);
}

/* ==========================================
   聊天選股設定
   ========================================== */

.settings-group {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--color-bg-elevated);
    border-radius: 12px;
    border: 1px solid var(--color-border-default);
}

.settings-group h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 500;
}

.badge-info {
    background: var(--color-info-subtle);
    color: var(--color-info);
}

/* Checkbox 群組 */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--color-border-default);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.checkbox-label:hover {
    border-color: var(--color-accent);
    background: var(--color-bg-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Radio 群組 */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.radio-label {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border: 2px solid var(--color-border-default);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.radio-label:hover {
    border-color: var(--color-accent);
    background: var(--color-bg-secondary);
}

.radio-label input[type="radio"]:checked + .radio-content {
    color: var(--color-accent);
}

.radio-label:has(input:checked) {
    border-color: var(--color-accent);
    background: var(--color-accent-muted);
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    margin-top: 0.25rem;
    cursor: pointer;
}

.radio-content strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.radio-content p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* 操作按鈕 */
.settings-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* 空狀態 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-secondary);
}

.empty-state svg {
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state p {
    font-size: 1.1rem;
}

/* ==========================================
   訂閱方案頁面 — Claude.ai Billing 風格
   ========================================== */

/* tier badge（保留供其他地方使用） */
.tier-free  { background: var(--color-bg-page); color: var(--color-text-tertiary); border: 1px solid var(--color-border-default); }
.tier-pro   { background: #FFF7ED; color: #C2410C; border: 1px solid #FDBA74; }
.tier-max   { background: #FAF5FF; color: #7C3AED; border: 1px solid #C4B5FD; }
.tier-admin { background: var(--color-danger-subtle); color: var(--color-danger); border: 1px solid #FECACA; }

/* 使用量區塊 */
.subscription-usage-section {
    padding: 2rem;
    background: var(--color-bg-elevated);
    border-radius: 12px;
    border: 1px solid var(--color-border-default);
    margin-bottom: 2rem;
}

.subscription-usage-section h3 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.usage-reset-date {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

/* 進度條 */
.usage-meter {
    margin-bottom: 1.25rem;
}

.usage-meter:last-child {
    margin-bottom: 0;
}

.meter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.meter-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.meter-value {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-variant-numeric: tabular-nums;
}

.meter-progress-track {
    width: 100%;
    height: 4px;
    background: var(--color-bg-page);
    border-radius: 2px;
    overflow: hidden;
}

.meter-progress-fill {
    height: 100%;
    border-radius: 2px;
    background: var(--color-text-secondary);
    transition: width 0.5s ease;
    min-width: 2px;
}

.meter-progress-fill.warning {
    background: var(--color-warning);
}

.meter-progress-fill.danger {
    background: var(--color-danger);
}

.meter-progress-fill.unlimited {
    width: 100% !important;
    background: var(--color-text-secondary);
    opacity: 0.25;
}

/* 帳單區塊 */
.subscription-billing-section {
    padding: 2rem;
    background: var(--color-bg-elevated);
    border-radius: 12px;
    border: 1px solid var(--color-border-default);
    margin-bottom: 2rem;
}

.subscription-billing-section h3 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.billing-item {
    display: flex;
    justify-content: space-between;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--color-border-default);
}

.billing-item:last-child {
    border-bottom: none;
}

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

.billing-item-value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.billing-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.billing-cancelled {
    padding: 0.75rem 1rem;
    background: var(--color-danger-subtle);
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: var(--color-danger);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}


/* 柔和按鈕 */
.btn-subtle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-default);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.375rem 0.875rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-subtle:hover {
    border-color: var(--color-text-secondary);
    color: var(--color-text-primary);
}

/* 文字連結按鈕 */
.btn-text-link {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    padding: 0.25rem 0;
    cursor: pointer;
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: text-decoration-color 0.15s ease;
}

.btn-text-link:hover {
    text-decoration-color: currentColor;
}

/* 小按鈕 */
.btn-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8rem;
    border-radius: 6px;
}

/* 紅色文字按鈕 */
.danger-text {
    color: var(--color-danger);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0.25rem 0;
}

.danger-text:hover {
    color: var(--color-danger);
    text-decoration: underline;
}

/* 訂閱頁面 auth 提示 */
.subscription-auth-prompt {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-secondary);
}

.subscription-auth-prompt p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

/* RWD */
@media (max-width: 640px) {
    .billing-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .pricing-cards-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ==========================================
   Pricing Cards — Claude.ai 風格
   ========================================== */
.pricing-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.pricing-card {
    background: var(--color-bg-elevated);
    border-radius: 16px;
    border: 1.5px solid var(--color-border-default);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pricing-card:hover {
    box-shadow: var(--shadow-md);
}

.pricing-card-current {
    border-color: var(--color-text-primary);
    box-shadow: 0 0 0 1px var(--color-text-primary);
}

/* Card header */
.pricing-card-header {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.pricing-card-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.pricing-card-info {
    flex: 1;
}

.pricing-card-name {
    font-size: 1.375rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.pricing-card-name.tier-pro {
    color: #C2410C;
    background: none;
    border: none;
}

.pricing-card-name.tier-max {
    color: #7C3AED;
    background: none;
    border: none;
}

.pricing-card-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* Price */
.pricing-card-price {
    margin-bottom: 1.25rem;
}

.pricing-price-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.pricing-price-period {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-left: 0.125rem;
}

/* CTA button */
.pricing-cta-btn {
    width: 100%;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
    background: var(--color-text-primary);
    color: var(--color-text-on-accent);
    margin-bottom: 1.25rem;
}

.pricing-cta-btn:hover:not(:disabled) {
    opacity: 0.85;
}

.pricing-cta-btn:disabled {
    opacity: 0.4;
    cursor: default;
}

.pricing-cta-btn.current-plan {
    background: var(--color-bg-page);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-default);
}

/* Divider */
.pricing-divider {
    width: 100%;
    height: 1px;
    background: var(--color-border-default);
    margin-bottom: 1.25rem;
}

/* Features */
.pricing-features-list {
    flex: 1;
}

.pricing-feature-header {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

.pricing-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.pricing-feature-item:last-child {
    margin-bottom: 0;
}

.pricing-feature-check {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--color-success);
    margin-top: 1px;
}

/* Footer note */
.pricing-footer-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}