@import url('../../../assets/css/design-system.css');

/* ===================================
   Trip Account Settings - Unified Styles
   統一樣式檔案（優化版）
   Mobile-First 設計
   =================================== */

/* ==========================================
   1. CSS VARIABLES
   ========================================== */
:root {
    /* Colors */
    --primary-color: var(--color-primary);
    --primary-dark: var(--color-primary-dark);
    --success-color: var(--color-success);
    --danger-color: var(--color-danger);
    --danger-dark: var(--color-danger-dark);
    --danger-bg: var(--color-danger-soft);
    --danger-border: #fecaca;
    --danger-text: #991b1b;
    --danger-text-dark: #7f1d1d;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --text-quaternary: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #d1d5db;
    --border-light: #e5e7eb;
    
    /* Spacing (8px grid) */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
    --spacing-4xl: 40px;
    --spacing-5xl: 48px;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-danger: 0 4px 12px rgba(239, 68, 68, 0.3);
    
    /* Typography */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 0.9375rem; /* 15px */
    --font-size-md: 1rem;        /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    
    /* Transitions */
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Z-index */
    --z-sticky: 100;
}

/* ==========================================
   2. LAYOUT - MOBILE FIRST
   ========================================== */

/* Sub-page Header */
.sub-page-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-lg) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.sub-page-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sub-page-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    text-align: center;
}

.sub-page-action {
    width: 80px;
}

/* Sub-page Container */
.sub-page-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.sub-page-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl) var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

/* ==========================================
   3. SETTINGS SECTIONS
   ========================================== */

.settings-section {
    margin-bottom: 2.5rem;
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.settings-section-title i {
    color: var(--primary-color);
}

/* ==========================================
   4. SETTINGS ITEMS
   ========================================== */

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

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

.settings-item-clickable {
    cursor: pointer;
    border: none;
    width: 100%;
    text-align: left;
}

.settings-item-clickable:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

.settings-item-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex: 1;
}

.settings-item-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.settings-item-content {
    flex: 1;
}

.settings-item-label {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.settings-item-value {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.settings-item-description {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.settings-item-status {
    font-size: var(--font-size-sm);
    color: var(--success-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.settings-item-status i {
    font-size: var(--font-size-md);
}

.settings-item-action {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.settings-item-action:hover {
    background: var(--primary-dark);
}

.settings-item-arrow {
    font-size: var(--font-size-md);
    color: var(--text-quaternary);
}

/* ==========================================
   5. LANGUAGE SELECTION
   ========================================== */

.language-selection-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.language-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    width: 100%;
    text-align: left;
}

.language-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

.language-item.active {
    background: var(--color-brand-blue-soft);
    border-color: var(--primary-color);
    color: var(--primary-dark);
    font-weight: 600;
}

.language-check-icon {
    display: none;
    font-size: var(--font-size-lg);
    color: var(--primary-dark);
}

.language-item.active .language-check-icon {
    display: block;
}

/* ==========================================
   6. DANGER ZONE
   ========================================== */

.settings-section--danger {
    margin-top: var(--spacing-3xl);
}

.danger-zone-toggle {
    width: 100%;
    text-align: left;
    border: none;
    background: transparent;
}

.danger-zone-toggle-icon {
    color: var(--text-tertiary, #6b7280);
    background: var(--bg-secondary, #f3f4f6);
}

.danger-zone-toggle .settings-item-label {
    color: var(--text-primary, #111827);
}

.danger-zone-chevron {
    transition: transform var(--transition-base, 0.2s ease);
}

.danger-zone-chevron.is-open {
    transform: rotate(180deg);
}

.danger-zone-panel {
    margin-top: var(--spacing-md);
}

.danger-zone-panel[hidden] {
    display: none !important;
}

.danger-zone {
    background: var(--danger-bg);
    border: 2px solid var(--danger-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.danger-zone-content {
    margin-bottom: var(--spacing-2xl);
    width: 100%;
    text-align: left;
}

.danger-zone-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--danger-text);
    margin-bottom: var(--spacing-md);
}

.danger-zone-description {
    font-size: var(--font-size-base);
    color: var(--danger-text-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.danger-zone-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.danger-zone-list li {
    font-size: var(--font-size-sm);
    color: var(--danger-text);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-2xl);
    position: relative;
}

.danger-zone-list li:before {
    content: "•";
    position: absolute;
    left: var(--spacing-sm);
    color: var(--danger-color);
    font-weight: bold;
}

.danger-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    min-height: 44px;
}

.danger-btn:hover {
    background: var(--danger-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-danger);
}

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

.danger-btn:disabled,
.danger-btn.is-submitted {
    background: #9ca3af;
    color: #f9fafb;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.danger-btn:disabled:hover,
.danger-btn.is-submitted:hover {
    background: #9ca3af;
    transform: none;
    box-shadow: none;
}

.danger-zone-pending-notice {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: #f3f4f6;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.danger-zone-pending-notice i {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--text-tertiary);
}

.danger-zone-pending-notice[hidden] {
    display: none !important;
}

#deleteAccountBtn[hidden] {
    display: none !important;
}

/* ==========================================
   DELETE REQUEST PAGE
   ========================================== */

.delete-request-page {
    max-width: 100%;
}

.delete-request-notice {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-brand-blue-soft);
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary-dark);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.delete-request-notice i {
    flex-shrink: 0;
    margin-top: 2px;
    font-size: var(--font-size-lg);
}

.delete-request-email-hint {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-2xl);
}

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

.delete-request-email-link:hover {
    text-decoration: underline;
}

.delete-request-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.delete-request-field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.delete-request-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.delete-request-label .required {
    color: var(--danger-color);
}

.delete-request-input,
.delete-request-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: border-color var(--transition-base);
}

.delete-request-input:focus,
.delete-request-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.delete-request-input--readonly {
    background: var(--bg-secondary);
    color: var(--text-tertiary);
    cursor: not-allowed;
}

.delete-request-textarea {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
    line-height: 1.5;
}

.delete-request-field-hint {
    font-size: var(--font-size-xs);
    color: var(--text-quaternary);
    margin: 0;
    line-height: 1.5;
}

.delete-request-warning {
    padding: var(--spacing-lg);
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    border-radius: var(--radius-md);
}

.delete-request-warning h3 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--danger-text);
    margin-bottom: var(--spacing-sm);
}

.delete-request-warning ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.delete-request-warning li {
    font-size: var(--font-size-sm);
    color: var(--danger-text-dark);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-xl);
    position: relative;
}

.delete-request-warning li::before {
    content: "•";
    position: absolute;
    left: var(--spacing-sm);
    color: var(--danger-color);
}

.delete-request-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.delete-request-checkbox input[type="checkbox"] {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--danger-color);
    cursor: pointer;
}

.delete-request-submit {
    margin-top: var(--spacing-sm);
    margin-bottom: env(safe-area-inset-bottom, 0px);
}

.delete-request-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.delete-request-message {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.delete-request-message--success {
    background: rgba(16, 185, 129, 0.1);
    border-left: 3px solid var(--success-color);
    color: var(--color-success-dark);
}

.delete-request-message p {
    margin: var(--spacing-sm) 0 0;
}

.delete-request-submit.is-loading {
    opacity: 0.7;
    cursor: wait;
}

.delete-request-submit.is-submitted,
.delete-request-submit.is-submitted:disabled {
    background: #9ca3af;
    border-color: #9ca3af;
    color: #f9fafb;
    opacity: 1;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.delete-request-message--error {
    background: rgba(239, 68, 68, 0.1);
    border-left: 3px solid var(--danger-color);
    color: var(--danger-text);
}

.delete-request-mail-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: 0.75rem 1.5rem;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-base);
}

.delete-request-mail-btn:hover {
    background: var(--color-success-dark);
}

/* ==========================================
   7. TABLET (>= 768px)
   ========================================== */

@media (min-width: 768px) {
    .sub-page-container {
        padding: var(--spacing-3xl) var(--spacing-lg);
    }

    .sub-page-content {
        padding: var(--spacing-3xl);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-md);
    }

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

    .settings-item {
        padding: 1.25rem;
    }

    .settings-item-main {
        gap: var(--spacing-lg);
    }

    .settings-item-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }

    .settings-item-label {
        font-size: var(--font-size-base);
    }

    .settings-item-value {
        font-size: var(--font-size-md);
    }

    .danger-zone {
        padding: var(--spacing-2xl);
    }

    .danger-zone-title {
        font-size: var(--font-size-lg);
    }
}

/* ==========================================
   8. DESKTOP (>= 1024px)
   ========================================== */

@media (min-width: 1024px) {
    .sub-page-container {
        padding: var(--spacing-4xl) var(--spacing-2xl);
    }
}

/* ==========================================
   9. ACCESSIBILITY
   ========================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    .settings-item,
    .language-item,
    .danger-zone {
        border-width: 3px;
    }
}

/* Focus Styles */
.settings-item-clickable:focus,
.language-item:focus,
.danger-btn:focus,
.settings-item-action:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* ==========================================
   Mobile (< 768px) - 手機版
   ========================================== */
@media (max-width: 768px) {
    /* Footer 隱藏規則已在 responsive.css 中定義 */
}