/* ============================================
   Design System — Layout 佈局系統
   ============================================ */

@import url('./tokens.css');

/* ══════════════════════════════════════
   1. Layout Structure (Global Header Style)
   ══════════════════════════════════════ */
.app-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    position: relative;
    background: var(--color-bg-surface);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: transparent;
}

[data-theme="dark"] .main-content {
    background: transparent;
}

.app-body {
    display: flex;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    /* Contains inner scrolls */
    position: relative;
}

/* ══════════════════════════════════════
   2. Sidebar 側邊選單 (Now inside app-body)
   ══════════════════════════════════════ */
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--color-bg-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: transform var(--duration-base) var(--ease-default),
        width var(--duration-base) var(--ease-default);
    z-index: var(--z-sticky);
    overflow-y: auto;
}

[data-theme="dark"] .sidebar {
    background: var(--glass-bg);
    border-right: var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: calc(var(--z-sticky) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-base) var(--ease-default);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}


.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--color-brand);
    color: var(--color-text-inverse);
    border-radius: var(--radius-input);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--duration-base) var(--ease-default);
}

.logo-icon i,
.logo-icon svg {
    width: 18px;
    height: 18px;
}

[data-theme="dark"] .logo-icon {
    background: rgba(232, 200, 114, 0.15);
    color: var(--color-accent-gold, #E8C872);
    border-color: rgba(232, 200, 114, 0.3);
}

.sidebar-user-avatar-mini {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #E8C872, #5EE7DF);
    color: #fff;
    font-size: var(--ui-text-sm);
    font-weight: var(--weight-bold);
    user-select: none;
    transition: all var(--duration-base) var(--ease-default);
}

.sidebar-user-mini:hover .sidebar-user-avatar-mini {
    transform: scale(1.08);
}

[data-theme="dark"] .sidebar-user-avatar-mini {
    background: linear-gradient(135deg, var(--color-accent-gold, #E8C872), var(--color-accent-cyan, #5EE7DF));
}

/* Nav Sections */
.sidebar-nav {
    flex: 1;
    padding: var(--space-6) var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    overflow-y: auto;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

.sidebar-nav::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.nav-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    color: var(--color-text-tertiary);
    padding: 0 var(--space-3);
    margin-bottom: var(--space-2);
    letter-spacing: var(--tracking-wide);
}

.nav-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    border-radius: var(--radius-nav);
    transition: all var(--duration-base) var(--ease-default);
    cursor: pointer;
    overflow: hidden;
}

.nav-item:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.nav-item.active {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

[data-theme="dark"] .nav-item:hover,
[data-theme="dark"] .nav-item.active {
    background: rgba(240, 237, 230, 0.08);
    color: var(--color-text-primary);
}

/* Dark mode nav glow effect */
.nav-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, rgba(232, 200, 114, 0.15), transparent);
    transition: width var(--duration-slow) var(--ease-default);
    z-index: 0;
    pointer-events: none;
}

.nav-item:hover .nav-glow,
.nav-item.active .nav-glow {
    width: 100%;
}

.nav-item i,
.nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    z-index: 1;
}

.nav-item span {
    z-index: 1;
}

/* Nav Collapsible Group */
.nav-group {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.nav-group-toggle {
    width: 100%;
    border: none;
    background: none;
    text-align: left;
    font-family: inherit;
}

.nav-group-arrow {
    margin-left: auto;
    width: 16px !important;
    height: 16px !important;
    transition: transform var(--duration-base) var(--ease-default);
    opacity: 0.5;
    z-index: 1;
    flex-shrink: 0;
}

.nav-group.open .nav-group-arrow {
    transform: rotate(180deg);
    opacity: 1;
}

.nav-group-children {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding-left: var(--space-6);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-slow) var(--ease-default),
        opacity var(--duration-base) var(--ease-default);
    opacity: 0;
}

.nav-group.open .nav-group-children {
    max-height: 300px;
    opacity: 1;
}

.nav-sub-item {
    font-size: var(--text-xs) !important;
    padding: 6px var(--space-3) !important;
}

.nav-sub-item i,
.nav-sub-item svg {
    width: 15px !important;
    height: 15px !important;
}

/* Nav Submenu (legacy) */
.nav-submenu {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding-left: var(--space-8);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-slow) var(--ease-default);
}

.nav-submenu.open {
    max-height: 500px;
}

.nav-expand-icon {
    margin-left: auto;
    width: 16px;
    height: 16px;
    transition: transform var(--duration-base) var(--ease-default);
    z-index: 1;
}

.nav-item.expanded .nav-expand-icon {
    transform: rotate(180deg);
}

/* Nav Badge */
.nav-badge {
    margin-left: auto;
    background: var(--color-bg-hover);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 2px var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    z-index: 1;
}

/* Sidebar Copyright Footer */
.sidebar-copyright {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
    font-size: 11px;
    /* 故意比 xs 更小，不干擾主視覺 */
    color: var(--color-text-tertiary);
    text-align: center;
    line-height: var(--leading-relaxed);
}

[data-theme="dark"] .sidebar-copyright {
    border-top: var(--glass-border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
}

[data-theme="dark"] .sidebar-user {
    background: rgba(0, 0, 0, 0.2);
    border: var(--glass-border);
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #E8C872, #5EE7DF);
    color: #fff;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    line-height: 1;
    user-select: none;
}

[data-theme="dark"] .sidebar-user-avatar {
    background: linear-gradient(135deg, var(--color-accent-gold, #E8C872), var(--color-accent-cyan, #5EE7DF));
}

.sidebar-user-info {
    display: flex;
    flex-direction: column;
}

.sidebar-user-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
}

.sidebar-user-role {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

[data-theme="dark"] .sidebar-user-role {
    color: var(--color-accent-green);
}


/* ══════════════════════════════════════
   4. Global Header 頂部標頭
   ══════════════════════════════════════ */
.header {
    height: var(--header-height);
    background: var(--color-bg-base);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-8);
    position: relative;
    /* No longer sticky since main-content scrolls independently */
    z-index: var(--z-sticky);
    flex-shrink: 0;
}

[data-theme="dark"] .header {
    background: var(--glass-bg);
    border-bottom: var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.header-brand {
    display: flex;
    align-items: center;
    width: calc(var(--sidebar-width) - var(--space-8));
    flex-shrink: 0;
    border-right: 1px solid var(--color-border);
}

.header-brand .sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: var(--weight-semibold);
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    text-decoration: none;
    flex: 1;
    min-width: 0;
}

.sidebar-brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    margin-top: 3px;
    min-width: 0;
    /* Ensures inner text truncation works */
}

.sidebar-company-name {
    line-height: var(--leading-tight, 1.2);
    word-break: break-word;
}

.sidebar-plan-name {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    font-weight: var(--weight-medium);
    line-height: 1;
}

.header-divider {
    display: none;
}

.header-left {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding-left: var(--space-6);
}

.header-title {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

.breadcrumbs a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.breadcrumbs a:hover {
    color: var(--color-text-primary);
}

.breadcrumbs .current {
    color: var(--color-text-primary);
    font-weight: var(--weight-medium);
}

/* AI Pulse indicator (dark mode) */
.ai-pulse {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-accent-cyan);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--tracking-wider);
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
    animation: rapid-pulse 1s infinite;
}

@keyframes rapid-pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.5);
        opacity: 0.5;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Header search input */
.header-search {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search .search-icon {
    position: absolute;
    left: var(--space-3);
    color: var(--color-text-tertiary);
    width: 16px;
    height: 16px;
    pointer-events: none;
}

.header-search .input {
    padding-left: var(--space-10);
    width: 240px;
    height: 36px;
}

[data-theme="dark"] .header-search .input {
    background: rgba(240, 237, 230, 0.04);
    border: var(--glass-border);
}

/* Theme Toggle (header inline button) */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-surface);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-base) var(--ease-default);
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-text-primary);
    color: var(--color-text-primary);
}

.theme-toggle i,
.theme-toggle svg {
    width: 16px;
    height: 16px;
}

[data-theme="dark"] .theme-toggle {
    background: rgba(240, 237, 230, 0.06);
    border: var(--glass-border);
    color: var(--color-accent-gold, #E8C872);
}

[data-theme="dark"] .theme-toggle:hover {
    border-color: var(--color-accent-gold, #E8C872);
    color: var(--color-accent-gold, #E8C872);
    background: rgba(240, 237, 230, 0.06);
    box-shadow: var(--glow-gold);
}

/* Mobile Menu Toggle (hidden on desktop) */
.mobile-menu-toggle {
    display: none;
}

/* User Dropdown Profile */
.header-user-dropdown {
    position: relative;
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.header-user-dropdown:hover .sidebar-user-avatar-mini,
.header-user-dropdown.active .sidebar-user-avatar-mini {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

[data-theme="dark"] .header-user-dropdown:hover .sidebar-user-avatar-mini,
[data-theme="dark"] .header-user-dropdown.active .sidebar-user-avatar-mini {
    box-shadow: var(--glow-gold);
}

.header-user-info {
    display: flex;
    flex-direction: column;
}

.header-user-chevron {
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
    transition: transform var(--duration-base) var(--ease-default);
}

.header-user-dropdown.active .header-user-chevron {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    width: 200px;
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--duration-fast) var(--ease-out-back);
    z-index: var(--z-dropdown);
}

[data-theme="dark"] .dropdown-menu {
    background: var(--color-bg-base);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: var(--glass-border);
}

.header-user-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--duration-fast) var(--ease-default);
}

.dropdown-item i,
.dropdown-item svg {
    width: 14px;
    height: 14px;
}

.dropdown-item:hover {
    background: var(--color-bg-base);
    color: var(--color-text-primary);
}

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

.dropdown-item.text-danger {
    color: var(--color-error);
}

.dropdown-item.text-danger:hover {
    background: var(--color-error-light);
    color: var(--color-error);
}

.dropdown-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-2) 0;
}

/* ══════════════════════════════════════
   5. Main Content 主內容區
   ══════════════════════════════════════ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    /* Prevents flex flex-grow overflow */
    background: transparent;
    position: relative;
    overflow-y: auto;
    overflow-x: hidden;
    height: 100%;
}

[data-theme="dark"] .main-content {
    background: transparent;
}

.page-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    padding: var(--space-6) var(--space-6) var(--space-10) var(--space-6);
    width: 100%;
}

.page-header {
    margin-bottom: var(--space-8);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--tracking-tight);
    margin-bottom: var(--space-2);
}

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


/* ══════════════════════════════════════
   5. Responsive Grid 響應式網格
   ══════════════════════════════════════ */

/* Auto-fit grid: 自動根據空間調整欄數 */
.grid-auto {
    display: grid;
    gap: var(--space-6);
}

/* 固定 4 欄 → 2 欄 → 1 欄 */
.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 固定 3 欄 → 2 欄 → 1 欄 */
.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* 固定 2 欄 → 1 欄 */
.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

/* 自適應卡片網格：最小寬度自動換行 */
.grid-cards {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* KPI 統計卡片網格 */
.grid-stats {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* Responsive */
@media (max-width: 1023px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar {
        transform: translateX(-100%);
        position: fixed;
    }

    .sidebar.open {
        transform: translateX(0);
    }
    
    /* Header Responsive Layout */
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--color-bg-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        color: var(--color-text-secondary);
        width: 40px;
        height: 40px;
        cursor: pointer;
        padding: 0;
        margin-right: var(--space-3);
        flex-shrink: 0;
        box-shadow: var(--shadow-sm);
        transition: all var(--duration-fast) var(--ease-default);
    }

    .mobile-menu-toggle:hover {
        background: var(--color-bg-hover);
        color: var(--color-text-primary);
        border-color: var(--color-text-tertiary);
    }

    .mobile-menu-toggle:active {
        transform: scale(0.95);
        background: var(--color-border);
    }
    
    .header-brand {
        width: auto;
        border-right: none;
    }
    
    .sidebar-plan-name {
        display: none; /* Hide plan on mobile header to save space */
    }

    .breadcrumbs {
        display: none; /* Hide breadcrumbs to prevent text squishing on tablet/mobile */
    }

    .header-search {
        display: none; /* Hide search input on mobile */
    }

    .header-actions .action-text {
        display: none; /* Only show icon for action buttons */
    }

    .header-actions .btn {
        width: 40px;
        height: 40px;
        padding: 0;
        justify-content: center;
        gap: 0;
    }
    
    .header-actions .btn i, 
    .header-actions .btn svg {
        margin: 0;
    }
}

@media (max-width: 639px) {

    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

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

    .page-content {
        padding: var(--space-4) var(--space-3);
    }

    .header {
        padding: 0 var(--space-4);
    }
    
    /* Extreme Header Reduction for Mobile */
    #btn-goto-frontend,
    #theme-toggle {
        display: none !important;
    }
    
    .sidebar-overlay.active {
        background: rgba(0, 0, 0, 0.4);
        backdrop-filter: blur(2px);
    }
}

/* ══════════════════════════════════════
   12. SAFE AREA (iPhone 瀏海 / 底部條)
   ══════════════════════════════════════ */
@supports (padding: env(safe-area-inset-bottom)) {
    /* 底部呼吸空間，防止被 Home Indicator 遮擋 */
    .app-body {
        padding-bottom: env(safe-area-inset-bottom);
    }
    /* 頂部安全區域 */
    .header {
        padding-top: env(safe-area-inset-top);
        height: calc(var(--header-height) + env(safe-area-inset-top));
    }
}


/* ══════════════════════════════════════
   6. Ambient Background (Dark mode)
   ══════════════════════════════════════ */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.ambient-blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    border-radius: 50%;
    animation: ambient-float 20s infinite ease-in-out;
}

.ambient-blob-1 {
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, var(--color-accent-blue) 0%, transparent 70%);
    top: -100px;
    left: -100px;
}

.ambient-blob-2 {
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, var(--color-accent-gold, #E8C872) 0%, transparent 70%);
    bottom: -50px;
    right: -50px;
    opacity: 0.5;
    animation-delay: -5s;
}



@keyframes ambient-float {
    0% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }

    100% {
        transform: translate(0, 0) scale(1);
    }
}

/* Hide ambient bg in light mode */
[data-theme="light"] .ambient-bg {
    display: none;
}

/* Mobile Menu Toggle Dark Mode overrides */
[data-theme="dark"] .mobile-menu-toggle {
    background: rgba(240, 237, 230, 0.05);
    border-color: var(--glass-border);
    color: var(--color-text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .mobile-menu-toggle:hover {
    background: rgba(240, 237, 230, 0.1);
    border-color: rgba(240, 237, 230, 0.2);
}