/* Garden PKM - Main Stylesheet
 * Vercel-inspired dark theme with clean, modern aesthetic
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    /* Colors - Dark Theme */
    --color-background: #000000;
    --color-background-secondary: #0a0a0a;
    --color-background-elevated: #111111;
    --color-background-hover: #1a1a1a;
    --color-background-active: #252525;

    --color-border: #333333;
    --color-border-light: #2a2a2a;
    --color-border-focus: #555555;

    --color-text-primary: #ffffff;
    --color-text-secondary: #888888;
    --color-text-tertiary: #666666;
    --color-text-muted: #444444;

    /* Accent Colors */
    --color-accent: #0070f3;
    --color-accent-hover: #0060df;
    --color-accent-light: rgba(0, 112, 243, 0.1);

    /* Status Colors */
    --color-success: #50e3c2;
    --color-success-bg: rgba(80, 227, 194, 0.1);
    --color-warning: #f5a623;
    --color-warning-bg: rgba(245, 166, 35, 0.1);
    --color-error: #e00000;
    --color-error-bg: rgba(224, 0, 0, 0.1);
    --color-info: #0070f3;
    --color-info-bg: rgba(0, 112, 243, 0.1);
    --color-pending: #888888;
    --color-pending-bg: rgba(136, 136, 136, 0.1);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing (8px grid) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Layout */
    --sidebar-width: 240px;
    --sidebar-width-collapsed: 64px;
    --top-bar-height: 64px;
    --content-max-width: 1200px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Z-index layers */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-toast: 400;
    --z-tooltip: 500;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    min-height: 100vh;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

/* ============================================
   App Layout
   ============================================ */
#app {
    display: flex;
    min-height: 100vh;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--color-background);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base), transform var(--transition-base);
    z-index: var(--z-sticky);
}

.sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
}

.sidebar.collapsed .nav-label,
.sidebar.collapsed .logo-text {
    opacity: 0;
    visibility: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    height: var(--top-bar-height);
}

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

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

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    transition: opacity var(--transition-base);
}

.sidebar-toggle {
    color: var(--color-text-secondary);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.sidebar-toggle:hover {
    color: var(--color-text-primary);
    background-color: var(--color-background-hover);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4) 0;
}

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

.nav-item {
    padding: 0 var(--space-3);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.nav-link.active {
    color: var(--color-text-primary);
    background-color: var(--color-background-active);
}

.nav-icon {
    flex-shrink: 0;
}

.nav-label {
    transition: opacity var(--transition-base);
    white-space: nowrap;
}

.sidebar-footer {
    padding: var(--space-3);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-base);
    overflow-x: hidden;
    max-width: 100vw;
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-width-collapsed);
}

/* ============================================
   Top Bar
   ============================================ */
.top-bar {
    height: var(--top-bar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-6);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-background);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.mobile-menu-toggle {
    display: none;
    color: var(--color-text-secondary);
    padding: var(--space-2);
    border-radius: var(--radius-md);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.breadcrumb-item {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
}

.breadcrumb-separator {
    color: var(--color-text-tertiary);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.search-box {
    position: relative;
    width: 280px;
}

.search-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--space-2) var(--space-3) var(--space-2) var(--space-10);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input::placeholder {
    color: var(--color-text-tertiary);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.icon-button {
    color: var(--color-text-secondary);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.icon-button:hover {
    color: var(--color-text-primary);
    background-color: var(--color-background-hover);
}

/* ============================================
   Page Content
   ============================================ */
.page-content {
    flex: 1;
    padding: var(--space-6);
    max-width: var(--content-max-width);
    width: 100%;
    margin: 0 auto;
    overflow-x: hidden;
    box-sizing: border-box;
}

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

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
}

.page-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* ============================================
   Cards
   ============================================ */
.card {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
    border-color: var(--color-border-focus);
}

.card-clickable:hover {
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

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

.card-body {
    padding: var(--space-5);
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Stats Cards
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.stat-card {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.stat-card-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card-icon {
    color: var(--color-text-tertiary);
}

.stat-card-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

.stat-card-change {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
}

.stat-card-change.positive {
    color: var(--color-success);
}

.stat-card-change.negative {
    color: var(--color-error);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    background-color: var(--color-background-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--color-background-hover);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text-primary);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
}

.btn-secondary {
    background-color: var(--color-background-elevated);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-background-hover);
    border-color: var(--color-border-focus);
}

.btn-ghost {
    color: var(--color-text-secondary);
}

.btn-ghost:hover {
    color: var(--color-text-primary);
    background-color: var(--color-background-hover);
}

.btn-danger {
    background-color: var(--color-error);
    color: var(--color-text-primary);
}

.btn-danger:hover {
    background-color: #cc0000;
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-3);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-tertiary);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-10);
}

.form-helper {
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

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

/* ============================================
   Badges & Tags
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

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

.badge-pending {
    background-color: var(--color-pending-bg);
    color: var(--color-pending);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-background-active);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tag:hover {
    background-color: var(--color-background-hover);
    color: var(--color-text-primary);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* ============================================
   Loading States
   ============================================ */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    color: var(--color-text-secondary);
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--space-4);
}

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

.skeleton {
    background: linear-gradient(90deg, var(--color-background-elevated) 25%, var(--color-background-hover) 50%, var(--color-background-elevated) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   Empty States
   ============================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    text-align: center;
}

.empty-state-icon {
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-4);
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    max-width: 400px;
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    z-index: var(--z-toast);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 450px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.toast-exit {
    animation: slideOut 0.3s ease forwards;
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.toast-icon {
    flex-shrink: 0;
}

.toast-success .toast-icon {
    color: var(--color-success);
}

.toast-warning .toast-icon {
    color: var(--color-warning);
}

.toast-error .toast-icon {
    color: var(--color-error);
}

.toast-info .toast-icon {
    color: var(--color-info);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-1);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.toast-close {
    color: var(--color-text-tertiary);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--color-text-primary);
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

.modal {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform var(--transition-base);
    margin: var(--space-4);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

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

.modal-close {
    color: var(--color-text-tertiary);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text-primary);
    background-color: var(--color-background-hover);
}

.modal-body {
    flex: 1;
    padding: var(--space-5);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Command Palette
   ============================================ */
.command-palette-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

.command-palette {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 600px;
    max-height: 400px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95) translateY(-10px);
    transition: transform var(--transition-base);
    margin: 0 var(--space-4);
}

.command-palette-overlay.active .command-palette {
    transform: scale(1) translateY(0);
}

.command-palette-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.command-palette-icon {
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.command-palette-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
    outline: none;
}

.command-palette-input::placeholder {
    color: var(--color-text-tertiary);
}

.command-palette-results {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-2);
}

.command-palette-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.command-palette-item:hover,
.command-palette-item.active {
    background-color: var(--color-background-hover);
}

.command-palette-item-icon {
    color: var(--color-text-tertiary);
}

.command-palette-item-label {
    flex: 1;
}

.command-palette-item-shortcut {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    display: flex;
    gap: var(--space-1);
}

.command-palette-item-shortcut kbd {
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-background-active);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--color-background-hover);
    border-color: var(--color-border-focus);
    color: var(--color-text-primary);
}

.pagination-btn.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-text-primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-ellipsis {
    color: var(--color-text-tertiary);
}

/* ============================================
   Avatar
   ============================================ */
.avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-background-active);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
}

.avatar-lg {
    width: 64px;
    height: 64px;
    font-size: var(--font-size-xl);
}

.avatar-group {
    display: flex;
}

.avatar-group .avatar {
    border: 2px solid var(--color-background);
    margin-left: -8px;
}

.avatar-group .avatar:first-child {
    margin-left: 0;
}

/* ============================================
   Progress Bar
   ============================================ */
.progress {
    height: 4px;
    background-color: var(--color-background-active);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-accent);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

/* ============================================
   Tabs
   ============================================ */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-6);
}

.tab {
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all var(--transition-fast);
}

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

.tab.active {
    color: var(--color-text-primary);
    border-bottom-color: var(--color-accent);
}

/* ============================================
   Grid Layouts
   ============================================ */
.grid {
    display: grid;
    gap: var(--space-4);
}

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

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

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   List Items
   ============================================ */
.list-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-fast);
}

.list-item:hover {
    background-color: var(--color-background-hover);
}

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

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.list-item-actions {
    display: flex;
    gap: var(--space-2);
}

/* ============================================
   Tooltips
   ============================================ */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-3);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
    z-index: var(--z-tooltip);
    margin-bottom: var(--space-2);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Dropdown
   ============================================ */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 180px;
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    margin-top: var(--space-2);
    padding: var(--space-2);
}

.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);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

/* ============================================
   Code
   ============================================ */
.code {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: var(--font-size-sm);
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-background-active);
    border-radius: var(--radius-sm);
}

.code-block {
    display: block;
    padding: var(--space-4);
    background-color: var(--color-background-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    white-space: pre;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-secondary); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-warning { color: var(--color-warning); }
.text-2xl { font-size: var(--font-size-2xl); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.flex-wrap { flex-wrap: wrap; }
.gap-3 { gap: var(--space-3); }
.mt-2 { margin-top: var(--space-2); }
.ml-2 { margin-left: var(--space-2); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============================================
   Standardized Layout System
   ============================================ */

/*
 * Layout Tokens - Standardized spacing for consistent layouts
 * Use these variables for all page and section spacing
 */
:root {
    /* Page content spacing */
    --layout-page-padding: var(--space-6);
    --layout-page-padding-mobile: var(--space-4);

    /* Section spacing */
    --layout-section-gap: var(--space-6);
    --layout-section-gap-mobile: var(--space-4);

    /* Card/component gaps */
    --layout-card-gap: var(--space-4);
    --layout-card-gap-mobile: var(--space-3);

    /* Header bottom margin */
    --layout-header-margin: var(--space-6);
    --layout-header-margin-mobile: var(--space-4);
}

/*
 * Page Layout Types
 * Use one of these on the outermost container in each view
 */

/* Standard page layout - for most pages */
.page-layout {
    display: flex;
    flex-direction: column;
    gap: var(--layout-section-gap);
}

/* Full-height layout - for immersive views like notes, messages */
.page-layout-full {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--top-bar-height));
    overflow: hidden;
}

/* Remove padding from page-content when it contains a full layout view */
.page-content:has(.page-layout-full) {
    padding: 0;
}

/* Sidebar layout - for pages with a side panel */
.page-layout-sidebar {
    display: flex;
    gap: var(--layout-section-gap);
    min-height: 0;
}

.page-layout-sidebar > .page-sidebar {
    width: 240px;
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--top-bar-height) + var(--layout-page-padding));
    height: fit-content;
    max-height: calc(100vh - var(--top-bar-height) - (var(--layout-page-padding) * 2));
    overflow-y: auto;
}

.page-layout-sidebar > .page-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--layout-section-gap);
}

/*
 * Page Header - Standardized header component
 * Use at top of every page for consistent styling
 */
.page-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.page-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.page-header-content {
    flex: 1;
    min-width: 0;
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/*
 * Section - Standardized content sections
 * Use for grouping related content with consistent spacing
 */
.section {
    display: flex;
    flex-direction: column;
    gap: var(--layout-card-gap);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

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

.section-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.section-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/*
 * Content Grid - Standardized grid for cards and items
 */
.content-grid {
    display: grid;
    gap: var(--layout-card-gap);
}

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

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

.content-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.content-grid-auto {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/*
 * Filter Bar - Standardized filter/search bar component
 */
.filter-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    padding: var(--layout-card-gap);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.filter-bar-search {
    flex: 1;
    min-width: 200px;
    max-width: 320px;
}

.filter-bar-filters {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.filter-bar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: auto;
}

/*
 * Bulk Actions Bar - Standardized selection actions
 */
.bulk-bar {
    display: none;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--layout-card-gap);
    background-color: var(--color-accent-light);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-lg);
    animation: slideDown var(--transition-fast);
}

.bulk-bar.visible {
    display: flex;
}

.bulk-bar-count {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-accent);
}

.bulk-bar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: auto;
}

/*
 * Panel Sidebar - Standardized sidebar component for layouts
 */
.panel-sidebar {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--layout-card-gap);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.panel-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.panel-sidebar-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

.panel-sidebar-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.panel-sidebar-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.panel-sidebar-item:hover {
    background-color: var(--color-background-hover);
    color: var(--color-text-primary);
}

.panel-sidebar-item.active {
    background-color: var(--color-accent-light);
    color: var(--color-accent);
}

.panel-sidebar-item-count {
    font-size: var(--font-size-xs);
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-background-active);
    border-radius: var(--radius-full);
    min-width: 24px;
    text-align: center;
}

.panel-sidebar-item.active .panel-sidebar-item-count {
    background-color: var(--color-accent);
    color: white;
}

/*
 * Three-column Layout - For app-like views (notes, messages)
 */
.three-column-layout {
    display: flex;
    height: 100%;
    background-color: var(--color-background);
}

.three-column-layout > .column-left {
    width: 200px;
    min-width: 180px;
    background-color: var(--color-background-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.three-column-layout > .column-center {
    width: 320px;
    min-width: 280px;
    background-color: var(--color-background-elevated);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.three-column-layout > .column-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--color-background);
}

.column-header {
    padding: var(--layout-card-gap);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.column-content {
    flex: 1;
    overflow-y: auto;
}

.column-footer {
    padding: var(--space-3) var(--layout-card-gap);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

/* ============================================
   Responsive Styles
   ============================================ */

/* Responsive Layout Adjustments */
@media (max-width: 1200px) {
    .page-layout-sidebar > .page-sidebar {
        width: 200px;
    }

    .three-column-layout > .column-left {
        width: 180px;
        min-width: 160px;
    }

    .three-column-layout > .column-center {
        width: 280px;
        min-width: 240px;
    }
}

@media (max-width: 1024px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

    /* Layout adjustments for tablet */
    .page-layout-sidebar {
        flex-direction: column;
    }

    .page-layout-sidebar > .page-sidebar {
        width: 100%;
        position: static;
        max-height: none;
    }

    .content-grid-3,
    .content-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .three-column-layout > .column-left {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.open {
        transform: translateX(0);
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .top-bar {
        padding: 0 var(--space-4);
    }

    .search-box {
        display: none;
    }

    .page-content {
        padding: var(--layout-page-padding-mobile);
    }

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

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

    .table-container {
        margin: 0 calc(-1 * var(--space-4));
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .modal {
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
        margin: 0;
    }

    .command-palette {
        max-width: 100%;
        max-height: 100%;
        border-radius: 0;
        margin: 0;
    }

    .command-palette-overlay {
        padding-top: 0;
    }

    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
        bottom: var(--space-4);
    }

    .toast {
        min-width: auto;
        max-width: none;
    }

    /* Mobile layout adjustments */
    .page-layout {
        gap: var(--layout-section-gap-mobile);
    }

    .page-layout-full {
        height: calc(100vh - var(--top-bar-height));
    }

    .section {
        gap: var(--layout-card-gap-mobile);
    }

    .content-grid {
        gap: var(--layout-card-gap-mobile);
    }

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

    .filter-bar {
        padding: var(--layout-card-gap-mobile);
        flex-direction: column;
        align-items: stretch;
    }

    .filter-bar-search {
        flex: 1 1 100%;
        max-width: none;
        min-width: 0;
    }

    .filter-bar-filters {
        width: 100%;
        flex-wrap: wrap;
    }

    .filter-bar-filters select,
    .filter-bar-filters .form-select {
        flex: 1 1 auto;
        min-width: 120px;
    }

    .filter-bar-actions {
        width: 100%;
        margin-left: 0;
        justify-content: flex-start;
    }

    .page-header-row {
        flex-direction: column;
        align-items: stretch;
    }

    .page-header-actions {
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .three-column-layout {
        flex-direction: column;
    }

    .three-column-layout > .column-left,
    .three-column-layout > .column-center {
        width: 100% !important;
        min-width: 0 !important;
        max-width: 100% !important;
        height: auto;
        max-height: none;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        flex-shrink: 0;
    }

    .three-column-layout > .column-right {
        flex: 1;
        min-height: 300px;
        width: 100% !important;
        min-width: 0 !important;
    }

    /* Page layout full on mobile - prevent overflow */
    .page-layout-full {
        height: auto;
        min-height: calc(100vh - var(--top-bar-height));
        margin: 0;
        overflow-x: hidden;
    }

    /* Page layout sidebar on mobile */
    .page-layout-sidebar {
        flex-direction: column;
    }

    .page-layout-sidebar > .page-sidebar {
        width: 100%;
        position: static;
        max-height: none;
        margin-bottom: var(--layout-section-gap-mobile);
    }

    .page-layout-sidebar > .page-main {
        width: 100%;
    }

    .panel-sidebar {
        padding: var(--layout-card-gap-mobile);
    }

    /* Ensure all child elements respect container width */
    .page-layout,
    .page-layout-full,
    .page-layout-sidebar {
        max-width: 100%;
        overflow-x: hidden;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: var(--font-size-2xl);
    }

    .stat-card-value {
        font-size: var(--font-size-2xl);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .sidebar,
    .top-bar,
    .toast-container,
    .modal-overlay,
    .command-palette-overlay {
        display: none !important;
    }

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

    body {
        background: white;
        color: black;
    }
}

/* ============================================
   Settings Page
   ============================================ */
.settings-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-6);
    min-height: calc(100vh - var(--top-bar-height) - var(--space-12));
}

.settings-nav {
    position: sticky;
    top: calc(var(--top-bar-height) + var(--space-6));
    height: fit-content;
}

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

.settings-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.settings-nav-item i {
    width: 20px;
    text-align: center;
    color: var(--color-text-tertiary);
}

.settings-nav-item.active i {
    color: var(--color-accent);
}

.settings-content {
    max-width: 800px;
}

.settings-section {
    display: none;
    animation: fadeIn 0.2s ease;
}

.settings-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.settings-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.settings-section-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
}

.settings-sync-status {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.sync-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-success);
}

.sync-indicator.syncing {
    background-color: var(--color-warning);
    animation: pulse 1s infinite;
}

.sync-indicator.error {
    background-color: var(--color-error);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Theme Selector */
.theme-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.theme-option {
    position: relative;
    padding: var(--space-4);
    background-color: var(--color-background-elevated);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-fast);
}

.theme-option:hover {
    border-color: var(--color-border-focus);
}

.theme-option.selected {
    border-color: var(--color-accent);
    background-color: var(--color-accent-light);
}

.theme-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-preview {
    width: 100%;
    height: 60px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
    overflow: hidden;
    display: flex;
}

.theme-preview-dark {
    background: linear-gradient(135deg, #000 0%, #111 50%, #222 100%);
}

.theme-preview-light {
    background: linear-gradient(135deg, #fff 0%, #f5f5f5 50%, #eee 100%);
}

.theme-preview-system {
    background: linear-gradient(135deg, #000 0%, #111 25%, #f5f5f5 75%, #fff 100%);
}

.theme-option span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

/* Color Picker */
.color-picker-row {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.color-presets {
    display: flex;
    gap: var(--space-2);
}

.color-preset {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.color-preset:hover {
    transform: scale(1.1);
}

.color-preset.selected {
    border-color: var(--color-text-primary);
    box-shadow: 0 0 0 2px var(--color-background), 0 0 0 4px var(--color-text-primary);
}

.color-picker-input {
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    background: none;
}

.color-picker-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-input::-webkit-color-swatch {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
}

/* Toggle Controls */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.toggle-row:last-child {
    border-bottom: none;
}

.toggle-label {
    flex: 1;
}

.toggle-label-title {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-1);
}

.toggle-label-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background-color: var(--color-background-active);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

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

.toggle-switch .slider {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.toggle-switch .slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 2px;
    top: 2px;
    background-color: var(--color-text-primary);
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

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

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

/* Radio Group */
.radio-group {
    display: flex;
    gap: var(--space-4);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
}

/* Range Slider */
.range-slider {
    padding: var(--space-2) 0;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-1);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.form-range {
    width: 100%;
    height: 4px;
    border-radius: var(--radius-full);
    background-color: var(--color-background-active);
    appearance: none;
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--color-accent);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.form-range::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border: none;
    border-radius: 50%;
    background-color: var(--color-accent);
    cursor: pointer;
}

/* Sticky Preview Panel */
.sticky-preview {
    position: sticky;
    top: calc(var(--top-bar-height) + var(--space-6));
    margin-top: var(--space-6);
}

.preview-container {
    background-color: var(--color-background-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.preview-container h4 {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.preview-mock {
    display: flex;
    height: 200px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-background);
}

.preview-sidebar {
    width: 60px;
    background-color: var(--color-background-secondary);
    border-right: 1px solid var(--color-border);
    padding: var(--space-2);
}

.preview-sidebar-item {
    width: 100%;
    height: 8px;
    background-color: var(--color-background-active);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

.preview-sidebar-item.active {
    background-color: var(--color-accent);
}

.preview-main {
    flex: 1;
    padding: var(--space-3);
}

.preview-header {
    height: 12px;
    width: 50%;
    background-color: var(--color-background-active);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-3);
}

.preview-card {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-3);
}

.preview-title {
    height: 10px;
    width: 60%;
    background-color: var(--color-background-active);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

.preview-text {
    height: 8px;
    width: 100%;
    background-color: var(--color-background-hover);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-1);
}

.preview-text:last-child {
    width: 80%;
}

/* Integration Items */
.integration-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
}

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

.integration-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-active);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
}

.integration-icon.connected {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.integration-info {
    flex: 1;
}

.integration-name {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
}

.integration-status {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.integration-status.connected {
    color: var(--color-success);
}

.integration-status.error {
    color: var(--color-error);
}

.integration-actions {
    display: flex;
    gap: var(--space-2);
}

/* Storage Overview */
.storage-overview {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-6);
}

.storage-total {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.storage-used {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
}

.storage-label {
    color: var(--color-text-secondary);
}

.storage-bar {
    height: 8px;
    background-color: var(--color-background-active);
    border-radius: var(--radius-full);
    overflow: hidden;
    display: flex;
    margin-bottom: var(--space-4);
}

.storage-bar-segment {
    height: 100%;
    transition: width var(--transition-slow);
}

.storage-bar-segment:first-child {
    border-radius: var(--radius-full) 0 0 var(--radius-full);
}

.storage-bar-segment:last-child {
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.storage-breakdown {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-3);
}

.storage-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
}

.storage-item-color {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-sm);
}

.storage-item-info {
    flex: 1;
}

.storage-item-name {
    color: var(--color-text-secondary);
}

.storage-item-size {
    font-weight: var(--font-weight-medium);
}

/* Mini Stats Grid */
.stats-grid-mini {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.stat-mini {
    padding: var(--space-4);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
}

.stat-mini-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-1);
}

.stat-mini-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Data Action List */
.data-action-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.data-action-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.data-action-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-active);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
}

.data-action-info {
    flex: 1;
}

.data-action-name {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-1);
}

.data-action-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Danger Zone */
.danger-card {
    background-color: var(--color-error-bg);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.danger-card h4 {
    color: var(--color-error);
    margin-bottom: var(--space-2);
}

.danger-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.danger-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

/* About Section */
.about-header {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
    padding: var(--space-5);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.about-logo {
    font-size: 4rem;
}

.about-info {
    flex: 1;
}

.about-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-1);
}

.about-subtitle {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.about-version {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

/* Links */
.link-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.link-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.link-item:hover {
    background-color: var(--color-background-hover);
    border-color: var(--color-border-focus);
}

.link-item i:first-child {
    margin-right: var(--space-3);
    color: var(--color-text-secondary);
}

.link-external {
    color: var(--color-text-tertiary);
}

/* Shortcuts Grid */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-3);
}

.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3);
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.shortcut-desc {
    font-size: var(--font-size-sm);
}

.shortcut-keys {
    display: flex;
    gap: var(--space-1);
}

.shortcut-keys kbd,
kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-background-active);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

/* Code Editor */
.code-editor {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: var(--font-size-sm);
    padding: var(--space-4);
    background-color: var(--color-background-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    min-height: 300px;
    resize: vertical;
    white-space: pre;
    overflow-x: auto;
    tab-size: 2;
}

.code-editor:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

/* Input with Button */
.input-with-button {
    display: flex;
    gap: var(--space-2);
}

.input-with-button .form-input {
    flex: 1;
}

/* Settings Search */
.settings-search {
    margin-bottom: var(--space-6);
}

.settings-search .form-input {
    background-color: var(--color-background-secondary);
}

/* Section Cards */
.settings-card {
    background-color: var(--color-background-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
}

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

.settings-card h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

/* Responsive Settings */
@media (max-width: 900px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }

    .settings-nav {
        position: static;
        margin-bottom: var(--space-4);
    }

    .settings-nav-list {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: var(--space-2);
        -webkit-overflow-scrolling: touch;
    }

    .settings-nav-item {
        white-space: nowrap;
        flex-shrink: 0;
    }

    .sticky-preview {
        display: none;
    }
}

@media (max-width: 600px) {
    .theme-selector {
        grid-template-columns: 1fr;
    }

    .storage-breakdown {
        grid-template-columns: 1fr;
    }

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

    .danger-actions {
        flex-direction: column;
    }

    .danger-actions .btn {
        width: 100%;
    }
}

/* Confirmation Dialog Styles */
.confirm-dialog {
    text-align: center;
}

.confirm-dialog-icon {
    font-size: 3rem;
    color: var(--color-error);
    margin-bottom: var(--space-4);
}

.confirm-dialog-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
}

.confirm-dialog-message {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.confirm-dialog-warning {
    background-color: var(--color-error-bg);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    margin-bottom: var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.confirm-dialog-input {
    margin-bottom: var(--space-4);
}

.confirm-dialog-input label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.confirm-dialog-input input {
    width: 100%;
    padding: var(--space-3);
    background-color: var(--color-background-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    text-align: center;
}

.confirm-dialog-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
}

/* File Input Styling */
.file-input-wrapper {
    position: relative;
    display: inline-block;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

/* Section Divider */
.settings-divider {
    height: 1px;
    background-color: var(--color-border);
    margin: var(--space-6) 0;
}