/* Theme Variables */
[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    --bg-glass: rgba(20, 20, 20, 0.8);
    --bg-glass-hover: rgba(30, 30, 30, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    --accent-color: #4a9eff;
    --accent-hover: #6bb0ff;
    --error-color: #ff4444;
    --success-color: #44ff88;
    --warning-color: #ffaa44;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e8e8e8;
    --bg-glass: rgba(255, 255, 255, 0.9);
    --bg-glass-hover: rgba(255, 255, 255, 0.95);
    --text-primary: #000000;
    --text-secondary: #404040;
    --text-tertiary: #606060;
    --border-color: rgba(0, 0, 0, 0.1);
    --border-color-hover: rgba(0, 0, 0, 0.2);
    --accent-color: #0066cc;
    --accent-hover: #0052a3;
    --error-color: #cc0000;
    --success-color: #00aa44;
    --warning-color: #ff8800;
    --shadow-color: rgba(0, 0, 0, 0.15);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Header */
.header {
    grid-area: header;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-right {
    flex: 1;
    justify-content: flex-end;
    min-width: 0; /* Allow shrinking */
}

.header-title {
    font-family: 'Gruppo', sans-serif;
    font-size: 1.5rem;
    font-weight: 400;
    margin: 0;
    color: var(--text-primary);
}

/* Sidebar */
.sidebar {
    grid-area: sidebar;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-search {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.favorites-tabs {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: nowrap;
    max-width: calc(100vw - 400px);
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
    padding-right: var(--spacing-sm);
    margin-right: var(--spacing-sm);
    border-right: 1px solid var(--border-color);
}

.favorites-tabs::-webkit-scrollbar {
    height: 4px;
}

.favorites-tabs::-webkit-scrollbar-track {
    background: transparent;
}

.favorites-tabs::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.favorites-tabs::-webkit-scrollbar-thumb:hover {
    background: var(--border-color-hover);
}

.favorite-tab {
    padding: 0.4rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: 'Spectral', serif;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.favorite-tab:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

.favorite-tab:active {
    transform: translateY(0);
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: 'Spectral', serif;
    font-size: 0.9rem;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.search-input:focus {
    border-color: var(--accent-color);
    background: var(--bg-primary);
}

.app-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.category-container {
    margin-bottom: var(--spacing-xs);
}

.category-header {
    user-select: none;
}

.category-apps {
    padding-left: var(--spacing-sm);
}

.app-item {
    margin-bottom: var(--spacing-xs);
}

.app-item:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-color-hover);
    transform: translateX(2px);
}

.app-item:active {
    transform: translateX(0);
}

.app-item-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.app-item-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Workspace */
.workspace {
    grid-area: workspace;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.workspace-grid {
    display: grid;
    width: 100%;
    height: 100%;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
}

.workspace-grid.single {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

.workspace-grid.double {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
}

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

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

/* App Tile */
.app-tile {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    position: relative;
}

.app-tile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-color);
    min-height: 40px;
}

.app-tile-title {
    font-family: 'Cardo', serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
}

.app-tile-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.tile-button {
    width: 24px;
    height: 24px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.tile-button:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.app-tile-content {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-md);
}

.app-tile-crash {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--error-color);
}

.app-tile-crash h3 {
    font-family: 'Cardo', serif;
    margin-bottom: var(--spacing-md);
}

/* Icon Button */
.icon-button {
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.icon-button:hover {
    background: var(--bg-tertiary);
}

.icon-button:active {
    transform: scale(0.95);
}

/* Visualizer Canvas */
.visualizer-canvas {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    pointer-events: none;
}