/* File: css/components/command-palette.css */
/*
 * ============================================
 *   COMMAND PALETTE (Ctrl+K Search)
 * ============================================
 *
 * A Spotlight/Alfred-style quick search overlay.
 * Triggered by Ctrl+K (or Cmd+K on Mac).
 *
 * Structure:
 * - Full-screen overlay backdrop
 * - Centered modal with search input
 * - Categorized, filterable results list
 * - Keyboard navigation (↑↓ + Enter)
 */


/* ---- Overlay ---- */
.command-palette-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

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

/* ---- Modal container ---- */
.command-palette {
    position: fixed;
    top: 20%;
    left: 50%;
    transform: translateX(-50%) scale(0.96);
    width: 90%;
    max-width: 580px;
    max-height: 480px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    z-index: calc(var(--z-modal) + 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.command-palette.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

/* ---- Search input area ---- */
.command-palette__search {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.command-palette__search-icon {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.command-palette__input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-heading);
    font-size: var(--fs-base);
    font-family: var(--font-primary);
}

.command-palette__input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.command-palette__shortcut {
    font-size: var(--fs-xs);
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

/* ---- Results area ---- */
.command-palette__results {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-sm) 0;
}

.command-palette__results::-webkit-scrollbar {
    width: 4px;
}

.command-palette__results::-webkit-scrollbar-track {
    background: transparent;
}

.command-palette__results::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

/* Category label */
.command-palette__category {
    padding: var(--space-xs) var(--space-lg);
    font-size: var(--fs-xs);
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Individual result item */
.command-palette__item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
    text-decoration: none;
    color: inherit;
}

.command-palette__item:hover,
.command-palette__item.highlighted {
    background: var(--bg-tertiary);
}

.command-palette__item-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: rgba(100, 255, 218, 0.06);
    border: 1px solid rgba(100, 255, 218, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-base);
    flex-shrink: 0;
}

[data-theme="light"] .command-palette__item-icon {
    background: rgba(0, 102, 204, 0.05);
    border-color: rgba(0, 102, 204, 0.1);
}

.command-palette__item-text {
    flex: 1;
    min-width: 0;
}

.command-palette__item-title {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-heading);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.command-palette__item-desc {
    font-size: var(--fs-xs);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.command-palette__item-arrow {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
}

.command-palette__item:hover .command-palette__item-arrow,
.command-palette__item.highlighted .command-palette__item-arrow {
    opacity: 1;
}

/* No results */
.command-palette__empty {
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--fs-sm);
}

.command-palette__empty-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    display: block;
}

/* ---- Footer hint ---- */
.command-palette__footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-sm) var(--space-lg);
    border-top: 1px solid var(--border-color);
    font-size: var(--fs-xs);
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.command-palette__footer kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 20px;
    padding: 0 5px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* Mobile trigger button (shown in header) */
.command-palette-trigger {
    display: none;
}

@media (max-width: 768px) {
    .command-palette {
        top: 10%;
        max-height: 70vh;
    }

    .command-palette__shortcut {
        display: none;
    }
}