/**
 * D-Central Interactive Schematic Viewer
 *
 * SVG-based interactive board diagrams with hover tooltips,
 * clickable regions, layer toggles, and zoom/pan.
 * Conditionally loaded only on manual pages with schematics.
 *
 * @package D-Central
 * @since 1.10.0
 */


/* ═══════════════════════════════════════════════
   1. SCHEMATIC CONTAINER
   ═══════════════════════════════════════════════ */

.dc-schematic {
    position: relative;
    margin-block: var(--dc-space-2xl);
    border: 1px solid var(--dc-border);
    border-radius: var(--dc-radius-md);
    background-color: var(--dc-bg-elevated);
    overflow: hidden;
}

.dc-schematic__header {
    display: flex;
    align-items: center;
    gap: var(--dc-space-sm);
    padding: var(--dc-space-md) var(--dc-space-lg);
    background-color: var(--dc-bg-surface);
    border-bottom: 1px solid var(--dc-border);
}

.dc-schematic__header-icon {
    color: var(--dc-accent);
    flex-shrink: 0;
}

.dc-schematic__title {
    font-family: var(--dc-font-heading);
    font-size: var(--dc-text-sm);
    font-weight: var(--dc-weight-bold);
    color: var(--dc-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
    flex: 1;
}

.dc-schematic__badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    font-family: var(--dc-font-mono);
    font-size: 10px;
    font-weight: var(--dc-weight-bold);
    color: var(--dc-success);
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--dc-radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}


/* ═══════════════════════════════════════════════
   2. TOOLBAR — LAYER TOGGLES + ZOOM
   ═══════════════════════════════════════════════ */

.dc-schematic__toolbar {
    display: flex;
    align-items: center;
    gap: var(--dc-space-sm);
    padding: var(--dc-space-sm) var(--dc-space-lg);
    background-color: var(--dc-bg-terminal, #0a0a0a);
    border-bottom: 1px solid var(--dc-border);
    overflow-x: auto;
    scrollbar-width: none;
}

.dc-schematic__toolbar::-webkit-scrollbar { display: none; }

.dc-schematic__toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--dc-space-xs);
}

.dc-schematic__toolbar-label {
    font-family: var(--dc-font-mono);
    font-size: 10px;
    font-weight: var(--dc-weight-bold);
    color: var(--dc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    white-space: nowrap;
    margin-right: var(--dc-space-xs);
}

.dc-schematic__toolbar-divider {
    width: 1px;
    height: 24px;
    background-color: var(--dc-border);
    margin: 0 var(--dc-space-sm);
    flex-shrink: 0;
}

.dc-schematic__layer-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 10px;
    background-color: transparent;
    border: 1px solid var(--dc-border);
    border-radius: var(--dc-radius-sm);
    color: var(--dc-text-muted);
    font-family: var(--dc-font-mono);
    font-size: 11px;
    font-weight: var(--dc-weight-medium);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.dc-schematic__layer-btn:hover {
    color: var(--dc-text-primary);
    border-color: var(--dc-border-light);
}

.dc-schematic__layer-btn--active {
    color: var(--dc-accent);
    border-color: var(--dc-accent);
    background-color: var(--dc-accent-bg);
}

.dc-schematic__layer-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dc-schematic__layer-dot--power { background-color: #ef4444; }
.dc-schematic__layer-dot--signal { background-color: #3b82f6; }
.dc-schematic__layer-dot--test-points { background-color: #10b981; }
.dc-schematic__layer-dot--thermal { background-color: #f59e0b; }
.dc-schematic__layer-dot--components { background-color: #a855f7; }

.dc-schematic__zoom-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: transparent;
    border: 1px solid var(--dc-border);
    border-radius: var(--dc-radius-sm);
    color: var(--dc-text-muted);
    font-family: var(--dc-font-mono);
    font-size: 14px;
    font-weight: var(--dc-weight-bold);
    cursor: pointer;
    transition: all 0.15s ease;
}

.dc-schematic__zoom-btn:hover {
    color: var(--dc-accent);
    border-color: var(--dc-accent-border);
    background-color: var(--dc-accent-bg);
}

.dc-schematic__zoom-level {
    font-family: var(--dc-font-mono);
    font-size: 11px;
    color: var(--dc-text-muted);
    min-width: 36px;
    text-align: center;
}


/* ═══════════════════════════════════════════════
   3. VIEWPORT — SVG CONTAINER
   ═══════════════════════════════════════════════ */

.dc-schematic__viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    cursor: grab;
    background-color: var(--dc-bg-terminal, #0a0a0a);
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 20px 20px;
}

.dc-schematic__viewport--dragging {
    cursor: grabbing;
}

.dc-schematic__svg-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-origin: 0 0;
    transition: transform 0.1s ease-out;
}

.dc-schematic__viewport--dragging .dc-schematic__svg-container {
    transition: none;
}

.dc-schematic__svg {
    width: 100%;
    height: 100%;
}


/* ═══════════════════════════════════════════════
   4. SVG REGIONS — INTERACTIVE AREAS
   ═══════════════════════════════════════════════ */

.dc-schematic__region {
    fill: transparent;
    stroke: transparent;
    stroke-width: 2;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dc-schematic__region:hover {
    fill: rgba(255, 110, 0, 0.15);
    stroke: var(--dc-accent);
    stroke-width: 2;
}

.dc-schematic__region--active {
    fill: rgba(255, 110, 0, 0.2);
    stroke: var(--dc-accent);
    stroke-width: 2.5;
    filter: drop-shadow(0 0 8px rgba(255, 110, 0, 0.4));
}

/* Power domain regions */
.dc-schematic__region--power {
    stroke: rgba(239, 68, 68, 0.3);
}
.dc-schematic__region--power:hover {
    fill: rgba(239, 68, 68, 0.12);
    stroke: #ef4444;
    filter: drop-shadow(0 0 6px rgba(239, 68, 68, 0.3));
}

/* Signal path regions */
.dc-schematic__region--signal {
    stroke: rgba(59, 130, 246, 0.3);
}
.dc-schematic__region--signal:hover {
    fill: rgba(59, 130, 246, 0.12);
    stroke: #3b82f6;
    filter: drop-shadow(0 0 6px rgba(59, 130, 246, 0.3));
}

/* Test point markers */
.dc-schematic__test-point {
    fill: rgba(16, 185, 129, 0.6);
    stroke: #10b981;
    stroke-width: 2;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dc-schematic__test-point:hover {
    fill: #10b981;
    stroke: #fff;
    filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.6));
    r: 10;
}

/* Signal path lines */
.dc-schematic__signal-path {
    fill: none;
    stroke: rgba(59, 130, 246, 0.5);
    stroke-width: 2;
    stroke-dasharray: 6 3;
    transition: all 0.2s ease;
}

.dc-schematic__signal-path:hover {
    stroke: #3b82f6;
    stroke-width: 3;
    stroke-dasharray: none;
    filter: drop-shadow(0 0 4px rgba(59, 130, 246, 0.5));
}

/* Chip labels */
.dc-schematic__chip-label {
    font-family: var(--dc-font-mono);
    font-size: 9px;
    font-weight: bold;
    fill: var(--dc-text-muted);
    text-anchor: middle;
    pointer-events: none;
    user-select: none;
}

/* Component outline */
.dc-schematic__component {
    fill: transparent;
    stroke: rgba(168, 85, 247, 0.3);
    stroke-width: 1.5;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dc-schematic__component:hover {
    fill: rgba(168, 85, 247, 0.1);
    stroke: #a855f7;
    filter: drop-shadow(0 0 6px rgba(168, 85, 247, 0.4));
}

/* Thermal zones */
.dc-schematic__thermal-zone {
    fill: transparent;
    stroke: rgba(245, 158, 11, 0.3);
    stroke-width: 1.5;
    stroke-dasharray: 4 2;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dc-schematic__thermal-zone:hover {
    fill: rgba(245, 158, 11, 0.08);
    stroke: #f59e0b;
}

/* Layer visibility */
.dc-schematic__layer {
    transition: opacity 0.3s ease;
}

.dc-schematic__layer--hidden {
    opacity: 0;
    pointer-events: none;
}


/* ═══════════════════════════════════════════════
   5. TOOLTIP — HOVER INFO
   ═══════════════════════════════════════════════ */

.dc-schematic__tooltip {
    position: absolute;
    z-index: 100;
    max-width: 280px;
    padding: var(--dc-space-md);
    background-color: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid var(--dc-border-light);
    border-radius: var(--dc-radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.dc-schematic__tooltip--visible {
    opacity: 1;
    transform: translateY(0);
}

.dc-schematic__tooltip-name {
    display: flex;
    align-items: center;
    gap: var(--dc-space-xs);
    font-family: var(--dc-font-heading);
    font-size: var(--dc-text-sm);
    font-weight: var(--dc-weight-bold);
    color: var(--dc-text-primary);
    margin-bottom: var(--dc-space-xs);
}

.dc-schematic__tooltip-type {
    font-family: var(--dc-font-mono);
    font-size: 10px;
    color: var(--dc-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--dc-space-sm);
}

.dc-schematic__tooltip-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 2px 0;
    font-size: var(--dc-text-xs);
}

.dc-schematic__tooltip-label {
    color: var(--dc-text-muted);
}

.dc-schematic__tooltip-value {
    font-family: var(--dc-font-mono);
    font-weight: var(--dc-weight-medium);
    color: var(--dc-text-primary);
}

.dc-schematic__tooltip-value--accent { color: var(--dc-accent); }
.dc-schematic__tooltip-value--green { color: var(--dc-success); }
.dc-schematic__tooltip-value--red { color: var(--dc-error); }

.dc-schematic__tooltip-hint {
    margin-top: var(--dc-space-sm);
    padding-top: var(--dc-space-sm);
    border-top: 1px solid var(--dc-border);
    font-size: 10px;
    color: var(--dc-text-muted);
    font-style: italic;
}


/* ═══════════════════════════════════════════════
   6. DETAIL PANEL — CLICK INFO
   ═══════════════════════════════════════════════ */

.dc-schematic__detail-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 320px;
    height: 100%;
    background-color: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(12px);
    border-left: 1px solid var(--dc-border);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    z-index: 50;
    scrollbar-width: thin;
    scrollbar-color: var(--dc-border-light) transparent;
}

.dc-schematic__detail-panel--open {
    transform: translateX(0);
}

.dc-schematic__detail-close {
    position: absolute;
    top: var(--dc-space-sm);
    right: var(--dc-space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: transparent;
    border: 1px solid var(--dc-border);
    border-radius: var(--dc-radius-sm);
    color: var(--dc-text-muted);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.15s ease;
    z-index: 2;
}

.dc-schematic__detail-close:hover {
    color: var(--dc-accent);
    border-color: var(--dc-accent-border);
}

.dc-schematic__detail-header {
    padding: var(--dc-space-lg);
    border-bottom: 1px solid var(--dc-border);
}

.dc-schematic__detail-name {
    font-family: var(--dc-font-heading);
    font-size: var(--dc-text-lg);
    font-weight: var(--dc-weight-bold);
    color: var(--dc-text-primary);
    margin: 0 0 var(--dc-space-xs) 0;
    padding-right: 36px;
}

.dc-schematic__detail-type {
    font-family: var(--dc-font-mono);
    font-size: var(--dc-text-xs);
    color: var(--dc-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.dc-schematic__detail-body {
    padding: var(--dc-space-lg);
}

.dc-schematic__detail-section {
    margin-bottom: var(--dc-space-lg);
}

.dc-schematic__detail-section-title {
    font-family: var(--dc-font-mono);
    font-size: 10px;
    font-weight: var(--dc-weight-bold);
    color: var(--dc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--dc-space-sm);
    padding-bottom: var(--dc-space-xs);
    border-bottom: 1px solid var(--dc-border);
}

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

.dc-schematic__detail-table th {
    text-align: left;
    padding: var(--dc-space-xs) 0;
    font-size: var(--dc-text-xs);
    font-weight: normal;
    color: var(--dc-text-muted);
    width: 40%;
}

.dc-schematic__detail-table td {
    padding: var(--dc-space-xs) 0;
    font-family: var(--dc-font-mono);
    font-size: var(--dc-text-sm);
    color: var(--dc-text-primary);
}

.dc-schematic__detail-failures {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dc-schematic__detail-failures li {
    display: flex;
    align-items: flex-start;
    gap: var(--dc-space-sm);
    padding: var(--dc-space-xs) 0;
    font-size: var(--dc-text-xs);
    color: var(--dc-text-secondary);
    line-height: 1.4;
}

.dc-schematic__detail-failures li::before {
    content: "!";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    min-width: 16px;
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--dc-error);
    font-family: var(--dc-font-mono);
    font-size: 10px;
    font-weight: bold;
    border-radius: 50%;
    margin-top: 1px;
}

.dc-schematic__detail-link {
    display: inline-flex;
    align-items: center;
    gap: var(--dc-space-xs);
    margin-top: var(--dc-space-sm);
    padding: var(--dc-space-sm) var(--dc-space-md);
    background-color: var(--dc-accent-bg);
    border: 1px solid var(--dc-accent-border);
    border-radius: var(--dc-radius-sm);
    color: var(--dc-accent);
    font-family: var(--dc-font-mono);
    font-size: var(--dc-text-xs);
    font-weight: var(--dc-weight-bold);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.15s ease;
}

.dc-schematic__detail-link:hover {
    background-color: var(--dc-accent);
    color: #ffffff;
}


/* ═══════════════════════════════════════════════
   7. LEGEND
   ═══════════════════════════════════════════════ */

.dc-schematic__legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--dc-space-md);
    padding: var(--dc-space-sm) var(--dc-space-lg);
    background-color: var(--dc-bg-surface);
    border-top: 1px solid var(--dc-border);
    font-size: var(--dc-text-xs);
    color: var(--dc-text-muted);
}

.dc-schematic__legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.dc-schematic__legend-swatch {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
}

.dc-schematic__legend-swatch--power {
    background-color: rgba(239, 68, 68, 0.3);
    border: 1px solid #ef4444;
}

.dc-schematic__legend-swatch--signal {
    background-color: rgba(59, 130, 246, 0.3);
    border: 1px solid #3b82f6;
}

.dc-schematic__legend-swatch--test-point {
    background-color: rgba(16, 185, 129, 0.6);
    border: 1px solid #10b981;
    border-radius: 50%;
}

.dc-schematic__legend-swatch--thermal {
    background-color: rgba(245, 158, 11, 0.15);
    border: 1px solid #f59e0b;
}

.dc-schematic__legend-swatch--component {
    background-color: rgba(168, 85, 247, 0.15);
    border: 1px solid #a855f7;
}


/* ═══════════════════════════════════════════════
   8. RESPONSIVE
   ═══════════════════════════════════════════════ */

@media (max-width: 768px) {
    .dc-schematic__viewport {
        aspect-ratio: 4 / 3;
    }

    .dc-schematic__detail-panel {
        width: 100%;
        height: 50%;
        top: auto;
        bottom: 0;
        right: 0;
        border-left: none;
        border-top: 1px solid var(--dc-border);
        transform: translateY(100%);
    }

    .dc-schematic__detail-panel--open {
        transform: translateY(0);
    }

    .dc-schematic__toolbar {
        padding: var(--dc-space-xs) var(--dc-space-md);
    }

    .dc-schematic__layer-btn {
        padding: 4px 8px;
        font-size: 10px;
    }

    .dc-schematic__legend {
        padding: var(--dc-space-xs) var(--dc-space-md);
        gap: var(--dc-space-sm);
    }
}

@media (max-width: 480px) {
    .dc-schematic__toolbar-label {
        display: none;
    }

    .dc-schematic__detail-panel {
        height: 60%;
    }
}