/* ============================================
   Docker Layers Visualizer - Theme Colors
   Project-specific colors and overrides
   ============================================ */

:root {
    /* Docker Component Colors - Steel Blue Theme */
    --color-layer-start: #7B8E9E;
    --color-layer-end: #5A6B7A;
    --color-base-layer-start: #6B9E9E;
    --color-base-layer-end: #4A7A7A;
    --color-writable-start: #C2785C;
    --color-writable-end: #A65D42;
    --color-cache-hit: #7B9E7B;
    --color-cache-miss: #D4A574;
    --color-dockerfile: #282F28;

    /* Theme accent for controls */
    --color-accent-start: var(--color-layer-start);
    --color-accent-end: var(--color-base-layer-start);
}

/* Link colors using Docker theme */
a {
    color: var(--color-layer-start);
}

a:hover {
    color: var(--color-layer-end);
}

/* Docker Logo Gradient */
.viz-logo {
    font-size: 1.25rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-layer-start), var(--color-base-layer-start));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Docker-themed control button */
.viz-control-btn-primary {
    background: linear-gradient(135deg, var(--color-layer-end), var(--color-base-layer-end)) !important;
    color: white !important;
}

.viz-control-btn-primary:hover {
    filter: brightness(1.1);
}

/* Docker-themed slider thumb */
.viz-speed-slider::-webkit-slider-thumb {
    background: linear-gradient(135deg, var(--color-layer-start), var(--color-base-layer-start));
}

.viz-speed-slider::-moz-range-thumb {
    background: linear-gradient(135deg, var(--color-layer-start), var(--color-base-layer-start));
}

/* Docker lesson item active state */
.viz-lesson-item.active {
    background-color: var(--bg-surface-light) !important;
    border-left-color: var(--color-layer-start) !important;
}

.viz-lesson-item.active .lesson-number {
    background: linear-gradient(135deg, var(--color-layer-start), var(--color-layer-end));
    color: white;
}

/* Docker-specific entity styles */
.docker-layer {
    cursor: pointer;
    transition: filter 0.2s ease;
}

.docker-layer:hover {
    filter: brightness(1.1);
}

.dockerfile-instruction {
    font-family: var(--font-mono);
    font-size: 12px;
}

/* Cache indicator badges */
.cache-hit-badge {
    fill: var(--color-cache-hit);
}

.cache-miss-badge {
    fill: var(--color-cache-miss);
}

/* Layer size indicator */
.layer-size {
    font-family: var(--font-mono);
    font-size: 10px;
    fill: var(--text-muted);
}

/* Dockerfile code block styling */
.dockerfile-block {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.4;
}

.dockerfile-keyword {
    color: var(--color-cache-miss);
    font-weight: 600;
}

.dockerfile-arg {
    color: var(--text-secondary);
}

/* Info panel Docker-specific badges */
.badge-layer {
    background-color: var(--color-layer-start);
    color: white;
}

.badge-image {
    background-color: var(--color-base-layer-start);
    color: white;
}

.badge-container {
    background-color: var(--color-writable-start);
    color: white;
}

.badge-dockerfile {
    background-color: var(--color-dockerfile);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.badge-cache {
    background-color: var(--color-cache-hit);
    color: white;
}