/* ============================================
   Layers Panel Styles
   ============================================ */

.layers-panel { 
    display: flex; 
    flex-direction: column;
}

.layers-panel .panel-content {
    padding: 0;
    max-height: none;
    overflow: visible;
}

.layer-blend-mode select {
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 2px 4px;
    font-size: 10px;
    color: var(--text-primary);
    cursor: pointer;
}

.layer-opacity-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.layer-opacity-label { font-size: 10px; color: var(--text-dim); }

.layer-opacity-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 4px;
    background: var(--bg-light);
    border-radius: 2px;
    cursor: pointer;
}

.layer-opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
}

.layer-opacity-value { font-size: 10px; color: var(--text-dim); min-width: 32px; text-align: right; }

/* Drop Shadow Section */
.drop-shadow-section {
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.drop-shadow-header {
    padding: 6px 10px;
    display: flex;
    align-items: center;
}

.drop-shadow-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-secondary);
}

.drop-shadow-toggle input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: var(--accent);
}

.drop-shadow-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.drop-shadow-controls {
    display: none;
    padding: 0 10px 8px 10px;
}

.drop-shadow-controls.active {
    display: block;
}

.drop-shadow-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.drop-shadow-row:last-child {
    margin-bottom: 0;
}

.drop-shadow-prop-label {
    font-size: 10px;
    color: var(--text-dim);
    min-width: 50px;
}

.drop-shadow-row input[type="color"] {
    width: 32px;
    height: 22px;
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0;
    cursor: pointer;
    background: var(--bg-medium);
}

.drop-shadow-row input[type="range"] {
    flex: 1;
    height: 4px;
}

.drop-shadow-row input[type="number"] {
    width: 45px;
    padding: 3px 4px;
    font-size: 10px;
    background: var(--bg-medium);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-primary);
    text-align: center;
}

/* Layer Effects Panel */
.layer-effects-panel {
    display: flex;
    flex-direction: column;
}

.layer-effects-panel .panel-content {
    padding: 0;
}

.layer-effects-content {
    padding: 0 !important;
}

.layer-effect-item {
    border-bottom: 1px solid var(--border);
}

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

.layer-effect-header {
    padding: 8px 10px;
    background: var(--bg-dark);
}

.layer-effect-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-secondary);
}

.layer-effect-toggle input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: var(--accent);
}

.layer-effect-toggle:hover {
    color: var(--text-primary);
}

.layer-effect-name {
    font-size: 11px;
    font-weight: 500;
}

.layer-effect-controls {
    display: none;
    padding: 8px 10px;
    background: var(--bg-medium);
    border-top: 1px solid var(--border);
}

.layer-effect-controls.active {
    display: block;
}

.layer-effect-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.layer-effect-row:last-child {
    margin-bottom: 0;
}

.layer-effect-label {
    font-size: 10px;
    color: var(--text-dim);
    min-width: 50px;
}

.layer-effect-row input[type="color"] {
    width: 32px;
    height: 22px;
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0;
    cursor: pointer;
    background: var(--bg-medium);
}

.layer-effect-row input[type="range"] {
    flex: 1;
    height: 4px;
}

.layer-effect-row input[type="number"] {
    width: 45px;
    padding: 3px 4px;
    font-size: 10px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-primary);
    text-align: center;
}

.layers-list { 
    max-height: 250px;
    overflow-y: auto; 
    padding: 0 !important;
}

.layer-item {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
    position: relative;
}

.layer-item:hover { background: var(--bg-light); }
.layer-item.active { background: var(--accent-dim); }

.layer-visibility {
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 12px;
}

.layer-visibility:hover { color: var(--text-primary); }
.layer-visibility.hidden { color: var(--text-dim); }

.layer-thumbnail {
    width: 40px;
    height: 40px;
    background: var(--bg-medium);
    background-image: 
        linear-gradient(45deg, #333 25%, transparent 25%),
        linear-gradient(-45deg, #333 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #333 75%),
        linear-gradient(-45deg, transparent 75%, #333 75%);
    background-size: 8px 8px;
    border: 1px solid var(--border);
    border-radius: 3px;
    overflow: hidden;
    flex-shrink: 0;
}

.layer-thumbnail canvas { width: 100%; height: 100%; object-fit: contain; }
.layer-info { flex: 1; min-width: 0; }
.layer-name { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.layer-type { font-size: 10px; color: var(--text-dim); }

.layers-toolbar {
    display: flex;
    padding: 6px 10px;
    gap: 4px;
    background: var(--bg-medium);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.layers-toolbar button {
    flex: 1;
    height: 26px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.layers-toolbar button:hover { background: var(--bg-lighter); color: var(--text-primary); }
.layers-toolbar button svg { width: 14px; height: 14px; }

/* Layer controls row */
.layer-controls-row {
    padding: 8px;
    border-bottom: 1px solid var(--border);
}

.layer-controls-row select {
    width: 100%;
    background: var(--bg-medium);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 4px 6px;
    font-size: 11px;
    border-radius: 3px;
}

/* Layer drag and drop */
.layer-item {
    cursor: grab;
    user-select: none;
    transition: transform 0.1s ease, opacity 0.1s ease;
}

.layer-item:active {
    cursor: grabbing;
}

.layer-item.dragging {
    opacity: 0.5;
    transform: scale(0.98);
}

.layer-item.drag-over-top::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    z-index: 10;
}

.layer-item.drag-over-bottom::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    z-index: 10;
}

/* Delete button glow when dragging over */
.layers-toolbar button[title="Delete Layer"].drag-hover {
    animation: attention 0.5s ease-in-out infinite;
    box-shadow: 0 0 10px 2px rgba(255, 200, 0, 0.6);
    background: rgba(255, 200, 0, 0.2);
}

/* Attention animation (reuse from zoom buttons) */
@keyframes attention {
    0%, 100% { box-shadow: 0 0 5px 1px rgba(255, 200, 0, 0.4); }
    50% { box-shadow: 0 0 15px 3px rgba(255, 200, 0, 0.8); }
}