/* Right panels area */
#panels-area {
    background: var(--panel-bg);
    border-left: 1px solid var(--border);
    display: grid;
    grid-template-columns: 32px 1fr;
    grid-template-rows: 1fr;
    overflow: hidden;
}
#panels-icons {
    background: var(--panel-header-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 4px;
    gap: 2px;
}
.panel-icon-btn {
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 2px;
}
.panel-icon-btn:hover { background: var(--tool-hover); color: var(--text); }
.panel-icon-btn.active { color: var(--accent); background: var(--tool-active); }

#panels-stack {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
}
.panel-group {
    border-bottom: 1px solid var(--panel-divider);
    display: flex;
    flex-direction: column;
    min-height: 80px;
}
.panel-group-tall { flex: 1; min-height: 220px; }

.panel-tabs {
    display: flex;
    background: var(--panel-tab-bg);
    border-bottom: 1px solid var(--border);
    padding-left: 4px;
    align-items: stretch;
    overflow: hidden;
}
.panel-tab {
    padding: 4px 10px;
    color: var(--text-muted);
    border: 1px solid transparent;
    border-top: 0;
    border-bottom: 0;
    font-size: 11px;
    cursor: pointer;
    position: relative;
    height: 22px;
    background: transparent;
}
.panel-tab.active {
    background: var(--panel-tab-active-bg);
    color: var(--text);
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
}
.panel-tab:hover:not(.active) {
    color: var(--text);
}
.panel-tabs::after {
    content: "";
    flex: 1;
    background: var(--panel-tab-bg);
    border-bottom: 1px solid var(--border);
}

.panel-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 6px;
    background: var(--panel-tab-active-bg);
    min-height: 0;
}

.panel-body.hidden { display: none; }

/* Color panel */
.cp-pick-area {
    width: 100%;
    height: 130px;
    background: linear-gradient(to right, #fff, #f00),
                linear-gradient(to bottom, transparent, #000);
    background-blend-mode: multiply;
    position: relative;
    cursor: crosshair;
    margin-bottom: 6px;
    border: 1px solid var(--border);
}
.cp-pick-cursor {
    position: absolute;
    width: 10px; height: 10px;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px #000;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}
.cp-hue {
    width: 100%;
    height: 12px;
    background: linear-gradient(to right, #f00,#ff0,#0f0,#0ff,#00f,#f0f,#f00);
    position: relative;
    cursor: ew-resize;
    margin-bottom: 6px;
    border: 1px solid var(--border);
}
.cp-hue-cursor {
    position: absolute;
    top: -2px; bottom: -2px;
    width: 6px;
    border: 1px solid #fff;
    background: rgba(255,255,255,.4);
    transform: translateX(-50%);
    box-shadow: 0 0 0 1px #000;
    pointer-events: none;
}
.cp-values {
    display: grid;
    grid-template-columns: 20px 1fr 20px 1fr;
    gap: 4px;
    margin-top: 4px;
    align-items: center;
}
.cp-values input { width: 100%; height: 20px; }
.cp-values label { color: var(--text-muted); text-align: right; font-size: 10px; }
.cp-hex {
    display: flex; align-items: center; gap: 4px;
    margin-top: 4px;
}
.cp-hex input { flex: 1; height: 20px; font-family: monospace; }
.cp-hex label { color: var(--text-muted); font-size: 10px; }

/* Swatches panel */
.swatches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, 16px);
    gap: 2px;
}
.swatch {
    width: 16px; height: 16px;
    border: 1px solid var(--border);
    cursor: pointer;
    position: relative;
}
.swatch:hover { transform: scale(1.15); z-index: 1; box-shadow: 0 0 0 1px var(--accent); }

/* Layers panel */
.layers-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 4px;
    flex-wrap: wrap;
}
.layers-toolbar select, .layers-toolbar input[type="number"] {
    height: 20px;
    font-size: 10px;
}
.layers-blend { flex: 1; min-width: 80px; }
.layers-opacity {
    display: flex; align-items: center; gap: 4px;
    margin-bottom: 4px;
}
.layers-opacity .lbl { color: var(--text-muted); font-size: 10px; }
.layers-opacity .val { width: 50px; }

.layer-locks {
    display: flex; align-items: center; gap: 4px;
    margin-bottom: 4px;
    font-size: 10px;
}
.layer-locks .lbl { color: var(--text-muted); }
.layer-locks button {
    width: 18px; height: 18px;
    color: var(--text-muted);
    border-radius: 2px;
}
.layer-locks button:hover { background: var(--hover-bg); color: var(--text); }
.layer-locks button.active { color: var(--accent); }

.layers-list {
    border: 1px solid var(--border);
    background: var(--input-bg);
    max-height: calc(100% - 110px);
    overflow-y: auto;
}
.layer-row {
    display: grid;
    grid-template-columns: 22px 38px 1fr;
    align-items: center;
    height: 36px;
    border-bottom: 1px solid var(--panel-divider);
    cursor: pointer;
    padding: 0 4px;
    gap: 4px;
}
.layer-row:hover { background: var(--layer-row-hover); }
.layer-row.selected { background: var(--layer-row-selected); }
.layer-eye {
    width: 18px; height: 18px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text);
    cursor: pointer;
}
.layer-eye.hidden-eye { color: var(--text-dim); }
.layer-thumb {
    width: 34px; height: 28px;
    background:
        conic-gradient(#ccc 25%, #fff 25% 50%, #ccc 50% 75%, #fff 75%) 0 0 / 6px 6px;
    border: 1px solid var(--border);
    background-color: #fff;
    overflow: hidden;
    position: relative;
}
.layer-thumb canvas {
    width: 100%; height: 100%;
    object-fit: contain;
}
.layer-name {
    color: var(--text);
    font-size: 11px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.layer-name input {
    background: var(--input-bg-focus);
    border: 1px solid var(--accent);
    width: 100%;
    height: 20px;
}

.layers-footer {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 4px 0;
    border-top: 1px solid var(--panel-divider);
    background: var(--panel-tab-bg);
    margin-top: 4px;
}
.layers-footer .icon-btn { width: 22px; height: 22px; }

/* History panel */
.history-list {
    border: 1px solid var(--border);
    background: var(--input-bg);
    max-height: 100%;
    overflow-y: auto;
}
.history-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 6px;
    cursor: pointer;
    color: var(--text);
    font-size: 11px;
    border-bottom: 1px solid var(--panel-divider);
}
.history-row:hover { background: var(--layer-row-hover); }
.history-row.current {
    background: var(--layer-row-selected);
    color: var(--text);
}
.history-row.future { color: var(--text-dim); }
.history-icon {
    width: 14px; height: 14px;
    color: var(--text-muted);
}

/* Properties panel */
.props-section { padding: 4px 0; border-bottom: 1px solid var(--panel-divider); }
.props-row {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 6px;
    align-items: center;
    padding: 2px 0;
}
.props-row label { color: var(--text-muted); font-size: 11px; }

/* Adjustments grid */
.adj-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
}
.adj-btn {
    aspect-ratio: 1;
    background: var(--button-bg);
    border-radius: 2px;
    color: var(--text);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
}
.adj-btn:hover { background: var(--button-bg-hover); }
.adj-btn svg { width: 16px; height: 16px; }