/* Palette panel (bottom-right) */
#palette-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

#palette-grid {
    flex: 1;
    overflow-y: auto;
    padding: 6px;
    display: grid;
    grid-template-columns: repeat(16, 1fr);
    gap: 1px;
    align-content: start;
}

.palette-swatch {
    aspect-ratio: 1;
    border: 1px solid var(--border);
    cursor: pointer;
    min-width: 0;
    position: relative;
}

.palette-swatch:hover {
    border-color: var(--text);
    z-index: 1;
}

.palette-swatch.fg-selected {
    border: 2px solid var(--text-bright);
    z-index: 2;
}

.palette-swatch.bg-selected {
    border: 2px dashed var(--text);
    z-index: 2;
}

/* ── Palette Dialog ─────────────────────────────────────────────── */

.palette-dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.palette-dialog {
    background: var(--bg-panel, #2d2d30);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 6px;
    padding: 10px;
    width: fit-content;
    max-width: 484px;
    color: var(--text, #ccc);
}

.palette-dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
}

.palette-dialog-close {
    background: none;
    border: none;
    color: var(--text-dim, #888);
    font-size: 18px;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.palette-dialog-close:hover {
    color: #fff;
}

/* Toolbar */
.palette-dialog-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    align-content: start;
    margin-bottom: 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border, #3c3c3c);
}

.palette-dialog-toolbar button {
    padding: 3px 7px;
    font-size: 12px;
    background: var(--bg-input, #3c3c3c);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 2px;
    color: var(--text, #ccc);
    cursor: pointer;
    white-space: nowrap;
}

.palette-dialog-toolbar button:hover {
    background: var(--bg-hover, #454545);
}

.palette-dialog-toolbar button:disabled,
.palette-dialog-toolbar select:disabled {
    opacity: 0.4;
    cursor: default;
}

.palette-dialog-toolbar button.active {
    background: var(--accent, #007acc);
    color: var(--text-bright, #fff);
}

.palette-dialog-toolbar-select {
    padding: 3px 4px;
    font-size: 12px;
    background: var(--bg-input, #3c3c3c);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 2px;
    color: var(--text, #ccc);
    cursor: pointer;
}

.ped-reduce-row {
    display: flex;
    gap: 3px;
}

.ped-toolbar-sep {
    width: 1px;
    align-self: stretch;
    background: var(--border, #3c3c3c);
    margin: 0 2px;
}

.palette-dialog-toolbar-num {
    width: 40px;
    padding: 3px 4px;
    font-size: 12px;
    background: var(--bg-input, #3c3c3c);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 2px;
    color: var(--text, #ccc);
    text-align: center;
}

/* HSV Color Picker (right of grid) */
.ped-color-picker {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-left: 6px;
}

.ped-picker-row {
    display: flex;
    gap: 6px;
}

.ped-sv-area {
    position: relative;
    width: 160px;
    height: 160px;
    cursor: crosshair;
}

.ped-sv-canvas {
    width: 100%;
    height: 100%;
    border: 1px solid var(--border, #3c3c3c);
}

.ped-sv-cursor {
    position: absolute;
    width: 10px;
    height: 10px;
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(0,0,0,0.5);
    pointer-events: none;
    transform: translate(-50%, -50%);
}

.ped-hue-strip {
    position: relative;
    width: 20px;
    height: 160px;
    cursor: pointer;
}

.ped-hue-canvas {
    width: 100%;
    height: 100%;
    border: 1px solid var(--border, #3c3c3c);
}

.ped-hue-cursor {
    position: absolute;
    left: -2px;
    right: -2px;
    height: 2px;
    background: #fff;
    box-shadow: 0 0 2px rgba(0,0,0,0.8);
    pointer-events: none;
    transform: translateY(-50%);
}

.ped-inputs-row {
    display: flex;
    align-items: center;
    gap: 3px;
    margin: 2px 0;
}

.ped-rgb-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-dim, #888);
    width: 12px;
    text-align: right;
}

.ped-rgb-slider {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-input, #3c3c3c);
    border-radius: 2px;
    outline: none;
}

.ped-rgb-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent, #007acc);
    cursor: pointer;
}

.ped-rgb-num {
    width: 34px;
    background: var(--bg-input, #3c3c3c);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 2px;
    color: var(--text, #ccc);
    font-size: 11px;
    padding: 2px 2px;
    text-align: center;
}

.ped-rgb-num:focus,
.ped-hex-input:focus {
    border-color: var(--accent, #007acc);
    outline: none;
}

.ped-hex-input {
    width: 52px;
    background: var(--bg-input, #3c3c3c);
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 2px;
    color: var(--text, #ccc);
    font-size: 11px;
    padding: 2px 2px;
    text-align: center;
    font-family: monospace;
}

/* Status message for two-step ops */
.palette-dialog-status {
    font-size: 12px;
    color: var(--accent, #007acc);
    text-align: center;
    padding: 2px 0;
}

/* Index label */
.palette-dialog-index {
    font-size: 13px;
    color: var(--text-dim, #888);
    margin-bottom: 3px;
}

/* ── Grid row: grid + sliders ───────────────────────────────────── */

.ped-grid-row {
    display: flex;
    align-items: stretch;
    margin-bottom: 4px;
}

.ped-grid-col {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.palette-dialog-grid {
    display: grid;
    grid-template-columns: repeat(16, 16px);
    gap: 1px;
}

.palette-dialog-swatch {
    width: 16px;
    height: 16px;
    border: 1px solid var(--border, #3c3c3c);
    cursor: pointer;
    box-sizing: border-box;
}

.palette-dialog-swatch:hover {
    border-color: var(--text, #ccc);
    z-index: 1;
}

.palette-dialog-swatch.in-range {
    border: 2px solid var(--accent, #007acc);
    z-index: 2;
}

.palette-dialog-swatch.range-end {
    border-color: #fff;
}

.palette-dialog-swatch.color-used {
    box-shadow: inset 0 0 0 1px #0f0;
}

.palette-dialog-grid.pending-op {
    cursor: crosshair;
}

.palette-dialog-range-preview {
    display: flex;
    height: 16px;
    border: 1px solid var(--border, #3c3c3c);
}

.palette-dialog-range-preview .range-color {
    flex: 1;
    min-width: 0;
}

/* ── Footer ─────────────────────────────────────────────────────── */

.palette-dialog-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--border, #3c3c3c);
}

.palette-dialog-6bit {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dim, #888);
    margin-bottom: 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border, #3c3c3c);
}

.palette-dialog-6bit input[type="checkbox"] {
    accent-color: var(--accent, #007acc);
}

.palette-dialog-footer-btns {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ped-footer-sep {
    width: 1px;
    height: 20px;
    background: var(--border, #3c3c3c);
}

.palette-dialog-footer button {
    padding: 4px 16px;
    border: 1px solid var(--border, #3c3c3c);
    border-radius: 3px;
    background: var(--bg-input, #3c3c3c);
    color: var(--text, #ccc);
    cursor: pointer;
    font-size: 13px;
}

.palette-dialog-footer button:hover {
    background: var(--bg-hover, #454545);
}

.palette-dialog-footer button.primary {
    background: var(--accent, #007acc);
    color: var(--text-bright, #fff);
    border-color: var(--accent, #007acc);
}

.palette-dialog-footer button.primary:hover {
    opacity: 0.9;
}