/* ==========================================================================
   Isolated Custom Canvas Color Picker Component (Modal Toggle Edition)
   ========================================================================== */
.picker-component-wrapper {
    position: relative;
    display: inline-block;
}

.custom-picker-container {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    width: 280px;
    background: #FFFFFF;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    gap: 14px;
    font-family: system-ui, -apple-system, sans-serif;
    box-sizing: border-box;
    z-index: 1000;
    transition: opacity 0.15s ease, transform 0.15s ease;
    opacity: 1;
    transform: translateY(0);
}

/* Modifier state to cleanly hide component until click trigger events fire */
.custom-picker-container.is-hidden {
    display: none !important;
    opacity: 0 !important;
    transform: translateY(-8px);
    pointer-events: none;
}

/* 1. Checkerboard Background Mesh Wrapper */
.checker-grid-bg {
    background-color: #ffffff;
    background-image: linear-gradient(45deg, #e2e8f0 25%, transparent 25%), 
                      linear-gradient(-45deg, #e2e8f0 25%, transparent 25%), 
                      linear-gradient(45deg, transparent 75%, #e2e8f0 75%), 
                      linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
    background-size: 12px 12px;
    background-position: 0 0, 0 6px, 6px -6px, -6px 0px;
}

/* 2. Color Gradient Box Canvas */
.picker-saturation-canvas {
    position: relative;
    width: 100%;
    height: 150px;
    border-radius: 8px 8px 0 0;
    cursor: crosshair;
    overflow: hidden;
}

.canvas-color-layer {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
}

.canvas-white-gradient {
    background: linear-gradient(to right, #fff, transparent);
}

.canvas-black-gradient {
    background: linear-gradient(to top, #000, transparent);
}

.canvas-selector-node {
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid #000000;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    box-shadow: 0 0 0 1.5px #ffffff;
}

/* 3. Custom Slider Tracks Row */
.picker-slider-wrapper {
    position: relative;
    width: 100%;
    height: 12px;
    border-radius: 6px;
}

.picker-slider-wrapper input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 100%;
    background: transparent;
    position: absolute;
    top: 0; left: 0;
    margin: 0;
    cursor: pointer;
    z-index: 2;
}

/* Native Slider Thumb Formatting Overrides */
.picker-slider-wrapper input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid #000000;
    background: transparent;
    box-shadow: 0 0 0 1.5px #ffffff;
    cursor: pointer;
}

.picker-slider-wrapper input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid #000000;
    background: transparent;
    box-shadow: 0 0 0 1.5px #ffffff;
    cursor: pointer;
}

/* Hue Rainbow Gradient Track */
.hue-gradient-track {
    background: linear-gradient(to right, #ff0000 0%, #ffff00 17%, #00ff00 33%, #00ffff 50%, #0000ff 67%, #ff00ff 83%, #ff0000 100%);
    z-index: 1;
}

/* Dynamic Transparency Range Track Container */
.alpha-gradient-track {
    z-index: 1;
    overflow: hidden;
}

.alpha-color-overlay {
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, transparent, var(--active-base-hex, #ff0000));
}

/* 4. Swatch Grid Layout Matrix Container */
.swatch-grid-presets {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 4px 0;
}

.preset-tier-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    width: 100%;
}

.preset-chip-node {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.1s ease;
}

.preset-chip-node:hover {
    transform: scale(1.1);
}
/* 5. Bottom Navigation Control Tabs Row */
.picker-format-tabs {
    display: flex;
    justify-content: space-between;
    background: #f1f5f9;
    padding: 2px;
    border-radius: 6px;
}

.tab-select-btn {
    flex: 1;
    background: transparent;
    border: none;
    font-size: 11px;
    font-weight: 700;
    color: #64748b;
    padding: 6px 0;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
}

.tab-select-btn.active {
    background: #ffffff;
    color: #0f172a;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* 6. Footer Input Field Action Row */
.picker-footer-controls {
    display: flex;
    gap: 6px;
    height: 36px;
}

.preview-block-mesh {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    border: 1px solid #e2e8f0;
}

.live-color-fluid-preview {
    width: 100%;
    height: 100%;
}

.text-output-field {
    flex: 1;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: #f8fafc;
    padding: 0 10px;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    outline: none;
}

.action-icon-trigger {
    width: 36px;
    height: 36px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748b;
}

.action-icon-trigger:hover {
    background: #f8fafc;
    color: #0f172a;
}

.btn-confirm-check {
    background: #fffbeb;
    border-color: #fef08a;
    color: #ca8a04;
}

.btn-confirm-check:hover {
    background: #fef9c3;
}