led-controller/docs/mockups/color-picker-chromium.css

/* Chromium-style Color Picker - Matches native browser color picker dialog */

.color-picker-container {
    position: relative;
    display: inline-block;
}

/* Preview button - opens the picker */
.color-picker-preview {
    width: 40px;
    height: 32px;
    border: 1px solid #d0d0d0;
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    background: none;
    transition: border-color 0.15s;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}

.color-picker-preview:hover {
    border-color: #8ab4f8;
}

.color-picker-preview:active {
    border-color: #4285f4;
}

/* Main picker panel - always visible when open, styled like Chromium dialog */
.color-picker-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    z-index: 1000;
    background: #ffffff;
    border: 1px solid #dadce0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15), 0 4px 16px rgba(0, 0, 0, 0.1);
    padding: 16px;
    min-width: 260px;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
}

/* Color area - main saturation/brightness square + hue slider */
.color-picker-area {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

/* Main color square - saturation (left-right) and brightness (top-bottom) */
.color-picker-main {
    position: relative;
    width: 200px;
    height: 200px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    overflow: hidden;
    cursor: crosshair;
    touch-action: none;
    background: #ffffff;
    flex-shrink: 0;
}

.color-picker-canvas {
    display: block;
    width: 100%;
    height: 100%;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* Cursor for main color area */
.color-picker-cursor {
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2), 0 2px 4px rgba(0, 0, 0, 0.1);
    pointer-events: none;
    transform: translate(-50%, -50%);
    top: 0;
    left: 0;
}

/* Hue slider - vertical strip on the right */
.color-picker-hue {
    position: relative;
    width: 24px;
    height: 200px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    touch-action: none;
    background: #ffffff;
    flex-shrink: 0;
}

/* Hue slider cursor/indicator */
.color-picker-hue-cursor {
    position: absolute;
    left: 0;
    right: 0;
    width: 100%;
    height: 6px;
    border: 2px solid #ffffff;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.1);
    pointer-events: none;
    transform: translateY(-50%);
    top: 0;
}

/* Controls section - hex and RGB inputs */
.color-picker-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Hex input field */
.color-picker-hex {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 13px;
    text-transform: uppercase;
    transition: border-color 0.15s, box-shadow 0.15s;
    background: #ffffff;
}

.color-picker-hex:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

/* RGB inputs container */
.color-picker-rgb {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.color-picker-rgb-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.color-picker-rgb-item label {
    font-size: 11px;
    font-weight: 500;
    color: #5f6368;
    text-align: left;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* RGB number input fields */
.color-picker-rgb-input {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid #dadce0;
    border-radius: 4px;
    font-size: 13px;
    text-align: left;
    transition: border-color 0.15s, box-shadow 0.15s;
    background: #ffffff;
    font-family: 'Roboto', sans-serif;
    -moz-appearance: textfield;
}

.color-picker-rgb-input::-webkit-outer-spin-button,
.color-picker-rgb-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.color-picker-rgb-input:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

/* Hide RGB sliders - Chromium uses only number inputs */
.color-picker-rgb-slider {
    display: none;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .color-picker-panel {
        left: auto;
        right: 0;
    }
    
    .color-picker-main {
        width: 180px;
        height: 180px;
    }
    
    .color-picker-hue {
        height: 180px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .color-picker-panel {
        background: #202124;
        border-color: #5f6368;
    }
    
    .color-picker-preview {
        border-color: #5f6368;
    }
    
    .color-picker-main,
    .color-picker-hue {
        border-color: #5f6368;
        background: #202124;
    }
    
    .color-picker-hex,
    .color-picker-rgb-input {
        background: #303134;
        border-color: #5f6368;
        color: #e8eaed;
    }
    
    .color-picker-rgb-item label {
        color: #9aa0a6;
    }
    
    .color-picker-hex:focus,
    .color-picker-rgb-input:focus {
        border-color: #8ab4f8;
        box-shadow: 0 0 0 2px rgba(138, 180, 248, 0.2);
    }
    
    .color-picker-preview:hover {
        border-color: #8ab4f8;
    }
}