/* ===== 自定义取色器组件样式(类名前缀 cp-,随 colorpicker.js 自动挂载) ===== */
/* 组件根 */
.cp-root {
    position: relative;
    display: flex;
    align-items: center;
    gap: 4px;
    width: 212px;
}
.cp-layer,
.cp-swatch {
    border-radius: var(--radius-lg, 8px);
}

/* 取色色块(棋盘格衬底 + 颜色层,点击弹出取色面板) */
.cp-swatch {
    position: relative;
    width: 140px;
    height: 140px;
    overflow: hidden;
    border: 1px solid var(--color-border, #d1d5db);
    background-image: conic-gradient(var(--color-checker-light, #e5e7eb) 0deg 90deg, var(--color-checker-dark, #d1d5db) 90deg 180deg, var(--color-checker-light, #e5e7eb) 180deg 270deg, var(--color-checker-dark, #d1d5db) 270deg 360deg);
    background-size: 16px 16px;
    cursor: pointer;
    transition: border-color var(--transition-fast, 0.15s);
}
.cp-swatch:focus-visible {
    outline: 2px solid var(--color-secondary, #2563eb);
    outline-offset: 2px;
}
.cp-layer {
    position: absolute;
    inset: 0;
}

/* Alpha 条(纵向,与色块间隔 4px,高度一致,向上拖动值增大,棋盘格衬底;悬浮轨道不改鼠标图标) */
.cp-alpha {
    position: relative;
    width: 24px;
    height: 140px;
    touch-action: none;
}
.cp-alpha-track {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    box-sizing: border-box;
    border: 1px solid var(--color-border, #d1d5db);
    background-image: linear-gradient(to top, rgba(0, 0, 0, 0), rgba(0, 0, 0, 1)), conic-gradient(var(--color-checker-light, #e5e7eb) 0deg 90deg, var(--color-checker-dark, #d1d5db) 90deg 180deg, var(--color-checker-light, #e5e7eb) 180deg 270deg, var(--color-checker-dark, #d1d5db) 270deg 360deg);
    background-size: 100% 100%, 4px 4px;
    border-radius: 2px;
}
.cp-alpha-thumb {
    left: 2px;
    top: 0;
}

/* Alpha 数值 */
.cp-alpha-value {
    min-width: 40px;
    text-align: center;
    font-family: var(--font-mono, monospace);
    font-size: 14px;
    color: var(--color-text-secondary, #6b7280);
    font-variant-numeric: tabular-nums;
}

/* 取色面板 */
.cp-panel {
    position: absolute;
    z-index: 1000;
    top: calc(100% + 6px);
    left: 0;
    width: 220px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--color-surface, #ffffff);
    border: 1px solid var(--color-border, #d1d5db);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.cp-hidden {
    display: none;
}

/* 饱和度/亮度平面 */
.cp-sv-wrap {
    position: relative;
    height: 150px;
}
.cp-sv {
    position: absolute;
    inset: 0;
    border-radius: 4px;
    background-image: linear-gradient(to top, #000, transparent), linear-gradient(to right, #fff, transparent);
    background-color: hsl(0, 100%, 50%);
    cursor: crosshair;
}

/* 色相条 */
.cp-hue-wrap {
    position: relative;
    height: 14px;
}
.cp-hue {
    position: absolute;
    inset: 0;
    border-radius: 7px;
    background-image: linear-gradient(to right, hsl(0, 100%, 50%), hsl(60, 100%, 50%), hsl(120, 100%, 50%), hsl(180, 100%, 50%), hsl(240, 100%, 50%), hsl(300, 100%, 50%), hsl(360, 100%, 50%));
    cursor: crosshair;
}

/* 缩略点(不透明实心,层级高于轨道) */
.cp-thumb {
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: #fff;
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
    cursor: grab;
    z-index: 1;
    transform: translate(-50%, -50%);
}
.cp-alpha.cp-dragging {
    cursor: grabbing;
}
.cp-sv-thumb {
    left: 0;
    top: 0;
}
.cp-hue-thumb {
    left: 0;
    top: 50%;
}

/* 预览与数值 */
.cp-info {
    display: flex;
    align-items: center;
    gap: 8px;
}
.cp-preview {
    width: 20px;
    height: 20px;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    background-color: #000;
}
.cp-hex {
    font-family: var(--font-mono, monospace);
    font-size: 13px;
    color: var(--color-text, #111827);
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
    .cp-root {
        width: 192px;
    }
    .cp-swatch {
        width: 120px;
        height: 120px;
    }
    .cp-alpha {
        height: 120px;
    }
}