/* ============================================================
   CSS 阴影生成器 —— 页面私有样式（/devtools/css-shadow）
   通用结构复用 devtools.css，颜色只用 --c-* 变量或 rgba，自动适配黑夜模式
   ============================================================ */

[hidden] { display: none; }

/* 预览舞台：明/暗两套底色 */
.cs-stage {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 260px;
    border-radius: 14px;
    border: 1px solid var(--c-border);
    transition: background .2s ease;
    margin-bottom: 14px;
}

.cs-stage-light { background: #f1f4f9; }
.cs-stage-dark  { background: #2b3245; }

/* 预览卡片 */
.cs-box {
    width: 180px;
    height: 120px;
    border-radius: 16px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow .1s ease, border-radius .1s ease;
}

.cs-box-txt {
    font-size: 13.5px;
    font-weight: 700;
    color: #64748b;
    letter-spacing: .5px;
    user-select: none;
}

/* 参数栅格 */
.cs-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}

.cs-range {
    width: 100%;
    accent-color: var(--c-primary);
}

.cs-color {
    height: 38px;
    padding: 2px;
    cursor: pointer;
}

.cs-inset {
    display: inline-flex;
    margin-bottom: 6px;
}

/* 阴影层列表 */
.cs-layers {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.cs-layer {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px 6px 12px;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    background: var(--c-bg-soft);
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--c-text-muted);
    transition: all .15s ease;
}

.cs-layer:hover { border-color: var(--c-primary); }

.cs-layer.active {
    border-color: var(--c-primary);
    background: var(--c-primary-soft);
    color: var(--c-primary);
}

.cs-layer .swatch {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    border: 1px solid rgba(0, 0, 0, .18);
}

.cs-layer-del {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 1px solid var(--c-border);
    background: var(--c-surface);
    color: var(--c-text-muted);
    cursor: pointer;
    font-size: 11px;
    line-height: 1;
}

.cs-layer-del:hover {
    color: #ff4d79;
    border-color: rgba(255, 77, 121, .6);
}

.cs-layer-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.cs-cur-head { margin-top: 18px; }
.cs-cur-head span { color: var(--c-primary); }

/* 精选模板 */
.cs-presets {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.cs-preset {
    height: 72px;
    border-radius: 10px;
    border: 1px solid var(--c-border);
    background: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12.5px;
    font-weight: 600;
    color: #64748b;
    padding: 0;
    transition: transform .15s ease;
}

.cs-preset:hover { transform: translateY(-2px); }

@media (max-width: 640px) {
    .cs-grid { grid-template-columns: 1fr; }
    .cs-presets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}