/* ================================================================
   菜刀客在线工具页 · special-symbol.html 私有样式
   需在 /css/common.css 之后加载。
   ================================================================ */

/* ---- 主体布局：左侧收集箱 + 分类速查，右侧符号大全 ---- */
.main {
    grid-template-columns: 300px 1fr;
    align-items: start;
}

.left-col {
    display: flex;
    flex-direction: column;
    gap: 15px;
    position: sticky;
    top: 70px;
}

/* ---- 收集箱 ---- */
.collector-box {
    min-height: 130px;
    resize: vertical;
    line-height: 1.7;
    font-size: 15px;
    font-family: inherit;
}

/* ---- 分类速查 ---- */
.cat-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 12px;
    max-height: 320px;
    overflow: auto;
}

.cat-nav-item {
    padding: 7px 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #ffffff;
    color: #374151;
    font-size: 12px;
    text-align: left;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: all 0.2s;
}

.cat-nav-item:hover {
    border-color: #667eea;
    color: #667eea;
}

.cat-nav-item.active {
    border-color: #667eea;
    background: #eef2ff;
    color: #4338ca;
    font-weight: 600;
}

/* ---- 右栏搜索工具栏 ---- */
.symbol-toolbar {
    flex-direction: row;
    gap: 8px;
}

.symbol-search {
    flex: 1;
}

/* ---- 符号正文 ---- */
.symbol-body {
    padding: 6px 15px 15px;
}

.sym-section {
    scroll-margin-top: 74px;
    padding-top: 12px;
}

.sym-section + .sym-section {
    border-top: 1px solid #f0f1f3;
    margin-top: 14px;
}

.sym-section-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 0 2px 10px;
}

.sym-section-title {
    font-size: 15px;
    color: #374151;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.category-no {
    font-size: 12px;
    font-weight: 600;
    color: #4338ca;
    background: #eef2ff;
    border-radius: 4px;
    padding: 2px 6px;
    flex: none;
}

.sym-count {
    font-size: 12px;
    color: #9ca3af;
    font-weight: 400;
}

.cat-copy {
    flex: none;
}

/* ---- 符号网格 ---- */
.symbol-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(46px, 1fr));
    gap: 6px;
}

.symbol-grid.flow {
    display: flex;
    flex-wrap: wrap;
}

.symbol-grid.flow .sym-item {
    width: auto;
}

.sym-item {
    min-height: 36px;
    padding: 4px 6px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    background: #ffffff;
    color: #333;
    font-size: 17px;
    line-height: 1.4;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s;
    word-break: break-all;
}

.sym-item:hover {
    border-color: #667eea;
    color: #4338ca;
    box-shadow: 0 0 0 3px rgba(102,126,234,0.15);
    transform: translateY(-1px);
}

.symbol-grid.flow .sym-item {
    font-size: 14px;
}

.sym-item.pulse {
    animation: symPop 0.28s ease;
}

@keyframes symPop {
    0% { transform: scale(1); }
    40% { transform: scale(1.25); background: #eef2ff; border-color: #667eea; }
    100% { transform: scale(1); }
}

/* ---- 小屏适配 ---- */
@media (max-width: 900px) {
    .main {
        grid-template-columns: 1fr;
    }

    .left-col {
        position: static;
        top: auto;
    }

    .symbol-grid {
        grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
    }
}

@media (max-width: 600px) {
    .collector-box {
        min-height: 100px;
    }

    .sym-section-head {
        align-items: flex-start;
    }

    .sym-section-title {
        flex-wrap: wrap;
    }
}