/* ==========================================
   SideNavPanel 可重用組件
   版本: 1.0.0
   日期: 2026-01-24
   ========================================== */

/* 外層包裝（提供內邊距） */
.side-nav-panel-wrapper {
    padding: var(--spacing-lg);
}

/* 主容器佈局 */
.side-nav-panel-container {
    display: flex;
    gap: 2rem;
    height: calc(100vh - 180px);
}

/* 左側導航區 */
.side-nav-panel-nav {
    width: 200px;
    min-width: 200px;
    border-right: 1px solid var(--border-color, #E8E5E0);
    padding: 1rem 1rem 1rem 0;
    overflow-y: auto;
}

/* 導航項目 */
.side-nav-panel-item {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    border: none;
    background: transparent;
    color: var(--text-secondary, #78716C);
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    border-radius: var(--brand-radius-md, 12px);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.side-nav-panel-item:hover {
    background: var(--hover-bg, #F5F3EE);
    color: var(--text-primary, #1C1917);
}

.side-nav-panel-item.active {
    background: var(--color-accent);
    color: white;
    font-weight: 500;
}

/* 項目圖示 */
.side-nav-panel-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* 右側內容區 */
.side-nav-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

/* 內容頁面 */
.side-nav-panel-page {
    display: none;
}

.side-nav-panel-page.active {
    display: block;
}

.side-nav-panel-page h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary, #1C1917);
}