/* 文件：wwwroot/css/navmenu.css — TTQS 側欄優先版面 + 青綠成長主題 */

/* 0. 主題色與佈局變數 */
:root {
    --sidebar-base-width: 250px;

    /* 青綠／成長感主題 */
    --sidebar-bg: #0b2b28;
    --sidebar-bg-2: #071f1c;
    --sidebar-brand-bg: #06201d;
    --sidebar-text: #c3ded6;
    --sidebar-text-dim: #8fb3aa;
    --sidebar-hover: #12433c;
    --sidebar-group-bg: #0a2622;
    --sidebar-subitem-bg: #071e1b;

    --accent: #34d399;         /* 翡翠綠點綴 */
    --accent-strong: #0d9488;  /* 主按鈕 / active */

    --topbar-bg: #ffffff;
    --topbar-border: #e5e9f0;
    --topbar-text: #1f2d3d;

    --content-bg: #f5f7fa;
}

/* 1. 佈局核心：Grid（左側欄跨兩列、右上精簡頂列） */
.page-grid {
    display: grid;
    grid-template-columns: var(--sidebar-width, var(--sidebar-base-width)) 1fr;
    grid-template-rows: 60px 1fr;
    height: 100vh;
    transition: grid-template-columns 0.25s ease-in-out;
}
.page-grid.collapse-sidebar {
    --sidebar-width: 0px;
}

/* 2. 側邊欄（跨越 row 1 / row 2 全高） */
.sidebar-area {
    grid-column: 1;
    grid-row: 1 / 3;
    background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--sidebar-bg-2) 100%);
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.04);
}

/* 品牌區（側欄頂端） */
.sidebar-brand {
    height: 60px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 1.1rem;
    background: var(--sidebar-brand-bg);
    color: #fff !important;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar-brand .brand-icon {
    font-size: 1.6rem;
    color: var(--accent);
    flex-shrink: 0;
    filter: drop-shadow(0 0 6px rgba(52, 211, 153, 0.5));
}
.sidebar-brand .brand-text {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: linear-gradient(90deg, #fff 0%, var(--accent) 120%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 3. 頂列（僅在內容欄上方） */
.header {
    grid-column: 2;
    grid-row: 1;
    z-index: 900;
    background-color: var(--topbar-bg);
    border-bottom: 1px solid var(--topbar-border);
}
.header .topbar {
    display: flex;
    align-items: center;
    height: 60px;
    width: 100%;
    padding: 0 1.25rem;
    gap: 0.5rem;
}
.topbar-toggle {
    border: none;
    background: transparent;
    color: var(--topbar-text);
    font-size: 1.4rem;
    line-height: 1;
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    cursor: pointer;
}
.topbar-toggle:hover { background: #eef1f6; }
.topbar-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--topbar-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.topbar-right { margin-left: auto; display: flex; align-items: center; }

/* 使用者下拉 */
.user-dropdown { position: relative; }
.user-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--topbar-border);
    background: #fff;
    color: var(--topbar-text);
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.9rem;
}
.user-dropdown-toggle:hover { background: #f5f7fa; }
.user-dropdown-toggle .bi-person-circle { font-size: 1.15rem; color: var(--accent-strong); }
.user-dropdown-toggle .user-name { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-dropdown-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 200px;
    background: #fff;
    border: 1px solid var(--topbar-border);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(15, 37, 64, 0.18);
    padding: 0.4rem;
    z-index: 1100;
}
.user-dropdown-menu a,
.user-dropdown-menu button {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0.55rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--topbar-text);
    text-decoration: none;
    font-size: 0.9rem;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
}
.user-dropdown-menu a:hover,
.user-dropdown-menu button:hover { background: #f0f4f9; color: var(--accent-strong); }
.user-dropdown-menu .dropdown-divider {
    height: 1px; background: var(--topbar-border); margin: 0.35rem 0.25rem;
}

/* 4. 內容區 */
.content-area {
    grid-column: 2;
    grid-row: 2;
    overflow-y: auto;
    background-color: var(--content-bg);
}

/* 5. 選單連結樣式 */
.nav-link {
    color: var(--sidebar-text) !important;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
}
.nav-link:hover { background-color: var(--sidebar-hover) !important; color: #fff !important; }

/* 頂層單項（首頁 / 我的關注 / 所有待辦） */
.sidebar-area > nav > .nav-link.nav-group-item {
    padding: 0.75rem 1.1rem !important;
}

/* 群組標題 */
.nav-group-toggle {
    all: unset;
    display: flex;
    align-items: center;
    width: 100%;
    cursor: pointer;
    background-color: var(--sidebar-group-bg);
    color: #fff !important;
    font-weight: 700;
    padding: 0.75rem 1.1rem;
    justify-content: flex-start !important;
}
.nav-group-toggle:hover { background-color: var(--sidebar-hover); }
.nav-group-title {
    margin-left: 12px;
    text-align: left !important;
    font-weight: 700;
    flex-grow: 0;
    margin-right: 1.5rem;
}

/* 折疊動畫 */
.nav-group-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}
.nav-group-content.expanded {
    max-height: 2000px;
    transition: max-height 0.3s ease-in;
}

/* 群組子連結 */
.nav-group-item {
    display: block !important;
    width: 100%;
    background-color: var(--sidebar-subitem-bg);
    color: var(--sidebar-text-dim) !important;
    text-align: left !important;
    padding: 0.65rem 1.1rem 0.65rem 3.2rem !important;
}
.nav-link.nav-group-item:hover {
    background-color: var(--sidebar-hover) !important;
    color: #fff !important;
}

/* active */
.nav-link.active {
    background-color: var(--accent-strong) !important;
    color: #fff !important;
    font-weight: 700;
    box-shadow: inset 3px 0 0 var(--accent);
}

/* 選單圖示（黑色 SVG → 反白配深色側欄） */
.nav-icon-img {
    width: 1.2rem; height: 1.2rem; vertical-align: middle;
    margin-right: 0.5rem; filter: invert(100%);
}
.nav-icon-group-img {
    width: 1.5rem; height: 1.5rem; vertical-align: middle;
    margin-right: 0.5rem; filter: invert(100%);
}
/* 群組 Bootstrap 圖示（bi …）— 對齊 svg 版尺寸、白色 */
.nav-group-bi-icon {
    display: inline-block;
    width: 1.5rem;
    font-size: 1.25rem;
    line-height: 1;
    text-align: center;
    color: #fff;
    vertical-align: middle;
    margin-right: 0.5rem;
}

/* 6. 折疊狀態隱藏文字 */
.page-grid.collapse-sidebar .sidebar-brand .brand-text,
.page-grid.collapse-sidebar .nav-group-title,
.page-grid.collapse-sidebar .nav-link span:not(.oi) {
    display: none !important;
    width: 0 !important;
    opacity: 0;
}

/* ============================================
 * RWD：手機版（< 768px）
 * 側欄改為覆蓋在內容上方
 * ============================================ */
@media (max-width: 767.98px) {
    .page-grid {
        grid-template-columns: 0 1fr;
        --sidebar-width: 0px;
    }
    .page-grid.collapse-sidebar { grid-template-columns: 0 1fr; }

    .page-grid:not(.collapse-sidebar) .sidebar-area {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        width: 250px;
        z-index: 1040;
        box-shadow: 4px 0 12px rgba(0, 0, 0, 0.35);
    }
    .header { grid-column: 1 / 3; }
    .content-area { grid-column: 1 / 3; }
    .topbar-title { font-size: 1.05rem; }
}