/* ===== 1. 變數定義：統一管理色彩與風格 ===== */
:root {
    --primary-blue: #057dfc;
    --primary-color: #44c57e;
    --accent-color: #4ce8e3;
    --red-title: #ff5252;
    --bg-body: #ddd;
    --container-width: 1000px;
    --transition-speed: 0.3s;
    --bs-link-color-rgb: #000;
    --bg-navbar-color-rgb: rgb(7 149 166);
}

[data-bs-theme="light"] {
    --bs-link-color-rgb: #000;
    --primary-color: #44c57e;
    --accent-color: #4ce8e3;
    --red-title: #ff5252;
    --bg-body: #ddd;
    --container-width: 1000px;
    --transition-speed: 0.3s;
}

/* 深色模式變數覆蓋 */
[data-bs-theme="dark"] {
    --bg-input: #000;
    --border-color: #fff;
    --bg-body: #121212;
    --container-bg: #000;
    --text-main: #eee;
    --red-title: #ff6b6b;
    --bs-dark-rgb: #e2e0e0;
    --bs-link-color-rgb: #fff;
    --bs-navbar-active-color: #ddd;
    --bs-white-rgb: 221, 221, 221;
    --bs-dark-rgb_1: 33, 37, 41;
}

/* ===== 2. 全域重設 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: default;
    user-select: none;
}

body {
    background-color: var(--bg-body);
    font-family: "Microsoft JhengHei", "Segoe UI", system-ui, sans-serif;
    color: var(--text-main, #333);
    transition: background-color var(--transition-speed);
}

a,
.btn,
.nav-link,
.dropdown-item,
[role="button"] {
    cursor: pointer !important;
}

/* ===== 3. 佈局容器 ===== */
.container-fluid{
    background-color: var(--container-bg, #fff);
}

.container {
    background-color: var(--container-bg, #fff);
    max-width: var(--container-width);
    margin: 0 auto;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
}

.navbar-bg-default {
    background-color: var(--bg-navbar-color-rgb);
}

.navbar .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
    --bs-navbar-toggler-icon-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2833, 37, 41, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M7 7L23 23M7 23L23 7'/%3e%3c/svg%3e") !important;
}

[data-bs-theme="dark"] .navbar .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
    --bs-navbar-toggler-icon-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M7 7L23 23M7 23L23 7'/%3e%3c/svg%3e") !important;
}

.main,
.footer {
    padding: 10px;
}

.btn-close-white {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* 圓角統一設定 */
.rounded-4 {
    border-radius: 1rem !important;
}

/* 卡片與懸浮效果 */
.project-card {
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

[data-bs-theme="dark"] .project-card .card-header.bg-white {
    --bs-bg-opacity: 0.5;
    background-color: rgba(var(--bs-white-rgb), var(--bs-bg-opacity)) !important;
}

[data-bs-theme="dark"] #imageModal .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%) !important;
}

[data-bs-theme="dark"] #imageModal.bg-dark {
    background-color: rgba(var(--bs-dark-rgb_1), var(--bs-bg-opacity)) !important;
}
.no-prj-c-hover.project-card {
    transition: none;
}

.no-prj-c-hover.project-card:hover {
    transform: none !important;
    box-shadow: none !important;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1) !important;
}

/* 核心：圖片比例對齊解決方案 */
.img-container {
    width: 100%;
    /* 設定 16:9 的比例，讓兩張圖高度永遠一樣 */
    aspect-ratio: 16 / 9;
    background-color: #f8f9fa;
}

.card-img-custom {
    width: 100%;
    height: 100%;
    /* 核心屬性：裁切並填充，不拉伸圖片 */
    object-fit: cover;
    /* 截圖通常重點在頂部選單，所以對齊頂部裁切 */
    object-position: top;
}

/* ===== 4. Bootstrap 元件修正 (重點：下拉選單與導覽列) ===== */

/* 移除導覽列按鈕藍色外框 */
.navbar-toggler:focus {
    box-shadow: none !important;
    outline: none;
}

/* 下拉選單修正：處理偏移與對齊 */
.dropdown-menu {
    margin-top: 0.5rem !important;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    z-index: 1060;
}

.dropdown-item:active {
    background-color: var(--primary-color);
}

/* 移除輸入框、按鈕獲得焦點時的預設藍框 */
.form-control:focus,
.btn:focus,
.outline-0:focus {
    box-shadow: none !important;
    outline: none !important;
}

/* ===== 5. 自定義元件樣式 ===== */

/* 標題樣式 */
.card-title {
    color: var(--primary-color);
    font-size: 1.25rem;
    font-weight: 700;
    /* border-bottom: 3px solid var(--accent-color); */
    border-bottom: 3px solid;
    border-image-source: linear-gradient(80deg, rgb(216, 129, 129), rgb(217, 52, 52) 25%, #51b960, #34a853, #1967d2 75%);
    border-image-slice: 1;
    padding-bottom: 8px;
    margin-bottom: 1rem;
}

.list-group-item {
    background-color: unset;
}

/* 搜尋框與特殊輸入框 */
.outline-input-0 {
    background: transparent !important;
    border: 1px solid #ced4da;
    transition: border-color 0.2s;
}

.outline-input-0:focus {
    border-color: var(--primary-color);
}

/* ===== 6. 響應式配置 (RWD) ===== */
@media (max-width: 1000px) {
    .container {
        width: 100%;
        max-width: 100%;
    }

    .list-group-item {
        text-align: center;
    }

    .card {
        height: fit-content;
    }
}

/* ===== 7. 滑動滾輪與固定元件 ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-thumb {
    background: #666;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #444;
}

/* ===== 固定按鈕通用樣式優化 ===== */
.fixed-action-btn {
    position: fixed;
    right: 25px;
    bottom: 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    /* 按鈕之間的間距 */
    z-index: 1050;
}

.fixed-action-btn .btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 懸浮放大效果 */
.fixed-action-btn .btn:hover {
    transform: scale(1.1) translateY(-3px);
}

/* Back-to-Top 預設隱藏，滾動後顯示 */
#backToTop {
    display: none;
    /* 初始狀態隱藏，由 JS 控制 */
    background-color: #6c757d;
    border: none;
}

#backToTop.show {
    display: flex;
    animation: fadeIn 0.4s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 📅 現代化日曆重構 ===== */
#dcalendar {
    padding: 10px;
}

#dcalendar table {
    border-collapse: separate;
    border-spacing: 4px;
    /* 讓格子之間有間隙 */
    width: 100%;
    table-layout: fixed;
}

/* ===== 日曆紅色 H3 標題 ===== */
#dcalendar h3 {
    color: #ff5252 !important;
    /* 強制執行紅色 */
    font-size: 1.25rem;
    font-weight: 700;
    margin: 10px 0;
    text-align: left;
    border: none;
    /* 移除原本可能存在的底線 */
}

[data-bs-theme="dark"] #dcalendar h3 {
    color: #ff6b6b !important;
}

#dcalendar th {
    font-size: 13px;
    color: var(--primary-blue);
    padding: 8px 0;
    font-weight: 600;
}

#dcalendar td {
    text-align: center;
    height: 54px;
    /* 增加高度以容納農曆 */
    vertical-align: middle;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.03);
    /* 輕微底色 */
    transition: var(--transition-base);
    border: 1px solid transparent;
}

[data-bs-theme="dark"] #dcalendar td {
    background: rgba(255, 255, 255, 0.03);
}

/* 懸停效果 */
#dcalendar td:hover:not(:empty) {
    background: var(--bg-container);
    border-color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    text-align: center;
}

/* 國曆數字 */
.cal-date {
    display: block;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.2;
}

/* 農曆文字 */
.cal-lunar {
    display: block;
    font-size: 10px;
    color: var(--accent-gray);
    margin-top: 2px;
    text-align: center;
}

/* 今日標記 */
#dcalendar td[aria-Istoday="true"] {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0056b3 100%) !important;
    color: #fff !important;
    border: none;
    box-shadow: 0 4px 10px rgba(5, 125, 252, 0.4);
    text-align: center;
}

#dcalendar td[aria-Istoday="true"] .cal-lunar {
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
}

/* 週末顏色 */
#dcalendar th:first-child,
/* 週日 */
#dcalendar th:last-child {
    /* 週六 */
    color: #ff5252;
}

/* ===== 標題 H3 紅色樣式 ===== */
.h3[colspan="7"],
th[colspan="7"] {
    color: #ff5252;
    /* 明亮的紅色，深色模式也清晰 */
    font-size: 1.25rem;
    /* 適中的標題大小 */
    font-weight: 700;
    margin: 8px 0;
    text-align: center;
    /* 依照截圖居左 */
    letter-spacing: 1px;
}

/* 如果在深色模式下，可以微調紅色的飽和度讓眼睛更舒適 */
[data-bs-theme="dark"] .h3,
[data-bs-theme="dark"] th[colspan="7"] {
    color: #ff6b6b;
}

/* 針對日曆卡片內部的細節調整 */
.calendar-header {
    text-align: center;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color, #eee);
    margin-bottom: 15px;
}

/* 確保星期顯示（日、一...）也能對齊 */
#dcalendar th {
    text-align: center;
    font-size: 1rem;
    padding: 10px 0;
}

/* 修正您截圖中「今日」藍色區塊的字體顏色 */
#dcalendar td[aria-Istoday="true"] {
    text-align: center;
    background-color: #007bff;
    /* 截圖中的藍色 */
    color: #ffffff !important;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

/* 1. 修正容器：移除 inline-block 的干擾 */
.search-group {
    display: flex !important;
    /* 強制覆蓋 Bootstrap d-inline-block */
    align-items: center;
    /* width: 42px; */
    height: 42px;
    background: var(--bg-input, #D0D0D0);
    border: 1px solid var(--border-color, #000);
    border-radius: 21px;
    overflow: hidden;
    position: relative;
}

/* 2. 圖示固定：確保圖示不會被擠壓 */
.search-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: none !important;
    /* 移除內建邊框 */
    background: transparent !important;
}

/* 3. 搜尋盒：處理動畫與點擊區域 */
.search-box {
    flex-grow: 1;
}

.google-search-box {
    width: 100%;
}

.google-search-box input {
    cursor: auto;
}

/* 現代化導覽列樣式 */
#headerStky {
    position: sticky;
    top: 0;
    z-index: 1020;
    transition: all 0.3s ease;
}

.navbar-bg-default {
    background: rgba(255, 255, 255, 0.8) !important; /* 淺色模式毛玻璃 */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 0.8rem 1rem;
}

/* 深色模式適配 (若您的系統有切換機制) */
[data-bs-theme="dark"] .navbar-bg-default {
    background: rgba(33, 37, 41, 0.8) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* 導覽連結動畫 */
.nav-link {
    position: relative;
    font-weight: 500;
    margin: 0 5px;
    color: var(--bs-nav-link-color);
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: #0d6efd; /* 也可以換成您品牌的主色 */
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after, 
.nav-link.active::after {
    width: 80%;
}

/* 下拉選單美化 */
.dropdown-menu {
    border-radius: 12px !important;
    padding: 0.5rem;
    margin-top: 10px !important;
    animation: fadeInDown 0.3s ease;
}

.dropdown-toggle::after {
    border: none !important; /* 拔掉預設三角形 */
}

.dropdown-item {
    border-radius: 8px;
    padding: 0.6rem 1rem;
    transition: background 0.2s;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 時間顯示區塊 */
#system-datetime {
    font-family: 'JetBrains Mono', monospace; /* 若有安裝此字體 */
    letter-spacing: 1px;
    background: rgba(0,0,0,0.05);
    padding: 4px 12px;
    border-radius: 20px;
}

@media (max-width: 991.98px) {
    /* 1. 徹底移除手機版的藍色底線動畫 */
    .nav-link::after {
        display: none !important;
    }

    /* 2. 讓選單容器變漂亮 (卡片式設計) */
    .navbar-collapse {
        background: rgba(255, 255, 255, 0.98); /* 稍微不透明確保清晰 */
        margin-top: 10px;
        padding: 15px;
        border-radius: 16px;
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        border: 1px solid rgba(0, 0, 0, 0.05);
    }

    /* 深色模式適配 */
    [data-bs-theme="dark"] .navbar-collapse {
        background: rgba(33, 37, 41, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* 3. 優化選項間距與互動感 */
    .nav-item {
        margin-bottom: 5px; /* 選項之間留點空隙 */
    }

    .nav-link {
        padding: 12px 15px !important;
        border-radius: 10px;
        font-size: 1.05rem;
        transition: all 0.2s ease;
        display: flex;
        align-items: center;
        border-left: 4px solid transparent; /* 預設透明邊框 */
    }

    /* 當前頁面或點擊時的樣式 (用左側藍條取代底線) */
    .nav-link.active, .nav-link:active {
        background-color: rgba(13, 110, 253, 0.08);
        color: #0d6efd !important;
        border-left: 4px solid #0d6efd; /* 出現藍色指示條 */
        padding-left: 20px !important; /* 輕微位移動畫 */
    }

    /* 4. 下拉選單內部優化 */
    .dropdown-menu {
        background: rgba(0, 0, 0, 0.02) !important;
        border: none !important;
        margin: 5px 0 10px 15px !important; /* 讓子選單往右縮排 */
        padding: 0 !important;
    }

    .dropdown-item {
        padding: 10px 15px !important;
        font-size: 0.95rem;
    }

    /* 5. 時間顯示區塊調整 */
    #system-datetime {
        margin-top: 10px;
        padding: 8px 0;
        text-align: center;
        width: 100%;
        background: transparent; /* 拔掉背景，在手機版比較乾淨 */
        opacity: 0.6;
        font-size: 0.85rem;
    }
}

/* calendar loading */

/* 載入外層容器 */
#calendar-container {
    position: relative;
    min-height: 400px; /* 避免切換時高度縮得太小 */
}

/* 旋轉動畫本體 */
.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}