/*
 * ========================================
 * nav-styles.css - 生泰合成工業導覽列樣式
 * ========================================
 *
 * 架構說明:
 * 1. .navigation-wrapper - 實際導覽列元素 (從 shared/navigation.html 動態載入)
 * 2. #navigation-container - 導覽列容器 (用於模組化載入和樣式增強)
 *
 * 運作流程:
 * HTML頁面 → unified-module-loader.js → 載入 shared/navigation.html
 * → 將 .navigation-wrapper 插入 #navigation-container
 *
 * 最後更新: 2025-12-11
 * ========================================
 */

:root {
    --primary-color: #0077CC;
    --secondary-color: #0066cc;
    --gradient-start: #2B8BD2;
    --gradient-end: #1D6396;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --hover-color: #FF9933;
}

/* Header Styles */
.header-section {
    background: linear-gradient(to bottom, #ffffff 0%, #f8fbff 100%);
    padding: 0.4rem 0;  /* 從 1rem 縮減到 0.4rem,減少約 10px 高度 */
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(to right, #0052CC, #00B8D9) 1;
    position: relative;
}

.header-section::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(to right, #0052CC 0%, #00B8D9 100%);
    opacity: 0.3;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.2rem;  /* 從 2rem 減少到 1.2rem,提升精實科技感 */
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
}

.company-logo {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 200px;
    max-width: 500px;
    gap: 0.8rem;
    padding: 0.2rem 0.3rem;  /* 從 0.5rem 減少到 0.2rem 0.3rem,更精實 */
    border-radius: 12px;
    transition: all 0.3s ease;
}

/* .company-logo:hover {
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.03) 0%, rgba(0, 184, 217, 0.03) 100%);
    box-shadow: 0 4px 16px rgba(0, 82, 204, 0.08);
} */

.company-logo-img {
    max-height: 50px;
    max-width: 150px;
    width: auto;
    height: auto;
    object-fit: contain;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(0, 82, 204, 0.3));
    transition: all 0.3s ease;
}

.company-logo-img:hover {
    /* filter: drop-shadow(0 4px 12px rgba(0, 184, 217, 0.5)); */
    transform: scale(1.05);
}

.company-name {
    background: linear-gradient(135deg, #0052CC 0%, #00B8D9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
    line-height: 1.2;
    flex: 1;
    display: flex;
    flex-direction: column;
    filter: drop-shadow(0 1px 2px rgba(0, 82, 204, 0.2));
}

.company-name-tw {
    margin-top:10px;
    font-size: 1.4rem;
}

.company-name-en {
    font-size: 0.91rem;
}

.contact-links {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.contact-links a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    transition: all 0.3s ease;
    border: 1px solid var(--primary-color);
    font-size: 0.875rem;
}

.contact-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.lang-dropdown {
    position: relative;
}

.lang-dropdown-btn {
    color: var(--primary-color);
    background: transparent;
    border: 1px solid var(--primary-color);
    border-radius: 20px;
    padding: 0.3rem 0.8rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.lang-dropdown-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.lang-dropdown-btn:hover .lang-arrow {
    color: white;
}

.lang-arrow {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
}

.lang-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    min-width: 120px;
    padding: 4px 0 !important;
    margin: 0 !important;
    list-style: none !important;
    z-index: 9999;
}

.lang-dropdown-menu.open {
    display: block;
}

.lang-dropdown-menu li,
.lang-dropdown-menu li:before {
    list-style: none !important;
    list-style-type: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.lang-dropdown-menu li a {
    display: block !important;
    padding: 0.5rem 1rem !important;
    font-size: 0.875rem !important;
    color: #475569 !important;
    text-decoration: none !important;
    white-space: nowrap;
    border: none !important;
    border-radius: 0 !important;
    background: transparent !important;
    transform: none !important;
    transition: background 0.15s;
}

.lang-dropdown-menu li a:hover {
    background: #f0f9ff !important;
    color: var(--primary-color) !important;
    transform: none !important;
}

/* Navigation Menu - Fixed with Gradient */
/* 註: 不使用 sticky,因為外層的 #navigation-container 已經是 sticky */
.navigation-wrapper {
    background: linear-gradient(to right, #0052CC 0%, #00B8D9 100%);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2), 0 4px 16px rgba(0, 82, 204, 0.15);
    position: relative;  /* 改為 relative,避免與 #navigation-container 的 sticky 衝突 */
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
    padding: 0 1rem;
    box-sizing: border-box;
}

.navigation-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

/* Scrolled state enhancement */
.navigation-wrapper.is-scrolled {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25), 0 6px 20px rgba(0, 82, 204, 0.2);
    background: linear-gradient(to right, #003D99 0%, #00A3BF 100%);
}

.main-nav {
    padding: 0;
    margin: 0;
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0;
    min-width: 140px;
    justify-content: center;
    white-space: nowrap;
    position: relative;
    z-index: 2;
}

.nav-item > a i {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.nav-item:hover > a,
.nav-item.active > a {
    background: rgba(255,255,255,0.2);
    font-weight: bold;
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #429ADA;
    min-width: 220px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    border-radius: 0 0 8px 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 9999;
    list-style: none;
    padding: 0;
    margin: 0;
    pointer-events: none;
    border: 1px solid rgba(255,255,255,0.2);
}

.nav-item:hover > .dropdown-menu,
.nav-item:focus-within > .dropdown-menu {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: auto !important;
    display: block !important;
}

.nav-item:hover::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 220px;
    height: 10px;
    z-index: 9998;
}

.dropdown-menu li {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

/* --- 修改後的 Base 樣式 --- */
.dropdown-menu a {
    display: block;
    padding: 0.8rem 1rem;
    color: white;
    text-decoration: none;
    font-size: 16px;
    position: relative;
    z-index: 2;

    /* [關鍵修改 1] Transition */
    /* 原本只過渡 background，改為 'all' 以便讓文字顏色和邊框顏色也有平滑效果 */
    transition: all 0.3s ease;

    /* [關鍵新增 1] 預留邊框空間 */
    /* 預先加上透明的左側邊框，這樣 hover 時改變顏色才不會導致文字向右跳動 */
    border-left: 4px solid transparent;
}

/* --- 新增 Hover 樣式 --- */
.dropdown-menu a:hover,
.dropdown-menu a:focus { /* 同時加入 focus 照顧鍵盤使用者 */
    /* [關鍵修改 2] 背景色 */
    /* 滑鼠移入時，背景變為純白 */
    background-color: rgb(240, 240, 240);

    /* [關鍵新增 2] 文字變色 */
    /* 背景變白後，文字需要變為深色以確保可讀性 (這裡使用深藍色) */
    color: #004a99;

    /* [關鍵新增 3] 左側強調線條 */
    /* 將左側邊框的顏色變為橘色 (呼應網頁上的按鈕)，形成視覺焦點 */
    /* border-left-color: #ff9900; */
    /* border-left-color: #00c3ff; */
    /* border-left-color:  #004A99 ; */
    border-left-color: #0077CC;
    
    
}
/* Sub-dropdown */
.dropdown-menu .dropdown-submenu {
    position: relative;
}

.dropdown-menu .dropdown-submenu > a::after {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    float: right;
    margin-top: 2px;
}

.dropdown-submenu .dropdown-menu {
    top: 0;
    left: 100%;
    border-radius: 8px;
}

.dropdown-submenu:hover > .dropdown-menu,
.dropdown-submenu:focus-within > .dropdown-menu {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: auto !important;
    display: block !important;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    padding: 0.5rem;
    cursor: pointer;
}

/* Responsive Design */
@media (min-width: 1200px) {
    .logo-container,
    .nav-container {
        padding: 0 1.5rem;  /* 從 2rem 減少到 1.5rem,保持精實感 */
    }

    .company-logo-img {
        max-height: 60px;
        max-width: 168px;
    }

    .company-name {
        font-size: 1.8rem;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .company-logo-img {
        max-height: 54px;
        max-width: 156px;
    }
    
    .company-name {
        font-size: 1.44rem;
    }
}

@media (max-width: 768px) {
    /* Logo & Header */
    .logo-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1rem;
    }

    .company-logo {
        justify-content: center;
        min-width: auto;
        max-width: none;
        flex: none;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .company-logo-img {
        max-height: 42px;
        max-width: 120px;
    }

    .company-name {
        font-size: 1.32rem;
    }

    .contact-links {
        justify-content: center;
    }

    /* Mobile Menu Toggle */
    .mobile-menu-toggle {
        display: block;
        margin: 1rem auto;
    }

    /* Main Navigation */
    .main-nav,
    #navigation-container .main-nav {
        display: none;
        flex-direction: column;
        width: 100%;
    }

    .main-nav.show,
    #navigation-container .main-nav.show {
        display: flex !important;
    }

    .nav-item {
        width: 100%;
    }

    .nav-item > a {
        padding: 1rem;
        justify-content: flex-start;
        border-bottom: 1px solid rgba(255,255,255,0.2);
    }

    /* Dropdown Menu */
    .dropdown-menu,
    #navigation-container .dropdown-menu {
        position: static !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        box-shadow: none !important;
        border: none !important;
        background: rgba(0,0,0,0.05) !important;
        margin-left: 1rem !important;
        padding-left: 1rem !important;
        pointer-events: auto;
        display: none;
    }

    .dropdown-menu.show,
    #navigation-container .dropdown-menu.show {
        display: block !important;
    }

    .nav-item.mobile-open .dropdown-menu {
        display: block;
    }

    /* 有下拉選單的項目顯示箭頭 */
    #navigation-container .nav-item:has(.dropdown-menu) > a {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
    }

    #navigation-container .nav-item:has(.dropdown-menu) > a::after {
        content: "▼" !important;
        font-size: 0.8rem !important;
        transition: transform 0.3s ease !important;
        margin-left: auto !important;
    }
}

@media (max-width: 576px) {
    /* Logo & Header */
    .company-logo-img {
        max-height: 36px;
        max-width: 96px;
    }

    .company-name {
        font-size: 1.2rem;
    }

    /* Navigation Font Sizes */
    #navigation-container .navbar-nav .nav-link {
        font-size: 16px !important;
    }
}

/* ========================================
   Navigation Container Styles
   用於所有頁面的導覽列容器
   ======================================== */

/* 導覽列容器固定樣式 */
/*
 * 重要: 容器本身必須是 sticky,因為內層的 .navigation-wrapper 是動態載入的
 * 如果模組載入延遲,至少容器會先固定在頂部
 */
#navigation-container {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

/* 模組載入狀態樣式 */
.module-loading {
    background: linear-gradient(to right, #0052CC 0%, #00B8D9 100%);
    height: 60px;  /* 預設高度,如需要可在個別頁面覆寫 */
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9rem;
}

/* ========================================
   Navigation Font Sizes
   導覽列字體大小設定
   ======================================== */

#navigation-container .navbar-nav .nav-link {
    font-size: 16px !important;
    font-weight: 500 !important;
}

#navigation-container .navbar-brand {
    font-size: 20px !important;
}

#navigation-container .dropdown-item {
    font-size: 14px !important;
}

/* ========================================
   Mobile Navigation Support
   手機版導覽列支援
   ======================================== */

/* 手機版選單切換按鈕 */
#navigation-container .mobile-menu-toggle {
    border: none !important;
    padding: 0.25rem 0.5rem !important;
    background: transparent !important;
    color: var(--primary-color) !important;
}

#navigation-container .mobile-menu-toggle:focus {
    box-shadow: none !important;
}

/* 主選單動畫效果 */
#navigation-container .main-nav {
    transition: all 0.3s ease !important;
}

#navigation-container .main-nav.show {
    display: block !important;
}

/* ========================================
   Responsive Design - Mobile
   響應式設計 - 手機版
   註: 手機版樣式已整合至上方的 @media (max-width: 768px) 區塊
   ======================================== */

/* ========================================
   Responsive Design - Tablet
   響應式設計 - 平板版
   ======================================== */

@media (max-width: 991.98px) {
    /* 選單項目分隔線 */
    #navigation-container .main-nav .nav-item {
        border-bottom: 1px solid rgba(0,0,0,0.1) !important;
    }
    
    #navigation-container .main-nav .nav-item:last-child {
        border-bottom: none !important;
    }
    
    /* 平板版字體調整 */
    #navigation-container .navbar-nav .nav-link {
        font-size: 18px !important;
    }

    #navigation-container .navbar-brand {
        font-size: 18px !important;
    }
}

/* ========================================
   Responsive Design - Small Mobile
   響應式設計 - 小螢幕手機
   註: 小螢幕樣式已整合至上方的 @media (max-width: 576px) 區塊
   ======================================== */