/**
 * style.css - 前台網站共用樣式
 *
 * 從 web/index.html 抽出，供 index.php / article.php / category.php / search.php 共用。
 * 配色主軸：金色 #bca364、白底黑字、Noto Sans TC + Noto Serif TC
 */

/* ===========================
   基礎設定
   =========================== */
body {
    font-family: 'Noto Sans TC', sans-serif;
    background-color: #fff;
    color: #333;
    overflow-x: hidden;
}

.serif {
    font-family: 'Noto Serif TC', serif;
}

/* ===========================
   導覽列
   =========================== */
#main-nav {
    transition: all 0.4s ease-in-out;
    background: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0));
}

#main-nav #logo img {
    filter: brightness(0) invert(1);
    transition: filter 0.4s ease-in-out;
}

#main-nav.scrolled {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    color: #333;
}

#main-nav.scrolled #logo img {
    filter: none;
}

#main-nav.scrolled .nav-link { color: #4b5563; }
#main-nav.scrolled .nav-link:hover { color: #bca364; }
#main-nav.scrolled .icon-btn { color: #4b5563; }
#main-nav.scrolled #mobile-menu-btn { color: #333; }

/* 導覽列固定時，頁面不需要從 Hero 開始的場合 */
.nav-solid #main-nav {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    color: #333;
}

.nav-solid #main-nav #logo img {
    filter: none;
}

.nav-solid #main-nav .nav-link { color: #4b5563; }
.nav-solid #main-nav .nav-link:hover { color: #bca364; }
.nav-solid #main-nav .icon-btn { color: #4b5563; }
.nav-solid #main-nav #mobile-menu-btn { color: #333; }

/* ===========================
   金色圓標
   =========================== */
.gold-badge {
    background-color: #bca364;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #000;
    font-family: 'Noto Serif TC', serif;
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    line-height: 1.2;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 20;
}

.section-badge {
    position: absolute;
    top: -30px;
    left: 0px;
}

@media (min-width: 1024px) {
    .section-badge {
        top: -40px;
        left: -20px;
    }
}

/* ===========================
   按鈕
   =========================== */
.btn-gold-outline {
    display: inline-block;
    border: 1px solid #bca364;
    color: #000;
    padding: 8px 40px;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
}

@media (min-width: 768px) {
    .btn-gold-outline {
        width: auto;
    }
}

.btn-gold-outline:hover {
    background-color: #bca364;
    color: #000;
}

/* 金色實心按鈕 */
.btn-gold {
    display: inline-block;
    background-color: #bca364;
    color: #000;
    padding: 10px 32px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.btn-gold:hover {
    background-color: #a08b50;
}

/* ===========================
   Hero 輪播
   =========================== */
.carousel-container {
    display: flex;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-gradient {
    background: linear-gradient(to bottom, rgba(0,0,0,0) 40%, rgba(0,0,0,0.8) 100%);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.4);
    transition: all 0.3s ease;
    cursor: pointer;
}

.dot.active {
    background-color: #fff;
    transform: scale(1.3);
}

/* ===========================
   策展單元縮圖導航
   =========================== */
.thumb-active {
    border: 2px solid #bca364;
}

/* ===========================
   影音區
   =========================== */
.video-list-scroll::-webkit-scrollbar {
    width: 6px;
}

.video-list-scroll::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.video-list-scroll::-webkit-scrollbar-thumb {
    background: #bca364;
    border-radius: 3px;
}

.video-list-scroll::-webkit-scrollbar-thumb:hover {
    background: #a08b50;
}

.video-list-scroll {
    scrollbar-width: thin;
    scrollbar-color: #bca364 #f1f1f1;
}

/* ===========================
   手機版選單
   =========================== */
#mobile-menu {
    transition: transform 0.3s ease-in-out;
    transform: translateX(100%);
}

#mobile-menu.open {
    transform: translateX(0);
}

/* ===========================
   文字切換動畫
   =========================== */
.fade-content {
    transition: opacity 0.3s ease;
}

/* ===========================
   文章卡片共用
   =========================== */
.article-card {
    transition: transform 0.3s ease;
}

.article-card:hover {
    transform: translateY(-2px);
}

.article-card .card-img {
    transition: transform 0.7s ease, opacity 0.3s ease;
}

.article-card:hover .card-img {
    transform: scale(1.05);
    opacity: 0.9;
}

.article-card .card-title {
    transition: color 0.3s ease;
}

.article-card:hover .card-title {
    color: #bca364;
}

/* ===========================
   金色標籤
   =========================== */
.tag-gold {
    display: inline-block;
    background-color: #bca364;
    color: #000;
    font-size: 0.75rem;
    padding: 2px 10px;
    letter-spacing: 0.05em;
}

/* ===========================
   分頁導航
   =========================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-size: 0.875rem;
    border: 1px solid #e5e7eb;
    color: #333;
    text-decoration: none;
    transition: all 0.2s ease;
}

.pagination a:hover {
    border-color: #bca364;
    color: #bca364;
}

.pagination .active {
    background-color: #bca364;
    border-color: #bca364;
    color: #000;
    font-weight: 600;
}

.pagination .disabled {
    color: #d1d5db;
    pointer-events: none;
}

/* ===========================
   文章詳情頁
   =========================== */
.article-body {
    font-size: 1.0625rem;
    line-height: 1.9;
    color: #444;
}

.article-body h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #222;
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #bca364;
}

.article-body h3 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: #333;
    margin: 1.5rem 0 0.75rem;
}

.article-body p {
    margin-bottom: 1.25rem;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.article-body blockquote {
    border-left: 4px solid #bca364;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background-color: #faf9f6;
    color: #555;
    font-style: italic;
}

.article-body img {
    max-width: 100%;
    height: auto;
    margin: 1.5rem 0;
    border-radius: 4px;
}

/* ===========================
   搜尋框
   =========================== */
.search-input {
    border: 2px solid #e5e7eb;
    padding: 12px 20px;
    font-size: 1rem;
    width: 100%;
    transition: border-color 0.3s ease;
    outline: none;
}

.search-input:focus {
    border-color: #bca364;
}

/* ===========================
   關鍵字標籤
   =========================== */
.keyword-tag {
    display: inline-block;
    border: 1px solid #d1d5db;
    color: #555;
    font-size: 0.8125rem;
    padding: 4px 14px;
    transition: all 0.2s ease;
    text-decoration: none;
}

.keyword-tag:hover {
    border-color: #bca364;
    color: #bca364;
}

/* ===========================
   空狀態
   =========================== */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #9ca3af;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    opacity: 0.4;
}