/* 全局樣式 */
:root {
    --main-blue: #003366;
    --accent-gold: #D4AF37;
    --light-bg: #F9F9F9;
    --text-dark: #333333;
    --text-light: #ffffff;
    --alert-red: #E74C3C;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft JhengHei", "Noto Sans TC", sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
}

.no-scroll {
    overflow: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: inherit;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--main-blue);
    color: var(--text-light);
    border: 2px solid var(--main-blue);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--main-blue);
}

.btn-accent {
    background-color: var(--accent-gold);
    color: var(--text-dark);
    border: 2px solid var(--accent-gold);
}

.btn-accent:hover {
    background-color: transparent;
    color: var(--accent-gold);
}

/* 頂部導航欄 */
header {
    background-color: var(--main-blue);
    color: var(--text-light);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    margin-right: 10px;
}

.logo-text h1 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.logo-text p {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* 桌面導航 */
nav.desktop-menu ul {
    display: flex;
    list-style: none;
}

nav.desktop-menu ul li {
    margin-left: 25px;
    position: relative;
}

nav.desktop-menu ul li a {
    font-weight: 500;
    padding: 5px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

nav.desktop-menu ul li a:hover,
nav.desktop-menu ul li a.active {
    border-bottom: 2px solid var(--accent-gold);
    color: var(--accent-gold);
}

/* 移動菜單按鈕 */
.mobile-menu-btn {
    display: none; /* Hidden by default, shown on smaller screens */
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
    z-index: 1001; /* Ensure it's above other content when active */
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    color: var(--accent-gold);
}

/* 移動端導航菜單 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%; /* Hidden off-screen by default */
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--main-blue);
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 80px 20px 20px; /* Adjust padding to clear header */
    box-shadow: 2px 0 10px rgba(0,0,0,0.2);
}

.mobile-menu.active {
    left: 0; /* Slide in when active */
}

.mobile-menu ul {
    list-style: none;
    padding: 0; /* Ensure no default list padding */
    margin: 0; /* Ensure no default list margin */
}

.mobile-menu li {
    margin-bottom: 20px;
}

.mobile-menu a {
    color: var(--text-light);
    font-size: 1.1rem;
    display: block;
    padding: 10px;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
}

.mobile-menu a:hover,
.mobile-menu a.active {
    border-left: 3px solid var(--accent-gold);
    padding-left: 15px;
    color: var(--accent-gold);
}

/* 遮罩層 */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 999; /* Below mobile menu, above content */
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}


/* 輪播橫幅 */
.banner {
    height: 500px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    position: relative;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
}

.banner-content {
    position: relative;
    z-index: 1;
    color: var(--text-light);
    max-width: 600px;
}

.banner-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.banner-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* 快捷入口 */
.quick-links {
    padding: 50px 0;
    background-color: var(--text-light);
}

.quick-links-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.quick-link {
    text-align: center;
    padding: 30px 20px;
    border-radius: 8px;
    background-color: var(--light-bg);
    transition: all 0.3s ease;
}

.quick-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.quick-link i {
    font-size: 2.5rem;
    color: var(--main-blue);
    margin-bottom: 15px;
}

.quick-link h3 {
    margin-bottom: 10px;
    color: var(--main-blue);
}

/* 本週講道 */
.sermon {
    padding: 50px 0;
    background-color: var(--light-bg);
}

.sermon-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
}

.sermon-video {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 比例 */
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.sermon-video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.sermon-content h2 {
    color: var(--main-blue);
    margin-bottom: 20px;
    font-size: 2rem;
}

.sermon-meta {
    display: flex;
    margin-bottom: 15px;
}

.sermon-meta div {
    margin-right: 20px;
}

.sermon-meta i {
    color: var(--accent-gold);
    margin-right: 5px;
}

/* 近期活動 */
.events {
    padding: 50px 0;
    background-color: var(--text-light);
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    color: var(--main-blue);
    font-size: 2rem;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--accent-gold);
}

.events-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.event-card {
    background-color: var(--light-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.event-type {
    background-color: var(--accent-gold);
    color: var(--text-dark);
    padding: 8px 15px;
    font-weight: bold;
    text-align: center;
}

.event-content {
    padding: 20px;
}

.event-date {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: var(--alert-red);
}

.event-date i {
    margin-right: 8px;
}

.event-title {
    color: var(--main-blue);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.event-desc {
    margin-bottom: 20px;
    color: var(--text-dark);
    font-size: 0.9rem;
}

/* 頁腳 */
footer {
    background-color: var(--main-blue);
    color: var(--text-light);
    padding: 50px 0 20px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h3 {
    color: var(--accent-gold);
    margin-bottom: 20px;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-gold);
}

.footer-contact p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.footer-contact i {
    margin-right: 10px;
    color: var(--accent-gold);
    width: 20px;
    text-align: center;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: var(--accent-gold);
    padding-left: 5px;
}

.social-links {
    display: flex;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--accent-gold);
    color: var(--text-dark);
}

.copyright {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 響應式設計 */
@media (max-width: 992px) {
    .quick-links-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .events-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-col:last-child {
        grid-column: span 2;
        margin-top: 30px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block; ！important /* Show hamburger icon */
    }
    
    nav.desktop-menu {
        display: none; /* Hide desktop menu */
    }
    
    .sermon-container {
        grid-template-columns: 1fr;
    }
    
    .banner-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .quick-links-container {
        grid-template-columns: 1fr;
    }
    
    .events-container {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-col:last-child {
        grid-column: span 1;
    }
    
    .banner {
        height: 400px;
    }
    
    .banner-content h2 {
        font-size: 1.8rem;
    }
}