/* Detail Page CSS: สำหรับ news-detail และ activity-detail */
:root {
    --primary: #1e3c72;
    --secondary: #2a5298;
    --accent: #ffd700;
    --bg: #f6f8fb;
    --white: #fff;
    --radius: 1.2rem;
    --shadow: 0 4px 24px rgba(30,60,114,0.10);
    --transition: 0.3s cubic-bezier(.4,0,.2,1);
}

#news-detail, #activity-detail {
    background: linear-gradient(120deg, var(--bg) 80%, #fffbe7 100%);
    min-height: 100vh;
    padding: 2.5rem 0 2rem 0;
}
.detail-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2.5rem 2rem;
    animation: fadeInUp 0.7s cubic-bezier(.4,0,.2,1);
    position: relative;
}
.detail-title {
    text-align: center;
    font-size: 2.1rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 1.2rem;
    background: linear-gradient(90deg, #e0eafc 60%, #ffd70022 100%);
    border-radius: 1rem;
    padding: 1.2rem 0.5rem;
    box-shadow: 0 2px 8px #ffd70022;
}
.detail-date {
    display: block;
    text-align: center;
    color: #ffb300;
    font-size: 1.1rem;
    margin: 1rem 0 1.5rem 0;
    background: #fffbe7;
    border-radius: 0.7rem;
    padding: 0.5rem 0;
}
.detail-text {
    font-size: 1.13rem;
    line-height: 1.8;
    color: #222;
    background: linear-gradient(90deg, #f6f8fb 80%, #fffbe7 100%);
    padding: 1.5rem 1rem;
    border-radius: 1rem;
    margin: 1.5rem 0;
}
.back-button {
    display: inline-block;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: var(--white);
    padding: 0.6rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    box-shadow: 0 2px 8px #ffd70022;
    margin-bottom: 1.2rem;
    transition: background var(--transition), color var(--transition), transform var(--transition);
}
.back-button:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
}
.copy-link {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 2px 8px #ffd70022;
    transition: background var(--transition), color var(--transition);
}
.copy-link.copied {
    background: var(--primary);
    color: var(--accent);
}
.source-link {
    display: inline-block;
    background: var(--accent);
    color: var(--primary);
    padding: 0.5rem 1.2rem;
    border-radius: 2rem;
    font-weight: 600;
    box-shadow: 0 2px 8px #ffd70022;
    margin-bottom: 1.2rem;
    transition: background var(--transition), color var(--transition);
}
.source-link:hover {
    background: var(--primary);
    color: var(--accent);
}
/* Slider Styles (เฉพาะ activity-detail) */
.activity-detail-img-slider {
    position: relative;
    max-width: 600px;
    margin: 0 auto 2rem auto;
    overflow: hidden;
    border-radius: 1rem;
    box-shadow: 0 2px 16px #ffd70022;
    background: var(--white);
}
.slider-wrapper {
    display: flex;
    transition: transform 0.6s cubic-bezier(.4,0,.2,1);
    will-change: transform;
    width: 100%;
}
.activity-detail-img-slider img {
    width: 100%;
    max-width: 700px;
    height: 260px;
    object-fit: cover;
    border-radius: 1rem;
    flex: 0 0 100%;
    background: linear-gradient(135deg, #e0eafc 0%, #ffd70022 100%);
    display: block;
    cursor: pointer;
    transition: box-shadow 0.3s, transform 0.3s;
}
.activity-detail-img-slider img:hover {
    box-shadow: 0 8px 32px #ffd70055;
    transform: scale(1.025);
}
.slider-nav {
    --nav-size: 44px;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.85);
    border: none;
    border-radius: 50%;
    width: var(--nav-size);
    height: var(--nav-size);
    font-size: 1.5rem;
    color: var(--primary);
    box-shadow: 0 2px 8px #ffd70022;
    cursor: pointer;
    z-index: 2;
    transition: background var(--transition), color var(--transition);
}
.slider-nav.prev { left: 12px; }
.slider-nav.next { right: 12px; }
.slider-nav:hover {
    background: var(--accent);
    color: var(--white);
}
.slider-dots {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 2;
}
.slider-dot {
    --dot-size: 12px;
    width: var(--dot-size);
    height: var(--dot-size);
    border-radius: 50%;
    background: #e0eafc;
    border: 2px solid var(--accent);
    cursor: pointer;
    opacity: 0.7;
    transition: background var(--transition), opacity var(--transition);
}
.slider-dot.active {
    background: var(--accent);
    opacity: 1;
}
.detail-image-item {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
}
.detail-image-item img {
    width: 100%;
    max-width: 700px;
    height: 260px;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 2px 16px #ffd70022;
    background: var(--white);
    cursor: pointer;
    transition: box-shadow 0.3s, transform 0.3s;
}
.detail-image-item img:hover {
    box-shadow: 0 8px 32px #ffd70055;
    transform: scale(1.025);
}
.activity-detail-img-slider .slider-wrapper img,
.detail-image-item img {
    width: 100%;
    max-width: 700px;
    height: 340px;
    aspect-ratio: 700/340;
    object-fit: cover;
    object-position: center;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(30,60,114,0.08);
    background: #f8f8f8;
    display: block;
    margin: 0 auto;
}
.related-img {
    height: 150px;
    overflow: hidden;
    border-radius: 0.7rem;
    margin-bottom: 0.7rem;
}
.related-img img {
    width: 100%;
    height: 160px;
    aspect-ratio: 7/3.2;
    object-fit: cover;
    object-position: center;
    border-radius: 8px;
    background: #f8f8f8;
    display: block;
}
/* Lightbox */
.lightbox {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.lightbox.active { display: flex; }
.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 1rem;
    background: var(--white);
}
.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
    transition: background var(--transition), color var(--transition);
}
.lightbox-close:hover {
    background: var(--primary);
    color: var(--accent);
}
.social-share {
    display: flex;
    gap: 1rem;
    margin: 2rem 0 1rem 0;
    justify-content: center;
}
.share-button {
    background: var(--white);
    color: var(--primary);
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    box-shadow: 0 2px 8px #ffd70022;
    transition: background var(--transition), color var(--transition), transform var(--transition);
}
.share-button:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}
.post-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e0eafc;
    gap: 1rem;
}
.nav-post {
    flex: 0 0 48%;
    background: var(--bg);
    padding: 1rem;
    border-radius: var(--radius);
    transition: box-shadow var(--transition), transform var(--transition);
    box-shadow: 0 2px 8px #ffd70022;
}
.nav-post:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px #ffd70033;
}
.related-posts {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e0eafc;
}
.related-posts h3 {
    color: var(--primary);
    margin-bottom: 1.2rem;
    text-align: center;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.2rem;
}
.related-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px #ffd70022;
    transition: box-shadow var(--transition), transform var(--transition);
    padding: 1rem;
    display: block;
    text-decoration: none;
}
.related-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px #ffd70033;
}
.related-img {
    height: 150px;
    overflow: hidden;
    border-radius: 0.7rem;
    margin-bottom: 0.7rem;
}
.related-img img {
    width: 100%;
    height: 160px;
    aspect-ratio: 7/3.2;
    object-fit: cover;
    object-position: center;
    border-radius: 8px;
    background: #f8f8f8;
    display: block;
}
.related-card:hover .related-img img {
    transform: scale(1.1);
}
.related-content h4 {
    color: var(--secondary);
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}
.related-date {
    color: var(--primary);
    font-size: 0.98rem;
}
@media (max-width:900px) {
    .containerbar {
        padding: 0 1rem;
    }
    .nav-links {
        gap: 1rem;
    }
    .activity-detail-img-slider img,
    .detail-image-item img {
        height: 140px;
        max-width: 98vw;
    }
}
@media (max-width:768px) {
    .menu-toggle {
        display: flex;
    }
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 80vw;
        max-width: 320px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        flex-direction: column;
        border-radius: 1.5rem 0 0 1.5rem;
        box-shadow: 0 8px 32px rgba(30, 60, 114, 0.13);
        padding-top: 4.5rem;
        gap: 1.5rem;
        opacity: 0;
        pointer-events: none;
        transform: translateX(100%);
        transition: opacity var(--transition), transform var(--transition);
        z-index: 100;
    }
    .nav-links.active {
        opacity: 1;
        pointer-events: auto;
        transform: translateX(0);
    }
}
@media (min-width: 768px) and (max-width: 1024px) {
    .containerbar {
        justify-content: center !important;
    }
    .nav-links {
        justify-content: center !important;
        width: 100% !important;
        text-align: center !important;
    }
}
@media (max-width:600px) {
    .containerbar {
        flex-direction: column;
        gap: 0.5rem;
    }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}