/* components.css - part of style.css split */

   Responsive Design
   ================================ */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-10);
    }

    .feature-section--reverse {
        direction: ltr;
    }

    .footer__main {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__brand {
        grid-column: span 3;
    }
}

@media (max-width: 768px) {
    .nav__list {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 500px;
    }

    .hero::before {
        width: 100%;
        clip-path: polygon(0 60%, 100% 40%, 100% 100%, 0 100%);
        opacity: 0.3;
    }

    .hero__title {
        font-size: var(--text-4xl);
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .grid-6 {
        grid-template-columns: 1fr;
    }

    .featured-news {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__main {
        grid-template-columns: 1fr 1fr;
    }

    .footer__brand {
        grid-column: span 2;
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }

    .footer__legal {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-4);
    }

    .stats {
        grid-template-columns: 1fr;
    }

    .footer__main {
        grid-template-columns: 1fr;
    }

    .footer__brand {
        grid-column: span 1;
    }
}

/* ================================
   Animations
   ================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

/* Staggered animations */
.stagger>*:nth-child(1) {
    animation-delay: 0.1s;
}

.stagger>*:nth-child(2) {
    animation-delay: 0.2s;
}

.stagger>*:nth-child(3) {
    animation-delay: 0.3s;
}

.stagger>*:nth-child(4) {
    animation-delay: 0.4s;
}

/* ================================
   Mobile Navigation Overlay
   ================================ */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-white);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-6);
    padding-top: calc(var(--spacing-6) + env(safe-area-inset-top));
    padding-bottom: calc(var(--spacing-6) + env(safe-area-inset-bottom));
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overscroll-behavior: contain;
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-8);
}

.mobile-nav__close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.mobile-nav__close:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
.mobile-nav__link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.mobile-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.mobile-nav__link {
    font-size: var(--text-xl);
    font-weight: 600;
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

/* ================================
   Search Modal
   ================================ */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    overscroll-behavior: contain;
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-modal__content {
    width: 100%;
    max-width: 700px;
    padding: 0 var(--spacing-6);
}

.search-modal__input {
    width: 100%;
    padding: var(--spacing-5);
    font-size: var(--text-2xl);
    border: none;
    border-bottom: 3px solid var(--color-primary);
    background-color: transparent;
    color: var(--color-white);
    outline: none;
}
.search-modal__input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.search-modal__input::placeholder {
    color: var(--color-gray-500);
}

/* ================================
   Page Header
   ================================ */
.page-header {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-gray-900) 100%);
    padding: var(--spacing-20) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: var(--color-primary);
    opacity: 0.1;
    border-radius: 50%;
}

.page-header__title {
    color: var(--color-white);
    font-size: var(--text-5xl);
    margin-bottom: var(--spacing-4);
    position: relative;
    z-index: 1;
}

.page-header__breadcrumb {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
    color: var(--color-gray-400);
    font-size: var(--text-sm);
    position: relative;
    z-index: 1;
}

.page-header__breadcrumb a:hover {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .page-header__title {
        font-size: var(--text-3xl);
    }
    .page-header__breadcrumb {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .page-header__title {
        font-size: var(--text-2xl);
    }
}

/* ================================
   Utility Classes
   ================================ */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-8 {
    margin-bottom: var(--spacing-8);
}

.mt-0 {
    margin-top: 0;
}

.mt-4 {
    margin-top: var(--spacing-4);
}

.mt-8 {
    margin-top: var(--spacing-8);
}

.py-8 {
    padding-top: var(--spacing-8);
    padding-bottom: var(--spacing-8);
}

.py-16 {
    padding-top: var(--spacing-16);
    padding-bottom: var(--spacing-16);
}

.hidden {
    display: none;
}

.block {
    display: block;
}

.flex {
    display: flex;
}

.inline-flex {
    display: inline-flex;
}

.items-center {
    align-items: center;
}

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

.justify-between {
    justify-content: space-between;
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

.gap-8 {
    gap: var(--spacing-8);
}

/* ================================
   Modal Styles
   ================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal__container {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: modalSlideIn 0.3s ease;
}

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

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

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background-color: var(--color-gray-100);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition);
}

.modal__close:hover {
    background-color: var(--color-gray-200);
}

.modal__content {
    padding: var(--spacing-8);
    max-height: 90vh;
    overflow-y: auto;
}

.modal__loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-16);
    color: var(--color-gray-600);
}

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--spacing-4);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ================================
   News Detail (Modal Content)
   ================================ */
.news-detail__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
}

.news-detail__meta {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.news-detail__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--spacing-6);
    line-height: 1.3;
}

.news-detail__content {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--color-gray-700);
}

.news-detail__gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.news-detail__gallery-title {
    grid-column: 1 / -1;
    font-size: var(--text-xl);
    margin: 0 0 var(--spacing-2);
}

.news-detail__gallery-item {
    margin: 0;
}

.news-detail__gallery-caption {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-top: var(--spacing-2);
    text-align: center;
}

.news-detail__gallery img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--transition);
}

.news-detail__gallery img:hover {
    transform: scale(1.05);
}

/* ================================
   AJAX News Cards
   ================================ */
.news-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-card__image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background-color: var(--color-gray-200);
}

.news-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-card__image img {
    transform: scale(1.05);
}

.news-card__content {
    padding: var(--spacing-5);
}

.news-card__date {
    display: block;
    font-size: var(--text-xs);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-2);
}

.news-card__title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card__excerpt {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card__link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
}

.news-card__link:hover {
    text-decoration: underline;
}

/* Large news card */
.news-card--large .news-card__image {
    height: 300px;
}

.news-card--large .news-card__title {
    font-size: var(--text-2xl);
}

/* ================================
   Skeleton Loader
   ================================ */
.skeleton {
    background: linear-gradient(90deg,
            var(--color-gray-200) 25%,
            var(--color-gray-100) 50%,
            var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton--image {
    height: 200px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.skeleton--text {
    height: 1rem;
    margin-bottom: var(--spacing-2);
}

.news-card--skeleton {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.news-card--skeleton .news-card__content {
    padding: var(--spacing-5);
}

/* ================================
   News Grid Layout
   ================================ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
}

.news-grid .news-card:first-child {
    grid-column: span 2;
    grid-row: span 2;
}

.news-grid .news-card:first-child .news-card__image {
    height: 100%;
    min-height: 300px;
}

.load-more-container {
    text-align: center;
    margin-top: var(--spacing-10);
}

.all-loaded {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
}

/* ================================
   Search Results
   ================================ */
.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
}

.search-results li a {
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-gray-100);
    transition: background var(--transition);
}

.search-results li a:hover {
    background-color: var(--color-gray-50);
}

.search-results li img {
    width: 60px;
    height: 45px;
    object-fit: cover;
    border-radius: var(--radius);
}

.search-results strong {
    display: block;
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-1);
}

.search-results p {
    font-size: var(--text-xs);
    color: var(--color-gray-600);
    margin: 0;
}

.no-results {
    padding: var(--spacing-8);
    text-align: center;
    color: var(--color-gray-500);
}

.error {
    padding: var(--spacing-8);
    text-align: center;
    color: var(--color-error);
}

/* ================================
   Loading State
   ================================ */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ================================
   Placeholder Image
   ================================ */
.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-200), var(--color-gray-100));
}

.placeholder-image svg {
    width: 48px;
    height: 48px;
    fill: var(--color-gray-400);
}

/* Responsive for AJAX components */
@media (max-width: 992px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .news-grid .news-card:first-child {
        grid-column: span 2;
        grid-row: span 1;
    }

    .news-detail__gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-grid .news-card:first-child {
        grid-column: span 1;
    }

    .modal__container {
        width: 95%;
        max-height: 95vh;
    }

    .news-detail__title {
        font-size: var(--text-2xl);
    }
}

@media (max-width: 480px) {
    .news-detail__gallery {
        grid-template-columns: 1fr;
    }
}

/* ================================
   Service Grid (Database & Journals)
   ================================ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
    padding-bottom: 0.5rem;
}

.service-card {
    background: #fff;
    border: 1px solid var(--color-gray-200);
    border-radius: 10px;
    padding: 0.875rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border-color: var(--primary);
}

.service-card__icon {
    width: 40px;
    height: 40px;
    background: var(--color-gray-100);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    color: var(--primary);
    transition: all 0.3s ease;
}

.service-card:hover .service-card__icon {
    background: var(--primary);
    color: var(--color-white);
}

.service-card__icon svg {
    width: 20px;
    height: 20px;
}

.service-card__title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.service-card__desc {
    font-size: 0.75rem;
    color: var(--color-gray-500);
}

/* Journal specific style */
.service-card--journal .service-card__icon {
    background: rgba(45, 125, 70, 0.15);
    color: var(--secondary);
}

.service-card--journal:hover .service-card__icon {
    background: var(--secondary);
    color: var(--color-white);
}

.service-card--journal:hover {
    border-color: var(--secondary);
}

@media (max-width: 640px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .service-card {
        padding: 1rem;
    }

    .service-card__icon {
        width: 40px;
        height: 40px;
        margin-bottom: 0.75rem;
    }

    .service-card__title {
        font-size: 0.9rem;
    }
}

/* ================================
   Layout: Nav Dropdown (จาก main_layout)
   ================================ */
.nav__item--has-dropdown {
    position: relative;
}

.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    min-width: 280px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease;
    z-index: 100;
}

.nav__item--has-dropdown:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav__dropdown-link {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.2s;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--color-gray-100);
}

.nav__dropdown-link:last-child {
    border-bottom: none;
}

.nav__dropdown-link:hover {
    background: var(--color-gray-50);
    color: var(--secondary);
    padding-left: 1.75rem;
}

/* Hero Science (ภาพพื้นหลังกำหนดใน layout ผ่าน --hero-bg-url) */
.hero--science {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.hero--science::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--hero-bg-url, url('../images/hero_background.png')) center/cover;
    opacity: 0.15;
}