/* 
* responsive.css - สไตล์ชีทสำหรับการแสดงผลแบบ Responsive ของเว็บไซต์โรงเรียนเทพปัญญา
* เวอร์ชัน: 1.0
*/

/* ====================== Large Desktop ====================== */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}

/* ====================== Desktop ====================== */
@media (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    .hero-slider {
        height: 400px;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .gallery-item {
        flex: 0 0 calc(33.333% - 15px);
    }
    
    .link-item {
        flex: 0 0 calc(25% - 15px);
        max-width: calc(25% - 15px);
    }
}

/* ====================== Tablet ====================== */
@media (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    .logo-section .container {
        flex-direction: column;
        gap: 20px;
    }
    
    .search-container {
        width: 100%;
    }
    
    .search-form {
        width: 100%;
    }
    
    .search-form input {
        width: 100%;
    }
    
    .mega-menu-container .container {
        padding: 0;
    }
    
    .vision-mission-container,
    .facilities-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .stat-icon {
        font-size: 32px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .stat-text {
        font-size: 16px;
    }
    
    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .quick-link-icons {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item {
        flex: 0 0 calc(50% - 15px);
    }
    
    .link-item {
        flex: 0 0 calc(33.333% - 15px);
        max-width: calc(33.333% - 15px);
    }
    
    .footer-widgets {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .footer-bottom-links {
        margin-top: 10px;
    }
    
    .footer-bottom-links a {
        margin: 0 10px;
    }
    
    .popup-content {
        width: 90%;
    }
    
    .popup-buttons {
        flex-direction: column;
        gap: 10px;
    }
}

/* ====================== Mobile Landscape ====================== */
@media (max-width: 767px) {
    .container {
        max-width: 540px;
    }
    
    .top-bar .container {
        flex-wrap: wrap;
    }
    
    .contact-info {
        width: 100%;
        margin-bottom: 10px;
        text-align: center;
    }
    
    .social-icons {
        flex-grow: 1;
    }
    
    .accessibility {
        justify-content: flex-end;
    }
    
    .logo-container {
        flex-direction: column;
        text-align: center;
    }
    
    .logo {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .site-title h1 {
        font-size: 24px;
    }
    
    .site-title h2 {
        font-size: 14px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .mega-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--primary-color);
        flex-direction: column;
        z-index: 1000;
    }
    
    .mega-menu.active {
        display: flex;
    }
    
    .mega-menu > li {
        width: 100%;
    }
    
    .mega-menu > li > a {
        padding: 15px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .mega-content {
        position: static;
        width: 100%;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        flex-direction: column;
    }
    
    .mega-menu > li.active .mega-content {
        display: block;
    }
    
    .mega-col {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #f0f0f0;
        padding: 15px;
    }
    
    .dropdown {
        position: static;
        width: 100%;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
    }
    
    .mega-menu > li.active .dropdown {
        display: block;
    }
    
    .dropdown li a {
        padding-left: 40px;
    }
    
    .slide-caption {
        left: 20px;
        right: 20px;
        bottom: 20px;
        max-width: none;
    }
    
    .slide-caption h2 {
        font-size: 24px;
    }
    
    .slide-caption p {
        font-size: 14px;
    }
    
    .grid-layout.two-columns {
        grid-template-columns: 1fr;
    }
    
    .quick-link-icons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .vision-section, 
    .stats-section, 
    .programs-section, 
    .facilities-section,
    .news-section,
    .gallery-section,
    .faq-section,
    .links-section {
        padding: 40px 0;
    }
    
    .section-header-center h2,
    .section-header h2 {
        font-size: 24px;
    }
    
    .vision-mission-container,
    .stats-container,
    .programs-grid,
    .facilities-grid {
        gap: 15px;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .parallax-section {
        height: auto;
        padding: 60px 20px;
    }
    
    .featured-content h2 {
        font-size: 28px;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 0 0 50%;
    }
    
    .gallery-item {
        flex: 0 0 100%;
    }
    
    .link-item {
        flex: 0 0 calc(50% - 15px);
        max-width: calc(50% - 15px);
    }
    
    .footer-widgets {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* ====================== Mobile Portrait ====================== */
@media (max-width: 575px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .top-bar {
        font-size: 12px;
    }
    
    .contact-info span {
        display: block;
        margin-bottom: 5px;
    }
    
    .social-icons a {
        width: 24px;
        height: 24px;
        line-height: 24px;
    }
    
    .logo {
        width: 60px;
    }
    
    .hero-slider {
        height: 350px;
    }
    
    .slide-caption {
        bottom: 10px;
        left: 10px;
        right: 10px;
    }
    
    .thai-frame {
        padding: 20px 15px;
    }
    
    .slide-caption h2 {
        font-size: 20px;
    }
    
    .slide-caption p {
        font-size: 12px;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
    }
    
    .slider-btn.prev {
        left: 10px;
    }
    
    .slider-btn.next {
        right: 10px;
    }
    
    .quick-link-icons {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .quick-link-item {
        padding: 10px;
    }
    
    .quick-link-item i {
        font-size: 20px;
    }
    
    .section-header-center h2,
    .section-header h2 {
        font-size: 22px;
    }
    
    .vision-header h3,
    .mission-header h3 {
        font-size: 20px;
    }
    
    .vision-header i,
    .mission-header i {
        font-size: 30px;
    }
    
    .stat-icon {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .stat-text {
        font-size: 14px;
    }
    
    .facility-image {
        height: 160px;
    }
    
    .featured-content h2 {
        font-size: 24px;
    }
    
    .featured-content p {
        font-size: 14px;
    }
    
    .tabs {
        overflow-x: auto;
        white-space: nowrap;
        flex-wrap: nowrap;
    }
    
    .tab-btn {
        flex: 0 0 auto;
        min-width: 120px;
    }
    
    .news-image {
        height: 160px;
    }
    
    .news-body h3 {
        font-size: 16px;
    }
    
    .link-item {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .faq-question h3 {
        font-size: 15px;
    }
    
    .popup-content {
        width: 95%;
    }
    
    .popup-header h2 {
        font-size: 20px;
    }
    
    .popup-frame h3 {
        font-size: 18px;
    }
}