/* ==========================================================================
   RESPONSIVE.CSS — MEKONG INNOTECH EXPO 2026
   Tối ưu hiển thị cho Desktop (>= 992px, chuẩn 1024px - 1440px), Tablet & Mobile
   ========================================================================== */

@media (max-width: 1440px) {
  .hero-banner-v2 {
    min-height: 540px;
    max-height: 540px;
    background-position: center 27%;
  }
}

/* 1. MEDIUM DESKTOP (992px – 1199.98px)
   -------------------------------------------------------------------------- */
@media (max-width: 1199.98px) and (min-width: 992px) {
  .top-utility-bar {
    font-size: 11.5px;
  }

  .top-bar-inner {
    gap: 10px;
  }

  .top-utility-bar .org-sep {
    margin: 0 6px;
  }

  .top-utility-bar .contact-social-group {
    gap: 10px;
  }

  .top-utility-bar .social-icons {
    gap: 6px;
  }

  .main-navbar .navbar-nav {
    gap: 12px;
  }

  .main-navbar .nav-link {
    font-size: 13.5px;
  }

  .sec-head-title {
    font-size: 16px;
  }

  .sec-link-more {
    font-size: 13px;
  }

  .map-banner-card {
    min-height: 400px;
  }

  .map-banner-title {
    font-size: 26px;
  }

  .pr-download-grid {
    grid-template-columns: 1.75fr 1fr;
    gap: 16px;
  }

  .quick-dl-title {
    font-size: 18px;
  }

  .qdl-booklet-bg {
    width: 45%;
  }

  .org-core-grid {
    max-width: 100%;
  }

  .org-core-col {
    padding: 4px 10px;
  }

  .org-core-name {
    font-size: 13px;
  }

  .footer-main-row {
    gap: 12px;
  }

  .footer-brand-logo img {
    height: 44px;
  }

  .footer-contact-list {
    gap: 14px;
    flex-wrap: nowrap;
  }

  .footer-contact-item {
    font-size: 12.5px;
  }

  .btn-footer-gold {
    font-size: 13.5px;
    padding: 10px 18px;
  }
}

/* 2. TABLET SCREENS (<= 991.98px)
   -------------------------------------------------------------------------- */
@media (max-width: 991.98px) {
  .site-container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .top-utility-bar .org-info {
    font-size: 12px;
  }

  .main-navbar {
    height: 62px;
    position: sticky;
    top: 0;
  }

  .main-navbar .navbar {
    height: 62px;
    position: static;
    flex-wrap: nowrap;
  }

  .main-navbar .navbar-brand {
    height: 62px;
    margin-right: 0;
    flex-shrink: 0;
  }

  .main-navbar .navbar-brand img {
    height: 38px;
  }

  .main-navbar .navbar-toggler {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .main-navbar .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    padding: 12px 20px 18px;
    border-top: 1px solid #EEF2EC;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.14);
    z-index: 1030;
    max-height: calc(100vh - 62px);
    overflow-y: auto;
  }

  .main-navbar .navbar-nav {
    gap: 4px;
  }

  .main-navbar .nav-link {
    padding: 10px 4px !important;
  }

  .main-navbar .nav-link::after {
    display: none;
  }

  .nav-right-group {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #F1F5F9;
  }

  .hero-content {
    padding-left: 32px;
  }

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

  .map-banner-card {
    min-height: 360px;
  }

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

  .gallery-strip-container {
    grid-auto-columns: calc((100% - 28px) / 3);
  }

  .video-grid-3col {
    grid-template-columns: repeat(2, 1fr);
  }

  .pr-download-grid {
    grid-template-columns: 1fr;
  }

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

  .organizers-v2-section {
    background-size: cover;
  }

  .org-core-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    max-width: 100%;
  }

  .org-core-col:nth-child(odd) {
    border-left: 0;
  }

  .footer-v2 {
    background-size: cover;
  }

  .footer-main-row {
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
  }
}

/* 3. MOBILE SCREENS (<= 767.98px)
   -------------------------------------------------------------------------- */
@media (max-width: 767.98px) {
  body {
    font-size: 14px;
  }

  .site-container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .top-utility-bar {
    height: 38px;
    font-size: 11px;
  }

  .top-utility-bar .org-info {
    display: none;
  }

  .top-utility-bar .contact-social-group {
    width: 100%;
    justify-content: space-between;
    gap: 6px;
  }

  .top-utility-bar .social-icons {
    gap: 5px;
  }

  .top-utility-bar .social-icon-link {
    width: 21px;
    height: 21px;
    font-size: 11px;
  }

  .hero-banner-v2 {
    min-height: 410px;
    max-height: none;
    padding: 32px 0 72px;
    background-size: cover;
    background-position: 65% center;
  }

  .hero-banner-v2::before {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.56) 100%);
  }

  .hero-content {
    padding-left: 8px;
    padding-right: 8px;
  }

  .hero-arrow {
    display: none;
  }

  .main-body-sheet {
    margin-top: -28px;
    border-radius: 20px 20px 0 0;
  }

  .stats-intro-v2-section {
    margin-top: -10px;
  }

  .intro-col-card {
    flex-direction: column;
    padding: 18px;
  }

  .intro-img-side {
    margin: 10px 0 0;
    justify-content: center;
  }

  .map-banner-card {
    min-height: 300px;
    padding: 0;
  }

  .map-banner-bg-img {
    width: 100%;
  }

  .map-banner-curve-svg {
    display: none;
  }

  .map-banner-left-content {
    width: 100%;
    padding: 26px 20px;
    background: rgba(24, 77, 43, 0.86);
  }

  .map-banner-title {
    font-size: 24px;
  }

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

  .news-main-thumb {
    height: 195px;
  }

  .gallery-strip-container {
    grid-auto-columns: 200px;
  }

  .gallery-thumb-card {
    height: 136px;
  }

  .video-grid-3col {
    grid-template-columns: 1fr;
  }

  .pr-download-grid {
    grid-template-columns: 1fr;
  }

  .need-know-grid {
    grid-template-columns: 1fr;
  }

  .faq-accordion .accordion-button {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-accordion .accordion-body {
    padding: 2px 16px 16px 56px;
    font-size: 13.5px;
  }

  .org-core-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .org-core-col {
    border-left: 0;
    padding: 6px 0;
  }

  .footer-contact-list {
    flex-direction: column;
    gap: 10px;
  }

  .lightbox-stage {
    height: clamp(250px, 44vh, 340px);
    padding: 12px 48px;
  }

  .lightbox-zoom-label {
    display: none;
  }

  .lightbox-nav-btn {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .lightbox-nav-btn.prev {
    left: 8px;
  }

  .lightbox-nav-btn.next {
    right: 8px;
  }

  .expo-map-root {
    height: 560px;
    border-radius: 14px;
    margin: 12px 0 18px;
  }

  .map-page-topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}