/* ==========================================================================
   Comprehensive Mobile & Tablet Responsive Stylesheet
   G-TEC Computer Education - Tripunithura Campus
   ========================================================================== */

/* --------------------------------------------------------------------------
   Universal Mobile & Accessibility Foundations
   -------------------------------------------------------------------------- */
html, body {
  overflow-x: hidden !important;
  width: 100% !important;
  max-width: 100vw !important;
  -webkit-text-size-adjust: 100%;
}

body.menu-open {
  overflow: hidden !important;
}

/* Base Form Inputs (Strict 16px to prevent iOS Safari auto-zoom) */
input[type="text"],
input[type="tel"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="search"],
select,
textarea {
  font-size: 16px !important;
}

/* Smooth Tap Targets */
button, a, input, select {
  touch-action: manipulation;
}

/* --------------------------------------------------------------------------
   Desktop & Tablet Baseline (Large Screen Enhancements)
   -------------------------------------------------------------------------- */
@media (min-width: 769px) {
  .mobile-bottom-bar {
    display: none !important;
  }
  .nav-backdrop {
    display: none !important;
  }
  .mobile-toggle {
    display: none !important;
  }
  .navbar-nav {
    position: static !important;
    right: auto !important;
    width: auto !important;
    max-width: none !important;
    height: auto !important;
    background: transparent !important;
    border: none !important;
    flex-direction: row !important;
    padding: 0 !important;
    box-shadow: none !important;
    visibility: visible !important;
    pointer-events: auto !important;
    gap: 28px !important;
  }
  .navbar-nav::before {
    display: none !important;
  }
  .mobile-close-btn {
    display: none !important;
  }
}

/* --------------------------------------------------------------------------
   1. Large Tablets & Small Laptops (max-width: 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-overview-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }

  .hero-lead {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-search-box {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-badges-strip {
    justify-content: center;
  }

  .hero-spotlight-card,
  .hero-event-links-card,
  .hero-gallery-carousel-card {
    max-width: 580px;
    margin: 0 auto 18px;
    text-align: left;
    width: 100%;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-item:nth-child(2)::after {
    display: none;
  }

  .why-us-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .affiliations-grid,
  .affiliation-cards-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
  }

  .awards-cards-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
  }

  .about-story-grid {
    grid-template-columns: 1fr !important;
    gap: 36px !important;
    text-align: center;
  }

  .about-story-grid img {
    max-width: 540px;
    margin: 0 auto;
    display: block;
  }

  .about-vision-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .message-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 35px 25px;
  }

  .message-text-side blockquote::before {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   2. Tablet Portrait & Mobile Devices (max-width: 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  body {
    padding-bottom: 68px !important; /* Space for the bottom sticky app bar */
  }

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

  .section {
    padding: 44px 0;
  }

  .section-header {
    margin-bottom: 24px;
  }

  .section-title {
    font-size: 1.75rem;
    line-height: 1.25;
    margin-bottom: 10px;
  }

  .section-desc {
    font-size: 0.92rem;
    line-height: 1.6;
  }

  /* Page Banners on Subpages */
  .page-banner {
    padding: 42px 0 34px;
  }

  .banner-badge-pill {
    font-size: 0.72rem;
    padding: 5px 14px;
    margin-bottom: 12px;
  }

  .banner-main-title {
    font-size: 1.75rem !important;
    line-height: 1.25 !important;
    letter-spacing: -0.3px;
    margin-bottom: 10px;
  }

  .banner-lead-text {
    font-size: 0.92rem !important;
    line-height: 1.6 !important;
    padding: 0 4px;
  }

  /* Header & Navigation Bar */
  .topbar {
    display: none !important;
  }

  .main-header {
    background: #ffffff !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    z-index: 1050 !important;
  }

  .nav-container {
    padding: 10px 16px;
  }

  .logo-wrapper {
    gap: 10px;
  }

  .logo-img {
    height: 40px;
    width: auto;
  }

  .branch-tag {
    padding-left: 8px;
    border-left-width: 1.5px;
  }

  .branch-tag .branch-name {
    font-size: 0.88rem;
    letter-spacing: -0.2px;
  }

  .branch-tag .branch-sub {
    font-size: 0.62rem;
    letter-spacing: 0.4px;
  }

  .header-cta-group {
    gap: 8px;
  }

  /* Hide "Free Demo Class" in header to eliminate header clutter on phones */
  .header-cta-group .btn-primary {
    display: none !important;
  }

  /* Compact "Enquire Now" button in mobile header */
  .header-cta-group .btn-secondary {
    padding: 7px 13px !important;
    font-size: 0.82rem !important;
    border-radius: 20px;
    gap: 5px;
  }

  .mobile-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 8px;
    background: rgba(0, 139, 208, 0.08);
    color: var(--dark);
    font-size: 1.25rem;
    cursor: pointer;
    border: none;
  }

  /* Slide-Out Navigation Drawer */
  .navbar-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 290px;
    max-width: 82vw;
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(180deg, #0A192F 0%, #0B132B 55%, #102A43 100%);
    border-left: 1px solid rgba(255, 255, 255, 0.12);
    flex-direction: column;
    align-items: stretch;
    padding: 70px 18px 85px;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.65);
    transition: right 0.32s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.32s ease;
    z-index: 1060 !important;
    gap: 4px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y !important;
    overscroll-behavior: contain;
    visibility: hidden;
    pointer-events: none;
  }

  .navbar-nav.open {
    right: 0;
    visibility: visible;
    pointer-events: auto;
  }

  .navbar-nav::before {
    content: 'Navigation Menu';
    display: block;
    font-family: 'Outfit', sans-serif;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #38bdf8;
    padding-bottom: 12px;
    margin-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
  }

  .navbar-nav .nav-item {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 2px;
  }

  .navbar-nav .nav-item:last-child {
    border-bottom: none;
  }

  .navbar-nav .nav-link {
    width: 100%;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    padding: 10px 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
  }

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

  .navbar-nav .nav-link:hover {
    color: #38bdf8;
    background: rgba(255, 255, 255, 0.06);
    padding-left: 16px;
  }

  .navbar-nav .nav-link.active {
    color: #38bdf8;
    background: rgba(0, 139, 208, 0.18);
    border-left: 3px solid #008BD0;
    font-weight: 700;
    padding-left: 12px;
  }

  .navbar-nav .nav-link i {
    color: #38bdf8;
    font-size: 0.75rem;
    transition: transform 0.25s ease;
  }

  .navbar-nav .nav-item.dropdown-open > .nav-link i {
    transform: rotate(180deg);
  }

  .navbar-nav .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    width: 100%;
    background: rgba(5, 14, 28, 0.65);
    border-radius: 10px;
    padding: 6px;
    margin: 4px 0 8px;
    display: none;
  }

  .navbar-nav .nav-item.dropdown-open .dropdown-menu {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .navbar-nav .dropdown-item {
    font-family: 'Outfit', sans-serif;
    font-size: 0.88rem;
    font-weight: 500;
    color: #cbd5e1;
    padding: 9px 12px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
  }

  .navbar-nav .dropdown-item:hover {
    background: rgba(0, 139, 208, 0.2);
    color: #ffffff;
    padding-left: 16px;
  }

  .mobile-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex !important;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: #ffffff;
    cursor: pointer;
    z-index: 10;
    transition: all 0.25s ease;
    padding: 0;
  }

  .mobile-close-btn:hover {
    background: var(--secondary);
    border-color: var(--secondary);
    transform: rotate(90deg);
  }

  /* Nav Backdrop Dimmer */
  .nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: rgba(10, 25, 47, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1040 !important;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .nav-backdrop.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* --------------------------------------------------------------------------
     Mobile App Bottom Navigation Bar
     -------------------------------------------------------------------------- */
  .mobile-bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    justify-content: space-around;
    z-index: 1020;
    padding: 0 4px;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
  }

  .bottom-bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    text-decoration: none;
    color: #94a3b8;
    font-family: 'Outfit', sans-serif;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 6px 2px;
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .bottom-bar-item i {
    font-size: 1.15rem;
    transition: transform 0.2s ease;
  }

  .bottom-bar-item:hover,
  .bottom-bar-item.active {
    color: #38bdf8;
  }

  .bottom-bar-item.whatsapp i {
    color: #25D366;
  }

  .bottom-bar-item.enquiry-btn i {
    color: var(--secondary);
  }

  /* Floating Action Buttons: Position above the bottom bar without overlap */
  .floating-actions-container {
    bottom: 74px !important;
    right: 14px !important;
    gap: 8px !important;
  }

  .floating-btn {
    width: 44px !important;
    height: 44px !important;
    font-size: 1.15rem !important;
  }

  /* Hide duplicate Call and WhatsApp float buttons on mobile (they are in bottom bar) */
  .floating-actions-container .btn-call-float,
  .floating-actions-container .btn-whatsapp-float {
    display: none !important;
  }

  .sticky-enquire-tab {
    display: none !important;
  }

  /* --------------------------------------------------------------------------
     Fullscreen Campus Video Hero Section (Mobile Optimized)
     -------------------------------------------------------------------------- */
  .hero-fullscreen-video {
    height: calc(100vh - 60px);
    height: calc(100svh - 60px);
    min-height: 400px;
  }

  .fullscreen-video-top-tag {
    top: 12px;
    left: 12px;
    font-size: 0.72rem;
    padding: 5px 12px;
  }

  .fullscreen-video-bar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .fullscreen-video-heading {
    font-size: 1.2rem;
    line-height: 1.25;
  }

  .fullscreen-campus-pill {
    font-size: 0.7rem;
    padding: 3px 9px;
  }

  .fullscreen-video-controls {
    align-self: flex-start;
  }

  .video-control-pill {
    padding: 5px 10px;
    font-size: 0.72rem;
  }

  .scroll-text {
    font-size: 0.72rem;
    padding: 5px 12px;
  }

  /* --------------------------------------------------------------------------
     Hero Overview Section (Home Page)
     -------------------------------------------------------------------------- */
  .hero-overview-section {
    padding: 35px 0 20px;
  }

  .hero-pill {
    font-size: 0.75rem;
    padding: 4px 12px;
  }

  .hero-title {
    font-size: 1.85rem;
    line-height: 1.22;
  }

  .hero-lead {
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 20px;
  }

  .hero-search-box {
    width: 100%;
    max-width: 100%;
    margin-bottom: 20px;
    padding: 4px 6px 4px 14px;
  }

  .hero-search-box input {
    font-size: 16px; /* Prevents iOS auto-zoom */
  }

  .hero-search-box button {
    padding: 8px 14px;
    font-size: 0.85rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-bottom: 25px;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 20px;
    font-size: 0.92rem;
  }

  .hero-badges-strip {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    text-align: left;
  }

  .hero-feature-item {
    font-size: 0.78rem;
    gap: 6px;
  }

  /* --------------------------------------------------------------------------
     Course Filters: Native Horizontal App Chips
     -------------------------------------------------------------------------- */
  .courses-filter-bar {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    gap: 8px !important;
    padding: 4px 4px 14px !important;
    margin-bottom: 22px !important;
    justify-content: flex-start !important;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .courses-filter-bar::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 16px;
    font-size: 0.84rem;
    border-radius: var(--radius-full);
  }

  /* Course Grid & Cards */
  .courses-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .course-card {
    border-radius: var(--radius-md);
  }

  .course-card-thumb {
    height: 190px;
  }

  .course-card-body {
    padding: 20px 18px;
  }

  .course-card-title {
    font-size: 1.18rem;
  }

  .course-actions {
    flex-direction: column;
    gap: 8px;
  }

  .course-actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* --------------------------------------------------------------------------
     Subpages Grid Reflows (About, Affiliation, Awards, Gallery, Contact)
     -------------------------------------------------------------------------- */
  .about-story-grid,
  div[style*="display: grid"][style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 25px !important;
  }

  .about-vision-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .about-vision-grid > div {
    padding: 24px 18px !important;
  }

  .affiliation-cards-grid,
  div[style*="grid-template-columns: repeat(3, 1fr)"] {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .awards-cards-grid,
  div[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 14px !important;
  }

  .why-us-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-box {
    padding: 22px 18px;
  }

  .recruiters-grid {
    gap: 10px !important;
  }

  .recruiter-badge {
    width: 100%;
    justify-content: center;
    font-size: 0.92rem;
    padding: 10px 14px;
  }

  .contact-card-wrapper {
    grid-template-columns: 1fr;
    border-radius: 14px;
  }

  .contact-info-panel,
  .contact-form-panel {
    padding: 24px 18px;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .gallery-filter-chips {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    gap: 8px !important;
    padding-bottom: 10px !important;
    scrollbar-width: none;
  }

  .gallery-filter-chips::-webkit-scrollbar {
    display: none;
  }

  .gallery-cat-btn {
    flex: 0 0 auto;
    white-space: nowrap;
    padding: 8px 14px;
    font-size: 0.82rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
    padding-bottom: 15px;
  }

  /* Modals (Enquiry & Course Details) */
  .modal-backdrop {
    padding: 12px;
  }

  .modal-dialog {
    max-width: 96vw;
    width: 100%;
    margin: 8px auto;
    max-height: 92vh;
    border-radius: 14px;
  }

  .modal-header-custom {
    padding: 16px 18px;
  }

  .modal-body-custom {
    padding: 18px 16px;
    max-height: calc(92vh - 65px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal-course-stats-grid {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    padding: 10px !important;
  }

  .quiz-options-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   3. Small Mobile Devices (max-width: 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.6rem;
  }

  .hero-fullscreen-video {
    min-height: 380px;
  }

  .fullscreen-video-heading {
    font-size: 1.05rem;
  }

  .fullscreen-video-top-tag {
    font-size: 0.68rem;
    padding: 4px 10px;
  }

  .spotlight-stat-box {
    padding: 10px 12px;
    gap: 10px;
  }

  .spotlight-stat-icon {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .spotlight-stat-content .spotlight-num {
    font-size: 1.35rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .stat-item::after {
    display: none;
  }

  .hero-badges-strip {
    grid-template-columns: 1fr;
  }

  .awards-cards-grid,
  div[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: 1fr !important;
  }

  .placed-students-grid {
    grid-template-columns: 1fr;
  }

  .hero-event-links-card {
    padding: 14px 12px;
  }

  .hero-event-item {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px;
  }

  .hero-event-btn {
    width: 100%;
    justify-content: center;
    padding: 9px 14px;
    font-size: 0.82rem;
  }

  .verify-result-grid {
    grid-template-columns: 1fr !important;
  }
}

/* --------------------------------------------------------------------------
   4. Ultra-Compact Devices (max-width: 360px)
   -------------------------------------------------------------------------- */
@media (max-width: 360px) {
  .nav-container {
    padding: 8px 12px;
  }

  .logo-img {
    height: 34px;
  }

  .branch-tag .branch-name {
    font-size: 0.78rem;
  }

  .branch-tag .branch-sub {
    font-size: 0.58rem;
  }

  .header-cta-group .btn-secondary {
    padding: 6px 10px !important;
    font-size: 0.75rem !important;
  }

  .hero-title {
    font-size: 1.45rem;
  }

  .banner-main-title {
    font-size: 1.45rem !important;
  }
}