/**
 * Tarabari Jatiya Bidyalaya - Comprehensive Responsive Engine
 * 100% Mobile Responsive for every Card, Button, Section, Grid, Form, and Header
 */

/* ========================================================
   1. LAPTOPS & INTERMEDIATE DESKTOPS (max-width: 1200px)
   ======================================================== */
@media (max-width: 1200px) {
  .navbar {
    gap: 0.65rem;
  }

  .brand-logo-img {
    width: 48px;
    height: 48px;
  }

  .brand-title {
    font-size: 1.15rem;
  }

  .brand-subtitle-as {
    font-size: 0.8rem;
  }

  .nav-links-list {
    gap: 0.15rem;
  }

  .nav-link {
    font-size: 0.82rem;
    padding: 0.4rem 0.45rem;
  }

  .nav-desktop-cta .btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.75rem;
  }

  .hero-grid {
    gap: 2.5rem;
  }

  .cards-grid-3,
  .activities-grid-4 {
    gap: 1.25rem;
  }
}

/* ========================================================
   2. TABLETS & COMPACT LAPTOPS (max-width: 992px)
   Mobile Off-Canvas Drawer & Grid Reflows
   ======================================================== */
@media (max-width: 992px) {
  /* Header & Off-Canvas Mobile Drawer */
  .nav-desktop-cta {
    display: none !important;
  }

  .mobile-toggle {
    display: flex !important;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 86vw;
    height: 100vh;
    background: #FFFFFF;
    box-shadow: -8px 0 32px rgba(0, 43, 158, 0.18);
    z-index: 10000;
    display: flex !important;
    flex-direction: column;
    padding: 0;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-menu-header {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface-alt);
    flex-shrink: 0;
  }

  .nav-drawer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .drawer-logo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    background: #FFFFFF;
    object-fit: contain;
    padding: 2px;
  }

  .drawer-title {
    font-size: 0.98rem;
    font-weight: 800;
    color: var(--royal-blue);
    line-height: 1.2;
  }

  .drawer-sub {
    font-family: var(--font-assamese);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
  }

  .nav-close-btn {
    background: none;
    border: none;
    font-size: 1.85rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
    border-radius: 4px;
    transition: var(--transition);
  }

  .nav-close-btn:hover {
    color: var(--primary);
    background: rgba(211, 24, 24, 0.08);
  }

  .nav-links-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 0;
  }

  .nav-link {
    padding: 0.85rem 1.5rem;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
  }

  .nav-link .drawer-icon {
    display: inline-flex !important;
    align-items: center;
    color: var(--royal-blue);
  }

  .nav-link:hover {
    background: var(--surface-alt);
    color: var(--primary);
  }

  .nav-link.active {
    background: var(--royal-bg);
    color: var(--royal-blue);
    border-left: 4px solid var(--primary);
    font-weight: 700;
  }

  .nav-drawer-footer {
    display: flex !important;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    background: #FFFFFF;
    margin-top: auto;
    flex-shrink: 0;
  }

  .nav-drawer-cta {
    width: 100%;
    justify-content: center;
    text-align: center;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .drawer-contacts {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .drawer-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
  }

  .drawer-contact-link:hover {
    color: var(--primary);
  }

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

  /* Hero Section */
  .hero-grid {
    grid-template-columns: 1fr !important;
    gap: 2.5rem;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions,
  .hero-cta-group {
    justify-content: center;
  }

  .hero-photo-wrapper,
  .hero-image-wrapper {
    max-width: 560px;
    margin: 0 auto;
    width: 100%;
  }

  /* About Section */
  .about-grid {
    grid-template-columns: 1fr !important;
    gap: 2.5rem;
  }

  .about-photo-col,
  .about-img-box {
    max-width: 560px;
    margin: 0 auto;
    width: 100%;
  }

  /* Principal Card */
  .principal-card-light,
  .principal-card {
    grid-template-columns: 1fr !important;
  }

  .principal-photo-col,
  .principal-photo-box {
    padding: 2.5rem 2rem 1.5rem 2rem;
    display: flex;
    justify-content: center;
    border-right: none !important;
    border-bottom: 1px solid var(--border);
  }

  .principal-portrait-img,
  .principal-photo {
    width: 200px;
    height: 200px;
    border-radius: 50% !important;
    object-fit: cover;
    margin: 0 auto;
  }

  .principal-body {
    padding: 2rem 2rem 2.5rem 2rem;
    text-align: left;
  }

  /* Content Grids (2 Columns on Tablet) */
  .cards-grid-3,
  .activities-grid-4,
  .academics-grid,
  .facilities-grid,
  .why-grid,
  .events-grid,
  .activities-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1.25rem;
  }

  .admission-grid {
    grid-template-columns: 1fr !important;
    gap: 2.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr !important;
    gap: 2.5rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 2.5rem;
  }
}

/* ========================================================
   3. MOBILE PHONES (max-width: 768px)
   1-Column Stacking for Every Card & Touch Optimization
   ======================================================== */
@media (max-width: 768px) {
  /* Top Bar */
  .top-bar-contact {
    display: none !important;
  }

  .top-bar .container {
    justify-content: space-between;
    gap: 0.35rem;
  }

  .top-bar-left {
    gap: 0.5rem;
    max-width: calc(100% - 150px);
  }

  .motto-badge {
    font-size: 0.74rem;
    padding: 0.18rem 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .top-bar-right {
    gap: 0.4rem;
  }

  /* Main Header */
  .navbar {
    padding: 0.5rem 0;
  }

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

  .brand-title {
    font-size: 1.05rem;
  }

  .brand-subtitle-as {
    font-size: 0.76rem;
  }

  .brand-estd {
    font-size: 0.68rem;
    padding: 1px 4px;
  }

  /* Hero Section */
  .hero-light,
  .hero {
    padding: 2.5rem 0 3.5rem 0;
  }

  .hero-title-main,
  .hero-title {
    font-size: 2.1rem !important;
    line-height: 1.22;
  }

  .hero-lead-text,
  .hero-subtitle {
    font-size: 1rem !important;
    line-height: 1.55;
  }

  .hero-actions,
  .hero-cta-group {
    flex-direction: column !important;
    width: 100% !important;
    gap: 0.75rem !important;
  }

  .hero-actions .btn,
  .hero-cta-group .btn {
    width: 100% !important;
    justify-content: center !important;
    text-align: center !important;
  }

  /* Floating Badge on Mobile becomes relative block below image */
  .hero-floating-badge {
    position: static !important;
    margin-top: 1rem !important;
    width: 100% !important;
    box-sizing: border-box !important;
    justify-content: flex-start !important;
  }

  /* Stats Section */
  .stats-wrapper {
    margin-top: 2rem !important;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.85rem !important;
  }

  .stat-card-light,
  .stat-card {
    padding: 1.25rem 0.85rem !important;
  }

  .stat-value,
  .stat-number {
    font-size: 2.1rem !important;
  }

  .stat-label {
    font-size: 0.82rem !important;
  }

  /* Vision & Mission */
  .vm-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
    margin-top: 2rem !important;
  }

  .vm-card {
    padding: 1.5rem 1.25rem !important;
  }

  /* Full 1-Column Stacking for Every Card Type */
  .cards-grid-3,
  .activities-grid-4,
  .academics-grid,
  .facilities-grid,
  .activities-grid,
  .why-grid,
  .events-grid {
    grid-template-columns: 1fr !important;
    gap: 1.25rem !important;
  }

  .academic-card-light,
  .academic-card,
  .facility-card-light,
  .facility-card,
  .activity-card-light,
  .activity-card,
  .event-card-light,
  .event-card,
  .why-card-light {
    width: 100% !important;
  }

  .card-photo-header,
  .academic-img,
  .facility-photo,
  .facility-img,
  .activity-photo,
  .activity-img,
  .event-photo,
  .event-img {
    height: 200px !important;
    width: 100% !important;
    object-fit: cover !important;
  }

  .card-body-padded {
    padding: 1.5rem !important;
  }

  /* Announcements / Circulars */
  .announcement-card-light,
  .announcement-card {
    padding: 1.25rem !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 1rem !important;
  }

  .announcement-card-light > div:first-child,
  .announcement-card > div:first-child {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.75rem !important;
    width: 100% !important;
  }

  .announcement-card-light .btn,
  .announcement-card .btn {
    width: 100% !important;
    justify-content: center !important;
  }

  .announcement-title {
    font-size: 1.15rem !important;
  }

  /* Photo Gallery */
  .gallery-filter {
    display: flex !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    gap: 0.5rem !important;
    padding-bottom: 0.65rem !important;
    scrollbar-width: none !important;
  }

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

  .filter-btn {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
    padding: 0.45rem 0.85rem !important;
    font-size: 0.82rem !important;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.75rem !important;
  }

  .gallery-thumb {
    height: 160px !important;
    object-fit: cover !important;
  }

  .gallery-overlay {
    padding: 0.75rem !important;
  }

  .gallery-caption {
    font-size: 0.82rem !important;
  }

  /* Quick Admission Enquiry Form */
  .enquiry-card-light,
  .enquiry-card {
    padding: 1.75rem 1.25rem !important;
    border-radius: var(--radius-lg) !important;
  }

  .form-row,
  .form-grid-2 {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  .form-control {
    font-size: 16px !important; /* Prevents auto-zoom in mobile Safari */
    padding: 0.75rem 0.9rem !important;
  }

  .enquiry-card-title {
    font-size: 1.35rem !important;
  }

  .enquiry-card-light .btn,
  .enquiry-card .btn {
    width: 100% !important;
    justify-content: center !important;
  }

  /* Contact Section */
  .contact-item {
    padding: 0.85rem !important;
  }

  .map-container {
    height: 280px !important;
    min-height: 280px !important;
  }

  .map-container iframe {
    height: 280px !important;
    min-height: 280px !important;
  }

  /* Institutional Footer */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }

  .footer-bottom-light .container {
    flex-direction: column !important;
    text-align: center !important;
    gap: 0.65rem !important;
  }

  /* Subpage Light Banners */
  .page-banner-light,
  .page-banner {
    padding: 2.25rem 1rem !important;
  }

  .page-banner-title {
    font-size: 1.85rem !important;
  }

  .section {
    padding: 3rem 0 !important;
  }

  .section-title {
    font-size: 1.85rem !important;
  }
}

/* ========================================================
   4. ULTRA-COMPACT SMARTPHONES (max-width: 480px)
   ======================================================== */
@media (max-width: 480px) {
  .brand-title {
    font-size: 0.98rem;
  }

  .brand-subtitle-as {
    font-size: 0.74rem;
  }

  .brand-estd {
    display: none;
  }

  .hero-title-main,
  .hero-title {
    font-size: 1.75rem !important;
  }

  .hero-lead-text,
  .hero-subtitle {
    font-size: 0.95rem !important;
  }

  .stats-grid {
    grid-template-columns: 1fr !important;
    gap: 0.75rem !important;
  }

  .gallery-grid {
    grid-template-columns: 1fr !important;
    gap: 0.75rem !important;
  }

  .gallery-thumb {
    height: 220px !important;
  }

  .section-title {
    font-size: 1.6rem !important;
  }

  .section-desc {
    font-size: 0.92rem !important;
  }

  .container {
    padding: 0 1rem !important;
  }
}

/* ========================================================
   Policies & Cookie Banner - 100% Mobile Responsive Overhaul
   ======================================================== */
@media (max-width: 991px) {
  .policy-layout-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
    padding: 1.75rem 0 3.5rem 0 !important;
  }

  .policy-sidebar {
    position: static !important;
    top: auto !important;
    width: 100% !important;
  }

  .policy-toc-card {
    padding: 1.15rem !important;
    background: #FFFFFF !important;
  }

  .policy-toc-toggle .policy-toc-chevron {
    display: inline-block !important;
  }

  .policy-toc-list {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)) !important;
    gap: 0.4rem !important;
  }

  .policy-toc-list.collapsed {
    display: none !important;
  }

  .policy-toc-toggle.collapsed .policy-toc-chevron {
    transform: rotate(-90deg) !important;
  }

  .policy-body-card {
    padding: 2rem 1.5rem !important;
  }

  .policy-title {
    font-size: 1.95rem !important;
  }
}

@media (max-width: 640px) {
  /* Cookie Banner Full-Width Mobile Bottom Sheet */
  .cookie-banner {
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
    border-radius: 20px 20px 0 0 !important;
    border-left: none !important;
    border-right: none !important;
    border-bottom: none !important;
    border-top: 3px solid var(--primary) !important;
    box-shadow: 0 -12px 35px rgba(0, 0, 0, 0.22) !important;
    padding: 1.25rem 1rem calc(1.25rem + env(safe-area-inset-bottom, 0px)) 1rem !important;
    box-sizing: border-box !important;
    margin: 0 !important;
  }

  .cookie-banner-title {
    font-size: 1rem !important;
  }

  .cookie-banner-desc {
    font-size: 0.84rem !important;
    line-height: 1.5 !important;
    margin-bottom: 1rem !important;
  }

  .cookie-banner-actions {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 0.5rem !important;
    width: 100% !important;
  }

  .cookie-btn-primary,
  .cookie-btn-secondary {
    width: 100% !important;
    text-align: center !important;
    padding: 0.65rem 0.5rem !important;
    font-size: 0.82rem !important;
  }

  .cookie-btn-link {
    grid-column: span 2 !important;
    text-align: center !important;
    margin: 0.35rem auto 0 auto !important;
    font-size: 0.82rem !important;
  }

  .policy-table-hint {
    display: flex !important;
  }
}

@media (max-width: 576px) {
  .policy-page-header {
    padding: 2rem 0 1.5rem 0 !important;
  }

  .policy-title {
    font-size: 1.55rem !important;
    line-height: 1.3 !important;
  }

  .policy-subtitle {
    font-size: 0.92rem !important;
    line-height: 1.55 !important;
  }

  .policy-meta-badges {
    gap: 0.35rem !important;
  }

  .policy-badge {
    font-size: 0.72rem !important;
    padding: 0.2rem 0.55rem !important;
  }

  .breadcrumbs {
    font-size: 0.82rem !important;
    margin-top: 0.85rem !important;
  }

  .policy-toc-list {
    grid-template-columns: 1fr !important;
  }

  .policy-body-card {
    padding: 1.25rem 0.95rem !important;
    border-radius: 12px !important;
  }

  .policy-section {
    margin-bottom: 2rem !important;
  }

  .policy-section h2 {
    font-size: 1.22rem !important;
  }

  .policy-section h3 {
    font-size: 1.05rem !important;
  }

  .policy-section p,
  .policy-section li {
    font-size: 0.92rem !important;
    line-height: 1.65 !important;
  }

  .policy-callout {
    padding: 0.9rem 1rem !important;
    font-size: 0.88rem !important;
  }

  .policy-officer-card {
    padding: 1rem !important;
  }

  .policy-officer-card p {
    font-size: 0.88rem !important;
  }
}