@media (min-width: 1600px) {
  .container {
    width: min(1360px, calc(100% - 80px));
  }

  .hero-grid {
    gap: 72px;
  }

  .hero {
    min-height: 760px;
  }

  .course-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 1200px) {
  .nav-menu {
    gap: 16px;
    font-size: 0.88rem;
  }

  .nav-cta {
    padding: 0 18px;
  }

  .hero-grid,
  .about-grid,
  .choose-grid {
    gap: 42px;
  }

  .hero-content h1 {
    font-size: 5rem;
  }

  .course-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .search-card {
    grid-template-columns: 180px repeat(3, 1fr) 180px;
  }

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

@media (max-width: 1024px) {
  .topbar-inner {
    justify-content: center;
  }

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

  .topbar-right {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 78px;
    right: 24px;
    left: 24px;
    display: grid;
    max-height: 0;
    overflow: hidden;
    gap: 0;
    border: 1px solid transparent;
    border-radius: 8px;
    background: var(--white);
    box-shadow: var(--shadow);
    transition: max-height 0.3s ease, border-color 0.3s ease;
  }

  .nav-menu.open {
    max-height: 480px;
    border-color: var(--line);
  }

  .nav-menu a {
    padding: 15px 18px;
    border-bottom: 1px solid var(--line);
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-toggle.open span:first-child {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:last-child {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding-top: 64px;
  }

  .hero-grid,
  .choose-grid,
  .news-grid,
  .contact-grid,
  .lms-hero-grid,
  .lms-overview-grid,
  .lms-video-layout {
    grid-template-columns: 1fr;
  }

  .hero-content {
    max-width: 760px;
  }

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

  .stats-card {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, 1fr);
  }

  .stats-card div {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .stats-card div:last-child {
    border-right: 0;
  }

  .hero-media {
    min-height: auto;
  }

  .hero-media img {
    height: 520px;
  }

  .aicte-certification-badge {
    top: -144px;
    right: 18px;
  }

  .hero-features {
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
  }

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

  .search-title,
  .search-card .btn {
    grid-column: 1 / -1;
  }

  .course-stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lms-card-grid,
  .admin-layout,
  .assessment-grid,
  .dashboard-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .progress-panel {
    grid-row: auto;
  }

  .choose-media img {
    height: 430px;
  }

  .admission-banner {
    min-height: 520px;
  }
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 32px, 1180px);
  }

  .section {
    padding: 58px 0;
  }

  h1 {
    font-size: 3.2rem;
  }

  .hero-content h1 {
    font-size: 4.15rem;
  }

  h2 {
    font-size: 2.05rem;
  }

  .topbar {
    display: none;
  }

  .navbar {
    min-height: 70px;
  }

  .nav-menu {
    top: 70px;
    right: 16px;
    left: 16px;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 58px 0 120px;
  }

  .hero-grid {
    gap: 34px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-features,
  .about-grid,
  .search-card,
  .check-list,
  .course-grid,
  .gallery-grid,
  .admission-banner,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .stats-card div {
    grid-template-columns: 44px 1fr;
    justify-items: stretch;
    text-align: left;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero-media img,
  .about-media img,
  .choose-media img,
  .lms-hero-media img {
    height: 380px;
  }

  .aicte-certification-badge {
    top: -126px;
    right: 16px;
    width: 112px;
    height: 112px;
    padding: 15px;
  }

  .aicte-certification-badge img {
    width: 62px;
    height: 62px;
  }

  .aicte-certification-badge span,
  .aicte-certification-badge strong {
    font-size: 0.52rem;
  }

  .achievement-card {
    right: 14px;
    bottom: 20px;
    min-width: 184px;
    padding: 14px 16px;
  }

  .achievement-card i {
    width: 44px;
    height: 44px;
  }

  .achievement-card strong {
    font-size: 2rem;
  }

  .course-search {
    margin-top: -54px;
  }

  .search-card {
    padding: 18px;
  }

  .course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .course-discovery-panel {
    padding: 14px;
  }

  .course-filter-bar {
    gap: 8px;
  }

  .course-filter-btn {
    flex: 1 1 auto;
    padding: 0 12px;
  }

  .course-card {
    min-height: 330px;
  }

  .lms-hero {
    padding: 58px 0 40px;
  }

  .lms-tabbar {
    top: 78px;
  }

  .lms-card-grid,
  .admin-layout,
  .assessment-grid,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .lesson-list article,
  .download-list article {
    align-items: stretch;
    flex-direction: column;
  }

  .choose {
    width: min(100% - 32px, 1180px);
    background:
      linear-gradient(90deg, rgba(2, 10, 31, 0.98), rgba(8, 23, 64, 0.92)),
      #06152c;
  }

  .choose-features {
    grid-template-columns: 1fr;
  }

  .testimonial-shell {
    grid-template-columns: 1fr;
  }

  .slider-btn {
    display: none;
  }

  .testimonial-card {
    padding: 30px 20px;
  }

  .gallery-item {
    height: 250px;
  }

  .admission-banner {
    padding: 26px;
  }

  .admission-banner img {
    height: 280px;
  }

  .contact-form,
  .contact-details {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .choose {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: 2.65rem;
  }

  .hero-content h1 {
    font-size: 3.08rem;
  }

  h2 {
    font-size: 1.75rem;
  }

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

  .course-stat-card {
    min-height: 106px;
    padding: 18px 18px 18px 76px;
  }

  .course-stat-card i {
    top: 22px;
    left: 18px;
  }

  .course-card {
    min-height: auto;
  }

  .course-card-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .course-link {
    width: 100%;
  }

  .lms-hero h1 {
    font-size: 2.42rem;
  }

  .lms-hero-media img {
    height: 300px;
  }

  .lms-floating-card {
    position: static;
    margin-top: 14px;
  }

  .lms-tabbar {
    top: 70px;
    padding: 10px;
  }

  .lms-tabbar button {
    min-height: 38px;
  }

  .lms-panel {
    padding: 20px;
  }

  .download-list article > div,
  .lms-card-actions {
    width: 100%;
  }

  .download-list .btn,
  .lms-card-actions .btn {
    flex: 1 1 120px;
  }

  .logo-text {
    font-size: 1.2rem;
  }

  .logo-mark {
    width: 40px;
    height: 40px;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .hero-media img,
  .about-media img,
  .choose-media img {
    height: 310px;
  }

  .hero-features span {
    white-space: normal;
  }

  .aicte-certification-badge {
    top: -110px;
    width: 94px;
    height: 94px;
    padding: 12px;
  }

  .aicte-certification-badge img {
    width: 50px;
    height: 50px;
  }

  .aicte-certification-badge span,
  .aicte-certification-badge strong {
    font-size: 0.45rem;
  }

  .aicte-certification-badge span {
    top: 9px;
  }

  .aicte-certification-badge strong {
    bottom: 9px;
  }

  .achievement-card {
    right: 8px;
    min-width: 166px;
    gap: 10px;
  }

  .achievement-card i {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .achievement-card strong {
    font-size: 1.72rem;
  }

  .achievement-card span {
    font-size: 0.72rem;
  }

  .play-tour {
    right: 14px;
    bottom: 14px;
    padding: 12px;
    font-size: 0.86rem;
  }

  .play-tour i {
    width: 34px;
    height: 34px;
  }

  .faq-item button {
    padding: 18px;
    font-size: 0.95rem;
  }

  .faq-item.active p {
    padding: 0 18px 18px;
  }
}