/* ========================================================================
   COMPREHENSIVE MOBILE & DESKTOP RESPONSIVE ENHANCEMENTS
   Mobile-First Approach: Optimized for all screen sizes
   ======================================================================== */

/* ========================================================================
   MOBILE DEVICES (320px - 576px)
   ======================================================================== */

@media (max-width: 575px) {
  /* Container adjustments for small screens */
  .container {
    padding-right: 12px;
    padding-left: 12px;
    max-width: 100%;
  }

  .row {
    margin-right: -10px;
    margin-left: -10px;
  }

  .col-12, .col-6 {
    padding: 10px;
  }

  /* Header adjustments for mobile */
  #navbar {
    padding: 15px 0;
  }

  #navbar.scrolled {
    padding: 10px 0;
  }

  .header-container {
    padding: 0 12px;
  }

  .beldex-logo-svg {
    width: 100px;
    height: 32px;
  }

  .header-cta {
    display: none !important;
  }

  /* Main content adjustments */
  .whole-main-section {
    padding-top: 80px;
  }

  .use-bdx {
    padding: 40px 0;
  }

  .use-bdx-content {
    order: 2;
    padding-bottom: 30px;
  }

  .use-bdx-img {
    order: 1;
    padding: 20px 0;
  }

  .use-bdx h1 {
    font-size: 28px;
    line-height: 1.3;
  }

  .use-bdx h2 {
    font-size: 24px;
    line-height: 1.3;
  }

  .use-bdx h5 {
    font-size: 16px;
    margin-bottom: 20px;
  }

  .use-bdx p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
  }

  /* Button adjustments */
  .button {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 12px 20px;
    font-size: 14px;
  }

  /* Dropdown menu adjustments */
  .usebdx-drp-wrapper {
    width: 100%;
    left: auto;
    right: 0;
    top: calc(100% + 10px);
    max-width: 300px;
  }

  .usebdx-dropdown .row {
    flex-direction: column;
  }

  .usebdx-dropdown .col-12,
  .usebdx-dropdown .col-6 {
    flex: 0 0 100%;
    max-width: 100%;
    padding: 10px 0;
  }

  .usebdx-wallets-inside a {
    font-size: 13px;
    padding: 8px 10px;
  }

  /* Grid adjustments */
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 25px;
  }

  .stat-box {
    padding: 16px;
  }

  .stat-num {
    font-size: 22px;
  }

  .stat-box p {
    font-size: 12px;
  }

  /* Exchange links grid */
  .usebdx-exchange {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .usebdx-exchange a {
    padding: 12px;
    font-size: 13px;
  }

  /* Utility cards */
  .utility-cards-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .utility-card {
    padding: 20px;
  }

  .utility-card-icon {
    font-size: 32px;
  }

  .utility-card h4 {
    font-size: 14px;
  }

  .utility-card p {
    font-size: 12px;
  }

  /* Mobile image sizing */
  .use-bdx-img img {
    max-width: 300px;
    padding: 15px 0;
  }

  /* Footer adjustments */
  .whole-footer {
    padding: 50px 0 30px;
  }

  .footer-grid {
    margin-bottom: 30px;
  }

  /* Mobile menu text size */
  .mobile-nav-content {
    padding: 20px;
  }

  .mobile-nav-group h4 {
    font-size: 14px;
    margin-bottom: 12px;
  }

  .mobile-nav-group a {
    font-size: 13px;
    padding: 8px 0;
  }

  .mobile-cta-btn {
    padding: 10px 16px;
    font-size: 13px;
  }
}

/* ========================================================================
   TABLET DEVICES (576px - 768px)
   ======================================================================== */

@media (min-width: 576px) and (max-width: 767px) {
  .container {
    padding-right: 16px;
    padding-left: 16px;
    max-width: 100%;
  }

  .beldex-logo-svg {
    width: 110px;
    height: 36px;
  }

  .whole-main-section {
    padding-top: 90px;
  }

  .use-bdx {
    padding: 50px 0;
  }

  .use-bdx h1 {
    font-size: 36px;
  }

  .use-bdx h2 {
    font-size: 32px;
  }

  .use-bdx h5 {
    font-size: 18px;
  }

  .use-bdx p {
    font-size: 14px;
    margin-bottom: 25px;
  }

  .button {
    padding: 12px 24px;
    font-size: 14px;
  }

  .usebdx-drp-wrapper {
    width: 280px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .stat-num {
    font-size: 28px;
  }

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

  .use-bdx-img {
    padding: 25px;
  }

  .use-bdx-img img {
    max-width: 360px;
  }
}

/* ========================================================================
   SMALL DESKTOP / LANDSCAPE TABLETS (768px - 992px)
   ======================================================================== */

@media (min-width: 768px) and (max-width: 991px) {
  .container {
    max-width: 720px;
  }

  .beldex-logo-svg {
    width: 120px;
    height: 40px;
  }

  .whole-main-section {
    padding-top: 100px;
  }

  .use-bdx {
    padding: 60px 0;
  }

  .use-bdx h1 {
    font-size: 42px;
  }

  .use-bdx h2 {
    font-size: 38px;
  }

  .use-bdx h5 {
    font-size: 20px;
  }

  .use-bdx p {
    font-size: 15px;
    margin-bottom: 30px;
  }

  .button {
    padding: 13px 26px;
    font-size: 15px;
  }

  .usebdx-drp-wrapper {
    width: 450px;
  }

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

  .stat-num {
    font-size: 32px;
  }

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

  .use-bdx-img img {
    max-width: 380px;
  }
}

/* ========================================================================
   MEDIUM DESKTOP (992px - 1200px)
   ======================================================================== */

@media (min-width: 992px) and (max-width: 1199px) {
  .container {
    max-width: 960px;
  }

  .beldex-logo-svg {
    width: 125px;
    height: 42px;
  }

  .use-bdx {
    padding: 70px 0;
  }

  .use-bdx h1 {
    font-size: 46px;
  }

  .use-bdx h2 {
    font-size: 42px;
  }

  .use-bdx h5 {
    font-size: 21px;
  }

  .use-bdx p {
    font-size: 15px;
    margin-bottom: 32px;
  }

  .button {
    padding: 14px 28px;
    font-size: 15px;
  }

  .usebdx-drp-wrapper {
    width: 550px;
  }

  .stats-grid {
    gap: 22px;
  }

  .stat-num {
    font-size: 36px;
  }

  .use-bdx-img img {
    max-width: 400px;
  }
}

/* ========================================================================
   LARGE DESKTOP (1200px+)
   ======================================================================== */

@media (min-width: 1200px) {
  .container {
    max-width: 1240px;
  }

  .beldex-logo-svg {
    width: 130px;
    height: 45px;
  }

  .whole-main-section {
    padding-top: 120px;
  }

  .use-bdx {
    padding: 80px 0;
  }

  .use-bdx h1 {
    font-size: 50px;
  }

  .use-bdx h2 {
    font-size: 44px;
  }

  .use-bdx h5 {
    font-size: 22px;
  }

  .use-bdx p {
    font-size: 16px;
    margin-bottom: 35px;
  }

  .button {
    padding: 14px 28px;
    font-size: 16px;
  }

  .usebdx-drp-wrapper {
    width: 600px;
  }

  .stats-grid {
    gap: 24px;
  }

  .stat-num {
    font-size: 34px;
  }

  .use-bdx-img img {
    max-width: 440px;
  }

  .whole-footer {
    padding: 80px 0 40px;
  }
}

/* ========================================================================
   LANDSCAPE MODE ADJUSTMENTS
   ======================================================================== */

@media (max-height: 500px) and (orientation: landscape) {
  .whole-main-section {
    padding-top: 70px;
  }

  .use-bdx {
    padding: 30px 0;
  }

  .use-bdx h1,
  .use-bdx h2 {
    margin-bottom: 15px;
  }

  .use-bdx p {
    margin-bottom: 15px;
  }

  .stats-grid {
    gap: 12px;
  }
}

/* ========================================================================
   FINE-TUNING FOR SPECIFIC DEVICE ORIENTATIONS
   ======================================================================== */

/* iPhone X and similar notch devices */
@supports (padding: max(0px)) {
  .container {
    padding-right: max(12px, env(safe-area-inset-right));
    padding-left: max(12px, env(safe-area-inset-left));
  }

  #navbar {
    padding-top: max(15px, env(safe-area-inset-top));
  }

  .whole-footer {
    padding-bottom: max(30px, env(safe-area-inset-bottom));
  }
}

/* ========================================================================
   ACCESSIBILITY & HIGH-DPI SCREEN ADJUSTMENTS
   ======================================================================== */

@media (min-width: 2560px) {
  .use-bdx h1 {
    font-size: 64px;
  }

  .use-bdx h2 {
    font-size: 56px;
  }

  .use-bdx p {
    font-size: 18px;
  }

  .button {
    padding: 16px 32px;
    font-size: 18px;
  }

  .stat-num {
    font-size: 40px;
  }

  .use-bdx-img img {
    max-width: 500px;
  }
}

/* Print styles */
@media print {
  #navbar,
  .header-cta,
  .hamburger-menu,
  .mobile-nav-overlay,
  .whole-footer {
    display: none;
  }

  .whole-main-section {
    padding-top: 0;
  }

  .use-bdx {
    page-break-inside: avoid;
    padding: 20px 0;
  }
}