:root {
  --mobile-gutter: clamp(16px, 5vw, 28px);
  --mobile-target: 44px;
  --mobile-panel: rgba(5, 5, 5, .98);
}

@media (max-width: 767px) {
  html { scroll-padding-top: 76px; }
  img, svg, canvas, video { max-width: 100%; }
  input, select, textarea, button { max-width: 100%; }

  .main-nav, .top-nav, .site-header {
    position: sticky !important;
    inset: 0 0 auto !important;
    min-height: 64px;
    padding: 10px var(--mobile-gutter) !important;
    background: var(--mobile-panel) !important;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
  }

  .main-nav, .top-nav { display: flex !important; align-items: center !important; gap: 12px; }
  .main-nav { justify-content: space-between !important; }
  .top-nav { justify-content: space-between !important; }
  .site-header { display: flex !important; justify-content: space-between !important; }
  .main-nav .nav-right, .top-nav .nav-right, .site-header .header-nav { display: none !important; }

  .mobile-nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--mobile-target);
    min-width: var(--mobile-target);
    height: var(--mobile-target);
    margin-left: auto;
    color: #fff;
    border: 1px solid rgba(255,255,255,.3);
    border-radius: 999px;
    background: rgba(255,255,255,.06);
    font: 700 12px/1 'IBM Plex Mono', monospace;
    letter-spacing: .08em;
  }

  .mobile-nav-panel {
    position: fixed;
    top: 64px;
    right: 0;
    left: 0;
    z-index: 999;
    display: none;
    max-height: calc(100dvh - 64px);
    overflow: auto;
    padding: 12px var(--mobile-gutter) calc(20px + env(safe-area-inset-bottom));
    border-top: 1px solid rgba(255,255,255,.15);
    border-bottom: 1px solid rgba(255,255,255,.15);
    background: var(--mobile-panel);
    box-shadow: 0 18px 38px rgba(0,0,0,.42);
  }
  .mobile-nav-panel[data-open='true'] { display: block; }
  .mobile-nav-panel a, .mobile-nav-panel button { min-height: var(--mobile-target); }
  .mobile-nav-panel .nav-right, .mobile-nav-panel .header-nav {
    display: grid !important;
    gap: 8px;
    margin: 0 !important;
  }
  .mobile-nav-panel .nav-right > a, .mobile-nav-panel .header-nav > a {
    display: flex !important;
    align-items: center;
    padding: 0 12px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 8px;
  }
  .mobile-nav-panel .lang-switch {
    display: grid !important;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 6px 0 0 !important;
    padding: 0 !important;
    border: 0 !important;
  }
  .mobile-nav-panel .lang-switch button { width: 100%; padding: 0 6px !important; }

  .hero, .page, .page-shell, .content, main { min-width: 0; }
  .hero { padding-right: var(--mobile-gutter) !important; padding-left: var(--mobile-gutter) !important; }
  .hero-title, h1 { overflow-wrap: anywhere; }

  body:has(.logos-grid) .hero { min-height: 0 !important; height: auto !important; padding-top: 34px !important; padding-bottom: 22px !important; }
  .hero-logo-3d { width: min(100%, 560px) !important; }
  #interwave-overlay { display: none !important; }
  .logos-section { padding: 18px var(--mobile-gutter) 54px !important; }
  .logos-grid {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    width: min(100%, 540px) !important;
    max-width: none !important;
    margin: 0 auto !important;
    gap: 14px !important;
  }
  .logo-item, .logo-item:nth-child(n) {
    width: auto !important;
    max-width: none !important;
    min-width: 0 !important;
    flex-basis: auto !important;
    padding: 16px !important;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 12px;
    background: rgba(255,255,255,.025);
  }
  .logo-visual { min-height: var(--mobile-target); }
  .pixel-text-simple { white-space: normal !important; text-align: center; }
  .logo-description, .logo-item:nth-child(n) .logo-description {
    position: static !important;
    display: block !important;
    width: auto !important;
    margin: 12px 0 0 !important;
    opacity: 1 !important;
    text-align: left !important;
    pointer-events: auto !important;
  }
  .logo-description h3 { font-size: 11px !important; }
  .logo-description p { font-size: 13px !important; line-height: 1.55 !important; }
  .yoyaku-dropdown-parent .logo-visual { cursor: pointer; }
  .yoyaku-dropdown {
    position: static !important;
    display: none !important;
    min-width: 0 !important;
    margin-top: 12px;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
  }
  .yoyaku-dropdown-parent[data-mobile-expanded='true'] .yoyaku-dropdown { display: grid !important; }
  .yoyaku-dropdown-link { min-height: var(--mobile-target); display: flex !important; align-items: center; justify-content: center; }

  .site-footer, footer { padding-right: var(--mobile-gutter); padding-left: var(--mobile-gutter); }
}

@media (min-width: 560px) and (max-width: 767px) {
  .logos-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}