.mobile-home { display: none; }
.world-tools .world-view-preset, .world-tools #world-full-view { width: auto; padding: 0 14px; border-radius: 24px; font-size: .875rem; }
.world-touch-hint { display: none; }
[data-scene-nav="home"], [data-scene-nav="pricing"] { display: none; }
@media (max-width: 760px) {
  :root { --header: 132px; }
  html { scroll-snap-type: none; }
  body > main, body > .section-index { display: none; }
  .mobile-home { display: block; padding: calc(var(--header) + 34px) 24px 40px; max-width: 44rem; margin: 0 auto; }
  .world-open .mobile-home { display: none; }
  .world-reading .world-viewport { display: none; }
  .world-reading .world-info { margin-top: 0; }
  .world-workspace > .world-tools { position: relative; inset: auto; flex: none; max-width: none; width: auto; margin: 0; padding: 14px 16px; border-top: 1px solid #264638; background: #05170f; gap: 8px; }
  .world-reading .world-workspace > .world-tools { display: none; }
  .world-touch-hint { display: block; width: 100%; margin: 4px 0 0; color: #a4c5b2; font-size: .875rem; line-height: 1.5; }
  .architecture-world .world-viewport,
  .world-landscape.world-overview .world-viewport { height: clamp(340px,55svh,520px); min-height: clamp(340px,55svh,520px); flex: 0 0 auto; }
  #architecture-canvas { overscroll-behavior: contain; user-select: none; -webkit-user-select: none; }
  .world-viewport { touch-action: none; overscroll-behavior: contain; }
  .site-header, .world-open .site-header { height: auto; min-height: 0; grid-template-columns: minmax(0,1fr) auto; grid-template-rows: auto auto; gap: 8px; padding: 12px 16px 8px; }
  .site-header .brand { min-width: 0; }
  .site-header .brand small { display: none; }
  .site-header .brand-mark { width: 36px; height: 42px; }
  .site-header .header-actions, .world-open .header-actions { grid-column: 2; grid-row: 1; justify-self: end; flex-wrap: nowrap; gap: 4px; }
  .site-header .journey-nav, .site-header .menu-toggle, .site-header .pilot-link,
  .site-header .world-price-shortcut, .site-header .world-reserve-shortcut { display: none; }
  .site-header .architecture-nav, .world-open .architecture-nav { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); grid-column: 1 / -1; grid-row: 2; width: 100%; gap: 4px; }
  .architecture-nav button { display: block; font-size: .875rem; padding: 10px 4px; }
  .site-header .audio-toggle span { display: none; }
  .mobile-home h1 { font: 400 clamp(2.4rem,9vw,3.8rem)/1.08 var(--serif); letter-spacing: -.035em; margin: 18px 0 24px; color: #e8f6ee; }
  .mobile-home p { color: #adc6b9; font-size: 1rem; line-height: 1.65; }
  .mobile-home .eyebrow { font-size: .8125rem; color: #87ba9f; }
  .mobile-home .mobile-home-lede { font-size: 1.2rem; color: #d5e8dd; line-height: 1.5; }
  .mobile-home a, .mobile-home button { min-height: 44px; display: inline-flex; align-items: center; font-size: 1rem; }
  .mobile-home a { color: #b8f4d5; text-decoration: none; }
  .mobile-home a:focus-visible, .mobile-home button:focus-visible { outline: 2px solid #b8f4d5; outline-offset: 4px; }
  .mobile-home a:hover { text-decoration: underline; }
  .mobile-home .mobile-home-primary { display: flex; justify-content: center; padding: 15px; margin-top: 28px; color: #052419; background: #b8ebd0; border-radius: 6px; font-weight: 600; }
  .mobile-home-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; margin: 10px 0 28px; }
  .mobile-home-tree { border-top: 1px solid #2a493a; border-bottom: 1px solid #2a493a; padding: 20px 0; }
  .mobile-home-tree h2 { font: 400 2rem/1.2 var(--serif); margin: 8px 0; }
  .mobile-home .mobile-home-boundary { font-size: .875rem; color: #94ad9e; margin-top: 24px; }
  #experience-retry[hidden] { display: none; }
  #experience-load-status:not(:empty) { position: fixed; bottom: 16px; left: 16px; right: 16px; z-index: 50; padding: 14px 18px; margin: 0; border: 1px solid #466e58; border-radius: 6px; background: #071b12; color: #d6eddf; box-shadow: 0 10px 35px #0008; }
  #experience-retry { border: 1px solid #6da48a; color: #d6eddf; border-radius: 4px; padding: 8px 16px; background: #102c20; cursor: pointer; }
}

/* Full view uses the available screen without requiring native fullscreen support. */
.architecture-world.world-expanded { inset: 0; z-index: 2000; display: block; overflow: hidden; }
.world-expanded .world-heading, .world-expanded .world-navigation,
.world-expanded .world-info { display: none; }
.architecture-world.world-expanded .world-workspace { display: grid; grid-template-columns: minmax(0,1fr); grid-template-rows: minmax(0,1fr) auto; width: 100%; height: 100%; padding: 0; overflow: hidden; }
.architecture-world.world-expanded .world-workspace .world-viewport { width: 100%; height: 100%; min-height: 0; margin: 0; flex: none; }
.architecture-world.world-expanded .world-tools { position: relative; inset: auto; display: flex; flex-wrap: wrap; max-width: none; margin: 0; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: #061a12; border-top: 1px solid #294837; gap: 8px; }
.world-expanded .world-tools > :not(.world-sound-mixer):not(.world-more-controls):not(.world-sound-control):not(.world-view-options):not(.world-guide):not(.world-view-preset):not(#world-full-view):not([data-world="in"]):not([data-world="out"]):not(#world-roots):not(.world-touch-hint) { display: none; }
.world-expanded .world-orbit-hint { display: none; }
.world-expanded #world-full-view { color: #06251a; background: #bcebd3; }