/* =========================================================
   BIM LABS — MOBILE-ONLY EXPERIENCE OVERRIDES
   Loaded separately from desktop CSS. These rules only affect
   viewports up to 900px and only enable the animated scene layout
   when mobile.js adds body.mobile-js-active.
   ========================================================= */

@media (max-width: 900px) {
  html,
  body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    background: #020202;
  }

  main,
  section,
  img,
  svg,
  iframe,
  spline-viewer {
    max-width: 100%;
  }

  .site-header {
    left: 50%;
    right: auto;
    width: calc(100% - 28px);
    padding: 14px 14px 12px;
    transform: translateX(-50%);
  }

  .site-header.nav-hidden {
    transform: translate(-50%, -110%);
  }

  .site-header.nav-visible,
  .site-header.is-scrolled {
    transform: translateX(-50%);
  }

  .brand {
    font-size: 11px;
    letter-spacing: .16em;
  }

  .main-nav {
    display: none;
  }

  .hero {
    min-height: 100svh;
    overflow: hidden;
  }

  .spline-hero {
    opacity: .66;
    transform: scale(1.08);
    mask-image: radial-gradient(
      circle at center,
      #000 8%,
      rgba(0,0,0,.9) 38%,
      rgba(0,0,0,.5) 68%,
      rgba(0,0,0,.04) 100%
    );
  }

  .hero-content {
    bottom: 29vh;
    width: min(620px, calc(100vw - 36px));
  }

  .hero-label {
    margin-bottom: 12px;
    font-size: 10px;
  }

  .hero-content h1 {
    font-size: clamp(18px, 4.8vw, 28px);
    line-height: 1.42;
  }

  .hero-sub {
    max-width: 34rem;
    font-size: clamp(10px, 2.6vw, 13px);
    line-height: 1.75;
  }

  .hero-actions {
    left: 50%;
    right: auto;
    bottom: max(28px, env(safe-area-inset-bottom));
    width: calc(100vw - 32px);
    transform: translateX(-50%);
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn {
    min-height: 42px;
    flex: 1 1 145px;
    max-width: 220px;
    padding-inline: 18px;
  }

  /* Fallback if JS/GSAP is unavailable: mobile scrolls normally. */
  .showcase-scroll,
  .bim-showcase .showcase-scroll,
  .process-3d {
    overflow-x: hidden;
  }

  .work-trust,
  .work-archive,
  .book-with-us {
    overflow: hidden;
  }

  .work-archive__shell,
  .book-with-us__shell {
    width: min(calc(100% - 32px), 760px);
    padding-top: clamp(5rem, 10vh, 8rem);
    padding-bottom: clamp(4rem, 8vh, 6rem);
  }

  .work-archive__header,
  .book-with-us__grid,
  .work-project__case,
  .work-project__proof,
  .work-project__results {
    grid-template-columns: 1fr;
  }

  .work-archive__title,
  .book-with-us__title {
    font-size: clamp(3.2rem, 15vw, 7rem);
  }

  .book-with-us__right,
  .book-card {
    width: 100%;
  }

  /* JS-enabled mobile horizontal showcase: sticky like desktop. */
  body.mobile-js-active .showcase-scroll,
  body.mobile-js-active .bim-showcase .showcase-scroll {
    height: 100svh;
    min-height: 540px;
    padding: 0;
    overflow: hidden;
  }

  body.mobile-js-active .HomeShowcase {
    position: relative !important;
    top: auto !important;
    width: 100vw;
    height: 100svh;
    min-height: 540px;
    overflow: hidden;
  }

  body.mobile-js-active .HomeShowcase__outerFrame {
    position: absolute;
    inset: 10px !important;
    overflow: hidden;
    border: 1px solid var(--showcase-line);
    border-radius: 12px;
    background:
      linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px),
      rgba(255,255,255,.022);
    background-size: 72px 72px;
    will-change: transform, opacity;
  }

  body.mobile-js-active .HomeShowcase__outerFrame::after {
    content: "Scroll to move sideways";
    position: absolute;
    left: 14px;
    bottom: 14px;
    z-index: 80;
    padding: 8px 10px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 999px;
    background: rgba(2,2,2,.66);
    color: rgba(255,255,255,.52);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .14em;
    text-transform: uppercase;
    pointer-events: none;
  }

  body.mobile-js-active .HomeShowcase__inner,
  body.mobile-js-active .bim-track {
    position: absolute;
    top: 0;
    left: 0;
    width: 6600px;
    height: 100%;
    padding: 0;
    display: block;
    will-change: transform;
  }

  body.mobile-js-active .mock,
  body.mobile-js-active .copy-card,
  body.mobile-js-active .center-copy,
  body.mobile-js-active .intro-title,
  body.mobile-js-active .path,
  body.mobile-js-active .bim-intro,
  body.mobile-js-active .bim-editorial,
  body.mobile-js-active .bim-case,
  body.mobile-js-active .bim-statement,
  body.mobile-js-active .bim-line-art,
  body.mobile-js-active .bim-close {
    position: absolute !important;
  }

  body.mobile-js-active .bim-intro { left: 54px; top: 160px; width: 320px; }
  body.mobile-js-active .bim-editorial--one { left: 820px; top: 150px; width: 420px; }
  body.mobile-js-active .bim-case--wwp { left: 1510px; top: 135px; }
  body.mobile-js-active .bim-case--glca { left: 1510px; top: 365px; }
  body.mobile-js-active .bim-statement { left: 2100px; top: 165px; width: 380px; }
  body.mobile-js-active .bim-line-art { left: 2100px; top: 390px; width: 360px; height: 130px; }
  body.mobile-js-active .bim-editorial--two { left: 2850px; top: 150px; width: 420px; }
  body.mobile-js-active .bim-case--momentum { left: 3560px; top: 135px; }
  body.mobile-js-active .bim-case--orynd { left: 3560px; top: 365px; }
  body.mobile-js-active .bim-close { left: 4700px; top: 170px; width: 360px; }

  body.mobile-js-active .bim-intro h2,
  body.mobile-js-active .bim-close h2,
  body.mobile-js-active .bim-editorial span,
  body.mobile-js-active .bim-statement h3 {
    font-size: 42px;
    letter-spacing: -.065em;
  }

  body.mobile-js-active .bim-case {
    width: 310px;
  }

  body.mobile-js-active .bim-case span {
    margin-bottom: 20px;
  }

  body.mobile-js-active .bim-case h3 {
    margin-bottom: 14px;
    font-size: 22px;
  }

  body.mobile-js-active .bim-case p {
    font-size: 12px;
    line-height: 1.55;
  }

  body.mobile-js-active .stage-label,
  body.mobile-js-active .bim-ruler,
  body.mobile-js-active .bim-index,
  body.mobile-js-active .bim-wordmark,
  body.mobile-js-active .nominee,
  body.mobile-js-active .cursor-replica {
    display: none !important;
  }

  /* JS-enabled mobile PROCESS scene: pinned cards, then C transition. */
  body.mobile-js-active .process-3d {
    min-height: 100svh;
    overflow: hidden;
    background: #020202;
  }

  body.mobile-js-active .process-scene {
    position: absolute;
    inset: 0;
    height: 100svh;
    min-height: 540px;
    padding: 0;
    overflow: hidden;
    perspective: 760px;
  }

  body.mobile-js-active .process-scene::after,
  body.mobile-js-active .process-void {
    display: block;
  }

  body.mobile-js-active .process-word {
    font-size: clamp(96px, 28vw, 260px);
    line-height: .78;
    letter-spacing: -.095em;
    transform-origin: 52% 50%;
  }

  body.mobile-js-active .process-void {
    width: clamp(88px, 22vw, 170px);
  }

  body.mobile-js-active .process-world-inside {
    position: absolute;
    inset: 0;
    height: 100%;
    min-height: 100svh;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    clip-path: circle(0% at var(--process-c-x) var(--process-c-y));
    -webkit-clip-path: circle(0% at var(--process-c-x) var(--process-c-y));
  }

  body.mobile-js-active .process-overlay {
    position: absolute;
    inset: 0;
    z-index: 8;
    width: 100%;
    min-height: 100svh;
    margin: 0;
    pointer-events: none;
    perspective: 900px;
  }

  body.mobile-js-active .process-copy {
    position: absolute;
    left: 50%;
    top: 14vh;
    width: min(560px, calc(100% - 32px));
    padding-top: 0;
    margin: 0;
    transform: translateX(-50%);
    pointer-events: auto;
  }

  body.mobile-js-active .process-copy p:not(.process-kicker) {
    font-size: 15px;
    line-height: 1.65;
  }

  body.mobile-js-active .process-cards {
    position: absolute;
    left: 0;
    top: 54%;
    width: max-content;
    margin: 0;
    padding: 0 14vw;
    display: flex;
    align-items: stretch;
    gap: 18px;
    pointer-events: none;
    will-change: transform;
  }

  body.mobile-js-active .process-card,
  body.mobile-js-active .process-card--left,
  body.mobile-js-active .process-card--right {
    position: relative;
    left: auto;
    top: auto;
    flex: 0 0 min(calc(100vw - 44px), 430px);
    width: min(calc(100vw - 44px), 430px);
    min-height: auto;
    max-height: calc(100svh - 132px);
    overflow: auto;
    justify-self: auto;
    padding: clamp(22px, 5vw, 30px);
    transform: none;
    opacity: 1;
    pointer-events: auto;
    will-change: transform, opacity;
  }

  body.mobile-js-active .process-card__main {
    margin: clamp(34px, 6vh, 56px) 0 clamp(24px, 4vh, 34px);
  }

  body.mobile-js-active .process-card__main h3 {
    max-width: 100%;
    font-size: clamp(38px, 10vw, 64px);
    line-height: .88;
  }

  body.mobile-js-active .process-card__main p,
  body.mobile-js-active .process-card__note-lines p {
    max-width: 100%;
    font-size: 14px;
    line-height: 1.6;
  }

  body.mobile-js-active .process-card__meta,
  body.mobile-js-active .process-card__actions,
  body.mobile-js-active .process-card__note-head {
    white-space: normal;
    letter-spacing: .16em;
  }

  body.mobile-js-active .process-card__note {
    padding: 16px;
  }

  body.mobile-js-active .work-reveal-preview__field {
    inset: 18vh 6vw;
  }

  body.mobile-js-active .work-reveal-preview__system {
    width: min(82vw, 620px);
    height: min(58vw, 390px);
  }

  body.mobile-js-active .work-reveal-preview__copy {
    left: 22px;
    right: 22px;
    bottom: 42px;
    max-width: none;
  }

  body.mobile-js-active .work-reveal-preview__statement {
    font-size: clamp(32px, 10vw, 64px);
  }
}

@media (max-width: 900px) and (hover: none) and (pointer: coarse) {
  .btn:hover,
  .bim-close a:hover,
  .process-card:hover,
  .process-card:hover .process-card__note,
  .book-card:hover {
    transform: none;
  }

  .main-nav:hover a:not(:hover) {
    opacity: 1;
  }

  .process-card:hover::before,
  .process-card:hover .process-card__note::after,
  .book-card:hover::before {
    opacity: 0;
  }
}