/* ============================================================================
   mobile.css · the phone composition
   ----------------------------------------------------------------------------
   Loads LAST, gated at (max-width: 899px), so it wins on a phone without a
   single !important.

   This is not the desktop layout narrowed. What the phone actually gets:

   · A DIFFERENT ARGUMENT. Desktop shows a four-bay elevation, which is
     unreadable at 390px. The phone climbs the building instead - one bay,
     arcade to roofline, driven by the one gesture a phone is best at.
   · A TACTILE MOMENT. Dusk-to-night is a drag, not a scroll side-effect.
     Direct manipulation is the thing touch does that a mouse cannot.
   · THUMB-FIRST NAVIGATION. Menu rises from the bottom; the action bar lives
     in the thumb arc and gets out of the way when you are reading.
   · A SHEET, NOT A PAGE JUMP. Enquiring does not throw you 6,000px down the
     document and leave you to scroll back.

   And the mechanics that decide whether any of it feels native:

   · svh / dvh / lvh, never bare vh. Mobile Safari and Chrome collapse the
     address bar on scroll, which changes vh mid-gesture and makes a 100vh hero
     jump. svh is the small (address bar shown) viewport, so nothing reflows.
   · env(safe-area-inset-*) on all four sides. Landscape puts the notch on the
     LEFT or RIGHT, which a bottom-only inset misses entirely.
   · content-visibility on the long sections, so a mid-range Android is not
     laying out 6,000px of document it cannot see.
   · touch-action declared on everything draggable, so a horizontal gesture
     never fights the page scroll.
   · :active states everywhere, because there is no hover to fall back on.
   ========================================================================= */

@media (max-width: 899px) {

  :root {
    --gutter: 1.35rem;
    --stack: clamp(3.25rem, 8svh, 5rem);
    --t-hero: clamp(3.1rem, 18vw, 5.6rem);
    --t-xl: clamp(2.1rem, 9.5vw, 3.2rem);
    --t-lg: clamp(1.65rem, 6.8vw, 2.3rem);
    --t-md: clamp(1.12rem, 4.4vw, 1.35rem);
    --t-body: 1.02rem;
    --t-label: 0.7rem;

    --bar-h: 62px;
    --safe-b: env(safe-area-inset-bottom, 0px);
    --safe-t: env(safe-area-inset-top, 0px);
    --safe-l: env(safe-area-inset-left, 0px);
    --safe-r: env(safe-area-inset-right, 0px);
  }

  .shell { padding-inline: max(var(--gutter), var(--safe-l)) max(var(--gutter), var(--safe-r)); }

  body {
    padding-bottom: calc(var(--bar-h) + var(--safe-b));
    /* stop the rubber-band from detaching the fixed chrome */
    overscroll-behavior-y: none;
  }

  /* Long, image-heavy sections are skipped until they approach the viewport.
     contain-intrinsic-size keeps the scrollbar honest so the page does not
     jump as they come in. */
  .inside, .lineage, .address, .enquire, .foot {
    content-visibility: auto;
    contain-intrinsic-size: auto 900px;
  }

  /* ======================================================================
     NAV · mark + toggle only
     ====================================================================== */
  .nav {
    grid-template-columns: 1fr auto;
    padding: 0.75rem max(var(--gutter), var(--safe-r)) 0.75rem max(var(--gutter), var(--safe-l));
    padding-top: calc(0.75rem + var(--safe-t));
  }
  .nav__links, .nav__cta { display: none; }

  .nav__toggle {
    display: grid; gap: 5px;
    justify-self: end; align-content: center; justify-items: end;
    width: 48px; height: 48px;
    -webkit-tap-highlight-color: transparent;
  }
  .nav__toggle-bar {
    display: block; height: 1.5px; width: 26px;
    background: currentColor;
    transition: transform var(--dur-tap) var(--ease-settle),
                width var(--dur-tap) var(--ease-settle);
  }
  .nav__toggle-bar:last-child { width: 18px; }
  .nav__toggle.is-open .nav__toggle-bar:first-child { transform: translateY(3.25px) rotate(45deg); }
  .nav__toggle.is-open .nav__toggle-bar:last-child  { width: 26px; transform: translateY(-3.25px) rotate(-45deg); }

  /* ======================================================================
     MENU · rises from the thumb side
     ====================================================================== */
  .menu {
    place-items: end stretch;
    transition: opacity 0.32s var(--ease-swing), visibility 0.32s;
  }
  .menu__inner {
    text-align: left;
    padding: 2.25rem max(var(--gutter), var(--safe-r))
             calc(2.25rem + var(--safe-b)) max(var(--gutter), var(--safe-l));
    transform: translateY(12%);
    transition: transform 0.46s var(--ease-settle);
  }
  .menu.is-open .menu__inner { transform: translateY(0); }
  .menu__arches { top: auto; bottom: 0; height: 40%; }

  .menu__list { gap: 0; }
  .menu__list li + li { border-top: 1px solid color-mix(in oklab, var(--bone) 14%, transparent); }
  .menu__list a {
    display: flex; align-items: baseline; gap: 1rem;
    padding: 0.95rem 0;
    min-height: 54px;
    -webkit-tap-highlight-color: transparent;
  }
  .menu__list .display { font-size: 1.9rem; opacity: 1; }
  .menu__list a:active { opacity: 0.55; }
  /* At 375px this stranded "Lauderdale" on its own line. Balance evens the two
     lines instead of forcing a break that would be wrong on a wider phone. */
  .menu__foot { margin-top: 1.6rem; }

  /* ======================================================================
     ACTION BAR · thumb arc, and it yields while you read
     ====================================================================== */
  .thumbbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    position: fixed; left: 0; right: 0; bottom: 0;
    z-index: var(--z-nav);
    background: color-mix(in oklab, var(--shadow) 90%, transparent);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    backdrop-filter: blur(16px) saturate(1.2);
    border-top: 1px solid color-mix(in oklab, var(--bone) 16%, transparent);
    padding-bottom: var(--safe-b);
    padding-inline: var(--safe-l) var(--safe-r);
    transform: translateY(0);
    transition: transform 0.34s var(--ease-settle);
  }
  /* hidden while scrolling down (you are reading), back on the way up
     (you are looking for something) */
  body.bar-away .thumbbar { transform: translateY(calc(100% + var(--safe-b))); }
  body.menu-open .thumbbar,
  body.sheet-open .thumbbar { transform: translateY(calc(100% + var(--safe-b))); }

  .thumbbar a, .thumbbar button {
    min-height: var(--bar-h);
    display: flex; align-items: center; justify-content: center;
    gap: 0.5rem;
    color: var(--bone);
    font-size: var(--t-label);
    font-variation-settings: "wdth" 112, "wght" 500;
    letter-spacing: 0.16em; text-transform: uppercase;
    -webkit-tap-highlight-color: transparent;
    transition: background var(--dur-tap) var(--ease-settle);
  }
  .thumbbar a:active, .thumbbar button:active {
    background: color-mix(in oklab, var(--bone) 14%, transparent);
  }
  .thumbbar__sep { width: 1px; background: color-mix(in oklab, var(--bone) 16%, transparent); }
  .thumbbar__price { color: color-mix(in oklab, var(--bone) 66%, transparent); }
  .thumbbar__share { width: 60px; }
  .thumbbar__share svg { width: 17px; height: 17px; }

  /* ======================================================================
     HERO · portrait plate, type in the lower third
     ====================================================================== */
  .hero {
    min-height: 100svh;
    grid-template-rows: 1fr auto;
    align-content: end;
  }
  .hero__img img { object-position: 50% 44%; }
  .hero__scrim {
    background: linear-gradient(to bottom,
      color-mix(in oklab, var(--shadow) 58%, transparent) 0%,
      color-mix(in oklab, var(--shadow) 14%, transparent) 26%,
      color-mix(in oklab, var(--shadow) 52%, transparent) 62%,
      color-mix(in oklab, var(--shadow) 90%, transparent) 100%);
  }
  .hero__type {
    align-self: end;
    text-align: left;
    padding-bottom: 4.5rem; padding-top: 0;
  }
  .hero__word { letter-spacing: -0.03em; }
  .hero__city { display: none; }
  /* stack the gloss rather than letting it wrap mid-phrase */
  .hero__gloss {
    display: grid; justify-items: start; gap: 0.3rem;
    line-height: 1.35;
  }
  .hero__sep { display: none; }
  .hero__gloss span:last-child { font-size: 0.9em; }
  .hero__cue { display: none; }
  /* the action bar already carries the price, permanently and in the thumb
     arc. Repeating it here only pushed the hero's last row under the bar. */
  .hero__price { display: none; }

  /* ======================================================================
     THE ASCENT · phone only
     ====================================================================== */
  .ascent {
    display: block;
    position: relative;
    /* the scroll distance IS the height of the building */
    height: 340svh;
    background: var(--shadow);
  }
  .ascent__stage {
    position: sticky; top: 0;
    height: 100svh;
    overflow: hidden;
    isolation: isolate;
  }
  .ascent__plate { position: absolute; inset: 0; }
  .ascent__plate img {
    width: 100%;
    height: 175%;               /* taller than the stage, so there is travel */
    object-fit: cover;
    object-position: 50% 0%;
    transform: translate3d(0, var(--ascent-y, -75%), 0);
    will-change: transform;
  }

  /* Where the engine has scroll-driven animations, the pan is handed to the
     compositor: it keeps moving smoothly even while the main thread is busy
     decoding the next image, which is exactly when a rAF pan would stutter on
     a mid-range phone. JS notices this is available and stops writing the
     transform, so the two never fight. */
  @supports (animation-timeline: view()) {
    .ascent { view-timeline-name: --asc; view-timeline-axis: block; }
    .ascent__plate img {
      animation: ascend linear both;
      animation-timeline: --asc;
      animation-range: contain 0% contain 100%;
    }
    /* The plate is 175% of the stage, so 75% is the full travel. We start at
       the BOTTOM of the image (the entry steps) and rise to the top (the
       roofline) - the section is called the ascent because you climb it. */
    @keyframes ascend {
      from { transform: translate3d(0, -75%, 0); }
      to   { transform: translate3d(0, 0, 0); }
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .ascent__plate img { animation: none; transform: translate3d(0, -46%, 0); }
  }
  .ascent__scrim {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom,
      color-mix(in oklab, var(--shadow) 62%, transparent) 0%,
      transparent 26%, transparent 52%,
      color-mix(in oklab, var(--shadow) 88%, transparent) 100%);
  }

  .ascent__storeys {
    position: absolute;
    left: max(var(--gutter), var(--safe-l));
    right: max(var(--gutter), var(--safe-r));
    bottom: calc(var(--bar-h) + var(--safe-b) + 1.5rem);
    display: grid;
  }
  .storey {
    grid-area: 1 / 1;
    color: var(--bone);
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.5s var(--ease-settle), transform 0.5s var(--ease-settle);
  }
  .storey.is-on { opacity: 1; transform: translateY(0); }
  .storey__n { display: block; color: var(--amber); margin-bottom: 0.5rem; }
  .storey__t { display: block; font-size: clamp(2rem, 10vw, 3rem); line-height: 1; }
  .storey__d {
    display: block; margin-top: 0.5rem;
    font-size: 0.95rem;
    color: color-mix(in oklab, var(--bone) 78%, transparent);
    max-width: 26ch;
  }

  .ascent__rail {
    position: absolute;
    right: max(var(--gutter), var(--safe-r));
    top: 22svh; bottom: 30svh;
    width: 2px;
    background: color-mix(in oklab, var(--bone) 22%, transparent);
  }
  .ascent__fill {
    position: absolute; inset: 0 0 auto 0;
    height: var(--ascent-p, 0%);
    background: var(--amber);
  }

  /* ======================================================================
     TWILIGHT · drag to move the building through its evening
     ====================================================================== */
  .twilight { display: block; padding-block: var(--stack) 0; }
  .tw {
    position: relative;
    margin-top: 1.6rem;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    /* a horizontal drag scrubs; a vertical drag still scrolls the page */
    touch-action: pan-y;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
  }
  .tw img { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
  .tw__top {
    position: absolute; inset: 0;
    width: 100%;
    clip-path: inset(0 0 0 var(--tw, 55%));
  }
  .tw__top img { position: absolute; inset: 0; }

  /* the real control is a range input, kept invisible but focusable, so the
     thing works with a keyboard and a screen reader as well as a thumb */
  .tw__range {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    opacity: 0;
    margin: 0;
    -webkit-appearance: none; appearance: none;
    background: transparent;
    touch-action: pan-y;
  }
  .tw__range:focus-visible ~ .tw__handle {
    box-shadow: 0 0 0 3px var(--shadow), 0 0 0 6px var(--amber);
  }
  .tw__handle {
    position: absolute; top: 50%;
    left: var(--tw, 55%);
    transform: translate(-50%, -50%);
    width: 52px; height: 52px;
    border-radius: 50%;
    display: grid; place-items: center;
    color: var(--shadow);
    background: color-mix(in oklab, var(--bone) 92%, transparent);
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
    pointer-events: none;
  }
  .tw__handle::before {
    content: ""; position: absolute;
    top: -50vh; bottom: -50vh; left: 50%;
    width: 1px; margin-left: -0.5px;
    background: color-mix(in oklab, var(--bone) 55%, transparent);
  }
  .tw__tag {
    position: absolute; bottom: 1rem;
    color: var(--bone);
    text-shadow: 0 1px 8px rgb(0 0 0 / 0.7);
    pointer-events: none;
  }
  .tw__tag--l { left: 1rem; }
  .tw__tag--r { right: 1rem; }

  /* ======================================================================
     STATEMENT / MARQUEE / APERTURE
     ====================================================================== */
  .statement__grid { grid-template-columns: 1fr; gap: 1.9rem; }
  .statement__head { position: static; font-size: clamp(2.5rem, 12.5vw, 3.8rem); }
  .statement__facts { grid-column: 1; grid-template-columns: repeat(2, 1fr); gap: 1.4rem 1rem; }
  .statement__facts dd { font-size: 1.7rem; }

  .marquee__item { font-size: clamp(2.5rem, 14vw, 4.2rem); }

  /* A portrait viewport makes a shallow arch read as a bubble. The rise goes
     up so the shape is recognisably the building's arch, not a rounded box. */
  .aperture__frame {
    height: 62svh;
    clip-path: inset(0 5% 0 5% round 50% 50% 0 0 / 30% 30% 0 0);
  }
  .aperture__frame img { object-position: 54% 56%; }

  .notes__list { grid-template-columns: 1fr; gap: 1.9rem; }

  /* ======================================================================
     RESIDENCES · a sequence with an expandable detail, not a 4-col table
     ====================================================================== */
  .bays__plate { display: none; }
  .bays__list {
    display: grid; grid-template-columns: 1fr;
    border-top: 0;
    padding-inline: max(var(--gutter), var(--safe-l)) max(var(--gutter), var(--safe-r));
    gap: 0.8rem;
  }
  .bay + .bay { border-left: 0; }
  .bay {
    border: 1px solid var(--rule);
    border-radius: 30% 30% 6px 6px / 8% 8% 6px 6px;
    overflow: hidden;
    transition: border-color var(--dur-tap) var(--ease-settle);
  }
  .bay button {
    grid-template-columns: auto 1fr auto;
    align-items: center; gap: 1rem;
    padding: 1.15rem 1.25rem;
    min-height: 78px;
    -webkit-tap-highlight-color: transparent;
  }
  .bay button:active { background: color-mix(in oklab, var(--amber) 16%, transparent); }
  .bay.is-active { border-color: var(--amber); }
  .bay.is-active button { background: color-mix(in oklab, var(--amber) 12%, transparent); }
  .bay__n { font-size: 1.95rem; }
  .bay__price { justify-self: end; text-align: right; }
  .bays__note { padding-inline: max(var(--gutter), var(--safe-l)); }

  /* ======================================================================
     INSIDE · a snap reel, the gesture a phone does better than a mouse
     ====================================================================== */
  .plates {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 76vw;
    gap: 0.7rem;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--gutter);
    padding-inline: max(var(--gutter), var(--safe-l)) max(var(--gutter), var(--safe-r));
    padding-bottom: 0.5rem;
    align-items: start;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .plates::-webkit-scrollbar { display: none; }
  .plates--second { grid-template-columns: none; margin-top: 0.7rem; }
  .plate {
    scroll-snap-align: center;
    /* never let a flick skip a card - each swipe advances exactly one */
    scroll-snap-stop: always;
  }
  .plate img, .plate--tall img { height: 92vw; max-height: 60svh; }

  .reel-count {
    display: flex; gap: 0.5rem; align-items: center;
    padding-inline: max(var(--gutter), var(--safe-l));
    margin-top: 0.9rem;
  }
  .reel-count__bar {
    flex: 1; height: 2px;
    background: color-mix(in oklab, currentColor 20%, transparent);
    position: relative; overflow: hidden;
  }
  .reel-count__bar i {
    position: absolute; inset: 0 auto 0 0;
    width: var(--reel-p, 25%);
    background: var(--amber);
    transition: width 0.28s var(--ease-settle);
  }
  .reel-count__n { font-variant-numeric: tabular-nums; color: var(--ink-faint); }

  /* ======================================================================
     LINEAGE / ADDRESS
     ====================================================================== */
  .lineage__list { grid-template-columns: 1fr; gap: 2.4rem; }
  .lin img { height: 76vw; max-height: 420px; border-radius: 50% 50% 2px 2px / 24% 24% 2px 2px; }

  .address__grid { grid-template-columns: 1fr; gap: 2rem; }
  .address__plate { order: -1; }
  .address__plate img { height: 84vw; max-height: 460px; border-radius: 50% 50% 2px 2px / 26% 26% 2px 2px; }
  .address__near li { padding: 1.05rem 0; min-height: 52px; }

  /* ======================================================================
     ENQUIRE · the section still exists for no-JS and for desktop parity,
     but on a phone the sheet is the real path
     ====================================================================== */
  .enquire__grid { grid-template-columns: 1fr; gap: 2.2rem; }
  .btn { justify-self: stretch; text-align: center; min-height: 54px; }
  /* 16px minimum or iOS zooms the viewport on focus and never zooms back */
  .field input, .field textarea { font-size: 16px; min-height: 54px; }

  /* ======================================================================
     SHEET · enquiry without losing your place in the document
     ====================================================================== */
  .sheet { display: block; }
  .sheet__scrim {
    position: fixed; inset: 0;
    z-index: calc(var(--z-nav) + 1);
    background: color-mix(in oklab, var(--shadow) 62%, transparent);
    opacity: 0; visibility: hidden;
    transition: opacity 0.3s var(--ease-swing), visibility 0.3s;
  }
  .sheet__panel {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: calc(var(--z-nav) + 2);
    background: var(--bone-lift);
    color: var(--shadow);
    border-radius: 22px 22px 0 0;
    padding: 0.5rem max(var(--gutter), var(--safe-r))
             calc(1.25rem + var(--safe-b)) max(var(--gutter), var(--safe-l));
    max-height: 92svh;
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateY(101%);
    transition: transform 0.42s var(--ease-settle);
    box-shadow: 0 -12px 40px rgb(0 0 0 / 0.3);
    /* raised by the on-screen keyboard, measured from visualViewport */
    padding-bottom: calc(1.25rem + var(--safe-b) + var(--kb, 0px));
  }
  body.sheet-open .sheet__scrim { opacity: 1; visibility: visible; }
  body.sheet-open .sheet__panel { transform: translateY(0); }
  body.sheet-open { overflow: hidden; }

  .sheet__grab {
    width: 40px; height: 4px; border-radius: 2px;
    background: color-mix(in oklab, var(--shadow) 24%, transparent);
    margin: 0.5rem auto 1rem;
  }
  .sheet__head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
  .sheet__title { font-size: 1.5rem; }
  .sheet__close {
    min-width: 48px; min-height: 48px;
    display: grid; place-items: center;
    margin-right: -0.6rem;
    -webkit-tap-highlight-color: transparent;
  }
  .sheet__sub { color: color-mix(in oklab, var(--shadow) 62%, var(--bone)); font-size: 0.92rem; margin-top: 0.3rem; }
  .sheet .form { margin-top: 1.4rem; gap: 1.25rem; }
  .sheet .field input, .sheet .field textarea { border-bottom-color: color-mix(in oklab, var(--shadow) 22%, transparent); }
  .sheet__call {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem;
    margin-top: 1.1rem; padding-top: 1.1rem;
    border-top: 1px solid color-mix(in oklab, var(--shadow) 14%, transparent);
  }
  .sheet__call a {
    min-height: 52px; display: flex; align-items: center; justify-content: center;
    gap: 0.5rem;
    border: 1px solid color-mix(in oklab, var(--shadow) 22%, transparent);
    border-radius: 40% 40% 6px 6px / 26% 26% 6px 6px;
    font-size: var(--t-label);
    font-variation-settings: "wdth" 112, "wght" 500;
    letter-spacing: 0.16em; text-transform: uppercase;
    -webkit-tap-highlight-color: transparent;
  }
  .sheet__call a:active { background: color-mix(in oklab, var(--shadow) 8%, transparent); }

  /* ======================================================================
     FOOTER
     ====================================================================== */
  .foot__word .display { font-size: clamp(2.7rem, 20vw, 5.2rem); }
  .foot__grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .foot__legal { flex-direction: column; align-items: flex-start; gap: 1.1rem; }
}

/* ==========================================================================
   LANDSCAPE PHONE · a real state, not an accident.
   Short and wide: full-height heroes become unusable, and the notch moves to
   the side. Cap the tall things and inset horizontally.
   ========================================================================== */
@media (max-width: 899px) and (orientation: landscape) and (max-height: 560px) {
  .hero { min-height: 108svh; }
  .hero__type { padding-bottom: 3rem; }
  .hero__word { font-size: clamp(2.4rem, 9vw, 3.6rem); }
  .ascent { height: 300svh; }
  .storey__t { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .storey__d { display: none; }
  .tw { aspect-ratio: 16 / 10; }
  .plate img, .plate--tall img { height: 52svh; }
  .aperture__frame { height: 78svh; }
  .sheet__panel { max-height: 96svh; }
  .plates { grid-auto-columns: 46vw; }
}

/* ==========================================================================
   Desktop keeps none of the phone-only furniture.
   ========================================================================== */
@media (min-width: 900px) {
  .thumbbar, .ascent, .twilight, .sheet, .reel-count { display: none; }
}

@media (max-width: 899px) {
  /* the chain sits between the argument and the figures, where the copy
     actually describes it */
  .chain { grid-column: 1; margin-top: 0.5rem; }
  .chain__svg { max-height: 34svh; }
}

@media (max-width: 899px) {
  .bay__detail { padding-inline: 1.25rem; }
  .bay.is-open .bay__detail { padding-bottom: 1.25rem; }
  .bay__spec { grid-template-columns: repeat(4, 1fr); }
  .bay__cta { justify-self: stretch; justify-content: center; border: 1px solid var(--rule); border-radius: 40% 40% 5px 5px / 26% 26% 5px 5px; }
}

/* ---------------------------------------------------------------------------
   PLANS · phone
   A 2,456-wide drawing inside a 390px screen is not a drawing, it is a texture.
   So the phone gets the plan in a pinch-free horizontal scroller at a legible
   width, with the scroll cue stated rather than left to be discovered.
   ------------------------------------------------------------------------- */
@media (max-width: 899px) {

  .plans__tabs { grid-template-columns: repeat(4, 1fr); }
  .plans__tabs button { padding: 0.75rem 0.5rem; gap: 0.22rem; align-items: center; text-align: center; }
  .plans__ts { display: none; }

  .plans__head { grid-template-columns: 1fr; gap: 1.4rem; }

  .plan__cap { gap: 0.5rem; }
  .plan__wh { margin-left: 0; flex-basis: 100%; }

  .plan__sheet {
    padding: 0.6rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }
  .plan__sheet::-webkit-scrollbar { display: none; }
  .plan__sheet img { width: 760px; max-width: none; }

  /* the affordance, said out loud rather than implied */
  .plan__cap::after {
    content: "Scroll the drawing sideways";
    flex-basis: 100%;
    font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--amber-deep); font-weight: 500;
  }

  .plans__dl { width: 100%; justify-content: center; flex-wrap: wrap; }
}