/* STEPWELL landing: full-screen section drawing (canvas) + fixed editorial band at the bottom + gate handles. */
:root { --band-h: clamp(258px, 34vh, 340px); --ruler-h: 30px; }
@media (max-width: 720px) { :root { --band-h: min(47vh, 400px); } }
html.no-3d .sw-band::after { display: none; }

html.has-3d, html.has-3d body { height: 100%; overflow: hidden; overscroll-behavior: none; }
html.has-3d body { touch-action: none; }
body.landing { background: var(--paper); }
html.has-3d body.landing::after { opacity: .28; } /* the canvas carries its own paper tooth */

#well { position: fixed; inset: 0; width: 100vw; height: 100vh; height: 100dvh; display: block; z-index: 0; outline: none; }
html.no-3d #well { display: none; }

/* loading veil */
.sw-load { position: fixed; inset: 0; z-index: 50; background: var(--paper); display: grid; place-items: center; transition: opacity .6s var(--ease), visibility 0s .6s; }
.sw-load span { width: 168px; height: 9px; position: relative; border-bottom: 1px solid var(--ink);
  background: repeating-linear-gradient(to right, rgba(22, 19, 15, .5) 0 1px, transparent 1px 12px) bottom / 100% 5px no-repeat; }
.sw-load span::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--water); transform-origin: left; transform: scaleX(var(--p, .08)); transition: transform .35s var(--ease); }
@keyframes sw-load { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
@keyframes sw-load { to { transform: translateX(100%); } }
html.ready .sw-load, html.no-3d .sw-load { opacity: 0; visibility: hidden; }

/* nav sits on the drawing */
.landing .sw-nav.is-overlay { z-index: 30; }
/* a soft paper fade behind the navbar keeps the logo, links and CA chip legible over the drawing */
html.has-3d .landing .sw-nav.is-overlay::before {
  content: ''; position: absolute; left: 0; right: 0; top: 0; height: calc(var(--nav-h) + 34px); z-index: -1; pointer-events: none;
  background: linear-gradient(to bottom, rgba(239, 230, 214, .94) 0, rgba(239, 230, 214, .82) 45%, rgba(239, 230, 214, 0) 100%);
}
.landing .sw-nav .sw-sound { width: 34px; height: 34px; border-color: transparent; }
@media (pointer: coarse) { .landing .sw-nav .sw-sound { width: 40px; height: 40px; } }

/* ── static key art (no WebGL) ─────────────────────────── */
.sw-static-art { display: none; margin: 0; }
html.no-3d .sw-static-art { display: block; padding: calc(var(--nav-h) + 12px) var(--gutter) 0; max-width: 1400px; margin: 0 auto; }
html.no-3d .sw-static-art img { width: 100%; height: auto; }

/* ── editorial band ────────────────────────────────────── */
.sw-band {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  height: var(--band-h);
  padding: 0 var(--gutter) max(18px, env(safe-area-inset-bottom));
  background: var(--paper);
  display: flex; flex-direction: column;
  transition: height .55s var(--ease);
}
/* the drawing fades into the band above it, so the ruler and its labels always sit on paper */
html.has-3d .sw-band::after { content: ''; position: absolute; left: 0; right: 0; top: -44px; height: 44px; pointer-events: none;
  background: linear-gradient(to bottom, rgba(239, 230, 214, 0), rgba(239, 230, 214, .9) 70%, var(--paper)); }
.gate-count { display: none; }
.sw-band::before { content: ''; position: absolute; left: var(--gutter); right: var(--gutter); top: 30px; height: 1px; background: var(--ink); opacity: .85; }

/* section ruler: a scale bar with the six parts as major ticks */
.sw-ruler { position: relative; height: var(--ruler-h); margin-top: 0; flex: none; }
.sw-ruler-scale { position: absolute; left: 0; right: 0; top: 22px; height: 8px;
  background-image: repeating-linear-gradient(to right, var(--ink) 0 1px, transparent 1px calc(100% / 50));
  opacity: .45; }
.sw-ruler-mark { position: absolute; top: 14px; left: 0; width: 2px; height: 17px; background: var(--water); transform: translateX(0); will-change: transform; }
.sw-ruler-mark::after { content: ''; position: absolute; left: -4px; top: -6px; border: 5px solid transparent; border-top-color: var(--water); }
.sw-ruler-names { position: absolute; inset: 0; }
.sw-ruler-names button {
  position: absolute; top: 0; transform: translateX(-50%);
  border: 0; background: none; padding: 2px 4px; cursor: pointer;
  font: 600 10px/1 var(--f-body); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3);
  white-space: nowrap;
}
.sw-ruler-names button::after { content: ''; position: absolute; left: 50%; top: 16px; width: 1px; height: 14px; background: var(--ink); }
.sw-ruler-names button:first-child { transform: none; }
.sw-ruler-names button:first-child::after { left: 4px; }
.sw-ruler-names button:last-child { transform: translateX(-100%); }
.sw-ruler-names button:last-child::after { left: auto; right: 4px; }
.sw-ruler-names button[aria-current='true'] { color: var(--ink); }
.sw-ruler-names button:hover { color: var(--water-d); }

.sw-parts { position: relative; flex: 1; min-height: 0; }
.part {
  position: absolute; inset: 0;
  display: grid; grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr) minmax(0, 1fr); column-gap: clamp(20px, 3vw, 48px);
  align-content: start; grid-template-rows: auto 1fr;
  padding-top: clamp(14px, 2.4vh, 26px);
  visibility: hidden; pointer-events: none;
}
.part .kicker { grid-column: 1 / -1; margin: 0 0 10px; color: var(--ink-2); }
.part .ttl {
  grid-column: 1; align-self: start;
  font-size: clamp(36px, 4.5vw, 78px); line-height: .94; letter-spacing: -.02em;
  font-weight: 800; font-stretch: 125%; font-variation-settings: 'wdth' 125;
  margin: 0; max-width: 11ch;
}
.part .cols { display: contents; }
.part .cols > * { margin: 4px 0 0; font-size: 15px; line-height: 1.52; color: var(--ink-2); max-width: 38ch; }
.part .cols > div > p { margin: 0 0 .7em; }
html.has-3d .part.is-active { visibility: visible; pointer-events: auto; }

/* clean swap: rise + fade, title first, columns staggered */
html.has-3d .part > * { opacity: 0; transform: translateY(14px); transition: opacity .38s var(--ease), transform .55s var(--ease); }
html.has-3d .part.is-active > * { opacity: 1; transform: none; }
html.has-3d .part.is-active .ttl { transition-delay: .05s; }
html.has-3d .part.is-active .cols > * { transition: opacity .45s var(--ease), transform .6s var(--ease); }
html.has-3d .part.is-active .cols > :first-child { transition-delay: .14s; }
html.has-3d .part.is-active .cols > :last-child { transition-delay: .22s; }
html.has-3d .part:not(.is-active) .cols > * { opacity: 0; transform: translateY(14px); transition: opacity .2s, transform .3s; }

.only-static { display: none; }
html.no-3d .only-3d { display: none !important; }
html.no-3d .only-static { display: inline; }

.sw-skip { border: 0; background: none; padding: 0; font: inherit; color: var(--ink); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.sw-skip:hover { color: var(--water-d); }
@media (pointer: coarse) { .sw-skip { padding: 11px 6px; margin: -11px -6px; } }

/* part 2: shapes */
.sw-shapes { margin: 2px 0 12px; }
.sw-shapes > button { font: 600 13px/1 var(--f-body); letter-spacing: .02em; min-width: 72px; cursor: pointer; }
.sw-shapes > button[aria-checked='true'] { background: var(--ink); color: var(--paper); }
.shape-note { min-height: 4.6em; }

/* part 3: quote + NYSE plate */
.sw-quote { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin: 0 0 8px !important; color: var(--ink) !important; }
.sw-quote .sym { font: 600 11px/1 var(--f-body); letter-spacing: .14em; color: var(--ink-2); }
.sw-quote b { font: 800 28px/1 var(--f-display); font-stretch: 112%; font-variation-settings: 'wdth' 112; color: var(--ink); }
.sw-quote .chg { font-size: 13px; font-weight: 600; color: var(--water-d); }
.sw-quote .chg.neg { color: var(--ink); }
.sw-plate { display: inline-flex; align-items: center; gap: 10px; padding: 8px 12px; border: 1.5px solid var(--ink); margin: 0 0 10px !important;
  font: 700 12px/1.2 var(--f-body) !important; letter-spacing: .06em; text-transform: uppercase; color: var(--ink) !important; max-width: none !important; }
.sw-plate i { width: 8px; height: 8px; border-radius: 50%; background: var(--water); box-shadow: 0 0 0 3px rgba(15, 138, 134, .18); animation: sw-pulse 2s ease-in-out infinite; }
.sw-plate.open i { background: var(--ink); }
@keyframes sw-pulse { 50% { box-shadow: 0 0 0 6px rgba(15, 138, 134, 0); } }

/* part 4: ladder labels */
.sw-ladders { list-style: none; margin: 2px 0 8px; padding: 0; display: grid; gap: 5px; }
.sw-ladders li { display: flex; align-items: center; gap: 10px; font-size: 13px; line-height: 1.3; color: var(--ink-2); }
.sw-ladders b { display: inline-grid; place-items: center; width: 20px; height: 20px; border: 1px solid var(--ink); font: 700 11px/1 var(--f-body); color: var(--ink); flex: none; }
.sw-ladders li.pub b { background: var(--water); border-color: var(--water); color: var(--paper); }
.sw-ladders li.pub span { color: var(--ink); }

/* part 5: the bottom */
.part[data-part='5'] .ttl { max-width: 9ch; }
.cols-end .end-a { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; max-width: none !important; }
.cols-end .end-b { display: flex; flex-wrap: wrap; gap: 10px; align-content: flex-start; max-width: none !important; }
.end-launch { margin: 0 !important; }
.end-launch .label { color: var(--ink); font-size: 11px; }
.sw-cd.sw-countdown { background: var(--paper); }
.sw-cd.sw-countdown .c { min-width: 66px; padding: 10px 12px; }
.sw-cd.sw-countdown b { font-size: 30px; }
.sw-ca-row .sw-ca-addr { font-size: 12px; padding: 7px 9px; }
.end-social { width: 100%; margin: 6px 0 0 !important; font-size: 14px; color: var(--ink-2); }

.sw-scrollhint { position: absolute; right: var(--gutter); bottom: max(14px, env(safe-area-inset-bottom)); margin: 0; display: flex; align-items: center; gap: 8px;
  font: 600 10px/1 var(--f-body); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); transition: opacity .4s; }
.sw-scrollhint i { width: 34px; height: 1px; background: var(--ink-3); position: relative; overflow: hidden; }
.sw-scrollhint i::after { content: ''; position: absolute; inset: 0; background: var(--water); animation: sw-load 1.8s var(--ease) infinite; }
html.at-end .sw-scrollhint, html.in-gate .sw-scrollhint { opacity: 0; }

/* ── gate: two handles on the right edge ───────────────── */
.sw-gate { position: fixed; right: 0; top: 0; bottom: var(--band-h); width: 230px; z-index: 25; pointer-events: none; opacity: 0; transition: opacity .5s var(--ease); }
html.has-3d.in-gate .sw-gate, html.has-3d.at-gate .sw-gate { opacity: 1; }
html.has-3d.in-gate .sw-gate .sw-handle, html.has-3d.at-gate .sw-gate .sw-handle { pointer-events: auto; }
html.no-3d .sw-gate { display: none; }
.sw-gate-track { position: absolute; right: 37px; top: 0; bottom: 0; width: 1px; }
.sw-gate-track::before { content: ''; position: absolute; left: 0; width: 1px; top: var(--t0, 30%); bottom: var(--b0, 30%); background: var(--ink); opacity: .55; }
.sw-gate-fill { position: absolute; left: -1px; width: 3px; top: 0; height: 0; background: var(--water); transition: none; }
.sw-gate-ticks { position: absolute; right: 31px; width: 13px; height: 1px; background: var(--ink); opacity: .55; }
.sw-handle {
  position: absolute; right: 16px; top: 0; width: 44px; height: 26px; margin-top: -13px;
  border: 1.5px solid var(--ink); border-radius: 2px; background: var(--paper); color: var(--ink);
  cursor: grab; touch-action: none; padding: 0; display: grid; place-items: center;
  box-shadow: 0 2px 0 rgba(22, 19, 15, .9);
  transition: background .2s, color .2s, transform .2s var(--ease);
}
/* a larger invisible grab area for fingers */
.sw-handle::before { content: ''; position: absolute; inset: -9px -12px; }
.sw-handle:hover, .sw-handle.drag { background: var(--ink); color: var(--paper); }
.sw-handle.drag { cursor: grabbing; transform: scale(1.06); }
.sw-grip { width: 16px; height: 7px; border-top: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; }
.sw-hl { position: absolute; right: 54px; top: 50%; transform: translateY(-50%); white-space: nowrap; font: 600 10px/1 var(--f-body); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); pointer-events: none; }
.sw-gate-hint { position: absolute; right: 70px; margin: 0; transform: translateY(-50%); font: 600 11px/1.2 var(--f-body); letter-spacing: .12em; text-transform: uppercase; color: var(--ink); text-align: right; transition: opacity .4s; white-space: nowrap; }
.sw-gate-hint span { background: var(--paper); padding: 5px 8px; border: 1px solid var(--rule); }
.sw-gate.touched .sw-gate-hint { opacity: 0; }
@media (prefers-reduced-motion: no-preference) {
  .sw-gate:not(.touched) .sw-handle[data-h='hi'] { animation: sw-nudge-up 2.2s var(--ease) infinite 1.2s; }
  .sw-gate:not(.touched) .sw-handle[data-h='lo'] { animation: sw-nudge-dn 2.2s var(--ease) infinite 1.2s; }
}
@keyframes sw-nudge-up { 0%, 60%, 100% { transform: none; } 30% { transform: translateY(-7px); } }
@keyframes sw-nudge-dn { 0%, 60%, 100% { transform: none; } 30% { transform: translateY(7px); } }

/* ── small screens ─────────────────────────────────────── */
@media (max-width: 960px) {
  .part { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: auto auto 1fr; }
  .part .ttl { grid-column: 1 / -1; margin-bottom: 12px; max-width: 16ch; }
  .part .cols > * { max-width: none; }
}
@media (max-width: 720px) {
  .sw-band { padding-bottom: max(12px, env(safe-area-inset-bottom)); }
  .sw-ruler-names button { font-size: 0; padding: 0 6px; min-width: 40px; height: var(--ruler-h); }
  .sw-ruler-names button[aria-current='true'] { height: auto; min-width: 0; }
  .sw-ruler-names button[aria-current='true'] { font-size: 9px; }
  .part { grid-template-columns: minmax(0, 1fr); grid-template-rows: none; align-content: start; padding-top: 12px; row-gap: 0; }
  .sw-gate-hint { display: none; }
  .sw-hl { display: none; }
  .gate-count { display: inline-block; margin-top: 8px; font: 600 11px/1 var(--f-body); letter-spacing: .14em; text-transform: uppercase; color: var(--water-d); }
  .gate-count:empty { display: none; }
  .part .kicker { margin-bottom: 7px; font-size: 10px; }
  .part .ttl { font-size: clamp(27px, 8.4vw, 40px); margin-bottom: 10px; }
  .part .cols > * { font-size: 13.5px; line-height: 1.45; margin-top: 0; }
  .part .cols > * + * { margin-top: 6px; }
  .part[data-part='1'] .cols > :last-child, .part[data-part='0'] .cols > :first-child { display: none; }
  .part[data-part='2'] .cols > :last-child, .part[data-part='3'] .cols > div:first-child > p:last-child, .part[data-part='3'] .cols > div:last-child > p:last-child { display: none; }
  .part[data-part='4'] .cols > p { display: none; }
  .sw-ladders { gap: 3px; } .sw-ladders li { font-size: 12px; }
  .sw-quote b { font-size: 22px; }
  .shape-note { min-height: 0; }
  .sw-cd.sw-countdown .c { min-width: 52px; padding: 7px 8px; }
  .sw-cd.sw-countdown b { font-size: 22px; }
  .cols-end .end-a { gap: 8px; }
  .cols-end .end-b { margin-top: 10px !important; gap: 8px; }
  .cols-end .btn-lg { min-height: 40px; padding: 0 14px; font-size: 13px; }
  .end-social { font-size: 13px; }
  .sw-ca-row .sw-ca-tag { display: none; }
  .sw-scrollhint { display: none; }
  .sw-gate { width: 150px; }
  .sw-gate-hint { right: 66px; font-size: 10px; }
}

/* ── static page (no WebGL) ────────────────────────────── */
html.no-3d .sw-band { position: static; height: auto; background: none; padding: 0 var(--gutter) 64px; max-width: 1400px; margin: 0 auto; display: block; }
html.no-3d .sw-band::before, html.no-3d .sw-ruler { display: none; }
html.no-3d .sw-parts { position: static; }
html.no-3d .part { position: static; visibility: visible; pointer-events: auto; padding: 44px 0; border-top: 1px solid var(--ink); }
html.no-3d .part:first-child { border-top: 0; }