/* ==========================================================================
   Home hero, shared composition (the same file in every design).
   One layout for all five designs: copy on the left, the framed mark on the right,
   a step strip along the bottom. Colour and type come from each design's own tokens
   (--ink, --graphite, --blueline, --rule-strong, --f-display, --f-note), so the
   composition is shared and the skin stays each design's own.
   ========================================================================== */

.hero--ref{padding-block:clamp(40px,4.6vw,68px) clamp(24px,2.6vw,36px);overflow:hidden}
.hero--ref .hero-ref{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);
  grid-template-areas:"copy fig" "strip strip";column-gap:clamp(32px,6vw,96px);row-gap:clamp(28px,3.2vw,44px);align-items:center}

/* ---- copy ---- */
body .hero.hero--ref .hero-copy{grid-area:copy;min-width:0;max-width:34rem;padding:0;border:0;background:none;transform:none}
.hero--ref .hero-copy::before,.hero--ref .hero-copy::after{content:none}
.hero--ref .hero-eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 clamp(24px,2.8vw,36px);
  font:500 11px/1.4 var(--f-note);letter-spacing:.14em;text-transform:uppercase;color:var(--blueline)}
.hero--ref .hero-eyebrow span{width:5px;height:5px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor;flex:none}
.hero--ref .hero-title{margin:0;max-width:none;font-size:clamp(48px,6vw,88px);line-height:.98;letter-spacing:-.045em;text-wrap:initial}
.hero--ref .hero-title .ln{display:block}
.hero--ref .hero-sub{margin:clamp(24px,2.6vw,36px) 0 0;max-width:30em;font-size:clamp(16px,1.25vw,18px);line-height:1.6;color:var(--graphite)}
.hero--ref .hero-sub::before{content:none}
.hero--ref .cta-row{display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:12px 18px;margin:clamp(28px,3vw,40px) 0 0;text-align:left}
.hero--ref .cta{gap:clamp(12px,1.5vw,24px);white-space:nowrap}
.hero--ref .cta .arrow{width:18px;height:12px;flex:none}
.hero--ref .cta-note{margin:0;max-width:none;text-align:left;font-size:14px;line-height:1.4;color:var(--graphite)}
.hero--ref .hero-note{margin:18px 0 0;font-size:13px;line-height:1.5;color:var(--graphite);opacity:.85}
.hero--ref .m-only{display:none}

/* ---- the framed mark ---- */
body .hero.hero--ref .hero-figure{grid-area:fig;position:relative;justify-self:end;width:min(100%,440px,58vh);margin:0;padding:0;border:0;background:none;order:0}
.hero--ref .hero-figure::before,.hero--ref .hero-figure::after{content:none}
.hero--ref .hero-fig-label{position:absolute;left:0;top:-4px;z-index:3;margin:0;font:500 11px/1 var(--f-note);letter-spacing:.12em;color:var(--blueline)}
.hero--ref .chrome-stage{width:100%;transform:none}
.hero--ref .hero-caption{display:grid;gap:6px;margin:clamp(8px,1.4vw,18px) 0 0;padding-left:16%;max-width:none;font-size:14px;line-height:1.5;color:var(--ink)}
.hero--ref .hero-caption-label{font:500 11px/1.4 var(--f-note);letter-spacing:.14em;text-transform:uppercase;color:var(--blueline)}
.hero--ref .hero-pause{right:0;bottom:4px;width:44px;height:44px;opacity:.7}
.hero--ref .hero-pause:hover,.hero--ref .hero-pause:focus-visible{opacity:1}
/* the drawing's framing: quiet, level construction lines */
.hero--ref .dline-dot{stroke-dasharray:6 10}
.hero--ref .schematic-lattice{opacity:.55}

/* ---- the step strip ---- */
.hero--ref .hero-strip{grid-area:strip;display:flex;align-items:flex-start;justify-content:space-between;gap:24px 48px;padding-top:clamp(22px,2.4vw,32px);border-top:1px solid var(--rule-strong)}
.hero--ref .hero-step{display:flex;align-items:baseline;gap:20px;margin:0}
.hero--ref .hero-step-num{flex:none;font:500 11px/1.4 var(--f-note);letter-spacing:.12em;color:var(--blueline)}
.hero--ref .hero-step-text{display:grid;gap:4px}
.hero--ref .hero-step-text strong{font-weight:500;font-size:16px;line-height:1.4;color:var(--ink)}
.hero--ref .hero-step-sub{display:block;font-size:14px;line-height:1.5;color:var(--graphite)}
.hero--ref .hero-strip-end{display:grid;gap:14px;width:min(246px,100%);flex:none}
.hero--ref .seq-bar{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin:0}
.hero--ref .seq-bar::before,.hero--ref .seq-bar::after{content:none}
.hero--ref .seq-bar span{height:2px;border-radius:0;background:var(--rule-strong);clip-path:none;box-shadow:none}
.hero--ref .seq-bar span:first-child{background:var(--blueline);width:auto}
.hero--ref .hero-strip-link{display:inline-flex;align-items:center;gap:12px;font-size:14px;color:var(--ink);text-decoration:none}
.hero--ref .hero-strip-link svg{width:14px;height:10px;transition:transform .3s ease}
.hero--ref .hero-strip-link:hover{color:var(--blueline)}
.hero--ref .hero-strip-link:hover svg{transform:translateX(4px)}

/* ---- intro: the new pieces arrive with the rest of the type ---- */
@keyframes hero-ref-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.hero-intro-pending .hero--ref .hero-eyebrow{animation:hero-ref-in .8s cubic-bezier(.16,.84,.3,1) 1.3s both}
.hero-intro-pending .hero--ref .hero-note{animation:hero-ref-in .8s cubic-bezier(.16,.84,.3,1) 2.45s both}
.hero-intro-pending .hero--ref .hero-fig-label,.hero-intro-pending .hero--ref .hero-caption{animation:hero-ref-in .8s cubic-bezier(.16,.84,.3,1) 2.2s both}
.hero-intro-pending .hero--ref .hero-strip{animation:hero-ref-in .9s cubic-bezier(.16,.84,.3,1) 2.6s both}
.motion-paused.hero-intro-pending .hero--ref .hero-eyebrow,.motion-paused.hero-intro-pending .hero--ref .hero-note,
.motion-paused.hero-intro-pending .hero--ref .hero-fig-label,.motion-paused.hero-intro-pending .hero--ref .hero-caption,
.motion-paused.hero-intro-pending .hero--ref .hero-strip{animation:none}

/* ---- tablet and phone: copy, then the mark, then the strip ---- */
@media (max-width:900px){
  .hero--ref .hero-ref{grid-template-columns:minmax(0,1fr);grid-template-areas:"copy" "fig" "strip";row-gap:36px}
  body .hero.hero--ref .hero-copy{max-width:36rem}
  body .hero.hero--ref .hero-figure{justify-self:center;width:min(100%,420px)}
  .hero--ref .hero-caption{padding-left:0;text-align:center;justify-items:center}
}
@media (max-width:640px){
  .hero--ref{padding-block:40px 32px}
  .hero--ref .hero-title{font-size:clamp(44px,13vw,60px);line-height:1}
  .hero--ref .hero-sub{font-size:16px}
  .hero--ref .cta-row{flex-direction:column;align-items:stretch;gap:14px}
  .hero--ref .cta{width:100%;justify-content:space-between}
  .hero--ref .hero-note{display:none}
  .hero--ref .d-only{display:none}
  .hero--ref .m-only{display:inline}
  body .hero.hero--ref .hero-figure{width:min(100%,330px)}
  .hero--ref .hero-strip{flex-direction:column;gap:18px}
  .hero--ref .hero-strip-end{width:100%;max-width:210px}
}

/* Keep action labels intact, including the angled buttons in Drafting. */
.home .closing .cta{white-space:nowrap}
@media (max-width:640px){
  .home .hero--ref .cta,.home .closing .cta{
    --h:48px;min-height:48px;gap:8px;padding-block:12px;
    font-size:clamp(13px,4.5vw,16px);
  }
  .home.layout-drafting .cta{padding-inline:calc(var(--k) + 6px)}
}

/* Keep navigation usable without scripts, without flashing an expanded menu
   while JavaScript loads. The visible viewport also bounds landscape menus. */
.wrap{padding-left:max(var(--gutter),env(safe-area-inset-left,0px));padding-right:max(var(--gutter),env(safe-area-inset-right,0px))}
.site-head .nav a{white-space:nowrap}
@media (max-width:1100px){
  .site-head .nav{max-height:calc(100dvh - var(--head-h) - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px));overscroll-behavior:contain}
}
@media (max-width:1100px) and (scripting:none){
  .site-head{position:relative}
  .head-inner{flex-wrap:wrap}
  .site-head .nav{position:static;display:block;flex:1 0 100%;order:1;max-height:none;overflow:visible}
  .site-head .nav ul{height:auto}
  .theme-btn,.menu-btn{display:none}
}

/* home hero background image: above the studio light, beneath the floor, rays, dust and 3D mark.
   Depth of field: a blurred copy fades in toward the horizon, so near cubes stay sharp and far ones soften. */
.hero--ref .hero-photo{position:absolute;inset:0;overflow:hidden;background:url("assets/hero-bg.webp") 50% 62%/cover no-repeat;
  filter:grayscale(1) sepia(.9) hue-rotate(163deg) saturate(1.1) brightness(.8) contrast(1.05)}
.hero--ref .hero-photo::before{content:"";position:absolute;inset:-24px;background:inherit;filter:blur(7px);
  -webkit-mask-image:linear-gradient(to bottom,#000 0%,#000 38%,transparent 72%);mask-image:linear-gradient(to bottom,#000 0%,#000 38%,transparent 72%)}
.hero--ref .hero-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgb(12 16 19/.85) 0%,rgb(12 16 19/.7) 35%,rgb(12 16 19/0) 60%),linear-gradient(180deg,rgb(12 16 19/.6) 0%,rgb(12 16 19/.3) 45%,rgb(12 16 19/.6) 85%,rgb(12 16 19) 100%)}
/* the cube logos glow: a thresholded copy keeps only the bright marks, blooms them and breathes slowly */
.hero--ref .hero-photo-glow{position:absolute;inset:0;background:inherit;mix-blend-mode:screen;opacity:.08;z-index:1;
  filter:grayscale(1) brightness(1.1) contrast(6) blur(1.5px) drop-shadow(0 0 6px rgb(140 198 230)) drop-shadow(0 0 14px rgb(45 98 130));
  animation:cube-glow 5.5s ease-in-out infinite}
@keyframes cube-glow{50%{opacity:.55}}
.motion-paused .hero--ref .hero-photo-glow{animation-play-state:paused}
.hero--ref .hero-sub{color:#D3DCE0;text-shadow:0 1px 2px rgb(12 16 19/.9),0 0 18px rgb(12 16 19/.8)}