/* =========================================================================
   ArchiMass — landing.css
   Section-by-section layout for the home page scroll story.
   Order:  hero · strip · story · agent · voice · capabilities · stack
           · options · control · world · arena · audiences · faq · cta
   ========================================================================= */

/* Shared top spacing for the landing page's content sections. */
.landing > .section{ padding-top:clamp(16px,2vh,28px); }

/* =======================================================================
   00 — HERO
   A dark architectural environment. Canvas sits on the far Z-plane, a
   glass instrument bar floats nearest the viewer, type sits between.
   ======================================================================= */
.hero{
  position:relative;
  min-height:100svh;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding-top:calc(var(--header-h) + 40px);
  padding-bottom:clamp(28px,5vh,56px);
  overflow:hidden;
  isolation:isolate;
}
.hero__canvas{
  position:absolute; inset:0; z-index:-2;
  width:100%; height:100%;
}
.hero__vignette{
  position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:
    radial-gradient(120% 80% at 50% 8%, var(--hero-wash), transparent 60%),
    radial-gradient(90% 70% at 50% 100%, color-mix(in srgb, var(--void) 96%, transparent), color-mix(in srgb, var(--void) 25%, transparent) 55%, transparent),
    linear-gradient(180deg, color-mix(in srgb, var(--void) 72%, transparent), transparent 30%);
}
.hero__inner{
  position:relative; z-index:2;
  width:100%; max-width:var(--maxw); margin-inline:auto;
  padding-inline:var(--gutter);
  display:grid; gap:clamp(22px,3vw,40px);
}
.hero__title{
  font-size:clamp(2.3rem, 1.25rem + 4.4vw, 5.2rem);
  line-height:1.032;
  letter-spacing:-.045em;
  font-weight:700;
  margin:0;
  max-width:16ch;
}
.hero__title .l{
  display:block; overflow:hidden;
}
.hero__title .l > span{
  display:block;
  transform:translateY(110%);
  animation:heroLine 1.15s var(--ease-io) forwards;
}
.hero__title .l:nth-child(2) > span{ animation-delay:.1s; }
.hero__title .l:nth-child(3) > span{ animation-delay:.2s; }
.hero__title .thin{ font-weight:300; color:var(--paper-dim); }
.hero__title .l:not(:first-child) > span{ font-weight:300; color:var(--paper-dim); }

.hero__brandline{
  display:flex; align-items:center; gap:16px; flex-wrap:wrap;
  opacity:0; animation:fadeUp .9s var(--ease) .15s forwards;
}
.hero__brand{
  font-family:var(--f-mono); font-size:clamp(11px,1.1vw,13px);
  letter-spacing:.34em; text-transform:uppercase; color:var(--paper);
}
.hero__sub{
  font-size:clamp(.98rem,.92rem+.3vw,1.12rem); color:var(--paper-dim); max-width:46ch;
  line-height:1.45; letter-spacing:-.01em;
  opacity:0; animation:fadeUp .9s var(--ease) .45s forwards;
}
.hero__sub b{ color:var(--paper); font-weight:500; }
.hero__actions{
  display:flex; flex-wrap:wrap; gap:12px; align-items:center;
  opacity:0; animation:fadeUp .9s var(--ease) .6s forwards;
}

/* instrument bar — the nearest Z-plane in the hero */
.hero__bar{
  margin-top:clamp(20px,4vh,46px);
  display:grid; grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line-1);
  background:color-mix(in srgb, var(--graphite) 45%, transparent);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  opacity:0; animation:fadeUp .9s var(--ease) .78s forwards;
}
.hero__bar div{
  padding:16px 18px; border-left:1px solid var(--line-1);
  display:grid; gap:5px;
}
.hero__bar div:first-child{ border-left:0; }
.hero__bar .k{ font-family:var(--f-mono); font-size:10px; letter-spacing:.18em; text-transform:uppercase; color:var(--paper-mute); }
.hero__bar .v{ font-size:14px; font-weight:500; letter-spacing:-.01em; }
.hero__bar .v em{ font-style:normal; color:var(--instrument); }

/* live readout the hero 3D sequence writes into */
.hero__readout{
  position:absolute; right:var(--gutter); top:calc(var(--header-h) + 34px);
  z-index:2; text-align:right; pointer-events:none;
  display:grid; gap:6px;
  opacity:0; animation:fadeIn 1s var(--ease) 1.1s forwards;
}
.hero__readout .row{
  font-family:var(--f-mono); font-size:11px; letter-spacing:.06em;
  color:var(--paper-mute);
}
.hero__readout .row b{ color:var(--instrument); font-weight:500; }
.hero__readout .cmd{
  font-family:var(--f-mono); font-size:12px; color:var(--agent);
  border:1px solid var(--agent-d); padding:6px 10px;
  background:color-mix(in srgb, var(--agent) 8%, transparent);
  min-height:30px;
}
.hero__scroll{
  position:absolute; left:50%; bottom:18px; transform:translateX(-50%);
  z-index:2; display:grid; justify-items:center; gap:8px;
  font-family:var(--f-mono); font-size:9.5px; letter-spacing:.24em;
  text-transform:uppercase; color:var(--paper-mute);
}
.hero__scroll i{ width:1px; height:34px; background:linear-gradient(var(--line-3),transparent); display:block; }

@media (max-width:860px){
  .hero__readout{ display:none; }
  .hero__bar{ grid-template-columns:repeat(2,1fr); }
  .hero__bar div:nth-child(3){ border-left:0; }
  .hero__bar div:nth-child(n+3){ border-top:1px solid var(--line-1); }
}

/* =======================================================================
   01 — CREDIBILITY STRIP  (marquee of disciplines / typologies)
   ======================================================================= */
.strip{
  border-block:1px solid var(--line-1);
  padding-block:20px; overflow:hidden;
  background:color-mix(in srgb, var(--paper) 2%, transparent);
}
.strip__track{
  display:flex; gap:56px; width:max-content;
  animation:marquee 46s linear infinite;
}
.strip:hover .strip__track{ animation-play-state:paused; }
.strip__track span{
  font-family:var(--f-mono); font-size:12px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--paper-mute);
  display:inline-flex; align-items:center; gap:56px; white-space:nowrap;
}
.strip__track span::after{ content:""; width:4px; height:4px; background:var(--instrument-d); transform:rotate(45deg); }

/* =======================================================================
   02 — THE SCROLL STORY  (sticky stage + stepped chapters)
   The canvas is pinned; chapters scroll past it on a nearer Z-plane.
   ======================================================================= */
.story{ position:relative; }
.story__stage{
  position:sticky; top:0; height:100svh;
  display:grid; place-items:center; overflow:hidden;
}
.story__canvas{ position:absolute; inset:0; width:100%; height:100%; }
.story__stage::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:radial-gradient(75% 60% at 62% 50%, transparent 30%, color-mix(in srgb, var(--void) 74%, transparent) 100%);
}
.story__hud{
  position:absolute; left:var(--gutter); bottom:clamp(22px,5vh,52px);
  z-index:3; display:flex; gap:26px; align-items:flex-end;
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.14em;
  text-transform:uppercase; color:var(--paper-mute);
}
.story__hud .k{ display:grid; gap:4px; }
.story__hud .k b{ color:var(--paper); font-weight:500; font-size:13px; letter-spacing:.02em; }

.story__steps{ position:relative; z-index:2; margin-top:-100svh; }
.story__step{
  min-height:100svh;
  display:flex; align-items:center;
  padding-inline:var(--gutter);
  max-width:var(--maxw); margin-inline:auto;
  pointer-events:none;
}
.story__card{
  width:min(480px,100%);
  padding:clamp(24px,3vw,38px);
  pointer-events:auto;
  transform:translateY(34px);
  opacity:0;
  transition:opacity .7s var(--ease), transform .9s var(--ease-io);
}
.story__step.is-active .story__card{ opacity:1; transform:translateY(0); }
.story__card h2{ font-size:clamp(1.45rem,1.1rem+1.25vw,2.15rem); margin:14px 0 16px; }
.story__card p{ color:var(--paper-dim); font-size:15.5px; line-height:1.62; }
.story__card ul{ margin-top:18px; display:grid; gap:9px; }
.story__card li{
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.06em;
  color:var(--paper-mute); display:flex; gap:10px; align-items:flex-start;
}
.story__card li::before{ content:"—"; color:var(--instrument-d); }
/* odd chapters sit right, even chapters sit left → the eye crosses the model */
.story__step:nth-child(even){ justify-content:flex-end; }

@media (max-width:820px){
  .story__step{ align-items:flex-end; padding-bottom:9vh; }
  .story__step:nth-child(even){ justify-content:flex-start; }
  .story__hud{ display:none; }
}

/* =======================================================================
   03 — VISUAL AI  (guided choices + composed prompt)
   ======================================================================= */
.agent{ position:relative; overflow:hidden; }
.agent__head{ max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.agent__title{ max-width:18ch; margin:18px 0 0; }
.agent__title .hl{ color:var(--paper-dim); }
.agent__body{
  max-width:var(--maxw); margin:clamp(40px,6vw,72px) auto 0;
  padding-inline:var(--gutter);
  display:grid; gap:clamp(20px,3vw,36px);
  grid-template-columns:1.02fr .98fr; align-items:stretch;
}
.visual-composer{ display:flex; flex-direction:column; min-height:clamp(460px,55vh,590px); border:1px solid var(--line-2); background:var(--card); }
.visual-composer__head{ display:flex; align-items:center; justify-content:space-between; gap:18px; min-height:66px; padding:16px 20px; border-bottom:1px solid var(--line-2); }
.visual-composer__head>div{ display:flex; align-items:center; gap:12px; }
.visual-composer__head strong{ font-size:14px; font-weight:600; }
.visual-composer__head>span{ color:var(--paper-mute); font:9px/1 var(--f-mono); letter-spacing:.12em; text-transform:uppercase; }
.visual-tabs{ display:grid; grid-template-columns:repeat(4,1fr); border-bottom:1px solid var(--line-2); }
.visual-tab{ position:relative; min-height:52px; padding:9px 10px; border:0; border-right:1px solid var(--line-1); background:transparent; color:var(--paper-mute); text-align:left; font:9px/1.35 var(--f-mono); letter-spacing:.1em; text-transform:uppercase; cursor:pointer; }
.visual-tab:last-child{ border-right:0; }
.visual-tab b{ display:block; margin-bottom:4px; color:inherit; font:500 8px/1 var(--f-mono); opacity:.68; }
.visual-tab.is-active{ background:color-mix(in srgb,var(--instrument) 9%,transparent); color:var(--instrument); }
.visual-tab.is-complete::after{ content:""; position:absolute; right:9px; top:9px; width:5px; height:5px; transform:rotate(45deg); background:var(--agent); }
.visual-step{ padding:20px; border-bottom:1px solid var(--line-1); }
.visual-step__heading{ display:flex; align-items:baseline; justify-content:space-between; gap:18px; margin-bottom:15px; }
.visual-step__heading span{ color:var(--paper); font-size:15px; font-weight:600; }
.visual-step__heading p{ margin:0; color:var(--paper-mute); text-align:right; font:9px/1.45 var(--f-mono); }
.visual-choices{ display:flex; flex-wrap:wrap; gap:8px; }
.visual-choice{ min-height:38px; padding:8px 12px; border:1px solid var(--line-2); background:var(--void); color:var(--paper-dim); font:10px/1.2 var(--f-mono); cursor:pointer; transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease); }
.visual-choice:hover{ border-color:var(--line-3); color:var(--paper); transform:translateY(-1px); }
.visual-choice.is-selected{ border-color:var(--agent-d); background:color-mix(in srgb,var(--agent) 10%,transparent); color:var(--agent); }
.visual-selection{ display:flex; flex-wrap:wrap; gap:6px; padding:14px 20px; border-bottom:1px solid var(--line-1); }
.visual-selection span{ padding:4px 7px; border:1px solid color-mix(in srgb,var(--instrument) 30%,transparent); color:var(--instrument); background:color-mix(in srgb,var(--instrument) 7%,transparent); font:8px/1 var(--f-mono); letter-spacing:.08em; text-transform:uppercase; }
.visual-prompt{ flex:1; padding:18px 20px; background:color-mix(in srgb,var(--void) 70%,transparent); }
.visual-prompt>div{ display:flex; justify-content:space-between; gap:14px; margin-bottom:10px; color:var(--paper-mute); font:8px/1 var(--f-mono); letter-spacing:.13em; text-transform:uppercase; }
.visual-prompt>div span:first-child{ color:var(--agent); }
.visual-prompt p{ margin:0; color:var(--paper-dim); font:11px/1.7 var(--f-mono); }
.visual-composer__foot{ display:flex; align-items:center; justify-content:space-between; gap:18px; padding:15px 20px; border-top:1px solid var(--line-2); }
.visual-composer__foot>span{ color:var(--paper-mute); font:8px/1.4 var(--f-mono); }
.visual-composer__foot .btn{ flex:0 0 auto; min-height:36px; padding:0 16px; white-space:nowrap; }
.agent__viewport{ position:relative; min-height:clamp(460px,55vh,590px); margin:0; border:1px solid var(--line-2); background:linear-gradient(170deg,var(--viz-a),var(--viz-b)); overflow:hidden; }
.agent__preview img{ width:100%; height:100%; object-fit:cover; opacity:.82; filter:saturate(.82) contrast(1.03); transition:filter .35s var(--ease),transform .7s var(--ease); }
.agent__preview:hover img{ transform:scale(1.018); }
.agent__preview::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg,transparent 44%,color-mix(in srgb,var(--void) 92%,transparent)); pointer-events:none; }
.agent__preview figcaption{ position:absolute; z-index:2; right:0; bottom:0; left:0; display:grid; gap:6px; padding:22px; }
.agent__preview figcaption span{ color:var(--instrument); font:9px/1 var(--f-mono); letter-spacing:.15em; text-transform:uppercase; }
.agent__preview figcaption strong{ max-width:28ch; color:var(--paper); font-size:clamp(1.05rem,2vw,1.5rem); line-height:1.2; }

.agent__note{
  max-width:var(--maxw); margin:22px auto 0; padding-inline:var(--gutter);
  display:flex; gap:12px; align-items:center; flex-wrap:wrap;
}
.agent__head .agent__note{
  max-width:none; margin:18px 0 0; padding:0;
}
@media (max-width:980px){
  .agent__body{ grid-template-columns:1fr; }
  .agent__viewport{ min-height:420px; }
}
@media (max-width:620px){
  .visual-tabs{ grid-template-columns:repeat(2,1fr); }
  .visual-tab:nth-child(2){ border-right:0; }
  .visual-tab:nth-child(-n+2){ border-bottom:1px solid var(--line-1); }
  .visual-step__heading,.visual-composer__foot{ align-items:flex-start; flex-direction:column; }
  .visual-step__heading p{ text-align:left; }
  .agent__viewport{ min-height:330px; }
}

/* =======================================================================
   04 — VOICE  (roadmap, honestly labelled)
   ======================================================================= */
.voice{ position:relative; }
.voice__wrap{
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter);
  display:grid; grid-template-columns:1fr 1fr; gap:clamp(24px,4vw,64px);
  align-items:center;
}
.voice__wave{
  height:140px; width:100%; display:block;
}
.voice__quote{
  font-size:clamp(1.02rem,.94rem+.7vw,1.4rem);
  font-weight:500; letter-spacing:-.03em; line-height:1.15;
  margin:18px 0 10px;
}
.voice__quote .said{ color:var(--paper); }
.voice__quote .did{ color:var(--instrument); }
@media (max-width:860px){ .voice__wrap{ grid-template-columns:1fr; } }

/* =======================================================================
   05 — CAPABILITY INDEX  (hover a row → the model highlights that layer)
   ======================================================================= */
.caps__head{ display:flex; justify-content:space-between; align-items:flex-end; gap:30px; flex-wrap:wrap; }
.caps__grid{
  margin-top:clamp(34px,5vw,60px);
  display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(20px,3vw,44px);
  align-items:start;
}
.caps__list{ border-top:1px solid var(--line-1); }
.cap{
  position:relative; width:100%; text-align:left;
  display:grid; grid-template-columns:auto 1fr auto; gap:18px; align-items:center;
  padding:20px 4px; border-bottom:1px solid var(--line-1);
  transition:padding-left .4s var(--ease), background-color .4s var(--ease);
}
.cap::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:1px;
  background:var(--instrument); transform:scaleY(0); transform-origin:top;
  transition:transform .45s var(--ease-io);
}
.cap:hover,.cap.is-active{ padding-left:20px; background:color-mix(in srgb, var(--paper) 3%, transparent); }
.cap:hover::before,.cap.is-active::before{ transform:scaleY(1); }
.cap__no{ font-family:var(--f-mono); font-size:10.5px; color:var(--paper-mute); letter-spacing:.1em; }
.cap__t{ font-size:clamp(.98rem,.9rem+.38vw,1.22rem); font-weight:500; letter-spacing:-.025em; }
.cap__d{
  grid-column:2; font-size:13.5px; color:var(--paper-mute); line-height:1.55;
  max-height:0; overflow:hidden; opacity:0;
  transition:max-height .5s var(--ease-io), opacity .4s var(--ease), margin-top .4s var(--ease);
}
.cap:hover .cap__d,.cap.is-active .cap__d{ max-height:120px; opacity:1; margin-top:8px; }
.cap__meta{ font-family:var(--f-mono); font-size:9.5px; letter-spacing:.16em; text-transform:uppercase; color:var(--paper-mute); }

.caps__model{
  position:sticky; top:calc(var(--header-h) + 24px);
  border:1px solid var(--line-2);
  background:linear-gradient(170deg, var(--viz-a), var(--viz-b));
  aspect-ratio:1/1.08; overflow:hidden;
}
.caps__model canvas{ position:absolute; inset:0; width:100%; height:100%; }
.caps__model .m-label{
  position:absolute; left:16px; bottom:14px; z-index:2;
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.14em;
  text-transform:uppercase; color:var(--instrument);
  transition:color .3s var(--ease);
}
@media (max-width:900px){
  .caps__grid{ grid-template-columns:1fr; }
  .caps__model{ position:relative; top:0; order:-1; aspect-ratio:4/3; }
  .cap__d{ max-height:120px; opacity:1; margin-top:8px; }
}

/* =======================================================================
   06 — THE STACK  (exploded: tower · podium · parking · basement · terrain)
   ======================================================================= */
.stack{ position:relative; }
.stack__wrap{
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter);
  display:grid; grid-template-columns:.9fr 1.1fr; gap:clamp(24px,4vw,60px);
  align-items:center;
}
.stack__viz{ position:relative; aspect-ratio:1/1.15; }
.stack__viz canvas{ position:absolute; inset:0; width:100%; height:100%; }
.stack__legend{ display:grid; gap:2px; margin-top:26px; }
.stack__legend button{
  display:grid; grid-template-columns:14px 1fr auto; gap:14px; align-items:center;
  padding:13px 12px; border:1px solid transparent; border-bottom-color:var(--line-1);
  text-align:left; transition:background-color .3s var(--ease), border-color .3s var(--ease);
}
.stack__legend button:hover,.stack__legend button.is-active{
  background:color-mix(in srgb, var(--paper) 3%, transparent); border-color:var(--line-2);
}
.stack__legend .sw{ width:14px; height:14px; border:1px solid currentColor; }
.stack__legend .nm{ font-size:14px; font-weight:500; letter-spacing:-.015em; }
.stack__legend .vl{ font-family:var(--f-mono); font-size:11px; color:var(--paper-mute); }
@media (max-width:860px){ .stack__wrap{ grid-template-columns:1fr; } }

/* =======================================================================
   07 — OPTIONS  (same site, five schemes)
   ======================================================================= */
.options{ position:relative; overflow:hidden; }
.options__head{ display:flex; justify-content:space-between; align-items:flex-end; flex-wrap:wrap; gap:24px; }
.options__stageWrap{
  margin-top:clamp(30px,4vw,54px);
  position:relative;
  border:1px solid var(--line-2);
  background:linear-gradient(180deg, var(--viz-a), var(--viz-b));
}
.options__stage{ position:relative; aspect-ratio:16/8.4; }
.options__stage canvas{ position:absolute; inset:0; width:100%; height:100%; }
.options__tabs{
  display:flex; border-top:1px solid var(--line-2); overflow-x:auto;
  scrollbar-width:none;
}
.options__tabs::-webkit-scrollbar{ display:none; }
.options__tabs button{
  flex:1 0 auto; min-width:150px; padding:16px 18px; text-align:left;
  border-right:1px solid var(--line-1); position:relative;
  transition:background-color .35s var(--ease);
}
.options__tabs button:last-child{ border-right:0; }
.options__tabs button:hover{ background:color-mix(in srgb, var(--paper) 3%, transparent); }
.options__tabs button::after{
  content:""; position:absolute; left:0; right:0; top:-1px; height:1px;
  background:var(--instrument); transform:scaleX(0); transform-origin:left;
  transition:transform .5s var(--ease-io);
}
.options__tabs button.is-active::after{ transform:scaleX(1); }
.options__tabs .on{ font-family:var(--f-mono); font-size:10px; letter-spacing:.18em; color:var(--paper-mute); }
.options__tabs .ot{ font-size:14px; font-weight:500; margin-top:5px; letter-spacing:-.02em; }
.options__tabs button.is-active .ot{ color:var(--instrument); }
.options__readout{
  position:absolute; top:18px; right:18px; z-index:2;
  display:grid; gap:7px; text-align:right; pointer-events:none;
}
.options__readout .r{ font-family:var(--f-mono); font-size:11px; color:var(--paper-mute); }
.options__readout .r b{ color:var(--paper); font-weight:500; }

/* =======================================================================
   08 — CONTROL  (architect in command) + floating film panels
   ======================================================================= */
.control{ position:relative; }
.control__lead{
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter);
  display:grid; grid-template-columns:1fr 1fr; gap:clamp(24px,4vw,60px); align-items:end;
}
.control__split{
  margin-top:clamp(40px,6vw,80px);
  display:grid; grid-template-columns:1fr 1fr; gap:1px;
  background:var(--line-1); border:1px solid var(--line-1);
}
.control__half{ background:var(--void); padding:clamp(24px,3.4vw,44px); position:relative; }
.control__half h3{ font-size:var(--step-2); margin:14px 0 14px; }
.control__half ul{ display:grid; gap:11px; margin-top:20px; }
.control__half li{ font-size:14px; color:var(--paper-dim); display:flex; gap:12px; }
.control__half li::before{ content:""; width:6px; height:6px; margin-top:8px; flex:0 0 auto; transform:rotate(45deg); }
.control__half--ai li::before{ background:var(--agent); }
.control__half--you li::before{ background:var(--instrument); }
@media (max-width:820px){
  .control__lead,.control__split{ grid-template-columns:1fr; }
}

/* film strip: cinematic panels floating at different depths */
.films{
  position:relative; margin-top:clamp(48px,7vw,110px);
  overflow-x:clip;   /* contains the horizontal reveal offset of the side notes.
                        Safe here — nothing inside .films is position:sticky. */
}
.films__row{
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter);
  display:grid; gap:clamp(18px,3vw,40px); align-items:center;
}
.films__row--a{ grid-template-columns:1.25fr .75fr; }
.films__row--b{ grid-template-columns:.75fr 1.25fr; margin-top:clamp(28px,5vw,80px); }
.films__note{ align-self:end; }
@media (max-width:820px){
  .films__row--a,.films__row--b{ grid-template-columns:1fr; }
}

/* =======================================================================
   09 — THE WORLD  (one engine · many jurisdictions)
   ======================================================================= */
.world{ position:relative; overflow:hidden; }
.world__wrap{
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter);
  display:grid; grid-template-columns:1fr 1.05fr; gap:clamp(28px,4vw,64px); align-items:center;
}
.world__globe{ position:relative; width:100%; min-width:0; aspect-ratio:1/1; }
.world__globe canvas{ position:absolute; inset:0; width:100%; height:100%; }
.world__list{ display:grid; }
.world__row{
  display:grid; grid-template-columns:auto 1fr auto; gap:18px; align-items:baseline;
  padding:16px 6px; border-bottom:1px solid var(--line-1); text-align:left; width:100%;
  transition:padding-left .4s var(--ease), color .3s var(--ease);
}
.world__row:hover,.world__row.is-active{ padding-left:16px; }
.world__row .cc{ font-family:var(--f-mono); font-size:10.5px; color:var(--paper-mute); letter-spacing:.14em; }
.world__row .cn{ font-size:clamp(.98rem,.9rem+.4vw,1.25rem); font-weight:500; letter-spacing:-.025em; }
.world__row:hover .cn,.world__row.is-active .cn{ color:var(--instrument); }
.world__row .cm{ font-family:var(--f-mono); font-size:10.5px; color:var(--paper-mute); text-align:right; }
.world__engine{
  margin-top:clamp(36px,5vw,64px);
  max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter);
}
.world__engineGrid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line-1); border:1px solid var(--line-1);
}
.world__engineGrid > div{ background:var(--void); padding:clamp(20px,2.6vw,32px); }
.world__engineGrid h4{ font-size:16px; font-weight:600; margin:12px 0 10px; letter-spacing:-.02em; }
.world__engineGrid p{ font-size:13.5px; color:var(--paper-mute); margin:0; line-height:1.6; }
@media (max-width:900px){
  .world__wrap{ grid-template-columns:1fr; }
  .world__globe{ max-width:420px; margin-inline:auto; }
  .world__engineGrid{ grid-template-columns:1fr; }
}

/* =======================================================================
   10 — ARENA
   ======================================================================= */
.arena{ position:relative; overflow:hidden; }
.arena__head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:28px; flex-wrap:wrap;
}
.arena__filters{
  display:flex; gap:7px; margin-top:clamp(26px,3vw,40px); flex-wrap:wrap;
}
.arena__filters button{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.14em; text-transform:uppercase;
  padding:8px 13px; border:1px solid var(--line-1); color:var(--paper-mute);
  transition:color .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}
.arena__filters button:hover{ color:var(--paper); border-color:var(--line-3); }
.arena__filters button.is-active{ color:var(--void); background:var(--paper); border-color:var(--paper); }
.arena__grid{
  margin-top:26px;
  display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(12px,1.4vw,20px);
}
.arena__empty{ grid-column:1/-1; padding:60px 0; text-align:center; }
.arena-empty-state{
  grid-column:1/-1; position:relative; isolation:isolate; overflow:hidden;
  min-height:clamp(340px,46vw,520px); padding:clamp(34px,6vw,82px);
  border:1px solid var(--line-2); background:var(--sheet-b);
  display:flex; flex-direction:column; justify-content:center; align-items:flex-start;
}
.arena-empty-state::before{
  content:""; position:absolute; z-index:-1; inset:0;
  background-image:linear-gradient(var(--line-1) 1px,transparent 1px),linear-gradient(90deg,var(--line-1) 1px,transparent 1px);
  background-size:48px 48px; opacity:.65; mask-image:linear-gradient(90deg,transparent,black 48%,transparent);
}
.arena-empty-state::after{
  content:""; position:absolute; z-index:-1; width:min(54vw,700px); aspect-ratio:1;
  right:-18%; top:50%; transform:translateY(-50%); border:1px solid var(--instrument);
  border-radius:50%; box-shadow:0 0 0 56px color-mix(in srgb,var(--instrument) 8%,transparent),0 0 0 112px color-mix(in srgb,var(--paper) 4%,transparent);
  opacity:.6;
}
.arena-empty-state__kicker{
  font-family:var(--f-mono); color:var(--instrument); font-size:10px; line-height:1.5;
  letter-spacing:.16em; text-transform:uppercase;
}
.arena-empty-state h3{
  max-width:720px; margin:18px 0; color:var(--paper); font-size:clamp(34px,5vw,72px);
  line-height:.98; letter-spacing:-.055em;
}
.arena-empty-state h3 span{ color:var(--paper-mute); font-weight:300; }
.arena-empty-state > p{ max-width:680px; margin:0; color:var(--paper-dim); font-size:clamp(15px,1.6vw,19px); line-height:1.65; }
.arena-empty-state__actions{ display:flex; align-items:center; gap:18px; flex-wrap:wrap; margin-top:30px; }
.arena-empty-state__actions small{ max-width:330px; color:var(--paper-mute); font-family:var(--f-mono); font-size:10px; line-height:1.5; letter-spacing:.08em; text-transform:uppercase; }
.arena__foot{ margin-top:34px; display:flex; gap:16px; align-items:center; flex-wrap:wrap; }
@media (max-width:1180px){ .arena__grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:820px){ .arena__grid{ grid-template-columns:repeat(2,1fr); gap:10px; } }
@media (max-width:520px){
  .arena__grid{
    display:flex; overflow-x:auto; scroll-snap-type:x mandatory;
    margin-inline:calc(var(--gutter) * -1); padding-inline:var(--gutter);
    scrollbar-width:none; gap:12px;
  }
  .arena__grid::-webkit-scrollbar{ display:none; }
  .arena__grid > *{ flex:0 0 78%; scroll-snap-align:start; }
  .arena__grid > .arena-empty-state{ flex-basis:100%; }
  .arena-empty-state{ min-height:440px; padding:32px 24px; }
  .arena-empty-state::after{ width:430px; right:-55%; opacity:.4; }
}

/* =======================================================================
   11 — AUDIENCES
   ======================================================================= */
.who__grid{
  margin-top:clamp(30px,4vw,54px);
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line-1); border:1px solid var(--line-1);
}
.who__cell{ background:var(--void); padding:clamp(20px,2.4vw,30px); min-height:180px; display:grid; align-content:start; gap:10px; transition:background-color .4s var(--ease); }
.who__cell:hover{ background:var(--carbon); }
.who__cell h3{ font-size:17px; font-weight:600; letter-spacing:-.02em; }
.who__cell p{ font-size:13px; color:var(--paper-mute); margin:0; line-height:1.6; }
.who__cell--lead{ background:var(--carbon); }
.who__cell--lead h3{ color:var(--instrument); }
@media (max-width:1000px){ .who__grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .who__grid{ grid-template-columns:1fr; } }

/* =======================================================================
   12 — FAQ (real content → eligible for FAQPage structured data)
   ======================================================================= */
.faq__grid{ margin-top:clamp(28px,4vw,50px); border-top:1px solid var(--line-1); }
.faq__item{ border-bottom:1px solid var(--line-1); }
.faq__q{
  width:100%; text-align:left; display:flex; gap:20px; align-items:flex-start;
  padding:20px 4px; font-size:clamp(.95rem,.88rem+.26vw,1.08rem); font-weight:500;
  letter-spacing:-.02em; transition:padding-left .4s var(--ease), color .3s var(--ease);
}
.faq__q:hover{ padding-left:14px; color:var(--instrument); }
.faq__q .ix{ font-family:var(--f-mono); font-size:10.5px; color:var(--paper-mute); padding-top:6px; }
.faq__q .pm{ margin-left:auto; font-family:var(--f-mono); color:var(--paper-mute); transition:transform .4s var(--ease); }
.faq__item.is-open .pm{ transform:rotate(45deg); }
.faq__a{
  max-height:0; overflow:hidden;
  transition:max-height .55s var(--ease-io);
}
.faq__a > div{ padding:0 4px 26px 44px; max-width:76ch; color:var(--paper-dim); font-size:14.5px; line-height:1.68; }

/* =======================================================================
   13 — CLOSING CTA
   ======================================================================= */
.end{ position:relative; overflow:hidden; text-align:center; }
.end__canvas{ position:absolute; inset:0; width:100%; height:100%; z-index:0; opacity:.55; }
.end__inner{ position:relative; z-index:2; display:grid; justify-items:center; gap:26px; }
.end h2{ font-size:clamp(1.85rem,1.25rem+2.5vw,3.5rem); letter-spacing:-.04em; }
.end__actions{ display:flex; gap:12px; flex-wrap:wrap; justify-content:center; }

/* =======================================================================
   Shared section head
   ======================================================================= */
.shead{ display:grid; gap:16px; max-width:70ch; }
.shead h2{ letter-spacing:-.035em; }
.shead .lede{ margin-top:4px; }

/* =======================================================================
   ACCESS — the commercial promise (no lock-in · pay as you go · GPU)
   ======================================================================= */
.access__head{
  display:grid; grid-template-columns:1fr 1fr; gap:clamp(24px,4vw,60px); align-items:end;
}
.access__grid{
  margin-top:clamp(30px,4vw,54px);
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line-1); border:1px solid var(--line-1);
}
.access__cell{
  background:var(--void); padding:clamp(22px,2.8vw,36px);
  display:grid; align-content:start; gap:12px;
  position:relative; transition:background-color .4s var(--ease);
}
.access__cell:hover{ background:var(--carbon); }
.access__no{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.2em; color:var(--instrument);
}
.access__cell h3{ font-size:clamp(1.02rem,.94rem+.42vw,1.3rem); letter-spacing:-.025em; }
.access__cell p{ font-size:13.5px; color:var(--paper-mute); margin:0; line-height:1.62; }
.access__tag{
  justify-self:start; margin-top:4px;
  font-family:var(--f-mono); font-size:9.5px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--paper-dim); border:1px solid var(--line-2); padding:4px 8px;
}
.access__foot{ margin-top:22px; }
.access__foot a{ color:var(--instrument); border-bottom:1px solid var(--instrument-d); }
.end__parent{ margin-top:6px; }
.end__parent a{ color:var(--paper); border-bottom:1px solid var(--instrument-d); }
.end__parent a:hover{ color:var(--instrument); }
@media (max-width:900px){
  .access__head{ grid-template-columns:1fr; }
  .access__grid{ grid-template-columns:1fr; }
}

/* --- Jurisdiction list: fifteen rows, three columns --------------------- */
.world__list{
  display:grid; grid-template-columns:repeat(3,1fr);
  column-gap:clamp(18px,2.6vw,40px);
  margin-top:clamp(34px,4vw,56px);
  border-top:1px solid var(--line-1);
}
.world__row{ align-items:start; padding:15px 6px; }
.world__row .cc{ padding-top:4px; }
.world__row .cn{ display:block; }
.world__row .rules{
  display:block; font-style:normal; font-family:var(--f-mono);
  font-size:10px; line-height:1.5; letter-spacing:.02em;
  color:var(--paper-mute); margin-top:5px; max-width:30ch;
}
.world__row .cm{ display:none; }
@media (min-width:1280px){ .world__row .cm{ display:block; } }
@media (max-width:1000px){ .world__list{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:620px){ .world__list{ grid-template-columns:1fr; } }

/* keep the globe from stretching the section taller than its text */
@media (min-width:901px){
  .world__globe{ max-width:380px; margin-inline:auto; }
  .world__list{ margin-top:clamp(20px,2vw,32px); }
}