/* TITAN public site. Tokens mirror the desktop apps (TitanPalette) - see design/DESIGN_SYSTEM.md */
:root{
  --bg:#0A0A0B;--surface:#121214;--surface-2:#1A1B1E;--subtle:#1C1D20;
  --line:#26272B;--line-strong:#6A6E77;
  --text:#EDEDEF;--text-2:#A1A5AD;--text-3:#8B8F96;
  --accent:#B39DDB;--accent-hover:#D1C4E9;--on-accent:#0A0A0B;--accent-text:#C5B4E8;--selected:#231C36;
  --success:#3FB27F;--success-bg:#10251B;--warning:#E0A43A;--danger:#F2665E;
  --shadow:0 1px 0 rgb(255 255 255 / .04) inset,0 30px 80px -30px rgb(0 0 0 / .8);
  --frame-edge:rgb(255 255 255 / .07);
  --ease-out:cubic-bezier(.16,1,.3,1);--ease-io:cubic-bezier(.65,0,.35,1);
  --maxw:1200px;--gut:24px;--sec:120px;
  --font:'Geist',system-ui,-apple-system,'Segoe UI',Roboto,'IBM Plex Sans Arabic',sans-serif;
  --mono:'Geist Mono',ui-monospace,'Cascadia Mono',Consolas,monospace;
  color-scheme:dark;
}
:root[data-theme=light]{
  --bg:#F6F8FA;--surface:#FFFFFF;--surface-2:#FFFFFF;--subtle:#EEF1F4;
  --line:#D8DEE4;--line-strong:#818B98;
  --text:#1F2328;--text-2:#59636E;--text-3:#656D76;
  --accent:#673AB7;--accent-hover:#5E35B1;--on-accent:#FFFFFF;--accent-text:#512DA8;--selected:#EDE7F6;
  --success:#157347;--success-bg:#E9F6EF;--warning:#8F5A00;--danger:#C4312B;
  --shadow:0 1px 0 rgb(255 255 255 / .6) inset,0 30px 70px -34px rgb(31 35 40 / .35);
  --frame-edge:rgb(31 35 40 / .10);
  color-scheme:light;
}
@media (max-width:767px){:root{--gut:16px;--sec:72px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--surface-2);padding:8px 14px;border-radius:4px}
.skip:focus{left:8px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 max(var(--gut),env(safe-area-inset-right)) 0 max(var(--gut),env(safe-area-inset-left))}
.icon{width:20px;height:20px;flex:none;fill:currentColor}
.mono{font-family:var(--mono);font-feature-settings:"tnum" 1;letter-spacing:0}
.eyebrow{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
h1,h2,h3{margin:0;font-weight:500;color:var(--text);text-wrap:balance}
p,.lead{text-wrap:pretty}
h1{font-size:clamp(40px,3.9vw,56px);line-height:1.02;letter-spacing:-.04em}
h2{font-size:clamp(30px,3.6vw,46px);line-height:1.06;letter-spacing:-.03em}
h3{font-size:19px;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
.lead{font-size:clamp(17px,1.4vw,19px);color:var(--text-2);line-height:1.55;max-width:56ch}
.muted{color:var(--text-2)}
section{padding:var(--sec) 0;position:relative}
.sec-head{display:grid;align-content:start;gap:18px;max-width:720px;margin-bottom:56px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 18px;border-radius:4px;
  font-size:15px;font-weight:500;white-space:nowrap;border:1px solid transparent;cursor:pointer;
  transition:background-color .14s,border-color .14s,color .14s,transform .14s var(--ease-out)}
.btn:active{transform:translateY(1px)}
.btn .icon{width:18px;height:18px;transition:transform .2s var(--ease-out)}
.btn:hover .icon{transform:translateX(2px)}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-primary:hover{background:var(--accent-hover)}
.btn-secondary{border-color:var(--line-strong);color:var(--text)}
.btn-secondary:hover{background:var(--subtle)}
.btn-sm{height:36px;padding:0 14px;font-size:14px}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background-color .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom-color:var(--line);
  backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px)}
.nav .wrap{height:68px;display:flex;align-items:center;gap:32px}
.brand img{height:20px;width:auto}
:root:not([data-theme=light]) .brand img,:root:not([data-theme=light]) .invert{filter:brightness(0) invert(1)}
.nav-links{display:flex;gap:28px;margin-left:8px}
.nav-links a{font-size:14.5px;color:var(--text-2);transition:color .14s}
.nav-links a:hover,.nav-links a[aria-current=true]{color:var(--text)}
.nav-end{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:4px;border:1px solid var(--line);background:transparent;cursor:pointer;color:var(--text-2);transition:color .14s,background-color .14s}
.icon-btn:hover{color:var(--text);background:var(--subtle)}
.icon-btn .icon{width:18px;height:18px}
.theme-btn .when-light{display:none}
:root[data-theme=light] .theme-btn .when-light{display:block}
:root[data-theme=light] .theme-btn .when-dark{display:none}
.menu-btn{display:none}
@media (max-width:900px){
  .nav-links{overscroll-behavior:contain;position:fixed;inset:68px 0 auto;flex-direction:column;gap:0;margin:0;padding:8px var(--gut) 20px;
    background:var(--bg);border-bottom:1px solid var(--line);transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .2s,transform .3s var(--ease-out),visibility 0s .3s}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:17px;color:var(--text)}
  .nav.open .nav-links{opacity:1;transform:none;visibility:visible;transition:opacity .2s,transform .3s var(--ease-out)}
  .nav.open{background:var(--bg);border-bottom-color:var(--line)}
  .menu-btn{display:inline-grid}
  .nav-end .btn{display:none}
}

/* hero */
.hero{padding:128px 0 72px;min-height:min(100dvh,940px);display:flex;flex-direction:column;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:32px;align-items:center;flex:1}
.hero-copy{display:grid;gap:26px;align-content:center;padding-bottom:48px}
.hero-copy .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
#field{position:absolute;inset:0;width:100%;height:100%;z-index:-1;opacity:.55;pointer-events:none}
.hero::after{content:"";position:absolute;inset:auto 0 0;height:30%;background:linear-gradient(to bottom,transparent,var(--bg));pointer-events:none;z-index:-1}
.stage{position:relative;perspective:1800px;height:min(64vh,620px);width:calc(100% + max(0px,(100vw - var(--maxw)) / 2) + 40px)}
.frame{position:absolute;border-radius:8px;overflow:hidden;background:var(--surface);
  box-shadow:var(--shadow);outline:1px solid var(--frame-edge);outline-offset:-1px}
.frame img{width:100%;height:100%;object-fit:cover;object-position:top left;opacity:0;transition:opacity .6s}
.frame img.loaded{opacity:1}
.frame::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,var(--subtle) 30%,var(--surface-2) 50%,var(--subtle) 70%) 0 0/300% 100%;animation:shimmer 1.6s linear infinite}
.frame.ready::before{display:none}
@keyframes shimmer{to{background-position:-300% 0}}
.stage .f-back{width:84%;aspect-ratio:16/10;right:0;top:0;transform-origin:right center}
.stage .f-front{width:86%;aspect-ratio:16/10;left:0;bottom:0;transform-origin:left center}
.stage .f-back{transform:rotateY(-14deg) rotateX(4deg) translateZ(-60px)}
.stage .f-front{transform:rotateY(-8deg) rotateX(3deg)}
.js .stage .frame{opacity:0}
.js .stage.in .f-back{animation:settleBack 1.4s var(--ease-out) .15s both}
.js .stage.in .f-front{animation:settleFront 1.4s var(--ease-out) .3s both}
@keyframes settleBack{from{opacity:0;transform:rotateY(-26deg) rotateX(10deg) translate3d(60px,40px,-160px)}to{opacity:1;transform:rotateY(-14deg) rotateX(4deg) translateZ(-60px)}}
@keyframes settleFront{from{opacity:0;transform:rotateY(-20deg) rotateX(9deg) translate3d(40px,70px,-80px)}to{opacity:1;transform:rotateY(-8deg) rotateX(3deg)}}
@media (max-width:1023px){
  .hero{padding-top:112px;min-height:0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-copy{padding-bottom:0}
  .stage{height:auto;aspect-ratio:16/12;margin:0 calc(var(--gut) * -1) 0 0}
}

/* facts row */
.facts{border-block:1px solid var(--line);padding:0}
.facts .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.fact{padding:28px 24px 28px 0;display:grid;gap:10px;align-content:start}
.fact + .fact{padding-left:24px;border-left:1px solid var(--line)}
.fact .icon{width:22px;height:22px;color:var(--accent)}
.fact b{font-weight:500;font-size:15.5px}
.fact span{font-size:14px;color:var(--text-2);line-height:1.5}
@media (max-width:900px){.facts .wrap{grid-template-columns:1fr 1fr}.fact:nth-child(3){padding-left:0;border-left:0}.fact:nth-child(n+3){border-top:1px solid var(--line)}}
@media (max-width:520px){.facts .wrap{grid-template-columns:1fr}.fact,.fact + .fact{padding:18px 0;border-left:0;grid-template-columns:auto 1fr;column-gap:14px;row-gap:4px}.fact .icon{grid-row:span 2;margin-top:2px}.fact + .fact{border-top:1px solid var(--line)}}

/* GEST: sticky product walk-through */
.walk{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:64px;align-items:start}
.walk-steps{display:grid}
.step{padding:28px 0 28px 20px;border-left:1px solid var(--line);position:relative;transition:border-color .3s}
.step-btn{all:unset;display:flex;align-items:center;gap:12px;cursor:pointer;width:100%}
.step-btn:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}
.step::before{content:"";position:absolute;left:-1px;top:0;bottom:0;width:2px;background:var(--accent);transform:scaleY(0);transform-origin:top;transition:transform .5s var(--ease-out)}
.step.active::before{transform:scaleY(1)}
.step h3{color:var(--text-2);transition:color .3s;font-size:19px}
.step.active h3{color:var(--text)}
.step h3 .icon{color:var(--text-3);transition:color .3s}
.step.active h3 .icon{color:var(--accent)}
.step p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:42ch}
.walk-view{position:sticky;top:110px}
.screen{position:relative;border-radius:8px;overflow:hidden;background:var(--surface);aspect-ratio:16/10;box-shadow:var(--shadow);outline:1px solid var(--frame-edge);outline-offset:-1px}
.screen img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top left;opacity:0;transform:scale(1.015);transition:opacity .55s var(--ease-io),transform .9s var(--ease-out)}
.screen img.on{opacity:1;transform:none}
.walk-cap{display:flex;justify-content:space-between;gap:16px;margin-top:14px;font-size:13px;color:var(--text-3)}
@media (max-width:1023px){
  .walk{grid-template-columns:1fr;gap:28px}
  .walk-view{position:sticky;top:76px;order:-1;z-index:2;background:var(--bg);padding-bottom:12px}
  .step{padding:20px 0 20px 18px}
}

/* EDU: bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.tile{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:24px;display:grid;gap:10px;align-content:start;overflow:hidden;position:relative}
.tile .icon{width:22px;height:22px;color:var(--accent)}
.tile p{font-size:14.5px;color:var(--text-2);max-width:46ch}
.tile-shot{grid-column:span 4;grid-row:span 2;padding:0;align-content:stretch}
.tile-shot .screen{border-radius:0;aspect-ratio:auto;height:100%;min-height:360px;box-shadow:none;outline:0}
.tile-shot .screen img{opacity:1;transform:none}
.tile-a,.tile-b{grid-column:span 2}
.tile-c,.tile-d,.tile-e{grid-column:span 2}
.tile-wide{grid-column:span 6;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;background:var(--selected);border-color:color-mix(in srgb,var(--accent) 30%,var(--line))}
.tile-wide p{max-width:none;color:var(--text)}
.tile-wide .mono{color:var(--accent-text);font-size:13px}
@media (max-width:1023px){.bento{grid-template-columns:1fr 1fr}.tile-shot{grid-column:span 2;grid-row:auto}.tile-shot .screen{min-height:0;aspect-ratio:16/10}.tile-a,.tile-b,.tile-c,.tile-d{grid-column:span 1}.tile-e{grid-column:span 2}.tile-wide{grid-column:span 2}}
@media (max-width:620px){.bento{grid-template-columns:1fr}.tile-a,.tile-b,.tile-c,.tile-d,.tile-e,.tile-shot,.tile-wide{grid-column:auto}.tile-wide{grid-template-columns:1fr}}

/* architecture */
.arch{border-top:1px solid var(--line)}
.diagram{display:grid;grid-template-columns:1fr 64px 1fr 64px 1fr;align-items:stretch;margin-top:8px}
.node{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:24px;display:grid;gap:12px;align-content:start}
.node header{display:flex;align-items:center;gap:12px}
.node header .icon{width:24px;height:24px;color:var(--accent)}
.node ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.node li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.45}
.node li .icon{width:16px;height:16px;margin-top:2px;color:var(--text-3)}
.node .tag{font-family:var(--mono);font-size:12px;color:var(--text-3);border-top:1px solid var(--line);padding-top:12px;margin-top:4px}
.link{position:relative;display:grid;place-items:center}
.link::before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--line-strong);transform:scaleX(0);transform-origin:left;transition:transform .9s var(--ease-out)}
.link span{position:relative;font-family:var(--mono);font-size:11px;color:var(--text-3);background:var(--bg);padding:4px 6px;opacity:0;transition:opacity .4s .6s}
.diagram.in .link::before{transform:scaleX(1)}
.diagram.in .link span{opacity:1}
.diagram.in .link:nth-of-type(4)::before{transition-delay:.35s}
.pulse{position:absolute;top:calc(50% - 3px);left:0;width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:0}
.diagram.in .pulse{animation:travel 2.8s var(--ease-io) 1.2s infinite}
@keyframes travel{0%{opacity:0;transform:translateX(0)}15%{opacity:1}85%{opacity:1}100%{opacity:0;transform:translateX(58px)}}
.arch-note{margin-top:28px;display:flex;gap:12px;align-items:flex-start;color:var(--text-2);font-size:15px;max-width:760px}
.arch-note .icon{color:var(--success);margin-top:3px}
@media (max-width:1023px){.diagram{grid-template-columns:1fr}.link{height:44px}.link::before{left:50%;right:auto;top:0;bottom:0;width:1px;height:auto;transform:scaleY(0);transform-origin:top}.diagram.in .link::before{transform:scaleY(1)}.pulse{display:none}}

/* licensing & updates timeline */
.flow{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);counter-reset:f}
.flow li{list-style:none;padding:28px 28px 0 0;display:grid;gap:12px;align-content:start;position:relative}
.flow li::before{content:"";position:absolute;top:-1px;left:0;height:2px;width:0;background:var(--accent);transition:width .8s var(--ease-out)}
.flow.in li::before{width:40px}
.flow.in li:nth-child(2)::before{transition-delay:.12s}.flow.in li:nth-child(3)::before{transition-delay:.24s}.flow.in li:nth-child(4)::before{transition-delay:.36s}
.flow ol{margin:0;padding:0}
.flow .icon{width:22px;height:22px;color:var(--text)}
.flow p{font-size:14.5px;color:var(--text-2)}
.flow code{font-family:var(--mono);font-size:12.5px;color:var(--accent-text);background:var(--selected);border-radius:4px;padding:2px 6px}
@media (max-width:900px){.flow{grid-template-columns:1fr 1fr;row-gap:12px}}
@media (max-width:520px){.flow{grid-template-columns:1fr}}

/* support split */
.support{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:64px;align-items:center}
.cmds{border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}
.cmd{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:16px 20px;border-top:1px solid var(--line)}
.cmd:first-child{border-top:0}
.cmd .icon{color:var(--text-2)}
.cmd b{font-weight:500;font-size:15px;display:block}
.cmd small{color:var(--text-3);font-size:13px}
.badge{font-family:var(--mono);font-size:11.5px;padding:3px 9px;border-radius:999px;white-space:nowrap}
.b-ok{color:var(--success);background:var(--success-bg)}
.b-acc{color:var(--accent-text);background:var(--selected)}
.b-warn{color:var(--warning);background:color-mix(in srgb,var(--warning) 14%,transparent)}
@media (max-width:1023px){.support{grid-template-columns:1fr;gap:40px}}

/* faq */
.faq{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:64px}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:22px 0;font-size:17px;font-weight:500}
.faq summary::-webkit-details-marker{display:none}
.faq summary .icon{width:18px;height:18px;color:var(--text-3);transition:transform .3s var(--ease-out)}
.faq details[open] summary .icon{transform:rotate(45deg)}
.faq .ans{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease-out)}
.faq details[open] .ans{grid-template-rows:1fr}
.faq .ans > div{overflow:hidden}
.faq .ans p{padding:0 0 24px;color:var(--text-2);max-width:62ch}
@media (max-width:900px){.faq{grid-template-columns:1fr;gap:24px}}

/* closing */
.closing{border-top:1px solid var(--line);overflow:hidden}
.closing .wrap{display:grid;gap:32px;justify-items:start}
.closing h2{font-size:clamp(36px,5vw,64px);max-width:19ch}
.contact-row{display:flex;flex-wrap:wrap;gap:12px 32px;color:var(--text-2);font-size:15px}
.contact-row a{display:inline-flex;align-items:center;gap:10px;transition:color .14s}
.contact-row a:hover{color:var(--text)}
.contact-row .icon{width:18px;height:18px}
.closing .mark{position:absolute;right:-40px;bottom:-80px;width:min(46vw,520px);opacity:.04;pointer-events:none}

/* footer */
footer{border-top:1px solid var(--line);padding:48px 0 40px;font-size:14px;color:var(--text-3)}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.foot h4{margin:0 0 14px;font-size:13px;font-weight:500;color:var(--text)}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.foot a{color:var(--text-2);transition:color .14s}
.foot a:hover{color:var(--text)}
.foot .brand img{height:18px;margin-bottom:16px}
.foot-base{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:767px){.foot{grid-template-columns:1fr 1fr}.foot > div:first-child{grid-column:span 2}}

/* reveal */
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);transition-delay:calc(var(--i,0) * 60ms)}
.js .rv.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .rv,.js .stage .frame{opacity:1;transform:none}
  #field{display:none}
}