/* ==========================================================================
   HOME-SHELL.CSS (2026-08-21)
   The homepage header (.site-header) and footer (.site-footer / .footer-grid)
   EXACTLY as index.html renders them — rules machine-extracted from
   landing.css -> homepage-responsive.css -> index-palette.css in the
   homepage's own cascade order. Do not hand-edit the extracted section:
   re-extract after homepage changes so the shells cannot drift.
   Custom properties the rules reference are scoped onto the two shell roots.
   ========================================================================== */
.site-header,.site-footer{
  --tx-authentic-teal:#035352;
  --content-width-wide:1620px;
  --cyan:var(--tx-authentic-teal);
  --gutter:clamp(18px,4vw,56px);
  --header:66px;
  --header-height:calc(var(--header,66px) + env(safe-area-inset-top,0px));
  --line:rgba(var(--tx-dirty-white-rgb),.09);
  --page-gutter:56px;
  --shell:1480px;
  --tx-blue-rgb:30,34,61;
  --tx-dirty-white:#EFE9E9;
  --tx-dirty-white-rgb:239,233,233;
  --tx-exotic-orange:#F54F1B;
  --tx-masterpiece-red-rgb:90,33,50;
  --tx-orange:#F54F1B;
  --tx-orange-rgb:245,79,27;
  --tx-red:#5A2132;
  --tx-red-rgb:90,33,50;
  --tx-sidecar-yellow:#F3E8BC;
  --tx-sidecar-yellow-rgb:243,232,188;
  --tx-teal:#035352;
  --tx-teal-rgb:3,83,82;
  --tx-white:#EFE9E9;
  --tx-white-rgb:239,233,233;
  --tx-yellow:#F3E8BC;
  --tx-yellow-rgb:243,232,188;
  --z-header:1000;
}
/* pages that adopt this shell offset fixed-header layouts with --navH */
body.home-shell{--navH:66px}
/* ======== extracted from landing.css ======== */
.shell{width:min(100%,calc(var(--shell) + var(--gutter)*2));margin:auto;padding-inline:var(--gutter)}
.site-header{position:fixed;inset:0 0 auto;z-index:1000;height:var(--header);border-bottom:1px solid transparent;background:linear-gradient(180deg,rgba(10,10,10,.9),rgba(10,10,10,.72));backdrop-filter:blur(18px);transition:border-color .25s,background .25s}
.site-header.is-scrolled{border-color:var(--line);background:rgba(10,10,10,.94)}
.nav-shell{height:100%;display:flex;align-items:center;gap:30px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:"Space Grotesk",Inter,sans-serif;font-size:20px;font-weight:800;letter-spacing:-.04em}
.brand img{display:block}
.brand>span>span{color:#55b7ea}
.desktop-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.desktop-nav a{color:#b7afa2;text-decoration:none;font-size:13px;font-weight:650;transition:color .2s}
.desktop-nav a:hover{color:#f6f2ea}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 22px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:13px;font-weight:750;letter-spacing:.01em;transition:transform .2s,border-color .2s,background .2s,box-shadow .2s}
.button:hover{transform:translateY(-2px)}
.button:focus-visible,.desktop-nav a:focus-visible,.tool-links a:focus-visible,.feature-link:focus-visible,.site-footer a:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}
.button-small{min-height:42px;padding:0 18px;background:#f4f1ea;color:#14110c}
.site-footer{padding:58px 0 24px;border-top:1px solid rgba(244,241,234,.1);background:linear-gradient(180deg,#0d0c0a 0%,#070706 100%)}
.footer-grid{display:grid;grid-template-columns:1.08fr repeat(5,minmax(108px,auto));gap:clamp(24px,4vw,58px);padding-bottom:46px}
.footer-grid>div p{max-width:330px;color:#8f877b;font-size:13px;line-height:1.65}
.footer-grid nav{display:flex;flex-direction:column;gap:12px;min-width:0}
.footer-grid nav h2{margin:0 0 7px;color:#7a7265;font-size:10px;letter-spacing:.14em;text-transform:uppercase}
.footer-grid nav a{color:#aaa295;text-decoration:none;font-size:13px}
.footer-grid nav a:hover,.footer-bottom a:hover{color:#f4f1ea}
.footer-bottom{display:flex;justify-content:space-between;padding-top:24px;border-top:1px solid var(--line);color:#7a7265;font-size:11px}
.footer-bottom a{color:#968d80;text-decoration:none}
@media(max-width:760px){
.desktop-nav,.desktop-cta{display:none}
.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding-bottom:30px}
.footer-grid>div{grid-column:1/-1}
.footer-grid nav{min-height:100%;padding:14px;border:1px solid rgba(244,241,234,.08);border-radius:12px;background:rgba(244,241,234,.025);gap:8px}
.footer-grid nav h2{margin-bottom:3px;font-size:9.5px}
.footer-grid nav a{min-height:24px;font-size:12px;line-height:1.35}
.footer-bottom{gap:10px;flex-direction:column}
}
@media(max-width:430px){
.footer-grid{gap:12px}
.footer-grid nav{padding:12px}
.footer-grid nav a{font-size:11.5px}
}
@media(prefers-reduced-motion:reduce){
.button,.float-card,.capability-card{transition:none}
}
@media(max-width:760px){
.site-header{height:var(--header);background:linear-gradient(180deg,rgba(7,8,11,.94),rgba(7,8,11,.78));border-bottom-color:rgba(244,241,234,.07)}
.brand img{width:40px;height:40px}
.brand{font-size:19px}
.nav-shell{gap:14px}
.button{-webkit-tap-highlight-color:transparent}
}
@media(min-width:761px){
.footer-grid{grid-template-columns:minmax(220px,1.15fr) repeat(5,minmax(104px,auto));gap:clamp(22px,3.2vw,54px)}
}
@media(max-width:1180px){
.nav-shell{gap:20px}
.desktop-nav{gap:20px}
}
@media(max-width:1000px){
.nav-shell{gap:14px}
.desktop-nav{gap:14px}
.desktop-nav a{font-size:12px}
}
@media(max-width:860px){
.desktop-nav{gap:11px}
.desktop-nav a{font-size:11.5px;letter-spacing:0}
}
.site-header{background:
    radial-gradient(680px 160px at 72% 0%,rgba(var(--tx-masterpiece-red-rgb),.2),transparent 64%),
    linear-gradient(180deg,rgba(9,8,12,.92),rgba(9,8,12,.76));}
.site-header.is-scrolled{background:rgba(9,8,12,.95)}
.brand>span>span{color:var(--tx-sidecar-yellow)}
.desktop-nav a:hover{color:var(--tx-sidecar-yellow)}
.button-primary,.button-small{background:linear-gradient(135deg,var(--tx-dirty-white),var(--tx-sidecar-yellow));border-color:var(--tx-sidecar-yellow);color:#14110c}
.button:focus-visible,.desktop-nav a:focus-visible,.tool-links a:focus-visible,.feature-link:focus-visible,.site-footer a:focus-visible{outline-color:var(--tx-exotic-orange)}
.site-footer{background:linear-gradient(180deg,#0d0b0e 0%,#070706 100%)}
@media(max-width:760px){
.footer-grid nav:last-child{grid-column:1 / -1;}
}

/* ======== extracted from homepage-responsive.css ======== */
.shell{width:min(100%,calc(var(--content-width-wide) + var(--page-gutter) * 2));
  padding-inline:var(--page-gutter);}
.button,
.feature-link,
.tool-links a,
.resource-tab,
.demo-chip,
.faq-list summary{min-height:44px;}
.button:focus-visible,
.prompt-ask:focus-visible,
.prompt-generate:focus-visible,
.faq-list summary:focus-visible,
.chat-close:focus-visible,
.chat-send:focus-visible,
.chat-inputbar textarea:focus-visible{outline:2px solid var(--cyan);
  outline-offset:4px;}
.site-header{z-index:var(--z-header);
  height:var(--header-height);
  padding-top:env(safe-area-inset-top,0px);}
.nav-shell{gap:14px;}
.brand img{width:38px;
  height:38px;}
.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;}
.footer-grid > div{grid-column:1 / -1;}
.footer-grid nav{min-width:0;
  min-height:100%;
  padding:14px;
  border:1px solid rgba(244,241,234,.08);
  border-radius:12px;
  background:rgba(244,241,234,.025);
  gap:8px;}
.footer-grid nav h2{margin-bottom:3px;
  font-size:9.5px;}
.footer-grid nav a{min-height:24px;
  font-size:12px;
  line-height:1.35;}
.footer-grid nav:last-child{grid-column:1 / -1;}
.footer-bottom{flex-direction:column;
  gap:10px;}
@media(min-width:600px){
.footer-grid{grid-template-columns:1.2fr repeat(3,minmax(0,1fr));}
.footer-grid > div{grid-column:1 / -1;}
}
@media(min-width:768px){
.desktop-nav,
  .desktop-cta{display:none;}
.footer-grid{grid-template-columns:minmax(180px,1.2fr) repeat(5,minmax(96px,auto));}
.footer-grid > div{grid-column:auto;}
.footer-grid nav:last-child{grid-column:auto;}
}
@media(min-width:1024px){
.desktop-nav,
  .desktop-cta{display:flex;}
.desktop-nav{gap:clamp(14px,1.7vw,28px);}
.footer-bottom{flex-direction:row;}
}
@media(min-width:1280px){
.shell{width:min(100%,calc(var(--content-width-wide) + var(--page-gutter) * 2));}
}
@media(max-height:520px) and (orientation:landscape){
.site-header{height:58px;}
}
@media(prefers-reduced-motion:reduce){
.button,
  .feature-card,
  .demo-chip,
  .resource-modal,
  .generation-modal-panel,
  .chat-panel{transition:none;}
}
.site-footer{border-top:0;
  background:linear-gradient(180deg,#0d0c0a 0%,#070706 100%);
  padding:clamp(46px,5vw,70px) 0 clamp(24px,3vw,34px);}
.site-footer .shell{width:min(calc(100% - clamp(36px,8vw,240px)),3000px);
  padding-inline:0;}
.footer-grid{display:grid;
  grid-template-columns:minmax(260px,.95fr) repeat(5,minmax(112px,1fr));
  align-items:start;
  gap:clamp(28px,4vw,82px);
  padding-bottom:clamp(28px,4vw,46px);}
.footer-grid > div{grid-column:auto;
  min-width:0;}
.footer-grid > div p{max-width:380px;}
.footer-grid nav{min-width:0;
  min-height:auto;
  gap:10px;
  padding:0;
  border:0;
  border-radius:0;
  background:none;}
.footer-grid nav h2{margin:0 0 9px;}
.footer-grid nav a{min-height:26px;
  line-height:1.35;}
.footer-grid nav:last-child{grid-column:auto;}
.footer-bottom{display:flex;
  justify-content:space-between;
  gap:18px;
  padding-top:0;
  border-top:0;}
@media(max-width:1100px){
.footer-grid{grid-template-columns:minmax(0,1fr) repeat(3,minmax(0,1fr));
    gap:28px 34px;}
.footer-grid > div{grid-column:1 / -1;}
}
@media(max-width:760px){
.site-footer{padding:34px 0 22px;}
.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));
    gap:22px 26px;
    padding-bottom:28px;}
.footer-grid > div{grid-column:1 / -1;}
.footer-grid nav,
  .footer-grid nav:last-child{grid-column:auto;
    padding:0;
    border:0;
    border-radius:0;
    background:none;}
.footer-bottom{align-items:flex-start;
    flex-direction:column;
    gap:8px;}
}
@media(max-width:430px){
.footer-grid{gap:20px 22px;}
}

/* ======== extracted from index-palette.css ======== */
.site-header{border-bottom-color:rgba(var(--tx-yellow-rgb),.12);
  background:linear-gradient(180deg,rgba(var(--tx-blue-rgb),.88),rgba(8,9,12,.76));}
.site-header::after{content:"";
  position:absolute;
  left:50%;
  bottom:-1px;
  width:min(1120px,88vw);
  height:1px;
  transform:translateX(-50%);
  background:linear-gradient(90deg,transparent,rgba(var(--tx-red-rgb),.5),rgba(var(--tx-yellow-rgb),.42),rgba(var(--tx-teal-rgb),.5),transparent);
  pointer-events:none;}
.brand span span,
.desktop-nav a[aria-current="page"],
.tx-menu-brand span span{color:var(--tx-orange);}
.desktop-nav a:hover,
.footer-grid a:hover,
.footer-bottom a:hover{color:var(--tx-yellow);}
.desktop-nav a[aria-current="page"]::after{background:linear-gradient(90deg,var(--tx-orange),var(--tx-yellow));}
.button-ghost,
.desktop-cta{border-color:rgba(var(--tx-yellow-rgb),.22);
  background:rgba(var(--tx-white-rgb),.045);
  color:var(--tx-white);}
.button-ghost:hover,
.desktop-cta:hover{border-color:rgba(var(--tx-yellow-rgb),.4);
  background:rgba(var(--tx-teal-rgb),.16);}
.site-footer{background:
    radial-gradient(circle at 12% 0%,rgba(var(--tx-red-rgb),.2),transparent 30%),
    radial-gradient(circle at 88% 20%,rgba(var(--tx-teal-rgb),.16),transparent 34%),
    #07080b;}
.footer-grid nav{border-color:rgba(var(--tx-yellow-rgb),.11);}

/* ---- host-page guards ----------------------------------------------------
   The shells land on pages whose body color is dark ink on a light surface;
   the homepage brand/wordmark inherits body color there and vanishes.
   Pin the inherited colors to the homepage values. */
.site-header .brand,
.site-footer .brand{color:var(--tx-white)}
.site-header .desktop-nav a{color:rgba(var(--tx-white-rgb),.78)}
.site-footer{color:rgba(var(--tx-white-rgb),.62)}
.site-footer .footer-grid>div p{color:rgba(var(--tx-white-rgb),.45)}

/* Pages whose old header bar was in normal flow (blog family) opt into a
   flow spacer so the fixed homepage header doesn't overlap their hero. */
body.home-shell-offset::before{
  content:"";
  display:block;
  height:var(--header-height,66px);
}