/* trace.batechstudio.ai: the host's own pages (holding page, 404, 500, 503) for SampliFi First Fill™ with Trace™ powered by BATech.
   The landing page's frame: BATech's black, porcelain and cobalt, the co-brand lockup in the bar
   and the two partners' faces from /css/cobrand.css (load it first; every face is self-hosted).
   The one accent is the hero's thread: teal into violet into magenta. */
:root{
  --void:#000; --graphite:#101317; --line:#242932; --line2:#333a46;
  --porcelain:#e8eaed; --alum:#9aa3ae;
  --cobalt:#2e62ff; --cobalt-press:#2554e6; --cobalt-hi:#4c79ff;
  --grad-cta:linear-gradient(115deg,#10788f 0%,#822da9 52%,#cd21c6 100%);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --gutter-l:max(18px,env(safe-area-inset-left),5vw);
  --gutter-r:max(18px,env(safe-area-inset-right),5vw);
  color-scheme:dark;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  min-height:100vh;min-height:100svh;display:flex;flex-direction:column;
  background:var(--void);color:var(--porcelain);
  font-family:var(--bt-text);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;
}
::selection{background:var(--cobalt);color:#fff}
:focus{outline:none}
:focus-visible{outline:2px solid var(--cobalt-hi);outline-offset:3px;border-radius:4px}
a{color:inherit}
img{display:block;max-width:100%}

.skip{position:fixed;left:16px;top:-80px;z-index:10;padding:12px 18px;border-radius:8px;
  background:var(--porcelain);color:#000;font-weight:500;font-size:15px;text-decoration:none}
.skip:focus-visible{top:max(14px,env(safe-area-inset-top))}

/* top bar: the lockup, home, and the way into the demo; aligned to the stage's column */
.bar{padding:max(8px,env(safe-area-inset-top)) var(--gutter-r) 8px var(--gutter-l);border-bottom:1px solid var(--line)}
.bar-in{max-width:1120px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:14px}
.bar .lockup{--lockup-c:12px;flex:0 0 auto;padding-block:4px}
.bar .lockup:focus-visible{outline-offset:-1px;border-radius:8px}
@media (max-width:599px){.bar .lockup{--lockup-c:10.4px}}
@media (max-width:389px){.bar .lockup{--lockup-c:9.6px}}
@media (max-width:339px){.bar .lockup{--lockup-c:9px}}
.bar-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;flex:0 0 auto;
  border-radius:100px;box-shadow:inset 0 0 0 1px var(--line2);font:500 14.5px/1 var(--bt-text);
  color:var(--porcelain);text-decoration:none;transition:box-shadow .2s,background-color .2s}
.bar-link:hover{box-shadow:inset 0 0 0 1px var(--alum);background:rgba(255,255,255,.04)}
@media (max-width:339px){.bar-link{padding:0 13px}}

/* stage */
main{flex:1;display:flex;align-items:center;padding:clamp(56px,11vh,140px) var(--gutter-r) clamp(56px,10vh,120px) var(--gutter-l)}
.stage{width:100%;max-width:1120px;margin:0 auto}
.thread{height:2px;width:min(260px,46vw);margin-bottom:34px;border-radius:2px;
  background:linear-gradient(90deg,#1eb4dc,#822da9 55%,#dc27d5)}
h1{font-family:var(--bt-display);font-weight:800;letter-spacing:-.02em;line-height:1;
  font-size:clamp(40px,7vw,92px);text-wrap:balance;max-width:16ch}
h1.err{font-size:clamp(38px,6.2vw,84px)}
/* the holding page names the offering, each half in its own brand's display face */
h1.name{max-width:20ch}
h1 .h-ff{font-family:var(--ff-display);font-weight:500;font-size:.952em;letter-spacing:-.02em}
h1 .h-tr{font-family:var(--bt-display)}
.tm{font-size:.42em;vertical-align:1.05em;margin-left:.05em;letter-spacing:0;line-height:0}
.lede{margin-top:24px;max-width:58ch;font-size:clamp(16.5px,1.5vw,20px);line-height:1.6;color:var(--alum);text-wrap:pretty}
.lede b{color:var(--porcelain);font-weight:500}

.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.cta{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;
  border-radius:100px;background:var(--cobalt);color:#fff;font:500 16px/1.1 var(--bt-text);text-decoration:none;
  transition:background-color .2s var(--ease-out),transform .12s var(--ease-out),box-shadow .2s}
.cta:hover{background:var(--cobalt-press)}
.cta:active{transform:scale(.97)}
.cta.ghost{background:transparent;color:var(--porcelain);box-shadow:inset 0 0 0 1px var(--line2)}
.cta.ghost:hover{background:rgba(255,255,255,.04);box-shadow:inset 0 0 0 1px var(--alum)}
.cta svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .25s var(--ease-out)}
.cta:hover svg{transform:translateX(3px)}

/* the two doors (BUILD-SCOPE §4d): For manufacturers -> Sign in, For patients -> Sign up */
.doors{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:540px;margin-top:36px}
.door{position:relative;display:grid;align-content:center;gap:4px;min-height:68px;padding:12px 48px 13px 20px;border-radius:14px;
  color:#fff;text-decoration:none;transition:background-color .2s var(--ease-out),box-shadow .24s var(--ease-out),transform .12s var(--ease-out)}
.door-k{font-size:13.5px;line-height:1.2;font-weight:500}
.door-a{font-size:19px;line-height:1.15;font-weight:500}
.door svg{position:absolute;right:18px;top:50%;width:18px;height:18px;margin-top:-9px;fill:none;stroke:currentColor;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;transition:transform .25s var(--ease-out)}
.door:hover svg{transform:translateX(3px)}
.door:active{transform:scale(.98)}
.door-mfr{background:var(--cobalt);font-family:var(--bt-text)}
.door-mfr:hover{background:var(--cobalt-press)}
.door-pt{background:var(--grad-cta);font-family:var(--ff-text);box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}
.door-pt .door-a{font-weight:600}

.code{margin-top:40px;font:400 13px/1.4 var(--bt-mono);letter-spacing:.04em;color:var(--alum)}
.notice{margin-top:28px;max-width:70ch;font-size:14px;line-height:1.6;color:var(--alum)}

/* footer */
footer{border-top:1px solid var(--line);
  padding:22px var(--gutter-r) max(22px,env(safe-area-inset-bottom)) var(--gutter-l)}
.legal{max-width:1120px;margin:0 auto;display:grid;gap:4px 24px;font-size:13px;line-height:1.55;color:var(--alum)}
.legal .notes{display:grid;gap:2px}
@media (min-width:768px){.legal{grid-template-columns:auto minmax(0,1fr) auto;align-items:center}}
.legal .copy{color:var(--porcelain)}
.legal nav{display:flex;flex-wrap:wrap;gap:0 18px}
.legal nav a{display:inline-flex;align-items:center;min-height:44px;color:var(--alum);text-decoration:none;transition:color .2s}
.legal nav a:hover{color:var(--porcelain)}

@media (max-width:560px){
  body{font-size:16px}
  .actions{flex-direction:column;align-items:stretch}
  .cta{width:100%}
  .doors{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important}
}