/* ============================================================ TDG LABS site
   Brand system: Ink #060B14 · Night #0B1220 · Panel #111B2D
   Signal lime #D9FF5A · Signal cyan #63E6FF · Ice #EAF2F7 · Muted #8DA1B4
   Type: Space Grotesk (display/body) + IBM Plex Mono (labels/meta)
   ========================================================================= */
:root{
  --ink:#060B14; --night:#0B1220; --panel:#111B2D;
  --lime:#D9FF5A; --cyan:#63E6FF; --ice:#EAF2F7; --muted:#8DA1B4; --line:#26364E;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.site{
  margin:0;background:var(--ink);color:var(--ice);
  font-family:'Space Grotesk',system-ui,sans-serif;
  font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px}

.mono{font-family:'IBM Plex Mono',monospace}
.muted{color:var(--muted)}
.accent{color:var(--lime)}
.right{text-align:right}
.wrap{width:min(var(--wrap),calc(100% - 44px));margin-inline:auto}
.wrap-narrow{width:min(760px,calc(100% - 44px));margin-inline:auto}

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:100;background:var(--lime);color:var(--ink);
  padding:10px 16px;border-radius:10px;font-weight:600;transition:top .2s;
}
.skip-link:focus{top:16px}

/* ------------------------------------------------------------------ nav */
.topnav{
  position:fixed;inset:0 0 auto 0;z-index:50;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
  border-bottom:1px solid transparent;
}
.topnav.scrolled{background:rgba(6,11,20,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.topnav-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700}
.brand img{border-radius:9px}
.brand-text{font-size:18px;letter-spacing:-.02em}
.brand-text b{color:var(--lime)}
.mainnav{display:flex;align-items:center;gap:28px}
.mainnav > a:not(.btn){
  font:500 12.5px 'IBM Plex Mono';letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  transition:color .15s;
}
.mainnav > a:not(.btn):hover,.mainnav > a.active{color:var(--ice)}
.mainnav > a.active{color:var(--lime)}
.navtoggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.navtoggle span{display:block;width:22px;height:2px;background:var(--ice)}

/* ------------------------------------------------------------------ btn */
.btn{
  display:inline-block;background:var(--lime);color:var(--ink);border:0;border-radius:12px;
  padding:13px 24px;font:600 15px 'Space Grotesk';cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(217,255,90,.2)}
.btn-ghost{background:transparent;color:var(--ice);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--lime);color:var(--lime);box-shadow:none}
.btn-small{padding:9px 16px;font-size:13.5px;border-radius:10px}
.text-link{color:var(--cyan);font:500 13.5px 'IBM Plex Mono';letter-spacing:.05em}
.text-link:hover{color:var(--lime)}

/* ------------------------------------------------------------------ hero */
.hero{position:relative;padding:172px 0 96px;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(680px 420px at 12% 8%,rgba(217,255,90,.09),transparent 65%),
    radial-gradient(720px 480px at 88% 30%,rgba(99,230,255,.08),transparent 65%);
}
.hero-visual{
  position:absolute;inset:0;
  background:url('/assets/img/key-visual.jpg') right center/cover no-repeat;
  opacity:.5;
  -webkit-mask-image:linear-gradient(to left,#000 8%,transparent 68%);
  mask-image:linear-gradient(to left,#000 8%,transparent 68%);
}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(38,54,78,.35) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(38,54,78,.35) 1px,transparent 1px);
  background-size:80px 80px;
  -webkit-mask-image:radial-gradient(760px 560px at 60% 30%,#000 20%,transparent 75%);
  mask-image:radial-gradient(760px 560px at 60% 30%,#000 20%,transparent 75%);
  opacity:.4;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.22fr .78fr;gap:56px;align-items:center}
.display{
  font-size:clamp(44px,6.6vw,96px);line-height:.94;letter-spacing:-.055em;
  font-weight:700;margin:18px 0 26px;
}
.display span{color:var(--lime)}
.display-sm{font-size:clamp(36px,5.6vw,68px);line-height:.98;letter-spacing:-.05em;font-weight:700;margin:16px 0 20px}
.display-sm span{color:var(--lime)}
.hero-sub{font-size:18px;color:var(--muted);max-width:47ch;margin:0 0 34px}
.eyebrow{
  font:500 11px 'IBM Plex Mono';letter-spacing:.22em;text-transform:uppercase;color:var(--lime);
  margin:0 0 8px;
}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}

/* lab status card */
.labcard{
  background:rgba(11,18,32,.82);border:1px solid var(--line);border-radius:20px;
  backdrop-filter:blur(8px);overflow:hidden;
}
.labcard-head{
  display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line);
}
.dot{width:9px;height:9px;border-radius:50%;background:var(--line)}
.dot-lime{background:var(--lime)}
.dot-cyan{background:var(--cyan)}
.labcard-title{margin-left:8px;font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.labcard-rows{margin:0}
.labcard-rows > div{
  display:flex;justify-content:space-between;gap:14px;align-items:center;
  padding:15px 18px;border-bottom:1px solid var(--line);
}
.labcard-rows dt{font:500 10.5px 'IBM Plex Mono';letter-spacing:.18em;color:var(--muted)}
.labcard-rows dd{margin:0;font:500 12.5px 'IBM Plex Mono';color:var(--ice)}
.pulse{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--lime);
  margin-right:6px;animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(217,255,90,.5)}55%{box-shadow:0 0 0 7px rgba(217,255,90,0)}}
.labcard-foot{
  display:flex;justify-content:space-between;gap:10px;padding:13px 18px;font-size:10.5px;
  letter-spacing:.1em;color:var(--muted);
}
.mono-cyan{color:var(--cyan)}

/* --------------------------------------------------------------- marquee */
.marquee{border-block:1px solid var(--line);overflow:hidden;padding:16px 0;margin-top:8px}
.marquee-track{display:flex;gap:34px;width:max-content;animation:marquee 34s linear infinite}
.marquee-track span{font:500 12px 'IBM Plex Mono';letter-spacing:.22em;color:var(--muted);white-space:nowrap}
.marquee-track i{color:var(--lime);font-size:9px;align-self:center}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* --------------------------------------------------------------- markers */
.markers{padding:46px 0}
.markers-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.marker{border-left:1px solid var(--line);padding-left:20px}
.marker-num{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.03em;margin:0 0 6px}
.marker-label{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin:0}

/* --------------------------------------------------------------- sections */
.section{padding:96px 0}
.section-tight{padding-top:8px}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;gap:28px;
  border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:42px;
}
.section-head h2{font-size:clamp(30px,3.8vw,44px);line-height:1.02;letter-spacing:-.05em;margin:0}
.section-note{max-width:420px;color:var(--muted);font-size:15.5px;margin:0}

.card{
  background:var(--night);border:1px solid var(--line);border-radius:18px;padding:26px;
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:#33475f}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card-num{font-size:11px;letter-spacing:.2em;color:var(--lime);margin:0 0 14px}
.service-card h3{margin:0 0 10px;font-size:19.5px;letter-spacing:-.02em}
.service-card p{margin:0;font-size:14.5px}

/* work */
.grid-work{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.work-card{display:flex;flex-direction:column;gap:12px}
.work-card:hover{transform:translateY(-3px)}
.work-top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}
.work-top h3{margin:0;font-size:22px;letter-spacing:-.03em}
.tag{
  font:500 10.5px 'IBM Plex Mono';letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:4px 11px;white-space:nowrap;
}
.work-card p{margin:0;font-size:14.5px}
.work-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
}
.stack{font-size:10.5px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.work-link{font:500 13px 'IBM Plex Mono';color:var(--cyan)}
.work-link:hover{color:var(--lime)}

/* process */
.process-step{border-left:1px solid var(--line);padding-left:20px}
.process-step h3{margin:0 0 10px;font-size:19.5px}
.process-step p{margin:0;font-size:14.5px}

/* notes */
.note-card{display:block}
.note-card:hover{transform:translateY(-3px);border-color:var(--lime)}
.note-cover{aspect-ratio:16/9;border-radius:12px;background:var(--panel) center/cover no-repeat;margin-bottom:18px}
.note-meta{font-size:10.5px;letter-spacing:.12em;color:var(--muted);margin:0 0 10px;text-transform:uppercase}
.note-card h3{margin:0 0 10px;font-size:19px;letter-spacing:-.02em;line-height:1.25}
.note-card p{margin:0;font-size:14.5px}

/* ---------------------------------------------------------------- contact */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.contact-copy h2{font-size:clamp(30px,3.8vw,46px);line-height:1.05;letter-spacing:-.045em;margin:0 0 20px}
.contact-copy > p{max-width:44ch}
.contact-direct{margin-top:30px;display:flex;flex-direction:column;gap:12px}
.contact-mail{font:500 15px 'IBM Plex Mono';color:var(--cyan);word-break:break-all}
.contact-mail:hover{color:var(--lime)}
.socials{display:flex;gap:20px;flex-wrap:wrap}
.socials a{font:500 12.5px 'IBM Plex Mono';letter-spacing:.06em;color:var(--ice)}
.socials a:hover{color:var(--lime)}
.vee{margin-top:36px;animation:float 6s ease-in-out infinite alternate}
@keyframes float{from{transform:translateY(0)}to{transform:translateY(-10px)}}

.contact-form{padding:30px}
.field{display:block;margin-bottom:16px}
.field > span.mono{display:block;font-size:10.5px;letter-spacing:.16em;color:var(--muted);margin-bottom:7px;text-transform:uppercase}
.field input,.field textarea{
  width:100%;background:var(--ink);border:1px solid var(--line);border-radius:11px;
  padding:12px 14px;color:var(--ice);font:inherit;font-size:15px;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--lime)}
.field textarea{resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{border-radius:11px;padding:12px 15px;font-size:14px;margin:0 0 16px}
.form-note.ok{background:rgba(217,255,90,.08);border:1px solid rgba(217,255,90,.4);color:var(--lime)}
.form-note.err{background:rgba(255,110,110,.08);border:1px solid rgba(255,110,110,.4);color:#ffc2c2}

/* ----------------------------------------------------------------- footer */
.footer{border-top:1px solid var(--line);margin-top:30px;padding:84px 0 30px;background:var(--night)}
.footer-cta h2{font-size:clamp(38px,5.6vw,80px);line-height:.95;letter-spacing:-.055em;margin:10px 0 30px}
.footer-cta h2 span{color:var(--lime)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:30px;margin:56px 0 44px}
.footer-col{display:flex;flex-direction:column;gap:9px}
.footer-col .brand{margin-bottom:6px}
.footer-col p{margin:0;font-size:14px;max-width:34ch}
.foot-head{font:500 10.5px 'IBM Plex Mono';letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin:0 0 6px}
.footer-col a{font-size:14.5px;color:var(--muted)}
.footer-col a:hover{color:var(--lime)}
.footer-base{
  border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font:400 11px 'IBM Plex Mono';color:var(--muted);letter-spacing:.06em;
}

/* --------------------------------------------------------------- blogs page */
.page-hero{padding:164px 0 26px}
.tagbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:30px}
.tagbar .tag{cursor:pointer;padding:7px 14px}
.tagbar .tag-on{color:var(--ink);background:var(--lime);border-color:var(--lime)}
.featured-note{display:grid;grid-template-columns:1.15fr .85fr;padding:0;overflow:hidden;margin-bottom:16px}
.featured-note:hover{border-color:var(--lime)}
.featured-body{padding:38px}
.featured-body h2{font-size:clamp(24px,2.8vw,34px);letter-spacing:-.04em;line-height:1.1;margin:0 0 14px}
.featured-body .text-link{display:inline-block;margin-top:10px}
.featured-cover{min-height:300px;background:var(--panel) center/cover no-repeat}
.notes-grid{margin-top:8px}
.empty-state{
  text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;padding:60px 26px;
}
.empty-state h3{margin:0;font-size:22px}
.pager{display:flex;justify-content:center;align-items:center;gap:18px;margin-top:40px}

/* --------------------------------------------------------------- single post */
.post-head{padding:160px 0 12px}
.post-head .eyebrow a{color:var(--lime)}
.post-meta{font-size:11.5px;letter-spacing:.1em;color:var(--muted);margin:14px 0 0;text-transform:uppercase}
.post-meta a{color:var(--cyan)}
.post-meta a:hover{color:var(--lime)}
.post-cover{aspect-ratio:16/8;border-radius:18px;background:var(--panel) center/cover no-repeat;margin:26px 0 44px}
.prose{font-size:17px;line-height:1.85;color:#dbe6ef}
.prose h2{font-size:26px;letter-spacing:-.03em;margin:44px 0 14px}
.prose h3{font-size:20px;margin:34px 0 12px}
.prose p{margin:0 0 20px}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--lime)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:24px}
.prose li{margin-bottom:8px}
.prose code{font:400 14px 'IBM Plex Mono';background:var(--panel);padding:3px 7px;border-radius:7px}
.prose pre{background:var(--night);border:1px solid var(--line);border-radius:14px;padding:20px;overflow:auto;margin:0 0 22px}
.prose pre code{background:none;padding:0;font-size:13.5px;line-height:1.65}
.prose blockquote{border-left:3px solid var(--lime);margin:0 0 22px;padding:8px 20px;color:var(--muted)}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:14px;margin:6px 0 22px}
.prose hr{border:0;border-top:1px solid var(--line);margin:38px 0}
.post-share{display:flex;align-items:center;gap:10px;margin:40px 0;flex-wrap:wrap}
.post-share .mono{font-size:10.5px;letter-spacing:.2em}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:44px 0}
.post-nav-item{
  display:flex;flex-direction:column;gap:7px;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;font-weight:600;
}
.post-nav-item:hover{border-color:var(--lime)}
.post-nav-item .mono{font-size:10.5px;letter-spacing:.16em}
.post-nav-item.right{text-align:right;align-items:flex-end}
.post-cta{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:30px;margin-bottom:80px}
.post-cta h3{margin:6px 0 0;font-size:20px;letter-spacing:-.02em}

/* --------------------------------------------------------------- reveal */
/* Gated on .js so content is fully visible without JavaScript. */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

/* ------------------------------------------------------------ responsive */
@media (max-width:1020px){
  .hero{padding-top:150px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .markers-grid{grid-template-columns:repeat(2,1fr);gap:26px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-work{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .featured-note{grid-template-columns:1fr}
  .featured-cover{min-height:220px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .mainnav{
    display:none;position:absolute;top:100%;left:0;right:0;background:var(--ink);
    border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;
    padding:20px 22px 26px;gap:16px;
  }
  .mainnav.open{display:flex}
  .navtoggle{display:flex}
  .topnav{background:rgba(6,11,20,.82);backdrop-filter:blur(14px)}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .markers-grid{grid-template-columns:1fr 1fr}
  .field-row{grid-template-columns:1fr}
  .section{padding:70px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .post-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .post-cta{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .marquee-track{animation:none}
  .vee{animation:none}
  .pulse{animation:none}
}