/* ============================================================
   Synaptive — shared design system
   ============================================================ */
:root{
  --bg:#0B0B0C; --bg2:#141416; --bg3:#1b1b1e;
  --band:#F4F1EC;
  --text:#ECE8E1; --muted:rgba(236,232,225,.62); --faint:rgba(236,232,225,.42);
  --line:rgba(255,255,255,.10); --line2:rgba(255,255,255,.18);
  --accent:#d09b8b; --accent2:#cb8e7e;
  --sans:'Century Gothic','Jost','Questrial',system-ui,sans-serif;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;max-width:100%;overflow-x:hidden;}
body{font-family:var(--sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.55;letter-spacing:.005em;max-width:100%;overflow-x:hidden;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px;}
h1,h2,h3{font-weight:700;letter-spacing:-.01em;}
.label{font-size:14px;font-weight:500;color:var(--accent);margin-bottom:20px;}
.arrow{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:15px;color:var(--text);margin-top:28px;transition:gap .15s,color .15s;}
.arrow:hover{gap:12px;color:var(--accent);}
section{padding:104px 0;}
h2{font-size:clamp(30px,3.6vw,44px);line-height:1.1;}
.lead{font-size:18px;color:var(--muted);line-height:1.65;margin-top:22px;max-width:52ch;}
.sec-head{max-width:680px;margin-bottom:56px;}
.section-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* NAV */
nav{position:sticky;top:0;z-index:50;background:rgba(11,11,12,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 40px;height:74px;display:flex;align-items:center;justify-content:space-between;}
.brand{font-weight:700;font-size:22px;letter-spacing:.01em;}
.nav-links{display:flex;gap:32px;align-items:center;}
.nav-links a{font-size:15px;color:var(--muted);transition:color .15s;}
.nav-links a:hover,.nav-links a.active{color:var(--text);}
.nav-cta{color:var(--text)!important;border:1px solid var(--line2);padding:9px 17px;border-radius:2px;font-size:14px;transition:.15s;}
.nav-cta:hover{background:var(--text);color:var(--bg)!important;}
.nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:44px;height:44px;background:none;border:none;cursor:pointer;padding:0;flex-shrink:0;-webkit-tap-highlight-color:transparent;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);transition:transform .2s,opacity .2s;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* BUTTONS */
.btn{display:inline-block;font-size:15px;font-weight:500;padding:14px 24px;border-radius:2px;transition:.15s;}
.btn-primary{background:var(--accent2);color:#171008;}
.btn-primary:hover{background:var(--accent);}
.btn-line{color:var(--text);border-bottom:1px solid var(--line2);padding:14px 2px;border-radius:0;}
.btn-line:hover{border-color:var(--accent);color:var(--accent);}
.btn-dark{background:#0B0B0C;color:var(--text);}
.cta-row{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-top:38px;}

/* HOME HERO */
.hero{display:grid;grid-template-columns:1.02fr .98fr;gap:40px;align-items:center;padding:88px 0 96px;}
.hero h1{font-size:clamp(40px,5vw,64px);line-height:1.04;}
.hero-sub{font-size:19px;color:var(--muted);max-width:46ch;margin-top:26px;line-height:1.55;}
.hero-meta{margin-top:46px;display:flex;gap:34px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;}
.hero-meta div{font-size:14px;color:var(--muted);}
.hero-meta b{display:block;font-weight:700;font-size:15px;color:var(--text);margin-bottom:3px;}
.hero-visual{position:relative;height:540px;background:radial-gradient(58% 58% at 50% 42%,rgba(236,232,225,.07),transparent 72%);}
model-viewer{width:100%;height:100%;--poster-color:transparent;background:transparent;}

/* INTERIOR PAGE HERO */
.page-hero{padding:78px 0 62px;border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(38px,4.6vw,56px);line-height:1.05;max-width:17ch;}
.page-hero .lead{font-size:19px;max-width:58ch;}
.page-hero.center{text-align:center;}
.page-hero.center h1,.page-hero.center .lead{margin-left:auto;margin-right:auto;}

/* PROSE */
.prose{max-width:70ch;}
.prose p{font-size:16.5px;color:var(--muted);line-height:1.72;margin-bottom:1.1rem;}
.prose h2{margin:2.4rem 0 1rem;}
.prose h3{font-size:20px;margin:1.8rem 0 .6rem;}
.prose ul{margin:0 0 1.3rem 1.1rem;}
.prose li{color:var(--muted);line-height:1.72;margin-bottom:.45rem;}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;}
.prose a:hover{color:var(--text);}

/* LOGO CAROUSEL (light band) */
.band{background:var(--band);color:#3a3630;padding:26px 0;overflow:hidden;}
.band .l{max-width:var(--maxw);margin:0 auto 18px;padding:0 40px;font-size:13px;color:#8a8378;}
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);}
.marquee-track{display:flex;align-items:center;gap:18px;width:max-content;animation:scroll 34s linear infinite;padding-left:64px;}
.logo-tile{background:#fff;border:1px solid rgba(58,54,48,.08);border-radius:8px;height:60px;width:148px;flex-shrink:0;display:flex;align-items:center;justify-content:center;padding:12px 18px;}
.logo-tile img{max-height:100%;max-width:100%;width:auto;height:auto;object-fit:contain;filter:grayscale(1);opacity:.72;}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* METRICS */
.metrics-in{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line);}
.metric{padding:56px 44px;border-right:1px solid var(--line);}
.metric:first-child{padding-left:0;}
.metric:last-child{border-right:0;padding-right:0;}
.metric b{font-weight:700;font-size:clamp(38px,4.2vw,52px);letter-spacing:-.02em;line-height:1.08;display:block;margin-bottom:14px;}
.metric span{font-size:15px;color:var(--muted);line-height:1.5;display:block;max-width:30ch;}

/* TWO-COLUMN (text + media) */
.two{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center;}
.two.rev>*:first-child{order:2;}
.stat-line{margin-top:36px;display:flex;gap:24px;align-items:flex-start;}
.stat-line b{font-weight:700;font-size:60px;line-height:.9;letter-spacing:-.03em;}
.stat-line p{font-size:15px;color:var(--muted);max-width:36ch;line-height:1.55;padding-top:8px;}
.diagram{border:1px solid var(--line);border-radius:6px;overflow:hidden;}
.diagram img{width:100%;height:auto;display:block;}
.media img{width:100%;height:440px;object-fit:cover;border-radius:6px;border:1px solid var(--line);}

/* FEATURE / NUMBERED GRID */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);}
.feat{padding:38px 44px 34px;border-right:1px solid var(--line);}
.feat:first-child{padding-left:0;}
.feat:last-child{border-right:0;padding-right:0;}
.feat .n{font-weight:700;font-size:15px;color:var(--accent);margin-bottom:20px;}
.feat h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.feat p{font-size:14.5px;color:var(--muted);line-height:1.55;}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cards.three{grid-template-columns:repeat(3,1fr);}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:6px;padding:34px;}
.card .rl{font-size:13px;color:var(--accent);margin-bottom:14px;}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:var(--muted);font-size:15px;line-height:1.62;}
.card ul{margin:14px 0 0 1.05rem;}
.card li{color:var(--muted);font-size:14.5px;line-height:1.5;margin-bottom:.35rem;}

/* ROUTER CARDS */
.route-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.route{background:var(--bg2);border:1px solid var(--line);border-radius:6px;padding:44px;min-height:260px;display:flex;flex-direction:column;transition:.18s;}
.route:hover{border-color:var(--line2);transform:translateY(-3px);}
.route .rl{font-size:14px;color:var(--accent);margin-bottom:18px;}
.route h3{font-size:25px;font-weight:700;margin-bottom:14px;}
.route p{font-size:15px;color:var(--muted);line-height:1.6;margin-bottom:auto;}
.route .go{margin-top:30px;font-weight:500;display:inline-flex;gap:8px;transition:gap .15s;}
.route:hover .go{gap:12px;color:var(--accent);}

/* STEPS */
.steps{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:6px;overflow:hidden;}
.step{background:var(--bg);padding:30px 32px;display:grid;grid-template-columns:52px 1fr;gap:22px;align-items:start;}
.step .sn{font-weight:700;color:var(--accent);font-size:22px;}
.step h3{font-size:18px;margin-bottom:7px;}
.step p{color:var(--muted);font-size:15px;line-height:1.62;}

/* SPEC TABLE */
.spec-table{width:100%;table-layout:fixed;border-collapse:collapse;border-top:1px solid var(--line);}
.spec-table th,.spec-table td{text-align:left;padding:17px 4px;border-bottom:1px solid var(--line);font-size:15.5px;vertical-align:top;word-wrap:break-word;}
.spec-table th{color:var(--faint);font-weight:500;width:34%;padding-right:24px;}
.spec-table td{color:var(--text);}
@media(max-width:600px){.spec-table th{width:38%;font-size:13.5px;}.spec-table td{font-size:13.5px;}}

/* QUOTE */
.quote{border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.quote blockquote{font-weight:500;font-size:clamp(25px,3.2vw,38px);line-height:1.32;letter-spacing:-.01em;max-width:22ch;}
.quote .qgrid{display:grid;grid-template-columns:1.5fr 1fr;gap:60px;align-items:center;}
.quote cite{font-style:normal;font-size:14px;color:var(--faint);display:block;margin-top:34px;}
.quote-img img{width:100%;height:380px;object-fit:cover;object-position:center 42%;border-radius:6px;border:1px solid var(--line);}

/* FORMS */
.form{max-width:660px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{width:100%;background:var(--bg2);border:1px solid var(--line2);border-radius:3px;color:var(--text);font-family:inherit;font-size:15px;padding:12px 14px;}
.field input::placeholder,.field textarea::placeholder{color:var(--faint);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}

/* JOURNAL */
.posts{border-top:1px solid var(--line);}
.post-row{display:grid;grid-template-columns:150px 1fr;gap:30px;padding:32px 0;border-bottom:1px solid var(--line);transition:.15s;}
.post-row:hover{background:rgba(255,255,255,.02);}
.post-row .date{color:var(--faint);font-size:14px;}
.post-row h3{font-size:22px;margin-bottom:9px;}
.post-row p{color:var(--muted);font-size:15px;line-height:1.62;max-width:62ch;}
.post-row .tag{color:var(--accent);font-size:13px;margin-bottom:10px;}
.article{max-width:720px;margin:0 auto;}
.article .meta{color:var(--faint);font-size:14px;margin-bottom:38px;}

/* CLOSING */
.close-card{background:var(--accent2);color:#171008;border-radius:8px;padding:76px;display:flex;justify-content:space-between;align-items:center;gap:44px;flex-wrap:wrap;}
.close-card h2{color:#171008;max-width:15ch;}

/* FOOTER */
footer{padding:76px 0 36px;border-top:1px solid var(--line);}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:50px;border-bottom:1px solid var(--line);}
.foot-brand .fb{font-weight:700;font-size:22px;color:var(--text);margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:32ch;line-height:1.55;}
.foot-col h4{font-size:13px;font-weight:600;color:var(--faint);margin-bottom:16px;}
.foot-col a{display:block;font-size:14px;color:var(--muted);margin-bottom:11px;transition:.15s;}
.foot-col a:hover{color:var(--text);}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:26px;font-size:13px;color:var(--faint);}
.foot-bottom a{color:var(--muted);}
.foot-bottom a:hover{color:var(--text);}

@media(max-width:960px){
  .wrap,.nav-in,.metrics-in{
    padding-left:max(20px, env(safe-area-inset-left));
    padding-right:max(20px, env(safe-area-inset-right));
  }
  .nav-toggle{display:flex;}
  .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;top:74px;left:0;right:0;
    height:calc(100vh - 74px);height:calc(100dvh - 74px);
    background:var(--bg);padding:8px 20px calc(28px + env(safe-area-inset-bottom));
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s,transform .2s,visibility .2s;
    overflow-y:auto;-webkit-overflow-scrolling:touch;
  }
  .nav-links.open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
  .nav-links a{font-size:17px;padding:16px 0;border-bottom:1px solid var(--line);}
  .nav-links a.nav-cta{margin-top:18px;text-align:center;border:1px solid var(--line2);}
  .hero{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .hero-visual{height:360px;}
  .metrics-in{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);padding:36px 0;}
  .metric:first-child{padding-left:0;}
  .two,.qgrid{grid-template-columns:1fr!important;gap:36px;}
  .two.rev>*:first-child{order:0;}
  .feat-grid{grid-template-columns:1fr;}
  .feat{border-right:0;border-bottom:1px solid var(--line);padding:30px 0;}
  .feat:last-child{border-bottom:0;}
  .cards,.cards.three,.route-grid,.form-row{grid-template-columns:1fr;}
  .close-card{padding:44px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .post-row{grid-template-columns:1fr;gap:8px;}
  section{padding:68px 0;}
}