/* ============================================================
   ORBIT FOLD — premium hardware site
   Design tokens, typography, layout, components.
============================================================ */
:root{
  --bg:#0e0f10;
  --bg-2:#141517;
  --bg-3:#1a1c1f;
  --panel:#16181b;
  --line:rgba(255,255,255,.06);
  --line-2:rgba(255,255,255,.10);
  --ink:#ececec;
  --ink-2:#b8b8b8;
  --ink-3:#7f8084;
  --ink-4:#55585c;
  --accent:#d9b384;       /* warm brushed-aluminium highlight */
  --accent-2:#e8c89d;
  --graphite:#22262a;
  --graphite-2:#2c3034;
  --radius:2px;
  --radius-lg:6px;
  --maxw:1280px;
  --pad:clamp(20px,4vw,56px);
  --easing:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{
  font-family:'Inter',ui-sans-serif,system-ui,-apple-system,sans-serif;
  font-weight:400;font-size:16px;line-height:1.55;letter-spacing:.01em;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--accent);color:#111}

/* ---------- Typography ---------- */
h1,h2,h3,h4,h5,h6{font-weight:400;letter-spacing:-.01em;line-height:1.08}
.display{
  font-family:'Fraunces',Georgia,serif;
  font-weight:300;font-size:clamp(44px,7.4vw,116px);
  letter-spacing:-.025em;line-height:.98;
}
.h2{font-family:'Fraunces',Georgia,serif;font-weight:300;font-size:clamp(32px,4.2vw,60px);letter-spacing:-.02em;line-height:1.04}
.h3{font-family:'Fraunces',Georgia,serif;font-weight:300;font-size:clamp(24px,2.6vw,36px);letter-spacing:-.015em}
.eyebrow{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.lede{font-size:clamp(16px,1.35vw,19px);color:var(--ink-2);max-width:62ch;line-height:1.65}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;letter-spacing:.04em;color:var(--ink-3)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
section{padding:clamp(80px,11vw,160px) 0;position:relative}
.section-head{display:flex;flex-direction:column;gap:18px;max-width:760px;margin-bottom:64px}
.divider{height:1px;background:var(--line);width:100%}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--pad);
  background:rgba(14,15,16,.55);
  backdrop-filter:blur(18px) saturate(1.1);
  -webkit-backdrop-filter:blur(18px) saturate(1.1);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px}
.brand-name{font-size:12px;letter-spacing:.34em;font-weight:500}
.brand-mark{
  width:18px;height:18px;border-radius:50%;
  background:
    radial-gradient(circle at 35% 30%, #d9b384 0%, #8a6f4f 38%, #2a2622 65%, #0e0f10 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.brand-mark.small{width:12px;height:12px}
.primary-nav{display:flex;gap:32px}
.primary-nav a{font-size:12.5px;letter-spacing:.06em;color:var(--ink-2);transition:color .3s var(--easing);position:relative;padding:8px 0}
.primary-nav a:hover{color:var(--ink)}
.primary-nav a.is-active{color:var(--ink)}
.primary-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);
}
.nav-toggle{display:none;width:28px;height:28px;flex-direction:column;justify-content:center;gap:5px}
.nav-toggle span{display:block;height:1px;background:var(--ink);width:22px;transition:transform .35s var(--easing)}
.mobile-nav{display:none}
@media (max-width:880px){
  .primary-nav{display:none}
  .nav-toggle{display:flex}
  .mobile-nav{
    display:flex;flex-direction:column;gap:0;position:fixed;top:64px;left:0;right:0;
    background:var(--bg-2);border-bottom:1px solid var(--line);z-index:49;
    transform:translateY(-110%);transition:transform .5s var(--easing);
  }
  .mobile-nav.is-open{transform:translateY(0)}
  .mobile-nav a{padding:18px var(--pad);border-top:1px solid var(--line);font-size:13px;letter-spacing:.08em;color:var(--ink-2)}
}

/* ---------- Hero ---------- */
.hero{
  min-height:100vh;display:flex;flex-direction:column;justify-content:flex-end;
  padding-top:160px;padding-bottom:80px;position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(1200px 700px at 70% 35%, rgba(217,179,132,.10), transparent 60%),
    radial-gradient(900px 700px at 20% 80%, rgba(255,255,255,.04), transparent 60%),
    linear-gradient(180deg,#0c0d0e 0%, #101113 100%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:end}
.hero-copy h1{margin-top:24px}
.hero-meta{display:flex;gap:40px;margin-top:48px;flex-wrap:wrap}
.hero-meta div{display:flex;flex-direction:column;gap:4px;min-width:140px}
.hero-meta b{font-weight:500;font-size:14px;color:var(--ink)}
.hero-meta span{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.hero-visual{position:relative;aspect-ratio:1/1.05;min-height:480px}
.hero-visual .stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.hero-scroll{position:absolute;left:var(--pad);bottom:24px;display:flex;align-items:center;gap:14px;font-size:11px;letter-spacing:.22em;color:var(--ink-3);text-transform:uppercase}
.hero-scroll .bar{width:1px;height:42px;background:linear-gradient(180deg,var(--accent),transparent)}
@media (max-width:880px){.hero-inner{grid-template-columns:1fr;gap:40px}.hero-visual{min-height:360px;order:-1}}

/* ---------- Product render (SVG container) ---------- */
.render{
  width:100%;height:100%;display:block;
  filter:drop-shadow(0 60px 80px rgba(0,0,0,.55)) drop-shadow(0 10px 20px rgba(0,0,0,.4));
}
.render-card{
  position:relative;background:linear-gradient(180deg,#141618,#0f1112);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.render-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(800px 400px at 30% 20%, rgba(217,179,132,.08), transparent 60%),
    radial-gradient(400px 300px at 80% 90%, rgba(255,255,255,.04), transparent 60%);
}
.render-card .render{padding:8%}

/* ---------- Marquee / spec strip ---------- */
.strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;padding:28px var(--pad);
  font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3);
  background:linear-gradient(180deg,#0f1012,#0c0d0e);
}
.strip span{display:inline-flex;align-items:center;gap:10px}
.strip span::before{content:"";width:5px;height:5px;background:var(--accent);border-radius:50%;opacity:.85}
@media (max-width:760px){.strip{flex-wrap:wrap;gap:18px;justify-content:flex-start}}

/* ---------- Grids ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,72px);align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.4vw,40px)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2vw,32px)}
@media (max-width:880px){.grid-2{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr 1fr}.grid-4{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.grid-3,.grid-4{grid-template-columns:1fr}}

/* ---------- Feature card ---------- */
.feature{
  padding:36px 30px 32px;background:linear-gradient(180deg,#15171a,#101214);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  display:flex;flex-direction:column;gap:14px;min-height:240px;
  transition:border-color .4s var(--easing), transform .6s var(--easing);
}
.feature:hover{border-color:var(--line-2);transform:translateY(-2px)}
.feature .idx{font-size:11px;letter-spacing:.22em;color:var(--ink-4)}
.feature h4{font-size:18px;font-weight:500;letter-spacing:-.005em}
.feature p{color:var(--ink-2);font-size:14.5px;line-height:1.6}

/* ---------- Two-column module ---------- */
.module{padding:clamp(60px,8vw,120px) 0}
.module .copy h2{margin-bottom:24px}
.module .copy p{color:var(--ink-2);max-width:50ch}
.module .visual{position:relative;aspect-ratio:5/4;background:linear-gradient(180deg,#141618,#0f1112);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.module.reverse .visual{order:-1}
@media (max-width:880px){.module.reverse .visual{order:0}}

/* ---------- Buttons & links ---------- */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:14px 22px;border:1px solid var(--line-2);border-radius:999px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  transition:background .35s var(--easing), color .35s var(--easing), border-color .35s var(--easing);
}
.btn:hover{background:var(--ink);color:#0f1012;border-color:var(--ink)}
.btn.ghost{border-color:var(--line)}
.btn .arrow{width:14px;height:1px;background:currentColor;position:relative}
.btn .arrow::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-right:1px solid currentColor;border-top:1px solid currentColor;transform:rotate(45deg)}

.link-arrow{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:13px;letter-spacing:.08em;border-bottom:1px solid var(--line-2);padding-bottom:6px}
.link-arrow:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- Spec table ---------- */
.spec-table{width:100%;border-top:1px solid var(--line)}
.spec-row{display:grid;grid-template-columns:1fr 2fr;gap:32px;padding:24px 0;border-bottom:1px solid var(--line)}
.spec-row dt{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}
.spec-row dd{color:var(--ink);font-size:15.5px;line-height:1.55}
.spec-row dd small{display:block;color:var(--ink-3);font-size:12.5px;margin-top:4px}
@media (max-width:680px){.spec-row{grid-template-columns:1fr;gap:6px}}

/* ---------- Pull quote ---------- */
.pullquote{
  font-family:'Fraunces',Georgia,serif;font-weight:300;
  font-size:clamp(26px,3.4vw,46px);line-height:1.18;letter-spacing:-.015em;
  color:var(--ink);max-width:22ch;
}
.pullquote .acc{color:var(--accent)}

/* ---------- Steps / dev timeline ---------- */
.steps{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:120px 220px 1fr;gap:32px;padding:36px 0;border-bottom:1px solid var(--line);align-items:start}
.step .n{font-family:'Fraunces',serif;font-size:36px;color:var(--ink-3);font-weight:300}
.step h4{font-size:18px;font-weight:500;letter-spacing:-.005em}
.step p{color:var(--ink-2);font-size:14.5px;max-width:60ch}
@media (max-width:760px){.step{grid-template-columns:60px 1fr;}.step .meta-col{grid-column:1/-1;margin-top:-12px}}

/* ---------- Material chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2);
  padding:7px 12px;border:1px solid var(--line-2);border-radius:999px;
}

/* ---------- Form ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.form .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3)}
.field input,.field textarea,.field select{
  background:transparent;border:0;border-bottom:1px solid var(--line-2);color:var(--ink);
  padding:12px 0;font:inherit;font-size:15px;outline:none;transition:border-color .3s var(--easing);
}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--accent)}
.field textarea{resize:vertical;min-height:120px}
@media (max-width:680px){.form{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:80px var(--pad) 40px;background:#0a0b0c}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;max-width:var(--maxw);margin:0 auto}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col h6{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3);margin-bottom:6px;font-weight:500}
.footer-col a{font-size:13.5px;color:var(--ink-2);transition:color .3s var(--easing)}
.footer-col a:hover{color:var(--ink)}
.footer-tag{color:var(--ink-2);font-size:13.5px;max-width:28ch}
.meta{font-size:12.5px;color:var(--ink-3);line-height:1.6}
.legal{margin-top:18px;font-size:11.5px;color:var(--ink-4);letter-spacing:.04em}
@media (max-width:880px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}

/* ---------- Reveal animation ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity 1.1s var(--easing),transform 1.1s var(--easing)}
[data-reveal].is-in{opacity:1;transform:none}
.site-header[data-reveal]{transition-delay:.1s}

/* ---------- Page intro ---------- */
.page-intro{padding:170px 0 60px}
.page-intro .display{max-width:18ch}
.page-intro .lede{margin-top:24px}

/* ---------- Index list ---------- */
.idx-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.idx-list a{display:grid;grid-template-columns:60px 1fr auto;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:center;transition:padding .4s var(--easing)}
.idx-list a:hover{padding-left:8px}
.idx-list .n{font-family:'Fraunces',serif;font-size:18px;color:var(--ink-3);font-weight:300}
.idx-list .t{font-size:18px;letter-spacing:-.005em}
.idx-list .a{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- Detail tag ---------- */
.tag{position:absolute;display:flex;align-items:center;gap:8px;font-family:ui-monospace,monospace;font-size:10.5px;letter-spacing:.12em;color:var(--ink-2);text-transform:uppercase}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(217,179,132,.12)}
.tag .ln{width:54px;height:1px;background:var(--line-2)}

/* ---------- Misc ---------- */
.kbd{font-family:ui-monospace,monospace;font-size:11px;border:1px solid var(--line-2);padding:3px 7px;border-radius:3px;color:var(--ink-2)}
.callout{padding:32px;background:linear-gradient(180deg,#141618,#101214);border:1px solid var(--line);border-radius:var(--radius-lg)}
.callout h5{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink);margin-bottom:10px;font-weight:500}
.callout p{color:var(--ink-2);font-size:14px}