/* vibratingscreenconveyor.com — warm graphite, brushed copper accents */
:root{
  color-scheme:dark;
  --ink-0:#0a0806;
  --ink-1:#110e0b;
  --ink-2:#17130f;
  --ink-3:#1f1a15;
  --ink-4:#2b241d;
  --paper:#f1e9dd;
  --mute:#c2b6a7;
  --dim:#948979;
  --copper:#c89f72;
  --copper-hi:#ead6b8;
  --copper-lo:#8f6c48;
  --rule:rgba(234,214,184,.12);
  --rule-2:rgba(234,214,184,.22);
  --rule-3:rgba(234,214,184,.36);
  --brush:linear-gradient(98deg,#7a5b3e 0%,#b08a62 20%,#e8d1ae 44%,#f5e6cf 52%,#c49d73 64%,#89673f 84%,#b08a62 100%);
  --brush-v:linear-gradient(180deg,#f6ead9 0%,#e6cfab 48%,#b48f66 100%);
  --font-sans:"Figtree",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --gutter:56px;
  --wrap:1240px;
  --bar-h:84px;
  --ease:cubic-bezier(.22,.68,.12,1);
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--ink-1);-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--ink-1);color:var(--paper);font-family:var(--font-sans);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0}
ul,ol{padding:0;list-style:none}
[id]{scroll-margin-top:calc(var(--bar-h) + 12px)}
:focus-visible{outline:2px solid var(--copper-hi);outline-offset:4px;border-radius:2px}
::selection{background:rgba(200,159,114,.38);color:#fff}
body::after{content:"";position:fixed;inset:0;z-index:200;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='g'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 .93  0 0 0 0 .85  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23g)'/></svg>")}

.wrap{width:min(100% - var(--gutter)*2,var(--wrap));margin-inline:auto}

.tag{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--copper)}
.tag--line::before{content:"";width:32px;height:1px;background:var(--brush);flex:none}
.idx{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;color:var(--copper);font-variant-numeric:tabular-nums}

.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:12px;height:54px;padding:0 26px;border-radius:3px;font:500 15px/1 var(--font-sans);white-space:nowrap;cursor:pointer;transition:background-position .9s var(--ease),border-color .4s,background-color .4s,color .4s;isolation:isolate}
.btn svg{width:16px;height:16px;flex:none;transition:transform .5s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn--copper{color:#1b140e;background:var(--brush);background-size:240% 100%;background-position:18% 0;box-shadow:inset 0 1px 0 rgba(255,250,240,.45),inset 0 -1px 0 rgba(60,40,20,.35)}
.btn--copper:hover{background-position:82% 0}
.btn--line{color:var(--paper);border:1px solid var(--rule-3);background:rgba(255,244,230,.025)}
.btn--line:hover{border-color:var(--copper);background:rgba(200,159,114,.08)}

/* top bar */
.bar{position:fixed;top:0;left:0;right:0;z-index:60;height:var(--bar-h);border-bottom:1px solid transparent;transition:background-color .5s var(--ease),border-color .5s}
.bar.is-scrolled{background:rgba(15,12,10,.78);-webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);border-bottom-color:var(--rule)}
.bar-in{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;gap:13px}
.brand svg{width:38px;height:38px;flex:none}
.brand-name{display:block;font-weight:500;font-size:16px;line-height:1.15;color:var(--paper);white-space:nowrap}
.brand-sub{display:block;margin-top:5px;font-family:var(--font-mono);font-size:9.5px;line-height:1;letter-spacing:.22em;text-transform:uppercase;color:var(--copper);white-space:nowrap}
.nav{display:flex;gap:30px;font-size:15px;color:var(--mute)}
.nav a{position:relative;padding:8px 0;transition:color .3s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:var(--brush);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.nav a:hover,.nav a[aria-current]{color:var(--paper)}
.nav a:hover::after,.nav a[aria-current]::after{transform:scaleX(1)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--rule-2);border-radius:3px;background:transparent;color:var(--paper);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle svg{width:20px;height:20px}

/* hero */
.hero{position:relative;isolation:isolate;overflow:clip;padding:calc(var(--bar-h) + 56px) 0 72px;
  background:radial-gradient(46% 58% at 74% 44%,rgba(210,170,126,.18) 0%,rgba(210,170,126,.06) 45%,rgba(210,170,126,0) 75%),
  radial-gradient(100% 80% at 60% 0%,#1c1814 0%,#13100d 58%,#0c0a08 100%)}
.hero::before{content:"";position:absolute;left:40%;right:0;top:0;bottom:20%;z-index:-1;pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(255,238,214,.055) 0 1px,rgba(255,238,214,0) 1px 4px,rgba(0,0,0,.1) 4px 5px,rgba(255,238,214,0) 5px 10px);
  -webkit-mask-image:radial-gradient(46% 58% at 50% 60%,#000 0%,rgba(0,0,0,.45) 50%,transparent 82%);mask-image:radial-gradient(46% 58% at 50% 60%,#000 0%,rgba(0,0,0,.45) 50%,transparent 82%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);align-items:center;gap:40px}
.hero h1{margin:26px 0 26px;font-weight:300;font-size:clamp(40px,6.2vw,88px);line-height:.98;letter-spacing:-.04em;background:var(--brush-v);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero h1 .ln{display:block}
.lead{max-width:30em;font-size:19px;line-height:1.6;color:var(--mute)}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-fig{position:relative}
.hero-fig svg{width:100%;height:auto;filter:drop-shadow(0 30px 34px rgba(0,0,0,.5))}
.hero-cap{display:flex;flex-direction:column;align-items:flex-end;gap:8px;text-align:right;margin-top:18px}
.hero-cap::before{content:"";width:52px;height:1px;background:var(--brush);margin-bottom:4px}
.hero-cap span{font-size:14px;color:var(--mute)}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero .tag,.hero h1 .ln,.lead,.actions,.hero-fig{animation:rise 1.1s var(--ease) both}
.hero h1 .ln:nth-child(2){animation-delay:.1s}.lead{animation-delay:.3s}.actions{animation-delay:.4s}.hero-fig{animation-delay:.2s}

/* page head (inner pages) */
.phead{padding:calc(var(--bar-h) + 48px) 0 44px;border-bottom:1px solid var(--rule);
  background:radial-gradient(60% 70% at 80% 0%,rgba(210,170,126,.12),rgba(210,170,126,0) 70%),var(--ink-1)}
.phead h1{margin-top:22px;font-weight:300;font-size:clamp(34px,4.6vw,62px);line-height:1.04;letter-spacing:-.035em;max-width:16em}
.phead .lead{margin-top:20px}
.crumbs{display:flex;flex-wrap:wrap;gap:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--dim)}
.crumbs a:hover{color:var(--copper)}
.crumbs span::before{content:"/";margin-right:10px;color:var(--rule-3)}

/* sections */
.sec{padding:clamp(64px,8vw,112px) 0}
.sec--tight{padding-top:clamp(40px,5vw,64px)}
.sec-head{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:32px;align-items:end;margin-bottom:clamp(32px,4vw,56px)}
.sec-head h2{font-weight:300;font-size:clamp(30px,3.8vw,50px);line-height:1.05;letter-spacing:-.03em;margin-top:18px}
.sec-head p{color:var(--mute);font-size:17px}

/* triptych */
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--rule);border-radius:4px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,244,230,.045) 0%,rgba(255,244,230,.015) 58%,rgba(255,244,230,.03) 100%);box-shadow:inset 0 1px 0 rgba(255,244,230,.07),0 40px 80px -40px rgba(0,0,0,.6)}
.cell{position:relative;isolation:isolate;display:flex;flex-direction:column;padding:28px 30px 34px;border-left:1px solid var(--rule);transition:background-color .6s var(--ease)}
.cell:first-child{border-left:0}
.cell::before{content:"";position:absolute;z-index:-1;left:4%;right:4%;top:0;height:70%;background:radial-gradient(46% 62% at 50% 46%,rgba(210,170,126,.14),rgba(210,170,126,0) 100%);opacity:.8;transition:opacity .6s,transform .9s var(--ease)}
.cell:hover{background-color:rgba(255,244,230,.025)}
.cell:hover::before{opacity:1;transform:scale(1.06)}
.cell-top{display:flex;justify-content:space-between;align-items:center}
.cell-fig{margin:26px 0 22px;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center}
.cell-fig svg{width:88%;height:auto}
.cell h3{font-weight:400;font-size:24px;letter-spacing:-.02em;line-height:1.15}
.cell p{margin-top:12px;color:var(--mute);font-size:15.5px;flex:1}
.cell .more{margin-top:22px;display:inline-flex;align-items:center;gap:10px;font-size:14.5px;color:var(--copper)}
.cell .more svg{width:15px;height:15px;transition:transform .4s var(--ease)}
.cell:hover .more svg{transform:translateX(4px)}

/* article body */
.article{display:grid;grid-template-columns:minmax(0,7.5fr) minmax(0,4.5fr);gap:clamp(40px,6vw,96px);align-items:start}
.prose{font-size:17.5px;line-height:1.72;color:var(--mute)}
.prose h2{margin:52px 0 16px;font-weight:400;font-size:clamp(24px,2.6vw,32px);letter-spacing:-.02em;line-height:1.2;color:var(--paper)}
.prose h2:first-child{margin-top:0}
.prose h3{margin:34px 0 10px;font-weight:500;font-size:19px;color:var(--paper)}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:1.2em}
.prose ul{list-style:disc}.prose ol{list-style:decimal}
.prose li{margin-bottom:8px;padding-left:4px}
.prose li::marker{color:var(--copper)}
.prose a{color:var(--copper-hi);border-bottom:1px solid var(--rule-3);transition:border-color .3s}
.prose a:hover{border-bottom-color:var(--copper)}
.prose figure{margin:32px 0}
.prose figure svg{width:100%;height:auto}
.prose figcaption{margin-top:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:var(--dim)}
.prose strong{color:var(--paper);font-weight:500}
.prose table{width:100%;border-collapse:collapse;margin:8px 0 24px;font-size:15.5px}
.prose th,.prose td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--rule);vertical-align:top}
.prose th{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--copper);font-weight:400}
.aside{position:sticky;top:calc(var(--bar-h) + 24px);display:flex;flex-direction:column;gap:28px}
.panel{border:1px solid var(--rule);border-radius:4px;padding:24px 26px;background:linear-gradient(180deg,rgba(255,244,230,.04),rgba(255,244,230,.012))}
.panel h3{font-weight:500;font-size:14px;letter-spacing:.02em;color:var(--paper);margin-bottom:14px}
.panel .tag{margin-bottom:14px}
.spec-row{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-top:1px solid var(--rule);font-size:14.5px}
.spec-row:first-child{border-top:0}
.spec-row dt{color:var(--dim)}
.spec-row dd{margin:0;text-align:right;color:var(--paper)}
.links{display:flex;flex-direction:column}
.links a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--rule);font-size:15px;color:var(--mute);transition:color .3s}
.links a:first-child{border-top:0}
.links a:hover{color:var(--paper)}
.links a svg{width:14px;height:14px;color:var(--copper);flex:none}
.links a[aria-current]{color:var(--copper-hi)}

/* step list */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:4px;overflow:hidden}
.step{background:var(--ink-2);padding:28px 26px 30px}
.step .idx{display:block;margin-bottom:14px}
.step h3{font-weight:400;font-size:19px;line-height:1.3}
.step p{margin-top:10px;font-size:15px;color:var(--mute)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{display:flex;flex-direction:column;padding:26px 26px 28px;border:1px solid var(--rule);border-radius:4px;background:linear-gradient(180deg,rgba(255,244,230,.04),rgba(255,244,230,.012));transition:border-color .4s,transform .5s var(--ease)}
.card:hover{border-color:var(--rule-3);transform:translateY(-3px)}
.card .meta{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--copper)}
.card h3{margin-top:16px;font-weight:400;font-size:21px;letter-spacing:-.015em;line-height:1.25}
.card p{margin-top:12px;color:var(--mute);font-size:15px;flex:1}
.card .more{margin-top:20px;font-size:14px;color:var(--copper)}

/* strip */
.strip{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);background:linear-gradient(180deg,var(--ink-2),var(--ink-1))}
.strip-in{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding:34px 0}
.strip h2{font-weight:300;font-size:clamp(22px,2.6vw,32px);letter-spacing:-.025em}
.strip p{color:var(--mute);font-size:16px;max-width:36em}

/* terms */
.terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:4px;overflow:hidden}
.term{background:var(--ink-2);padding:24px 26px}
.term dt{font-weight:500;font-size:17px;color:var(--paper)}
.term dd{margin:8px 0 0;font-size:15px;color:var(--mute)}

/* footer */
.foot{border-top:1px solid var(--rule);background:linear-gradient(180deg,var(--ink-1),var(--ink-0));padding:64px 0 36px}
.foot-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px}
.foot-note{margin-top:14px;color:var(--mute);font-size:15.5px;max-width:30em}
.foot-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.foot-cols h3{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--copper);font-weight:400;margin-bottom:14px}
.foot-cols a{display:block;padding:5px 0;font-size:15px;color:var(--mute);transition:color .3s}
.foot-cols a:hover{color:var(--paper)}
.foot-base{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:52px;padding-top:24px;border-top:1px solid var(--rule);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--dim)}

.notfound{min-height:70vh;display:flex;align-items:center}

@media (max-width:1024px){
  :root{--gutter:36px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-fig{max-width:620px}
  .trio,.steps,.cards{grid-template-columns:1fr}
  .cell{border-left:0;border-top:1px solid var(--rule)}
  .cell:first-child{border-top:0}
  .article{grid-template-columns:1fr}
  .aside{position:static}
  .sec-head{grid-template-columns:1fr;gap:14px}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  :root{--gutter:16px;--bar-h:68px}
  body{font-size:16px}
  .nav{display:none;position:fixed;top:var(--bar-h);left:0;right:0;flex-direction:column;gap:0;padding:8px 16px 18px;background:rgba(14,11,9,.97);border-bottom:1px solid var(--rule)}
  .nav.is-open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--rule);font-size:17px}
  .nav-toggle{display:inline-flex}
  .brand-sub{display:none}
  .hero{padding-top:calc(var(--bar-h) + 32px)}
  .hero h1{font-size:clamp(36px,11vw,52px)}
  .lead{font-size:17px}
  .actions .btn{width:100%}
  .foot-cols{grid-template-columns:1fr 1fr}
  .terms{grid-template-columns:1fr}
  .prose{font-size:16.5px}
  .prose table{display:block;overflow-x:auto}
}