/* ============================================================
   ABDULLAH KHAN — RUN DEM LABS LLC
   Design system: "Executive Briefing"
   ============================================================ */

:root{
  --ink:        #0E1A2B;
  --ink-2:      #14233A;
  --paper:      #F4F5F1;
  --paper-2:    #EAEBE4;
  --graphite:   #232B36;
  --muted:      #5B6472;
  --muted-lt:   #8B93A0;
  --gold:       #B9922F;
  --gold-lt:    #D8B85C;
  --slate:      #3E5C76;
  --line:       #D8D6CC;
  --line-dark:  rgba(255,255,255,0.14);
  --white:      #FFFFFF;

  --serif:  "Newsreader", Georgia, serif;
  --sans:   "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:   "IBM Plex Mono", "SF Mono", monospace;

  --maxw: 1180px;
  --gutter: 32px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--graphite);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{font-family:inherit;}

.wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- Scroll progress ---------- */
.progress{
  position:fixed;top:0;left:0;height:3px;background:var(--gold);
  width:0%;z-index:999;transition:width .1s linear;
}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--ink);color:var(--white);
  padding:10px 16px;z-index:1000;
}
.skip-link:focus{left:8px;top:8px;}

/* ---------- Nav ---------- */
header.site-nav{
  position:sticky;top:0;z-index:100;
  background:rgba(244,245,241,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--gutter);max-width:var(--maxw);margin:0 auto;
}
.brand{
  font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:.2px;
  display:flex;align-items:baseline;gap:8px;
}
.brand .mark{
  font-family:var(--mono);font-size:11px;color:var(--gold);
  border:1px solid var(--gold);padding:2px 6px;border-radius:2px;letter-spacing:.08em;
}
nav.links{display:flex;gap:30px;align-items:center;}
nav.links a{
  font-size:13.5px;font-weight:500;color:var(--graphite);
  letter-spacing:.02em;position:relative;padding:4px 0;
}
nav.links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--gold);
  transition:width .2s ease;
}
nav.links a:hover::after,nav.links a[aria-current="page"]::after{width:100%;}
.nav-cta{
  font-family:var(--mono);font-size:12.5px;font-weight:600;color:var(--white);
  background:var(--ink);padding:11px 18px;border-radius:2px;letter-spacing:.03em;
  white-space:nowrap;
}
.nav-cta:hover{background:var(--slate);}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;}
.menu-toggle span{display:block;width:22px;height:1.5px;background:var(--ink);margin:5px 0;}

/* ---------- Section index (signature structural device) ---------- */
.section{position:relative;padding:96px 0;border-bottom:1px solid var(--line);}
.section.dark{background:var(--ink);color:var(--paper);border-bottom:1px solid var(--line-dark);}
.section.dark .muted{color:var(--muted-lt);}
.section-index{
  font-family:var(--mono);font-size:12px;color:var(--gold);letter-spacing:.1em;
  display:flex;align-items:center;gap:10px;margin-bottom:22px;text-transform:uppercase;
}
.section-index::before{content:"";width:26px;height:1px;background:var(--gold);}

.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);
}
.dark .eyebrow{color:var(--muted-lt);}

h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.15;color:var(--ink);}
.dark h1,.dark h2,.dark h3,.dark h4{color:var(--paper);}
h1{font-size:56px;font-weight:600;letter-spacing:-.01em;}
h2{font-size:38px;font-weight:600;}
h3{font-size:24px;}
p{color:var(--graphite);}
.dark p{color:var(--paper-2);}
.lede{font-size:19px;color:var(--muted);max-width:640px;}
.dark .lede{color:var(--muted-lt);}
.muted{color:var(--muted);}

.grid-2{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.03em;
  padding:15px 26px;border-radius:2px;border:1px solid transparent;cursor:pointer;
  transition:all .18s ease;
}
.btn-primary{background:var(--gold);color:var(--ink);}
.btn-primary:hover{background:var(--gold-lt);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}
.dark .btn-ghost{border:1px solid var(--paper-2);color:var(--paper);}
.dark .btn-ghost:hover{background:var(--paper);color:var(--ink);}
.btn-arrow{transition:transform .18s ease;}
.btn:hover .btn-arrow{transform:translateX(3px);}

/* ---------- Hero ---------- */
.hero{padding:64px 0 0;border-bottom:none;}
.hero-top{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;padding-bottom:56px;}
.hero h1{margin:18px 0 22px;}
.hero-cta-row{display:flex;gap:16px;align-items:center;margin-top:32px;flex-wrap:wrap;}
.hero-note{font-family:var(--mono);font-size:12px;color:var(--muted);}
.hero-portrait{
  aspect-ratio:4/5;background:linear-gradient(160deg,#1c2c42,#0E1A2B 70%);
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.hero-portrait .frame-label{
  position:absolute;bottom:0;left:0;right:0;padding:16px 18px;
  background:rgba(14,26,43,.55);backdrop-filter:blur(3px);
  font-family:var(--mono);font-size:11.5px;color:var(--paper-2);letter-spacing:.03em;
  border-top:1px solid var(--line-dark);
}
.hero-portrait img,.hero-portrait svg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.95;}
.about-photo img{width:100%;height:100%;object-fit:cover;display:block;}

/* ---------- Ticker (signature element) ---------- */
.ticker-wrap{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--ink);overflow:hidden;white-space:nowrap;
}
.ticker{display:inline-flex;animation:scroll-left 38s linear infinite;padding:14px 0;}
.ticker:hover{animation-play-state:paused;}
.ticker span{
  font-family:var(--mono);font-size:13px;color:var(--paper-2);padding:0 34px;
  border-right:1px solid var(--line-dark);letter-spacing:.02em;
}
.ticker span b{color:var(--gold);}
@keyframes scroll-left{0%{transform:translateX(0);}100%{transform:translateX(-50%);}}

/* ---------- Logos ---------- */
.logo-row{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:32px 40px;opacity:.85;}
.logo-row .lg{font-family:var(--serif);font-size:19px;color:var(--muted);letter-spacing:.02em;}
.logo-row img{height:36px;width:auto;max-width:140px;object-fit:contain;filter:grayscale(100%);opacity:.8;transition:opacity .2s,filter .2s;}
.logo-row img:hover{filter:none;opacity:1;}
.logo-row .lg-text{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;}
.cert-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.cert-tag{font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);padding:6px 10px;border-radius:2px;}
.dark .cert-tag{border-color:var(--line-dark);color:var(--muted-lt);}

/* ---------- Metrics ---------- */
.metric{border-top:1px solid var(--line);padding-top:18px;}
.dark .metric{border-top:1px solid var(--line-dark);}
.metric .num{font-family:var(--mono);font-size:40px;color:var(--ink);font-weight:600;}
.dark .metric .num{color:var(--gold);}
.metric .label{font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- Cards ---------- */
.card{background:var(--white);border:1px solid var(--line);padding:32px;position:relative;}
.dark .card{background:var(--ink-2);border:1px solid var(--line-dark);}
.card .tag{font-family:var(--mono);font-size:11px;color:var(--gold);letter-spacing:.08em;text-transform:uppercase;}
.card h3{margin:14px 0 10px;font-size:20px;}
.card p{font-size:14.5px;color:var(--muted);}

.service-card{border-top:2px solid var(--ink);padding:28px 0 0;}
.service-card .num{font-family:var(--mono);font-size:12px;color:var(--gold);}
.service-card h3{margin:10px 0 8px;font-size:19px;}
.service-card p{font-size:14.5px;color:var(--muted);}

/* ---------- Process ---------- */
.process-item{display:grid;grid-template-columns:70px 1fr;gap:24px;padding:28px 0;border-top:1px solid var(--line);}
.process-item .step{font-family:var(--mono);font-size:13px;color:var(--gold);}
.process-item h4{font-size:19px;margin-bottom:6px;}
.process-item p{color:var(--muted);font-size:14.5px;max-width:520px;}

/* ---------- Comparison table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);}
table{width:100%;border-collapse:collapse;background:var(--white);min-width:760px;}
th,td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14px;}
th{font-family:var(--mono);font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--paper-2);}
td.you{background:#FBF6E9;font-weight:600;}
tr:last-child td{border-bottom:none;}
.check{color:var(--slate);}
.dash{color:var(--muted-lt);}

/* ---------- Testimonial ---------- */
.quote-card{border-left:2px solid var(--gold);padding-left:28px;}
.quote-card p.q{font-family:var(--serif);font-size:22px;font-style:italic;color:var(--ink);line-height:1.45;}
.dark .quote-card p.q{color:var(--paper);}
.quote-attr{margin-top:16px;font-size:13.5px;color:var(--muted);}
.quote-attr b{color:var(--ink);}
.dark .quote-attr b{color:var(--paper);}
.dark .quote-attr{color:var(--muted-lt);}

/* ---------- FAQ (details/summary) ---------- */
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 0;display:flex;justify-content:space-between;
  align-items:baseline;gap:20px;font-size:16.5px;font-weight:500;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{font-family:var(--mono);color:var(--gold);font-size:18px;transition:transform .2s;}
.faq-item[open] summary .plus{transform:rotate(45deg);}
.faq-item .faq-a{padding:0 0 24px;color:var(--muted);font-size:15px;max-width:700px;}

/* ---------- Forms ---------- */
.field{margin-bottom:18px;}
.field label{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border:1px solid var(--line);background:var(--white);
  font-family:var(--sans);font-size:14.5px;color:var(--graphite);border-radius:2px;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--gold);outline-offset:1px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-note{font-size:12.5px;color:var(--muted-lt);margin-top:6px;}

/* ---------- Sticky CTA bar ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:-100px;z-index:200;
  background:var(--ink);border-top:1px solid var(--line-dark);
  transition:bottom .3s ease;
}
.sticky-cta.show{bottom:0;}
.sticky-cta .wrap{display:flex;align-items:center;justify-content:space-between;padding:16px var(--gutter);gap:20px;}
.sticky-cta .msg{color:var(--paper);font-size:14px;}
.sticky-cta .msg strong{color:var(--gold);}
.sticky-cta .close{background:none;border:none;color:var(--muted-lt);cursor:pointer;font-size:20px;line-height:1;padding:4px;}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:var(--paper-2);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line-dark);}
footer h5{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-lt);margin-bottom:16px;}
footer a{display:block;font-size:14px;color:var(--paper-2);margin-bottom:10px;}
footer a:hover{color:var(--gold);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:12.5px;color:var(--muted-lt);flex-wrap:wrap;gap:12px;}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .ticker{animation:none;}
}

/* ---------- Page header (subpages) ---------- */
.page-header{padding:150px 0 70px;background:var(--ink);color:var(--paper);}
.page-header .eyebrow{color:var(--gold);}
.page-header h1{font-size:44px;color:var(--paper);}
.page-header p{color:var(--muted-lt);max-width:620px;margin-top:16px;}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  h1{font-size:38px;}
  h2{font-size:29px;}
  .grid-2{grid-template-columns:1fr;gap:36px;}
  .grid-3{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:1fr 1fr;}
  .hero-top{grid-template-columns:1fr;}
  .hero-portrait{order:-1;max-width:320px;}
  nav.links{
    position:fixed;top:0;right:-100%;height:100vh;width:280px;background:var(--ink);
    flex-direction:column;justify-content:flex-start;align-items:flex-start;
    padding:100px 28px 28px;transition:right .3s ease;z-index:150;
  }
  nav.links.open{right:0;}
  nav.links a{color:var(--paper);font-size:16px;}
  nav.links .nav-cta{margin-top:20px;}
  .menu-toggle{display:block;}
  .field-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .process-item{grid-template-columns:1fr;gap:8px;}
}