/* Zeus Software — case study base styles
   Tokens + nav + hero + sec-head + grid/cube + stack + pitch + CTA + footer + reveal.
   Page-specific hero animations and bespoke section variants stay inline. */

:root{
  --bg:      #0b0a09;
  --bg-2:    #14110f;
  --ink:     #f3ece1;
  --ink-2:   #c9c0b1;
  --ink-3:   #9c9486;
  --rule:    rgba(243,236,225,.13);
  --accent:  #e8542a;

  --serif:   "Fraunces", "Times New Roman", serif;
  --sans:    "Inter Tight", ui-sans-serif, system-ui, sans-serif;

  --container: 1280px;
  --pad: 40px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.55;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:#fff}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
@media (max-width:760px){:root{--pad:22px}}

/* keyboard focus — WCAG 2.4.7 */
a:focus-visible,
button:focus-visible,
.btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:2px;
}

/* tag pill ─────────────────────────────────── */
.tag{
  font-family:var(--sans);font-size:12.5px;font-weight:500;letter-spacing:.04em;
  color:var(--ink-3);display:inline-flex;align-items:center;gap:12px;
}
.tag b{color:var(--accent);font-weight:500}
.tag::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%}

/* nav ──────────────────────────────────────── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(11,10,9,.78);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--rule);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand-logo{height:26px;width:auto}
.nav-links{display:flex;gap:32px}
.nav-links a{font-size:14px;color:var(--ink-2)}
.nav-links a:hover{color:var(--ink)}
.nav-cta{font-size:14px;color:var(--ink)}
.nav-cta:hover{color:var(--accent)}
@media (max-width:760px){.nav-links{display:none}}

/* breadcrumb ───────────────────────────────── */
.crumb{padding-top:96px;font-size:13px;color:var(--ink-3)}
.crumb a:hover{color:var(--accent)}
.crumb span{margin:0 10px}

/* hero base ────────────────────────────────── */
.hero{padding:140px 0 80px;position:relative;overflow:hidden}
.hero .wrap{position:relative;z-index:2}
.hero .tag{margin-bottom:36px}
h1{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(56px, 10vw, 152px);
  line-height:.92;letter-spacing:-.025em;
  margin:0;text-wrap:balance;
}
h1 em{font-style:italic;color:var(--ink-2);font-weight:400}
.hero-sub{
  margin:48px 0 0;font-family:var(--serif);font-style:italic;font-weight:300;
  font-size:clamp(22px,2.4vw,32px);line-height:1.35;color:var(--ink-2);
  max-width:32ch;
}

/* meta dl ──────────────────────────────────── */
.meta{
  margin-top:80px;
  display:grid;grid-template-columns:repeat(5,1fr);
  border-top:1px solid var(--rule);
}
@media (max-width:880px){.meta{grid-template-columns:repeat(2,1fr)}}
.meta div{padding:18px 0;border-bottom:1px solid var(--rule)}
.meta dt{font-size:12.5px;color:var(--ink-3);margin-bottom:6px}
.meta dd{margin:0;font-size:15px;color:var(--ink)}
.meta dd em{font-style:italic;color:var(--accent);font-family:var(--serif);font-weight:400;margin-right:4px}

/* section ──────────────────────────────────── */
section{padding:110px 0;border-top:1px solid var(--rule)}
.sec-head{
  display:grid;grid-template-columns:1fr 2fr;gap:60px;margin-bottom:56px;
  align-items:start;
}
@media (max-width:880px){.sec-head{grid-template-columns:1fr;gap:24px;margin-bottom:40px}}
.sec-num{
  font-family:var(--serif);font-style:italic;font-weight:300;
  font-size:32px;color:var(--accent);line-height:1;
}
.sec-head h2{
  margin:18px 0 0;font-family:var(--serif);font-weight:300;
  font-size:clamp(36px,4.8vw,68px);line-height:1;letter-spacing:-.02em;
  text-wrap:balance;
}
.sec-head h2 em{font-style:italic;color:var(--ink-2);font-weight:400}
.sec-head p{margin:0;color:var(--ink-2);font-size:17px;max-width:50ch;line-height:1.6}

/* cube grid ────────────────────────────────── */
.grid{display:grid;border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr}}
@media (max-width:560px){.grid-4{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}

.cube{
  position:relative;
  border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);
  padding:32px 28px 28px;aspect-ratio:1/1;
  display:flex;flex-direction:column;justify-content:space-between;
  transition:background .35s ease;
  overflow:hidden;
}
.cube:hover{background:var(--bg-2)}
.cube-n{
  font-family:var(--serif);font-style:italic;font-weight:300;
  font-size:22px;color:var(--ink-3);line-height:1;
}
.cube h3{
  font-family:var(--serif);font-weight:400;font-size:26px;
  letter-spacing:-.005em;line-height:1.1;margin:0 0 10px;
}
.cube h3 em{font-style:italic;color:var(--ink-2)}
.cube p{margin:0;color:var(--ink-2);font-size:14px;line-height:1.55}
.cube-bot{display:flex;flex-direction:column;gap:10px}
.cube.is-mark{background:linear-gradient(180deg, rgba(232,84,42,.06), transparent 70%)}
.cube.is-mark .cube-n{color:var(--accent)}

/* stack tiles ──────────────────────────────── */
.stack{
  display:grid;grid-template-columns:repeat(6,1fr);
  border-top:1px solid var(--rule);border-left:1px solid var(--rule);
}
@media (max-width:980px){.stack{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.stack{grid-template-columns:repeat(2,1fr)}}
.stack div{
  aspect-ratio:1.4/1;padding:18px 18px 16px;
  border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);
  display:flex;flex-direction:column;justify-content:space-between;
  transition:background .25s ease;
}
.stack div:hover{background:var(--bg-2)}
.stack-cat{font-size:11.5px;color:var(--ink-3);letter-spacing:.04em}
.stack-name{font-family:var(--serif);font-size:19px;font-weight:400;line-height:1.1;letter-spacing:-.005em}

/* pitch quote ──────────────────────────────── */
.pitch q{
  quotes:none;
  font-family:var(--serif);font-weight:300;
  font-size:clamp(28px,3.6vw,52px);line-height:1.18;letter-spacing:-.01em;
  max-width:24ch;display:block;text-wrap:balance;
}
.pitch q em{font-style:italic;color:var(--ink-2)}
.pitch q::before{content:"\201C";color:var(--accent);font-size:1em;margin-right:.04em}

.pitch p{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(28px,3.6vw,52px);line-height:1.18;letter-spacing:-.01em;
  max-width:24ch;margin:0;text-wrap:balance;
}
.pitch p em{font-style:italic;color:var(--ink-2)}

/* next / CTA ───────────────────────────────── */
.next-inner{
  border:1px solid var(--rule);padding:64px 56px;
  background:radial-gradient(700px 360px at 80% 20%, rgba(232,84,42,.12), transparent 60%),var(--bg-2);
  position:relative;overflow:hidden;
}
@media (max-width:760px){.next-inner{padding:36px 24px}}
.next-inner h2{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(40px,6vw,80px);line-height:1;letter-spacing:-.02em;
  margin:18px 0 0;text-wrap:balance;max-width:14ch;
}
.next-inner h2 em{font-style:italic;color:var(--ink-2)}
.next-inner p{margin:24px 0 0;color:var(--ink-2);font-size:17px;max-width:50ch;line-height:1.6}
.next-links{margin-top:40px;display:flex;gap:14px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 22px;border:1px solid var(--rule);
  font-size:14px;font-weight:500;transition:all .25s ease;
}
.btn-primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-ghost:hover{border-color:var(--ink-2)}
.btn .arr{transition:transform .25s ease}
.btn:hover .arr{transform:translateX(3px)}

/* footer ───────────────────────────────────── */
footer{padding:48px 0 56px;border-top:1px solid var(--rule)}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--ink-3)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--ink-3);flex-wrap:wrap;gap:18px}
.foot-bot a:hover{color:var(--accent)}

/* reveal-on-scroll ─────────────────────────── */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal-d2{transition-delay:.08s}
.reveal-d3{transition-delay:.16s}
.reveal-d4{transition-delay:.24s}

@media (prefers-reduced-motion:reduce){
  .reveal{transition:none}
}