/* ============================================================
   Base — reset, typography, layout primitives, utilities
   ============================================================ */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 24px;
  font-family: var(--font-display);
  font-size: clamp(44px, 6.2vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.032em;
  font-weight: 640;
}
h2 {
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.8vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.024em;
  font-weight: 600;
}
h3 {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.32;
  letter-spacing: -0.012em;
  font-weight: 600;
}

/* —— Layout primitives —— */
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }
.section { padding: 112px 0; position: relative; }
.section.tight { padding: 80px 0; }
.section.paper {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head p {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
  margin: 0;
}
.section-head p strong { color: var(--ink); font-weight: 650; }

/* —— Utilities —— */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--line-strong);
}

/* —— Scroll reveal —— */
.js .reveal { opacity: 0; transform: translateY(20px); }
.reveal { transition: opacity 720ms var(--ease), transform 720ms var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .js .filetree-row { opacity: 1 !important; transform: none !important; }
  .pill .dot { animation: none !important; }
  html { scroll-behavior: auto; }
}