/* ============================================================
   layout.css — structural layout: nav, sections, hero, footer
   ============================================================ */

main { position: relative; z-index: var(--z-content); }

.section {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  padding-block: var(--space-section);
}

.section__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.section__title {
  font-size: var(--fs-h2);
  max-width: 16ch;
  margin-bottom: 1rem;
}
.section__intro {
  color: var(--text-soft);
  max-width: 52ch;
  font-size: var(--fs-lead);
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

/* ---------------- NAV ---------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--dur) var(--ease-out-expo),
              border-color var(--dur) var(--ease-out-expo),
              backdrop-filter var(--dur) var(--ease-out-expo);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(5, 5, 6, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--hairline);
}
.nav__inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__brand { display: flex; align-items: center; gap: 0.65rem; font-family: var(--font-display); font-weight: 600; }
.nav__monogram {
  display: grid; place-items: center;
  width: 32px; height: 32px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.8rem; letter-spacing: 0.05em;
  border-radius: var(--radius);
  box-shadow: 0 0 0 0 var(--accent-glow);
  transition: box-shadow var(--dur) var(--ease-out-expo), background var(--dur) var(--ease-out-expo);
}
.nav__brand:hover .nav__monogram { box-shadow: 0 0 18px -2px var(--accent-glow); background: var(--accent-faint); }
.nav__name { font-size: 0.95rem; }
.nav__links { margin-left: auto; display: flex; gap: 1.75rem; }
.nav__links a {
  font-size: var(--fs-sm);
  color: var(--text-soft);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--dur-fast) var(--ease-out-expo);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease-out-expo);
}
.nav__links a:hover, .nav__links a.is-active { color: var(--text); }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); }
.nav__cta { font-size: var(--fs-sm); }
.nav__toggle { display: none; }
.nav__progress {
  position: absolute; left: 0; bottom: 0;
  height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent), var(--accent-bright));
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ---------------- HERO ---------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  padding-top: var(--nav-h);
}
#hero-graph {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero__content { position: relative; z-index: 2; pointer-events: none; max-width: min(100%, 60rem); }
.hero__content a, .hero__content button { pointer-events: auto; }

.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 1.5rem;
}
.hero__eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent-glow);
  animation: pulse 2.4s var(--ease-in-out-quint) infinite;
}
.hero__title {
  font-size: var(--fs-hero);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.045em;
  margin-bottom: 1.4rem;
  max-width: none;
  overflow: visible;
}
/* Each name line clips vertically for the rise animation, not horizontally */
.hero__title .reveal-line { white-space: nowrap; overflow: hidden; }
.hero__accent {
  background: linear-gradient(180deg, var(--accent-bright), var(--accent) 55%, var(--accent-dim));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(0.8rem, 2.4vw, 1.65rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero__subtitle .brk { color: var(--text-faint); }
.hero__subtitle .caret {
  width: 0.55ch; height: 1.05em;
  background: var(--accent);
  display: inline-block;
  margin-left: 0.1rem;
  animation: blink 1.05s steps(1) infinite;
}
.hero__positioning {
  color: var(--text-soft);
  font-size: var(--fs-lead);
  max-width: 46ch;
  margin-bottom: 2.25rem;
}
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: 2rem; left: var(--gutter);
  z-index: 2;
  display: flex; align-items: center; gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs); letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--text-mute);
}
.hero__scroll-line { width: 60px; height: 1px; background: var(--hairline-strong); position: relative; overflow: hidden; }
.hero__scroll-line::after {
  content: ""; position: absolute; inset: 0; width: 40%;
  background: var(--accent);
  animation: scrollLine 2.2s var(--ease-in-out-quint) infinite;
}

/* ---------------- FOOTER ---------------- */
.footer {
  position: relative;
  z-index: var(--z-content);
  border-top: 1px solid var(--hairline);
  background: rgba(5,5,6,0.6);
  backdrop-filter: blur(6px);
}
.footer__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 2.5rem var(--gutter);
  display: flex; align-items: center; gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__mono {
  font-family: var(--font-display); font-weight: 600;
  color: var(--accent); border: 1px solid var(--hairline-strong);
  padding: 0.35rem 0.6rem; border-radius: var(--radius);
}
.footer__inner p { color: var(--text-mute); font-size: var(--fs-sm); }
.footer__top { margin-left: auto; color: var(--text-soft); font-size: var(--fs-sm); }
.footer__top:hover { color: var(--accent); }