:root {
  --bg: #08090b;
  --surface: #101214;
  --ink: #f2f3ee;
  --ink-2: #b8bdb6;
  --muted: #7d848c;
  --line: rgba(255, 255, 255, 0.06);
  --line-strong: rgba(255, 255, 255, 0.1);
  --accent: #c8ff2e;
  --accent-soft: rgba(200, 255, 46, 0.08);
  --accent-line: rgba(200, 255, 46, 0.34);
  --on-accent: #0a0b0d;
  --radius: 18px;
  --font-display: "Unbounded", "Manrope", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", monospace;
  --page: min(1180px, calc(100% - 4rem));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(900px 480px at 8% -10%, rgba(200, 255, 46, 0.055), transparent 58%),
    radial-gradient(800px 420px at 100% 0%, rgba(90, 140, 255, 0.045), transparent 55%),
    var(--bg);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-underline-offset: 0.18em; }

.nav,
main,
footer {
  width: var(--page);
  margin-left: auto;
  margin-right: auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 0 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid var(--accent-line);
  border-radius: 10px;
  color: var(--accent);
  background: var(--accent-soft);
}

.brand-copy { display: flex; flex-direction: column; }
.brand-copy b { font-family: var(--font-display); font-size: 1.05rem; }
.brand-copy small {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav nav { display: flex; align-items: center; gap: 1.35rem; }
.nav nav a:not(.btn) {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.92rem;
}
.nav nav a:not(.btn):hover { color: var(--ink); }

.kicker {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 5.4vw, 4.1rem); max-width: 13ch; }
h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); margin-bottom: 1rem; }
h3 { font-size: 1.02rem; margin-bottom: 0.35rem; }

.lead, .chapter-copy > p, .cta p, .notes p {
  color: var(--ink-2);
  max-width: 38rem;
}

.hero { padding: 5.5rem 0 2.4rem; }
.hero-copy { max-width: 40rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 1.8rem 0 0.9rem; }
.caption { color: var(--muted); font-size: 0.88rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.55rem 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  text-decoration: none;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.03);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
}

.shot {
  margin: 0;
  padding: 0.55rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 80px), var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 40px 90px -48px rgba(0, 0, 0, 0.9);
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  background: #050607;
}

.shot figcaption {
  margin: 0.75rem 0.35rem 0.2rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.shot-hero { margin-bottom: 2rem; }

.chapter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  padding: 7.2rem 0 2.4rem;
  border-top: 1px solid var(--line);
}

.chapter-copy { max-width: 38rem; }

.chapter-copy ul {
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.chapter-copy li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--ink);
}

.chapter-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--accent);
}

.notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.notes article {
  padding: 1.15rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.notes span {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  color: var(--accent);
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.cta {
  padding: 5.5rem 0 2rem;
  border-top: 1px solid var(--line);
}

.cta .btn { margin-top: 1.4rem; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1.4rem 0 3.4rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 960px) {
  :root { --page: calc(100% - 1.6rem); }
  .nav nav a:not(.btn) { display: none; }
  .hero { padding-top: 3.2rem; }
  h1 { max-width: none; }
  .chapter { padding: 3.8rem 0 1.4rem; }
  .notes { grid-template-columns: 1fr; }
}