:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --surface: #ffffff;
  --text: #1e2528;
  --muted: #667176;
  --line: #d8ddd8;
  --accent: #24756b;
  --accent-soft: #e1f0eb;
  --hero-ink: var(--bg);
  --hero-particle: #111715;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.site-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.74fr);
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
  margin-bottom: 56px;
}

.intro-text {
  max-width: 720px;
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 650px;
  margin-bottom: 18px;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.intro-copy {
  max-width: 580px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.7;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.intro-visual {
  width: 100%;
  min-height: 420px;
}

.particle-morph-hero {
  position: relative;
  width: 100%;
  height: clamp(360px, 44vw, 520px);
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: var(--hero-ink);
  box-shadow: none;
  isolation: isolate;
}

.particle-morph-hero::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 50% 48%, rgba(17, 23, 21, 0.045), transparent 56%);
}

.particle-morph-hero canvas {
  position: relative;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.content-stack {
  display: grid;
  gap: 0;
  max-width: 760px;
  border-top: 1px solid var(--line);
}

.content-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.content-section h2 {
  margin-bottom: 16px;
  font-size: clamp(1.65rem, 3vw, 2.55rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.content-section p:not(.section-label) {
  max-width: 640px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.content-section p.section-intro {
  margin-bottom: 26px;
}

.thesis-list {
  display: grid;
  gap: 16px;
}

.thesis-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.thesis-card h3 {
  margin-bottom: 8px;
  font-size: 1.18rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.content-section .thesis-card p {
  max-width: none;
}

.content-section p.thesis-kicker {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.2;
  text-transform: uppercase;
}

.content-section p.thesis-meta {
  margin-bottom: 14px;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.5;
}

.content-section p.thesis-summary {
  margin-bottom: 16px;
}

.thesis-points {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.thesis-points strong {
  color: var(--text);
}

.action-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 700;
  text-decoration: none;
}

.action-link:hover,
.action-link:focus-visible {
  color: #ffffff;
  background: var(--accent);
}

.action-link:focus-visible {
  outline: 3px solid rgba(36, 117, 107, 0.28);
  outline-offset: 2px;
}

@media (max-width: 760px) {
  .site-shell {
    width: min(100% - 24px, 1040px);
    padding: 40px 0;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 36px;
  }

  .intro-visual {
    min-height: 300px;
  }

  .particle-morph-hero {
    height: clamp(300px, 78vw, 420px);
  }

  h1 {
    font-size: clamp(2.4rem, 15vw, 4.4rem);
  }

  .intro-actions {
    gap: 10px;
  }

  .content-section {
    padding: 32px 0;
  }
}