:root {
  --bg: #0b0b0d;
  --paper: #141418;
  --ink: #ffffff;
  --muted: #c9c9d6;
  --line: #343443;
  --accent: #f7b6d2;
  --accent-dark: #eea7c7;
  --accent-soft: #1d1d24;
  --card: #141418;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --max: 1160px;
  --font-display: "Space Grotesk", "Manrope", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: radial-gradient(circle at top left, rgba(247, 182, 210, 0.18), transparent 28%), linear-gradient(180deg, #0f0f14 0%, var(--bg) 100%);
  line-height: 1.62;
}

a {
  color: #ffd84d;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(12px);
  background: rgba(11, 11, 13, 0.88);
  border-bottom: 1px solid rgba(52, 52, 67, 0.75);
}

.header-row,
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 16px 0;
}

.brand {
  text-decoration: none;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.site-nav,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a,
.footer-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a.active-link {
  color: #ffd84d;
  border-bottom: 2px solid #ffd84d;
  padding-bottom: 2px;
}

.site-nav a:hover,
.footer-links a:hover,
.brand:hover {
  color: var(--accent-dark);
}

.hero {
  padding: 88px 0 56px;
}

.compact-hero {
  padding: 72px 0 34px;
}

.learn-hero {
  padding: 86px 0 48px;
}

.learn-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
  gap: 34px;
  align-items: end;
}

.learn-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(3.2rem, 9vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.learn-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 22px;
  box-shadow: var(--shadow);
}

.learn-panel p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.learn-section {
  border-top: 1px solid var(--line);
  padding: 46px 0 80px;
}

.learn-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 42px;
  align-items: start;
}

.learn-topics {
  position: sticky;
  top: 82px;
  display: grid;
  gap: 10px;
}

.learn-topics a {
  display: block;
  padding: 10px 0;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.learn-topics a:hover {
  color: var(--accent-dark);
}

.learn-feed {
  display: grid;
  gap: 46px;
}

.learn-feed-section {
  display: grid;
  gap: 18px;
}

.learn-section-head h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.feature-article,
.article-row {
  display: grid;
  grid-template-columns: 156px minmax(0, 1fr);
  gap: 20px;
  padding: 18px;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}

.feature-article {
  grid-template-columns: minmax(180px, 0.38fr) minmax(0, 1fr);
  padding: 24px;
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-thumb {
  min-height: 118px;
  display: grid;
  place-items: center;
  border-radius: calc(var(--radius) - 4px);
  background:
    radial-gradient(circle at 24% 20%, rgba(247, 182, 210, 0.28), transparent 34%),
    linear-gradient(135deg, rgba(247, 182, 210, 0.34), rgba(255, 216, 77, 0.1));
  color: var(--ink);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.04em;
}

.feature-article strong,
.article-row strong {
  display: block;
  margin: 7px 0 8px;
  color: var(--ink);
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
  font-family: var(--font-display);
}

.article-row strong {
  font-size: 1.28rem;
}

.feature-article small,
.article-row small {
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
}

.feature-article em,
.article-row em {
  display: block;
  color: var(--muted);
  font-style: normal;
}

.hero-grid,
.section-grid,
.cards,
.ecosystem-grid {
  display: grid;
  gap: 22px;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: start;
  gap: 34px;
}

.eyebrow,
.section-kicker,
.card-label,
.panel-label {
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.76rem;
  color: var(--muted);
  font-weight: 800;
}

.hero h1,
.content-section h2 {
  margin: 0 0 16px;
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
}

.hero h1,
.content-section h2,
.card h3,
.ecosystem-card h3,
.panel-quote,
.learn-hero h1,
.learn-section-head h2 {
  font-family: var(--font-display);
}

.hero h1 {
  font-size: clamp(2.3rem, 6.3vw, 4.3rem);
  max-width: 780px;
}

.hero-lead,
.section-body p,
.card p,
.ecosystem-card p,
.essay-wrap p {
  font-size: 1.08rem;
}

.hero-lead {
  max-width: 720px;
  color: var(--muted);
  margin: 0 0 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  font-size: 0.92rem;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #141418;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-secondary {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(29, 29, 36, 0.8);
}

.hero-panel,
.card,
.ecosystem-card,
.callout {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-panel,
.card,
.ecosystem-card {
  padding: 22px;
}

.callout {
  margin-top: 22px;
  padding: 18px 20px;
  display: grid;
  gap: 6px;
}

.panel-quote {
  margin: 8px 0 18px;
  font-size: 1.55rem;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.panel-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.panel-stack span {
  padding: 9px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 700;
}

.statement-band {
  border-top: 1px solid rgba(52, 52, 67, 0.7);
  border-bottom: 1px solid rgba(52, 52, 67, 0.7);
  background: rgba(20, 20, 24, 0.62);
}

.statement-band p {
  margin: 0;
  padding: 18px 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.content-section {
  padding: 72px 0;
}

.content-section.alt {
  background: rgba(20, 20, 24, 0.58);
}

.section-grid {
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: 34px;
}

.section-intro h2 {
  font-size: clamp(2rem, 4.2vw, 3.4rem);
}

.section-intro.wide {
  margin-bottom: 24px;
  max-width: 860px;
}

.cards-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card h3,
.ecosystem-card h3 {
  margin: 8px 0 10px;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.ecosystem-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ecosystem-card h3 a {
  text-decoration: none;
}

.essay-wrap {
  max-width: 820px;
}

.essay-wrap p {
  margin: 0 0 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-bottom: 28px;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero-grid,
  .section-grid,
  .cards-three,
  .cards-two,
  .ecosystem-grid,
  .learn-hero-grid,
  .learn-layout {
    grid-template-columns: 1fr;
  }

  .learn-topics {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 700px) {
  .wrap {
    width: min(var(--max), calc(100% - 24px));
  }

  .header-row,
  .footer-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .site-nav {
    width: 100%;
    gap: 10px;
  }

  .site-nav a {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px 10px;
    line-height: 1.2;
    font-size: 0.9rem;
  }

  .hero {
    padding-top: 50px;
    padding-bottom: 40px;
  }

  .compact-hero {
    padding-top: 44px;
  }

  .hero h1 {
    font-size: clamp(1.9rem, 8.8vw, 2.7rem);
  }

  .hero-lead,
  .section-body p,
  .card p,
  .ecosystem-card p,
  .essay-wrap p {
    font-size: 0.98rem;
  }

  .panel-quote {
    font-size: 1.3rem;
  }

  .statement-band p {
    font-size: 1rem;
    padding: 14px 0;
  }

  .content-section {
    padding: 48px 0;
  }

  .card,
  .hero-panel,
  .ecosystem-card,
  .learn-panel {
    padding: 16px;
  }

  .section-intro h2 {
    font-size: clamp(1.45rem, 7vw, 2rem);
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .learn-hero {
    padding-top: 56px;
  }

  .learn-hero h1 {
    font-size: clamp(3rem, 17vw, 4.8rem);
  }

  .learn-topics,
  .feature-article,
  .article-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .wrap {
    width: min(var(--max), calc(100% - 18px));
  }

  .hero {
    padding-top: 38px;
    padding-bottom: 30px;
  }

  .compact-hero {
    padding-top: 34px;
    padding-bottom: 22px;
  }

  .site-nav a {
    width: 100%;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
  }
}