:root {
  --bg: #f4efe6;
  --bg-deep: #e7dac7;
  --surface: rgba(255, 250, 243, 0.78);
  --surface-strong: rgba(255, 252, 247, 0.92);
  --surface-border: rgba(66, 46, 24, 0.12);
  --ink: #1c1712;
  --muted: #62584a;
  --muted-strong: #493d33;
  --accent: #136f63;
  --accent-dark: #0d4f47;
  --accent-soft: rgba(19, 111, 99, 0.12);
  --warm: #bf6b36;
  --shadow: 0 24px 80px rgba(61, 42, 24, 0.12);
  --shadow-soft: 0 10px 24px rgba(61, 42, 24, 0.08);
  --radius: 28px;
  --radius-sm: 18px;
  --font-body: "Plus Jakarta Sans", "Avenir Next", sans-serif;
  --font-display: "PT Serif Caption", "Palatino Linotype", serif;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(19, 111, 99, 0.18), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(191, 107, 54, 0.16), transparent 24%),
    linear-gradient(180deg, #fbf7ef 0%, var(--bg) 48%, var(--bg-deep) 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.18), transparent 72%);
}

a {
  color: inherit;
}

.hero {
  padding: 36px 24px 28px;
}

.hero__inner,
.layout {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
}

.hero__inner {
  position: relative;
  overflow: hidden;
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: calc(var(--radius) + 6px);
  background:
    linear-gradient(145deg, rgba(255, 252, 247, 0.94), rgba(247, 238, 225, 0.86)),
    rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.hero__inner::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -140px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(19, 111, 99, 0.18), transparent 68%);
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.85fr);
  gap: 28px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.2vw, 4.35rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  font-weight: 400;
}

.hero__copy {
  max-width: 700px;
  margin: 18px 0 0;
  font-size: 1.14rem;
  line-height: 1.95;
  color: var(--muted);
}

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

.hero__points {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.hero__points li {
  position: relative;
  padding-left: 20px;
  color: var(--muted-strong);
  line-height: 1.6;
}

.hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--warm));
  transform: translateY(-50%);
}

.hero__panel {
  position: relative;
  padding: 22px;
  border-radius: var(--radius);
  background: rgba(28, 23, 18, 0.94);
  color: #f8efe0;
  box-shadow: var(--shadow-soft);
}

.hero__panel-label {
  margin: 0 0 18px;
  color: rgba(248, 239, 224, 0.72);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero__stat + .hero__stat {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(248, 239, 224, 0.14);
}

.hero__stat-value {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-size: 1.55rem;
}

.hero__stat-copy {
  color: rgba(248, 239, 224, 0.76);
  line-height: 1.6;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  font-weight: 600;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(19, 111, 99, 0.28);
}

.button--primary {
  background: var(--accent);
  color: white;
  border-color: transparent;
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--accent-dark);
}

.layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 28px;
  padding: 0 0 48px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 20px;
  align-self: start;
  padding: 22px 18px;
  border-radius: var(--radius);
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.toc__title {
  margin: 0 0 12px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--muted);
}

.toc a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--muted);
  transition:
    background-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.toc a:hover,
.toc a:focus-visible {
  color: var(--ink);
  background: var(--accent-soft);
  transform: translateX(2px);
}

.content {
  display: grid;
  gap: 24px;
}

.card {
  padding: 34px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.card--intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 20px;
  align-items: end;
  background:
    linear-gradient(135deg, rgba(19, 111, 99, 0.08), rgba(255, 250, 243, 0.82)),
    var(--surface);
}

.card h2 {
  margin-top: 0;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3vw, 2.45rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.card h3 {
  margin-top: 22px;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.card p,
.card li {
  color: var(--muted);
  line-height: 1.9;
  letter-spacing: 0.005em;
}

.card p {
  max-width: 70ch;
}

.card p:last-child,
.card ul:last-child,
.card pre:last-child {
  margin-bottom: 0;
}

.section-label {
  margin: 0 0 10px;
  color: var(--warm);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

ul {
  padding-left: 1.2rem;
}

.callout {
  margin-top: 22px;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(19, 111, 99, 0.14);
  background: linear-gradient(135deg, rgba(19, 111, 99, 0.08), rgba(255, 250, 243, 0.92));
  color: var(--muted-strong);
  line-height: 1.8;
}

.callout strong {
  color: var(--ink);
}

.card--story {
  position: relative;
}

.card--story::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  border-radius: 28px 0 0 28px;
  background: linear-gradient(180deg, var(--accent), var(--warm));
}

pre {
  overflow-x: auto;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent),
    #161311;
  color: #f7efe3;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

code {
  font-family: "SFMono-Regular", "Menlo", monospace;
  font-size: 0.95em;
}

section {
  scroll-margin-top: 24px;
}

@media (max-width: 900px) {
  .hero {
    padding-top: 24px;
  }

  .hero__inner {
    padding: 28px;
  }

  .hero__grid,
  .card--intro {
    grid-template-columns: 1fr;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }
}

@media (max-width: 640px) {
  .hero__inner,
  .layout {
    width: min(var(--max-width), calc(100% - 20px));
  }

  .card {
    padding: 22px;
  }

  .hero h1 {
    font-size: clamp(2.4rem, 12vw, 3.6rem);
  }

  .button {
    width: 100%;
  }

  .hero__actions {
    flex-direction: column;
  }
}