:root {
  --bg: #f5efe4;
  --bg-deep: #e9e0d2;
  --surface: rgba(255, 252, 246, 0.78);
  --surface-strong: #fffaf2;
  --text: #1d241f;
  --muted: #5d645c;
  --line: rgba(29, 36, 31, 0.12);
  --accent: #174636;
  --accent-soft: #d8e2cb;
  --signal: #b66a2d;
  --shadow: 0 30px 80px rgba(24, 32, 27, 0.08);
  --display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua",
    "URW Palladio L", Georgia, serif;
  --body: "Aptos", "Segoe UI", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(182, 106, 45, 0.1), transparent 34%),
    radial-gradient(circle at right 20%, rgba(23, 70, 54, 0.12), transparent 30%),
    linear-gradient(180deg, #f8f2e7 0%, var(--bg) 38%, var(--bg-deep) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 88%);
}

a {
  color: inherit;
}

.page-shell {
  position: relative;
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px 24px 80px;
}

.site-header,
.hero-copy,
.hero-panel,
.section,
.site-footer {
  animation: rise 0.75s ease both;
}

.hero-panel {
  animation-delay: 0.08s;
}

.section:nth-of-type(2) {
  animation-delay: 0.14s;
}

.section:nth-of-type(3) {
  animation-delay: 0.2s;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 42px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--accent), #0d2a20);
  color: #f7f0df;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  box-shadow: var(--shadow);
}

.brand-text {
  font-weight: 700;
  letter-spacing: 0.02em;
}

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

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.96rem;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
}

.page {
  display: grid;
  gap: 28px;
}

.hero,
.section,
.site-footer {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.9fr);
  gap: 22px;
  padding: clamp(28px, 5vw, 56px);
}

.hero-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.eyebrow,
.panel-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--signal);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--display);
  line-height: 0.98;
}

h1 {
  max-width: 12ch;
  font-size: clamp(3.2rem, 7vw, 5.8rem);
}

h2 {
  max-width: 16ch;
  font-size: clamp(2rem, 4vw, 3.35rem);
}

h3 {
  font-size: 1.35rem;
  line-height: 1.05;
}

.lede,
.card p,
.model-note p,
.site-footer p,
.stack-list p,
.panel-list {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.03rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 6px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 0.18s ease,
    background-color 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: #f8f3ea;
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.4);
  color: var(--text);
}

.hero-panel,
.model-note {
  padding: 24px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(244, 238, 227, 0.9));
  border: 1px solid rgba(23, 70, 54, 0.12);
}

.hero-panel {
  display: grid;
  gap: 16px;
  align-content: start;
}

.hero-panel h2 {
  max-width: none;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.panel-list {
  padding-left: 20px;
}

.panel-list-numbered {
  display: grid;
  gap: 12px;
  padding-left: 22px;
}

.section {
  display: grid;
  gap: 28px;
  padding: clamp(28px, 4vw, 42px);
}

.section-emphasis {
  background:
    linear-gradient(180deg, rgba(217, 226, 204, 0.75), rgba(255, 250, 242, 0.8));
}

.section-heading {
  display: grid;
  gap: 12px;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 20px;
}

.section-copy {
  display: grid;
  gap: 16px;
}

.card-grid {
  display: grid;
  gap: 18px;
}

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

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

.card {
  display: grid;
  gap: 12px;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.card-number {
  margin: 0;
  color: var(--signal);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.card-tall {
  min-height: 220px;
}

.note-card {
  align-content: start;
}

.model-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 20px;
}

.stack-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.stack-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 18px 18px 18px 16px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.52);
}

.stack-step {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.plain-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.question-card h3,
.partner-card h3 {
  max-width: 16ch;
}

.site-footer {
  margin-top: 28px;
  padding: 20px 24px;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero,
  .split-layout,
  .model-layout,
  .card-grid-three,
  .card-grid-two {
    grid-template-columns: 1fr;
  }

  h1,
  h2 {
    max-width: none;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 18px 14px 56px;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 26px;
  }

  .site-nav {
    gap: 14px;
  }

  .hero,
  .section {
    border-radius: 24px;
    padding: 22px;
  }

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

  .button {
    width: 100%;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }
}