:root {
  --ink: #17211c;
  --muted: #5f6b63;
  --paper: #f8f1e5;
  --paper-soft: #fffaf1;
  --moss: #496755;
  --moss-dark: #263d31;
  --clay: #c98262;
  --sand: #ecd5ad;
  --line: rgba(23, 33, 28, 0.14);
  --shadow: 0 28px 80px rgba(54, 46, 35, 0.18);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  background:
    radial-gradient(circle at 15% 12%, rgba(201, 130, 98, 0.26), transparent 28rem),
    radial-gradient(circle at 86% 8%, rgba(73, 103, 85, 0.2), transparent 25rem),
    linear-gradient(135deg, #f8f1e5 0%, #efe0c4 48%, #f9f5eb 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image: linear-gradient(rgba(23,33,28,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(23,33,28,.12) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

main {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 92vh;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 56px;
  align-items: center;
  padding: 72px 0 48px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--moss);
  font: 700 13px/1.2 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .14em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 20px;
  font-size: clamp(64px, 12vw, 156px);
  line-height: .82;
  letter-spacing: -0.075em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(34px, 5vw, 72px);
  line-height: .92;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 10px;
  font-size: 25px;
  letter-spacing: -0.03em;
}

p {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
}

.lead {
  max-width: 650px;
  color: #35443b;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font: 750 16px/1 ui-sans-serif, system-ui, sans-serif;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.button:hover { transform: translateY(-2px); }

.button--primary {
  border-color: var(--moss-dark);
  color: #fffaf1;
  background: var(--moss-dark);
  box-shadow: 0 16px 40px rgba(38, 61, 49, .28);
}

.button--ghost { background: rgba(255, 250, 241, .46); }

.hero__card {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(73, 103, 85, .2);
  border-radius: 34px;
  background: rgba(255, 250, 241, .72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero__card::before {
  content: "Оля";
  position: absolute;
  top: -18px;
  left: 32px;
  padding: 8px 18px;
  border-radius: 999px;
  color: #fffaf1;
  background: var(--clay);
  font: 800 14px/1 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .04em;
}

.chat {
  width: fit-content;
  max-width: 92%;
  margin: 0 0 14px;
  padding: 15px 18px;
  border-radius: 21px;
  font: 500 17px/1.45 ui-sans-serif, system-ui, sans-serif;
}

.chat--user {
  margin-left: auto;
  color: #fffaf1;
  background: var(--moss);
  border-bottom-right-radius: 6px;
}

.chat--ola {
  color: #263d31;
  background: var(--sand);
  border-bottom-left-radius: 6px;
}

.section {
  padding: 92px 0;
  border-top: 1px solid var(--line);
}

.intro, .split, .safety {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 46px;
  align-items: start;
}

.intro p:last-child, .safety__box p { font-size: 23px; }

.section__header {
  grid-column: 1 / -1;
  max-width: 760px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.tile, .safety__box, .foundation, .cta {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255, 250, 241, .58);
  box-shadow: 0 18px 60px rgba(54, 46, 35, .08);
}

.tile {
  padding: 26px;
  min-height: 220px;
}

.tile p { font-size: 17px; }

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

.steps li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 250, 241, .48);
}

.steps span {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 50%;
  color: #fffaf1;
  background: var(--moss);
  font: 800 16px/1 ui-sans-serif, system-ui, sans-serif;
}

.steps p { margin: 0; font-size: 18px; }

.foundation {
  padding: 54px;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 34px 0 28px;
}

.book-grid div {
  min-height: 150px;
  padding: 22px;
  border-radius: 22px;
  color: #fffaf1;
  background: linear-gradient(145deg, var(--moss-dark), var(--moss));
}

.book-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 23px;
}

.book-grid span {
  display: block;
  color: rgba(255, 250, 241, .82);
  font: 500 15px/1.45 ui-sans-serif, system-ui, sans-serif;
}

.note {
  max-width: 970px;
  font-size: 16px;
}

.safety__box { padding: 34px; }

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

.cta {
  margin: 88px 0;
  padding: 58px;
  text-align: center;
}

.cta h2 { margin-left: auto; margin-right: auto; max-width: 760px; }

.cta p { margin-left: auto; margin-right: auto; max-width: 560px; }

@media (max-width: 900px) {
  main { width: min(100% - 24px, 680px); }
  .hero, .intro, .split, .safety { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 44px; gap: 34px; }
  .grid, .book-grid { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .foundation, .cta { padding: 30px; }
  h1 { font-size: clamp(66px, 22vw, 112px); }
  h2 { font-size: clamp(36px, 12vw, 58px); }
}

@media (max-width: 520px) {
  .hero__actions { flex-direction: column; }
  .button { width: 100%; }
  .hero__card { padding: 22px 16px; border-radius: 26px; }
  .chat { max-width: 96%; font-size: 15px; }
  .tile { min-height: auto; }
}