:root {
  --paper: #f7f4ee;
  --paper-deep: #efeae0;
  --ink: #23282c;
  --muted: #6e6a63;
  --line: #ddd6c9;
  --accent: #5e7153;
  --accent-ink: #46543e;
  --accent-soft: #e7ebe1;
  --serif: "Spectral", Georgia, serif;
  --sans: "Inter", -apple-system, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.15; }

a { color: var(--accent-ink); }

/* ---------- header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; max-width: 1060px; margin: 0 auto;
}
.nav .brand {
  font-family: var(--serif); font-size: 19px; text-decoration: none; color: var(--ink);
}
.nav ul { display: flex; gap: 26px; list-style: none; }
.nav ul a { text-decoration: none; color: var(--muted); font-size: 15px; }
.nav ul a:hover { color: var(--ink); }
.nav .cta {
  background: var(--accent); color: #fff; padding: 9px 18px; border-radius: 999px;
  font-size: 15px; text-decoration: none; white-space: nowrap;
}
.nav .cta:hover { background: var(--accent-ink); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 64px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.kicker {
  font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-ink); margin-bottom: 18px;
}
.hero h1 { font-size: clamp(34px, 5vw, 52px); margin-bottom: 22px; }
.hero .lead { font-size: 19px; color: var(--muted); max-width: 46ch; margin-bottom: 32px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 14px 28px; border-radius: 999px; font-size: 16px;
}
.btn:hover { background: var(--accent-ink); }
.btn.ghost {
  background: transparent; color: var(--ink); border: 1px solid var(--line);
}
.btn.ghost:hover { border-color: var(--muted); background: transparent; }
.hero .note { font-size: 14px; color: var(--muted); margin-top: 16px; }
.hero figure { position: relative; }
.hero img {
  width: 100%; max-width: 420px; display: block; margin-left: auto;
  border-radius: 4px;
}
.hero figcaption {
  font-size: 13px; color: var(--muted); text-align: right; margin-top: 10px;
}

/* ---------- trust strip ---------- */
.trust { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-deep); }
.trust .wrap {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 22px 24px;
}
.trust div { font-size: 14.5px; color: var(--muted); line-height: 1.45; }
.trust strong { display: block; color: var(--ink); font-size: 15.5px; font-weight: 600; }

/* ---------- sections ---------- */
section { padding: 76px 0; }
.sec-head { max-width: 640px; margin-bottom: 44px; }
.sec-head h2 { font-size: clamp(28px, 3.6vw, 38px); margin-bottom: 14px; }
.sec-head p { color: var(--muted); }

/* problems grid */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px 32px; }
.grid3 article { border-top: 2px solid var(--ink); padding-top: 18px; }
.grid3 h3 { font-size: 21px; margin-bottom: 10px; }
.grid3 p { font-size: 15.5px; color: var(--muted); }
.clinical-note {
  margin-top: 40px; padding: 20px 24px; background: var(--accent-soft);
  border-radius: 6px; font-size: 15.5px; color: var(--accent-ink);
}

/* divider photo */
.divider { padding: 0; }
.divider img { width: 100%; height: 340px; object-fit: cover; display: block; filter: saturate(0.85); }

/* about */
.about .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.about h2 { font-size: clamp(28px, 3.6vw, 38px); margin-bottom: 18px; }
.about .bio p { margin-bottom: 16px; }
.about .facts { display: grid; gap: 26px; align-content: start; }
.about .facts h3 {
  font-family: var(--sans); font-size: 13px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-ink); margin-bottom: 10px; font-weight: 600;
}
.about .facts ul { list-style: none; }
.about .facts li {
  padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 15.5px;
}
.about .facts li:last-child { border-bottom: 0; }

/* steps */
.steps { background: var(--paper-deep); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps ol { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; counter-reset: step; }
.steps li { counter-increment: step; }
.steps li::before {
  content: "0" counter(step);
  font-family: var(--serif); font-size: 30px; color: var(--accent-ink);
  display: block; margin-bottom: 12px;
}
.steps h3 { font-size: 19px; margin-bottom: 8px; }
.steps p { font-size: 15px; color: var(--muted); }

/* pricing */
.price-list { max-width: 720px; }
.price-row {
  display: flex; align-items: baseline; gap: 18px;
  padding: 26px 0; border-bottom: 1px solid var(--line);
}
.price-row:first-child { border-top: 1px solid var(--line); }
.price-row .name { flex: 1; }
.price-row .name strong { font-family: var(--serif); font-size: 22px; font-weight: 500; display: block; }
.price-row .name span { font-size: 15px; color: var(--muted); }
.price-row .dur { font-size: 15px; color: var(--muted); white-space: nowrap; }
.price-row .cost { font-family: var(--serif); font-size: 26px; white-space: nowrap; }
.pay-note { margin-top: 28px; font-size: 15px; color: var(--muted); max-width: 62ch; }
.ru-note { margin-top: 14px; font-size: 15px; }

/* reviews */
.reviews { background: var(--paper-deep); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.reviews .grid3 article { border-top: 0; padding-top: 0; background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 26px; }
.reviews blockquote { font-size: 15.5px; color: var(--ink); margin-bottom: 18px; }
.reviews .who { display: flex; align-items: center; gap: 12px; }
.reviews .who .ava {
  width: 40px; height: 40px; border-radius: 50%; background: var(--accent-soft);
  color: var(--accent-ink); display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 15px;
}
.reviews .who span { font-size: 14.5px; color: var(--muted); }

/* faq */
.faq .list { max-width: 720px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 20px 0; font-family: var(--serif); font-size: 19px;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--accent-ink); flex-shrink: 0; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 0 20px; color: var(--muted); font-size: 15.5px; max-width: 60ch; }

/* contact */
.contact { text-align: center; }
.contact h2 { font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 14px; }
.contact > .wrap > p { color: var(--muted); max-width: 46ch; margin: 0 auto 32px; }
.channels { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 30px 0 40px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }

/* ---------- mobile ---------- */
@media (max-width: 860px) {
  .nav ul { display: none; }
  .hero { padding: 44px 0 48px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 36px; }
  .hero img { margin: 0 auto; max-width: 340px; }
  .hero figcaption { text-align: center; }
  .trust .wrap { grid-template-columns: 1fr 1fr; }
  .grid3 { grid-template-columns: 1fr; }
  .about .wrap { grid-template-columns: 1fr; }
  .steps ol { grid-template-columns: 1fr 1fr; }
  section { padding: 56px 0; }
  .divider img { height: 220px; }
  .price-row { flex-wrap: wrap; }
  .price-row .name { flex-basis: 100%; }
  .price-row .cost { margin-left: auto; }
}
@media (max-width: 520px) {
  .steps ol { grid-template-columns: 1fr; }
  .trust .wrap { grid-template-columns: 1fr 1fr; }
}