/* ============================================================
   ТЕМА «ВЕРШИНИНА» — слоновая кость, глубокий зелёный, латунь
   ============================================================ */
:root {
  --bg:        #F5F2EA;  /* тёплая бумага */
  --surface:   #FCFBF7;
  --tint:      #EDE9DD;
  --ink:       #212836;
  --ink-soft:  #5B6272;
  --accent:    #2E5941;  /* глубокий зелёный */
  --accent-dn: #244A35;
  --brass:     #A9853F;  /* латунь — детали */
  --dark:      #1E2B24;  /* тёмная секция формы */
  --dark-2:    #27362E;
  --on-dark:   #F5F2EA;
  --on-dark-soft: #A9B4AA;
  --line:      #DCD5C4;

  --font-display: "Piazzolla", Georgia, serif;
  --font-body:    "Golos Text", -apple-system, sans-serif;

  --radius: 6px;
  --container: 1120px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

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

img { max-width: 100%; display: block; }
ul[class], ol[class] { list-style: none; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: 0.005em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.1rem, 4.6vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); margin-bottom: 0.5em; }
h3 { font-size: 1.25rem; }

.container { max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container--narrow { max-width: 820px; }

.section { padding-block: clamp(64px, 9vw, 110px); }
.section--tint { background: var(--tint); }
.section--dark { background: var(--dark); color: var(--on-dark); }
.section__sub { max-width: 560px; color: var(--ink-soft); margin-bottom: 40px; }

.eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--brass);
  margin-bottom: 14px;
}

/* ---------- кнопки ---------- */
.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  font-family: var(--font-body);
}
.btn:hover { background: var(--accent-dn); border-color: var(--accent-dn); }
.btn:active { transform: translateY(1px); }
.btn--small { padding: 10px 18px; font-size: 0.9rem; }
.btn--block { display: block; width: 100%; text-align: center; }

:focus-visible { outline: 3px solid var(--brass); outline-offset: 2px; }

/* ---------- шапка ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__inner { display: flex; align-items: center; gap: 28px; height: 72px; }
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  line-height: 1.1;
  display: flex;
  flex-direction: column;
}
.logo span {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brass);
  margin-top: 3px;
}
.nav { display: flex; gap: 22px; margin-inline: auto; }
.nav a {
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink-soft);
  transition: color 0.15s;
}
.nav a:hover { color: var(--ink); }
.header__actions { display: flex; align-items: center; gap: 18px; }
.header__phone { font-weight: 600; font-size: 0.95rem; text-decoration: none; white-space: nowrap; }
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; cursor: pointer; }
.burger span { width: 24px; height: 2px; background: var(--ink); transition: transform 0.2s, opacity 0.2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- хиро ---------- */
.hero { padding-block: clamp(72px, 10vw, 120px) clamp(56px, 8vw, 96px); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.hero__sub { font-size: 1.15rem; color: var(--ink-soft); max-width: 540px; margin-top: 22px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 34px; }
.hero__note { font-size: 0.88rem; color: var(--ink-soft); line-height: 1.5; }

.hero__facts { display: grid; gap: 0; border-top: 2px solid var(--ink); }
.fact { padding: 22px 0; border-bottom: 1px solid var(--line); }
.fact b {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--accent);
  line-height: 1.1;
}
.fact span { font-size: 0.9rem; color: var(--ink-soft); }

/* ---------- практики ---------- */
.practice {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}
.practice__item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--brass);
  border-radius: var(--radius);
  padding: 28px 26px;
}
.practice__item h3 { margin-bottom: 10px; }
.practice__item p { font-size: 0.95rem; color: var(--ink-soft); }

/* ---------- результаты ---------- */
.results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}
.result {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.result__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  color: var(--accent);
  line-height: 1.05;
  margin-bottom: 14px;
}
.result h3 { font-size: 1.1rem; margin-bottom: 10px; }
.result p:last-child { font-size: 0.95rem; color: var(--ink-soft); }
.results__note {
  margin-top: 24px;
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-style: italic;
}

/* ---------- этапы ---------- */
.steps { counter-reset: step; margin-top: 44px; display: grid; }
.step {
  counter-increment: step;
  position: relative;
  padding: 26px 0 26px 84px;
  border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step::before {
  content: counter(step) ".";
  position: absolute;
  left: 8px;
  top: 22px;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--brass);
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--ink-soft); max-width: 640px; font-size: 0.98rem; }

/* ---------- отзывы ---------- */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.review {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
}
.review p { flex: 1; font-size: 0.97rem; font-style: italic; font-family: var(--font-display); font-weight: 500; line-height: 1.55; }
.review footer { margin-top: 18px; font-size: 0.88rem; color: var(--ink-soft); }
.review footer b { color: var(--ink); }

/* ---------- FAQ ---------- */
.faq { margin-top: 40px; display: grid; gap: 12px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 24px; }
.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 20px 36px 20px 0;
  position: relative;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--brass);
  transition: transform 0.2s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding-bottom: 22px; color: var(--ink-soft); font-size: 0.97rem; }

/* ---------- форма ---------- */
.lead { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.lead__text .eyebrow { color: var(--brass); }
.lead__text > p:not(.eyebrow) { color: var(--on-dark-soft); margin-top: 16px; max-width: 460px; }
.lead__contacts { margin-top: 30px; display: grid; gap: 10px; font-size: 0.98rem; }
.lead__contacts a { color: #C9B57E; text-decoration: none; }
.lead__contacts a:hover { text-decoration: underline; }

.form {
  background: var(--dark-2);
  border: 1px solid #3A4A40;
  border-radius: var(--radius);
  padding: 34px 30px;
}
.form__field { margin-bottom: 20px; }
.form__field label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 8px; }
.form__field label span { font-weight: 400; color: var(--on-dark-soft); }
.form input[type="text"],
.form input[type="tel"],
.form textarea {
  width: 100%;
  padding: 13px 16px;
  background: var(--dark);
  border: 1px solid #3A4A40;
  border-radius: var(--radius);
  color: var(--on-dark);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.15s;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--brass); }
.form input::placeholder, .form textarea::placeholder { color: #6E7C71; }
.form textarea { resize: vertical; }
.form__consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.85rem;
  color: var(--on-dark-soft);
  margin-bottom: 22px;
  cursor: pointer;
}
.form__consent input { margin-top: 3px; accent-color: var(--accent); }
.form .btn { background: var(--brass); border-color: var(--brass); color: #1E2B24; }
.form .btn:hover { background: #8F6F32; border-color: #8F6F32; }
.form__status { margin-top: 14px; font-size: 0.92rem; min-height: 1.4em; }
.form__status.is-ok { color: #9CC79F; }
.form__status.is-err { color: #E89A9A; }

/* ---------- футер ---------- */
.footer { background: var(--dark); color: var(--on-dark-soft); padding-block: 28px; font-size: 0.85rem; border-top: 1px solid #3A4A40; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 8px 32px; justify-content: space-between; }
.footer a { color: inherit; }

/* ---------- появление при скролле ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- адаптив ---------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__facts { grid-template-columns: repeat(3, 1fr); border-top: none; }
  .fact { border-top: 2px solid var(--ink); padding: 16px 12px 16px 0; }
  .practice, .reviews, .results { grid-template-columns: 1fr; max-width: 560px; margin-inline: auto; margin-top: 44px; }
  .lead { grid-template-columns: 1fr; }
  .header__phone { display: none; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav {
    position: fixed;
    inset: 72px 0 auto 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    transform: translateY(-130%);
    transition: transform 0.25s ease;
    z-index: 40;
  }
  .nav.is-open { transform: none; }
  .nav a { padding: 12px 0; font-size: 1.05rem; }
  .burger { display: flex; }
  .header__actions .btn { display: none; }
  .hero__facts { grid-template-columns: 1fr; }
  .fact { border-top: none; border-bottom: 1px solid var(--line); padding: 14px 0; display: flex; align-items: baseline; gap: 12px; }
  .fact:first-child { border-top: 2px solid var(--ink); }
  .step { padding-left: 48px; }
  .step::before { left: 0; font-size: 1.3rem; top: 26px; }
}