/* ===== Базовые переменные и сброс ===== */
:root {
  --bg: #ffffff;
  --bg-muted: #f4f6f9;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --text: #1f2937;
  --text-soft: #64748b;
  --accent: #f97316;
  --accent-dark: #ea580c;
  --line: #e5e9f0;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.16);
  --container: 1180px;
  --font: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}
.container--narrow { max-width: 820px; }

h1, h2, h3, h4, h5 { line-height: 1.15; font-weight: 800; color: var(--dark); }

/* ===== Кнопки ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  font-size: 16px;
  border-radius: 12px;
  padding: 13px 22px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(249, 115, 22, .35); }
.btn--primary:hover { background: var(--accent-dark); box-shadow: 0 10px 26px rgba(249, 115, 22, .45); }
.btn--ghost { background: transparent; border-color: rgba(255,255,255,.5); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.12); }
.btn--lg { padding: 16px 30px; font-size: 17px; }
.btn--block { width: 100%; }

/* ===== Шапка ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 800; color: var(--dark); }
.logo__mark { color: var(--accent); font-size: 22px; }
.logo__text b { color: var(--accent); font-weight: 800; }
.logo--light { color: #fff; }
.logo--light .logo__text b { color: var(--accent); }

.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--text-soft); font-weight: 600; font-size: 15px; transition: color .15s; }
.nav a:hover { color: var(--accent); }

.header__phone { font-weight: 800; color: var(--dark); font-size: 17px; white-space: nowrap; }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.burger span { width: 24px; height: 2px; background: var(--dark); border-radius: 2px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(249,115,22,.12), transparent),
    linear-gradient(180deg, #fbfcfe, #f4f6f9);
  padding: 60px 0 70px;
  overflow: hidden;
}
.hero__inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero__badge {
  display: inline-block;
  background: rgba(249,115,22,.12);
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 14px;
  padding: 7px 14px;
  border-radius: 30px;
  margin-bottom: 20px;
}
.hero h1 { font-size: 52px; letter-spacing: -1px; }
.hero h1 span { color: var(--accent); }
.hero__lead { font-size: 19px; color: var(--text-soft); margin: 18px 0 26px; max-width: 520px; }
.hero__facts { list-style: none; display: flex; gap: 28px; margin-bottom: 30px; flex-wrap: wrap; }
.hero__facts li { display: flex; flex-direction: column; }
.hero__facts b { font-size: 26px; color: var(--dark); }
.hero__facts span { font-size: 14px; color: var(--text-soft); }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 22px; }
.hero__actions .btn--ghost { border-color: var(--line); color: var(--dark); }
.hero__actions .btn--ghost:hover { background: #fff; }
.hero__trust { display: flex; flex-wrap: wrap; gap: 6px 20px; color: var(--text-soft); font-size: 14px; font-weight: 600; }

.hero__form {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
}
.hero__form h2 { font-size: 24px; margin-bottom: 8px; }
.hero__form > p { color: var(--text-soft); font-size: 15px; margin-bottom: 20px; }
.lead-form { display: flex; flex-direction: column; gap: 12px; }
.lead-form input {
  font-family: inherit;
  font-size: 16px;
  padding: 14px 16px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  transition: border-color .15s;
}
.lead-form input:focus { outline: none; border-color: var(--accent); }
.lead-form small { color: var(--text-soft); font-size: 12px; text-align: center; line-height: 1.4; }
.form-status { font-size: 14px; font-weight: 700; text-align: center; padding: 10px 12px; border-radius: 10px; margin: 0; }
.form-status--ok { background: #e7f8ee; color: #1a7f45; }
.form-status--err { background: #fdecec; color: #c0392b; }

/* ===== Stats ===== */
.stats { background: var(--dark); color: #fff; padding: 26px 0; }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stats__grid b { display: block; font-size: 28px; color: #fff; }
.stats__grid span { color: #94a3b8; font-size: 14px; }

/* ===== Секции ===== */
.section { padding: 76px 0; }
.section--muted { background: var(--bg-muted); }
.section--dark { background: var(--dark); }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section__head h2 { font-size: 36px; margin-bottom: 12px; }
.section__head p { color: var(--text-soft); font-size: 17px; }
.section__head--light h2 { color: #fff; }
.section__head--light p { color: #94a3b8; }

/* ===== Карточки услуг ===== */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.card__icon { font-size: 36px; margin-bottom: 14px; }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--text-soft); font-size: 15px; margin-bottom: 16px; }
.card__price { font-weight: 800; color: var(--accent); font-size: 18px; }

/* ===== Преимущества ===== */
.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.benefit { background: #fff; border-radius: var(--radius); padding: 24px; border: 1px solid var(--line); }
.benefit span { font-size: 30px; }
.benefit h4 { font-size: 18px; margin: 12px 0 8px; }
.benefit p { color: var(--text-soft); font-size: 15px; }

/* ===== Таблица цен ===== */
.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
.price-table { width: 100%; border-collapse: collapse; background: #fff; min-width: 560px; }
.price-table th, .price-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--line); }
.price-table thead th { background: var(--dark); color: #fff; font-size: 15px; }
.price-table tbody tr:last-child td { border-bottom: none; }
.price-table tbody tr:hover { background: var(--bg-muted); }
.price-table td:nth-child(3) { font-weight: 800; color: var(--accent); }
.price-note { text-align: center; color: var(--text-soft); font-size: 14px; margin-top: 18px; }

/* ===== Калькулятор ===== */
.calc { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; background: var(--dark-2); border-radius: 20px; padding: 32px; }
.calc__controls { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.calc__result { min-width: 0; }
.calc__field { display: flex; flex-direction: column; gap: 10px; color: #e2e8f0; font-weight: 600; min-width: 0; }
.calc__field b { color: var(--accent); }
.calc__field select {
  width: 100%; max-width: 100%; min-width: 0;
  font-family: inherit; font-size: 16px; padding: 13px 14px; border-radius: 10px;
  border: 1.5px solid #334155; background: #0f172a; color: #fff;
}
.calc__field input[type="range"] { width: 100%; max-width: 100%; min-width: 0; accent-color: var(--accent); height: 6px; }
.calc__check { display: flex; align-items: center; gap: 10px; color: #cbd5e1; font-weight: 600; cursor: pointer; }
.calc__check input { width: 20px; height: 20px; accent-color: var(--accent); }
.calc__result {
  background: linear-gradient(160deg, #fff, #f4f6f9);
  border-radius: 16px; padding: 26px; text-align: center;
  display: flex; flex-direction: column; justify-content: center; gap: 8px;
}
.calc__result-label { color: var(--text-soft); font-weight: 600; }
.calc__result-value { font-size: 40px; font-weight: 800; color: var(--dark); }
.calc__result-hint { font-size: 13px; color: var(--text-soft); margin-bottom: 10px; }

/* ===== Работы ===== */
.works { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.work { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.work__ph {
  aspect-ratio: 4/3;
  background: repeating-linear-gradient(45deg, #e2e8f0, #e2e8f0 12px, #eef2f7 12px, #eef2f7 24px);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-soft); font-weight: 700; text-align: center; padding: 10px;
}
.work__img { display: block; width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; }
.work figcaption { padding: 14px 16px; font-size: 14px; color: var(--text-soft); font-weight: 600; }

/* ===== Шаги ===== */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.steps li { background: #fff; border-radius: var(--radius); padding: 26px 22px; border: 1px solid var(--line); position: relative; }
.steps li b {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 50%; background: var(--accent); color: #fff;
  font-size: 20px; margin-bottom: 14px;
}
.steps li h4 { font-size: 18px; margin-bottom: 8px; }
.steps li p { color: var(--text-soft); font-size: 15px; }

/* ===== Отзывы ===== */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review { background: #fff; border-radius: var(--radius); padding: 26px; border: 1px solid var(--line); }
.review__stars { color: var(--accent); font-size: 18px; letter-spacing: 2px; margin-bottom: 12px; }
.review p { font-size: 15px; margin-bottom: 14px; }
.review footer { color: var(--text-soft); font-weight: 700; font-size: 14px; }

/* ===== География работ ===== */
.geo { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.geo__col { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.geo__col h3 { font-size: 18px; margin-bottom: 10px; color: var(--accent-dark); }
.geo__col p { color: var(--text-soft); font-size: 15px; }

/* ===== SEO-текст ===== */
.seo-text p { color: var(--text-soft); margin-bottom: 16px; font-size: 16px; }
.seo-text h3 { font-size: 20px; margin: 26px 0 10px; }
.seo-text strong { color: var(--dark); }
.seo-text a { color: var(--accent-dark); text-decoration: underline; }

/* ===== FAQ ===== */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 4px 20px;
}
.faq summary {
  cursor: pointer; font-weight: 700; padding: 16px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; color: var(--dark);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--accent); font-size: 24px; font-weight: 700; }
.faq details[open] summary::after { content: '−'; }
.faq details p { color: var(--text-soft); padding: 0 0 16px; font-size: 15px; }

/* ===== Финальный CTA ===== */
.cta { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; padding: 56px 0; }
.cta__inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta h2 { color: #fff; font-size: 32px; margin-bottom: 8px; }
.cta p { font-size: 17px; opacity: .95; }
.cta__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta__actions .btn--primary { background: #fff; color: var(--accent-dark); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.cta__actions .btn--primary:hover { background: #fff8f3; }

/* ===== Подвал ===== */
.footer { background: var(--dark); color: #cbd5e1; padding: 50px 0 24px; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; padding-bottom: 30px; border-bottom: 1px solid #1e293b; }
.footer__col h5 { color: #fff; font-size: 15px; margin-bottom: 14px; text-transform: uppercase; letter-spacing: .5px; }
.footer__col p { font-size: 14px; color: #94a3b8; }
.footer__col a { display: block; color: #cbd5e1; font-size: 14px; margin-bottom: 8px; transition: color .15s; }
.footer__col a:hover { color: var(--accent); }
.footer__bottom { display: flex; justify-content: space-between; padding-top: 20px; font-size: 13px; color: #64748b; flex-wrap: wrap; gap: 10px; }

/* ===== Плавающая кнопка ===== */
.fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 60;
  width: 58px; height: 58px; border-radius: 50%;
  background: #25d366; box-shadow: 0 8px 24px rgba(37, 211, 102, .5);
  display: flex; align-items: center; justify-content: center;
  transition: transform .15s;
}
.fab:hover { transform: scale(1.08); }
.fab__icon { font-size: 26px; }

/* ===== Липкая панель звонка (моб.) ===== */
.mobile-bar { display: none; }
.mobile-bar__btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; border-radius: 12px; font-weight: 700; font-size: 16px; color: #fff;
}
.mobile-bar__btn span { font-size: 18px; }
.mobile-bar__btn--call { background: var(--accent); box-shadow: 0 6px 16px rgba(249,115,22,.4); }
.mobile-bar__btn--wa { background: #25d366; box-shadow: 0 6px 16px rgba(37,211,102,.4); }

/* ===== Адаптив ===== */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .cards, .works, .reviews, .steps, .benefits, .geo { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .calc { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .mobile-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
    border-top: 1px solid var(--line); box-shadow: 0 -6px 20px rgba(15, 23, 42, .1);
  }
  .fab { display: none; }
  body { padding-bottom: 84px; }

  .nav { display: none; }
  .header__phone { display: none; }
  .burger { display: flex; }
  .nav.is-open {
    display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; padding: 16px 20px; gap: 4px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .nav.is-open a { padding: 10px 0; }
  .hero { padding: 36px 0 46px; }
  .hero h1 { font-size: 36px; }
  .hero__lead { font-size: 17px; }
  .section { padding: 52px 0; }
  .section__head h2 { font-size: 28px; }
  .cta__inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .cards, .works, .reviews, .steps, .benefits, .geo { grid-template-columns: 1fr; }
  .hero__facts { gap: 18px; }
  .footer__inner { grid-template-columns: 1fr; }
}