/* steklow.ru — glass solutions */

:root {
  --bg: #f6fafd;
  --bg-soft: #edf3fa;
  --ink: #12263a;
  --ink-2: #33526f;
  --muted: #6b8299;
  --navy: #1f4b6e;
  --navy-deep: #14364f;
  --accent: #4a86b3;
  --line: #dce8f2;
  --line-strong: #c7d9e8;
  --card: #ffffff;
  --glass: rgba(255, 255, 255, 0.72);
  --radius: 22px;
  --radius-lg: 30px;
  --shadow-sm: 0 14px 34px -22px rgba(18, 45, 72, 0.35);
  --shadow-md: 0 24px 60px -34px rgba(18, 45, 72, 0.42);
  --shadow-lg: 0 50px 90px -48px rgba(18, 45, 72, 0.5);
  --max: 1220px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

.section { padding: 84px 0; }
.section--tight { padding: 56px 0; }
.section--soft { background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%); }
.section--dark {
  background: radial-gradient(120% 120% at 15% 0%, #20486a 0%, #14324a 55%, #0f2739 100%);
  color: #eaf2f8;
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark .eyebrow { color: #9fc4dd; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 44px;
}
.section__head h2 {
  font-size: clamp(28px, 3vw, 42px);
  max-width: 22ch;
}
.section__head p {
  color: var(--muted);
  max-width: 40ch;
  margin: 0;
}

.lead {
  font-size: 18px;
  color: var(--ink-2);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--navy-deep); transform: translateY(-1px); box-shadow: 0 18px 34px -20px rgba(20, 54, 79, 0.8); }
.btn:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--line-strong);
}
.btn--ghost:hover { background: #fff; box-shadow: var(--shadow-sm); color: var(--navy-deep); }

.btn--light {
  background: #fff;
  color: var(--navy-deep);
}
.btn--light:hover { background: #eaf2f9; }

.btn--sm { padding: 11px 20px; font-size: 14px; }

/* ---------- header ---------- */

.header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.header__in {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 76px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo__mark {
  width: 38px; height: 38px;
  border-radius: 11px;
  background: linear-gradient(145deg, #2c5c83, #163a56);
  display: grid; place-items: center;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35), 0 10px 20px -12px rgba(18,45,72,.8);
  flex: none;
}
.logo__mark svg { width: 20px; height: 20px; }
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__name { font-weight: 700; font-size: 19px; letter-spacing: -0.02em; color: var(--ink); }
.logo__tag { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 9px 13px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
  transition: background 0.18s ease, color 0.18s ease;
}
.nav a:hover { background: var(--bg-soft); color: var(--navy-deep); }
.nav a.is-active { color: var(--navy-deep); background: #eaf1f8; }

.header__actions { display: flex; align-items: center; gap: 18px; }
.header__phone {
  display: flex; flex-direction: column; line-height: 1.2; text-align: right;
}
.header__phone b { font-size: 15.5px; font-weight: 650; color: var(--ink); }
.header__phone span { font-size: 11.5px; color: var(--muted); }

.burger {
  display: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.burger span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.2s; }

/* ---------- hero ---------- */

.hero { position: relative; overflow: hidden; padding: 70px 0 84px; }
.hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 120%;
  background:
    radial-gradient(45% 45% at 78% 18%, rgba(120, 178, 222, 0.30) 0%, rgba(120, 178, 222, 0) 70%),
    radial-gradient(40% 40% at 12% 8%, rgba(168, 205, 235, 0.35) 0%, rgba(168, 205, 235, 0) 70%);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(32px, 4.1vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  white-space: nowrap;
  background: linear-gradient(100deg, #2c5c83 0%, #4c8db8 60%, #7fb2d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead { font-size: 18px; color: var(--ink-2); max-width: 50ch; margin-bottom: 30px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.hero__meta {
  display: flex; flex-wrap: wrap; gap: 26px;
  padding-top: 26px; border-top: 1px solid var(--line);
}
.hero__meta div { display: flex; flex-direction: column; }
.hero__meta b { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; color: var(--navy-deep); }
.hero__meta span { font-size: 13px; color: var(--muted); }

.hero__art { position: relative; height: 460px; }
.pane {
  position: absolute;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 40px 70px -40px rgba(18, 45, 72, 0.55), inset 0 1px 0 rgba(255,255,255,.9);
  backdrop-filter: blur(2px);
  overflow: hidden;
}
.pane::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,0) 42%, rgba(255,255,255,0) 62%, rgba(255,255,255,.45) 100%);
}
.pane--1 {
  width: 54%; height: 78%; top: 4%; left: 8%;
  transform: rotate(-3deg);
  background: linear-gradient(150deg, rgba(198, 226, 245, 0.92), rgba(140, 190, 224, 0.6));
}
.pane--2 {
  width: 46%; height: 62%; right: 2%; top: 26%;
  transform: rotate(2.5deg);
  background: linear-gradient(160deg, rgba(226, 240, 250, 0.92), rgba(164, 204, 232, 0.55));
}
.pane--3 {
  width: 34%; height: 42%; left: 22%; bottom: 2%;
  transform: rotate(1.5deg);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.9), rgba(190, 219, 240, 0.65));
}
.pane__frame {
  position: absolute;
  inset: 14px;
  border: 2px solid rgba(255, 255, 255, 0.55);
  border-radius: 9px;
  pointer-events: none;
}
.hero__badge {
  position: absolute;
  left: 0; bottom: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 18px;
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: 12px;
  z-index: 3;
}
.hero__badge b { display: block; font-size: 15px; }
.hero__badge span { font-size: 12.5px; color: var(--muted); }
.hero__badge .dot { width: 34px; height: 34px; border-radius: 10px; background: #e8f2f9; display: grid; place-items: center; color: var(--navy); }

/* ---------- stats strip ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stats div { background: #fff; padding: 26px 24px; }
.stats b { display: block; font-size: 30px; font-weight: 700; letter-spacing: -0.03em; color: var(--navy-deep); }
.stats span { font-size: 13.5px; color: var(--muted); }

/* ---------- cards ---------- */

.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(150deg, #eaf3fa, #dbe9f5);
  display: grid; place-items: center;
  margin-bottom: 20px;
  color: var(--navy);
  border: 1px solid rgba(255,255,255,.8);
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; margin-bottom: 18px; }
.card__link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  display: inline-flex; align-items: center; gap: 6px;
}
.card__link::after { content: "→"; transition: transform 0.2s; }
.card:hover .card__link::after { transform: translateX(4px); }
.card__price {
  margin-top: auto;
  font-size: 14px;
  color: var(--muted);
}
.card__price b { color: var(--navy-deep); font-size: 18px; font-weight: 650; }

/* ---------- features ---------- */

.feature { display: flex; gap: 16px; }
.feature__num {
  width: 40px; height: 40px; flex: none;
  border-radius: 12px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  display: grid; place-items: center;
  font-weight: 700; font-size: 15px; color: #cfe4f4;
}
.feature h3 { font-size: 17px; margin-bottom: 6px; }
.feature p { font-size: 14.5px; color: #a9c6db; margin: 0; }

/* ---------- steps ---------- */

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: s; }
.step { position: relative; padding-top: 30px; }
.step::before {
  counter-increment: s;
  content: "0" counter(s);
  position: absolute; top: 0; left: 0;
  font-size: 13px; font-weight: 700; letter-spacing: .1em; color: var(--accent);
}
.step::after {
  content: "";
  position: absolute; top: 6px; left: 34px; right: 0;
  height: 1px; background: var(--line);
}
.step:last-child::after { display: none; }
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--muted); margin: 0; }

/* ---------- tiles (portfolio) ---------- */

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tile {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 260px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  transition: transform .25s ease, box-shadow .25s ease;
}
.tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tile::before {
  content: "";
  position: absolute; inset: 0;
  z-index: -2;
  background: var(--tile-bg, linear-gradient(150deg, #cfe3f3, #8fb8d6));
}
.tile::after {
  content: "";
  position: absolute; inset: 0;
  z-index: -1;
  background:
    linear-gradient(115deg, rgba(255,255,255,.55) 0%, rgba(255,255,255,0) 38%, rgba(255,255,255,0) 60%, rgba(255,255,255,.35) 100%),
    linear-gradient(0deg, rgba(10, 32, 50, .78) 0%, rgba(10, 32, 50, .18) 42%, rgba(10, 32, 50, 0) 70%);
}
.tile__in { padding: 24px; color: #fff; position: relative; }
.tile__in b { display: block; font-size: 18px; font-weight: 650; letter-spacing: -0.01em; }
.tile__in span { font-size: 13px; opacity: .85; }

.t1 { --tile-bg: linear-gradient(150deg, #cfe3f3 0%, #8fb8d6 70%); }
.t2 { --tile-bg: linear-gradient(160deg, #e3eef7 0%, #a9c9e0 60%, #7aa6c6 100%); }
.t3 { --tile-bg: linear-gradient(140deg, #d6e6f2 0%, #9dc2da 55%, #6f9dbd 100%); }
.t4 { --tile-bg: linear-gradient(150deg, #eaf2f8 0%, #b9d3e6 60%, #86aecb 100%); }
.t5 { --tile-bg: linear-gradient(160deg, #cdddea 0%, #8fb2cc 60%, #5d8aa9 100%); }
.t6 { --tile-bg: linear-gradient(140deg, #dbe9f4 0%, #a7c6dd 60%, #79a3c1 100%); }
.t7 { --tile-bg: linear-gradient(150deg, #e8f1f8 0%, #b5cfe3 55%, #86adc9 100%); }
.t8 { --tile-bg: linear-gradient(160deg, #d2e2ef 0%, #97bacf 60%, #6d95b3 100%); }
.t9 { --tile-bg: linear-gradient(140deg, #ddeaf5 0%, #a9c9e2 55%, #7fa8c6 100%); }

/* ---------- reviews ---------- */

.review {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.review p { font-size: 15.5px; color: var(--ink-2); }
.review__author { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.review__ava {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(150deg, #dfeaf4, #bdd4e6);
  display: grid; place-items: center;
  font-weight: 700; font-size: 15px; color: var(--navy-deep);
}
.review__author b { display: block; font-size: 14.5px; }
.review__author span { font-size: 12.5px; color: var(--muted); }

/* ---------- faq ---------- */

.faq { display: grid; gap: 12px; }
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0 24px;
  transition: border-color .2s;
}
.faq details[open] { border-color: var(--line-strong); box-shadow: var(--shadow-sm); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 0;
  font-weight: 600;
  font-size: 16.5px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 22px; font-weight: 400; color: var(--accent);
  transition: transform .2s;
  line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { padding: 0 0 22px; color: var(--muted); font-size: 15px; max-width: 80ch; }

/* ---------- cta ---------- */

.cta {
  border-radius: var(--radius-lg);
  background: radial-gradient(120% 140% at 12% 0%, #2a5b80 0%, #1a4260 55%, #13354e 100%);
  color: #eaf2f8;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.cta h2 { color: #fff; font-size: clamp(26px, 2.6vw, 36px); margin-bottom: 14px; }
.cta p { color: #b9d2e4; margin: 0; }

.form { display: grid; gap: 12px; }
.form input {
  width: 100%;
  padding: 15px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.07);
  color: #fff;
  font: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color .2s, background .2s;
}
.form input::placeholder { color: #9fbcd2; }
.form input:focus { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.12); }
.form .btn { width: 100%; margin-top: 4px; }
.form__note { font-size: 12px; color: #9fbcd2; line-height: 1.5; margin-top: 4px; }
.form__msg { font-size: 14px; min-height: 20px; color: #bfe3c9; }

/* ---------- footer ---------- */

.footer {
  background: #0f2739;
  color: #b9cfe0;
  padding: 64px 0 32px;
  font-size: 14.5px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer h4 { color: #fff; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 16px; font-weight: 600; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer a:hover { color: #fff; }
.footer__brand p { color: #8fb0c8; font-size: 14px; margin: 14px 0 0; max-width: 34ch; }
.footer .logo__name { color: #fff; }
.footer .logo__tag { color: #7d9db5; }
.footer__bottom {
  display: flex; justify-content: space-between; gap: 20px;
  padding-top: 26px; font-size: 12.5px; color: #6f90a8;
  flex-wrap: wrap;
}

/* ---------- breadcrumbs / page head ---------- */

.breadcrumbs {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-size: 13px; color: var(--muted);
  padding-top: 26px;
}
.breadcrumbs a:hover { color: var(--navy); }
.breadcrumbs span { opacity: .5; }

.page-head { padding-top: 24px; padding-bottom: 44px; }
.page-head h1 { font-size: clamp(30px, 3.6vw, 46px); max-width: 26ch; margin-bottom: 16px; }
.page-head p { font-size: 17.5px; color: var(--ink-2); max-width: 62ch; margin: 0; }

/* ---------- prose ---------- */

.prose { max-width: 74ch; }
.prose h2 { font-size: 26px; margin: 40px 0 16px; }
.prose h3 { font-size: 20px; margin: 30px 0 12px; }
.prose p, .prose li { color: var(--ink-2); font-size: 16.5px; }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 1.2em; }
.prose li { margin-bottom: 8px; }
.prose blockquote {
  margin: 28px 0;
  padding: 22px 26px;
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  border-radius: 0 14px 14px 0;
  color: var(--ink-2);
}
.prose img { border-radius: var(--radius); margin: 26px 0; }

/* ---------- price table ---------- */

.price-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.price-table th, .price-table td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.price-table th { font-size: 12.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.price-table td:last-child, .price-table th:last-child { text-align: right; white-space: nowrap; font-weight: 600; color: var(--navy-deep); }
.price-table tr:hover td { background: rgba(255,255,255,.6); }
.table-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow-x: auto; }

/* ---------- contacts ---------- */

.contacts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.contact-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px;
}
.contact-card h3 { font-size: 15px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 12px; font-weight: 600; }
.contact-card b { font-size: 20px; color: var(--ink); display: block; margin-bottom: 4px; }
.contact-card p { color: var(--muted); font-size: 14.5px; margin: 0; }
.map {
  height: 320px; border-radius: var(--radius); border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(31,75,110,.06) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(rgba(31,75,110,.06) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(150deg, #eaf2f9, #d9e6f1);
  position: relative; overflow: hidden;
}
.map__pin {
  position: absolute; left: 46%; top: 44%;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--navy);
  box-shadow: 0 0 0 8px rgba(31, 75, 110, .15), 0 0 0 18px rgba(31, 75, 110, .07);
}
.map__label {
  position: absolute; left: 46%; top: 52%;
  transform: translateX(-20%);
  background: #fff; border: 1px solid var(--line);
  border-radius: 10px; padding: 8px 12px; font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow-sm); white-space: nowrap;
}

/* ---------- misc ---------- */

.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; font-size: 15.5px; color: var(--ink-2); }
.checklist li::before {
  content: "";
  width: 22px; height: 22px; flex: none; border-radius: 7px;
  background: #e6f0f8 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231f4b6e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat;
  margin-top: 2px;
}

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.tag {
  font-size: 12.5px; font-weight: 500; color: var(--navy);
  background: #e9f1f8; border-radius: 999px; padding: 6px 12px;
}

.note {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 16px; padding: 18px 22px; font-size: 14.5px; color: var(--ink-2);
}

.not-found { text-align: center; padding: 120px 0; }
.not-found b { display: block; font-size: 120px; line-height: 1; letter-spacing: -0.05em; color: #dbe8f3; font-weight: 800; }
.not-found h1 { font-size: 30px; margin: 12px 0 14px; }
.not-found p { color: var(--muted); margin-bottom: 26px; }

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .nav { display: none; }
  .burger { display: inline-flex; }
  .header__actions { margin-left: auto; }
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .hero__art { height: 360px; order: -1; }
  .cta { grid-template-columns: 1fr; padding: 40px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 30px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .section { padding: 60px 0; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 34px; }
  .contacts-grid { grid-template-columns: 1fr; }
  .section__head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .header__phone { display: none; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .section { padding: 48px 0; }
  .tiles { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .grid--4 { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 56px; }
  .hero__art { height: 280px; }
  .cta { padding: 30px 22px; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .form .btn { width: 100%; }
  .hero__actions .btn { width: auto; }
}

/* mobile menu */
.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  background: #fff;
  padding-top: 12px;
  padding-bottom: 18px;
}
.mobile-nav.is-open { display: block; }
.mobile-nav a {
  display: block;
  padding: 12px 4px;
  font-size: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
}
.mobile-nav a:last-child { border-bottom: none; }