:root {
  --blue: #075cff;
  --blue-2: #146bff;
  --navy: #071f36;
  --text: #10253f;
  --muted: #63748a;
  --line: #dce8f7;
  --soft: #f6faff;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(7, 31, 54, .10);
  --shadow-card: 0 18px 38px rgba(7, 31, 54, .09);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Manrope, Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.45;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid rgba(220,232,247,.88);
  box-shadow: 0 10px 26px rgba(7,31,54,.05);
  backdrop-filter: blur(18px);
}
.header-inner {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.logo img { width: 260px; height: auto; }
.nav { display: flex; align-items: center; gap: 42px; margin-left: auto; }
.nav a {
  position: relative;
  color: var(--navy);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 5px;
  width: 0;
  height: 3px;
  border-radius: 50px;
  background: var(--blue);
  transition: .22s ease;
  transform: translateX(-50%);
}
.nav a:hover::after { width: 100%; }
.call-btn {
  height: 50px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 9px;
  background: var(--blue);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 14px 26px rgba(7,92,255,.24);
  transition: .22s ease;
}
.call-btn:hover, .btn:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(7,92,255,.28); }
.call-btn i { font-size: 19px; line-height: 1; }
.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.burger span { display: block; width: 20px; height: 2px; margin: 4px auto; border-radius: 8px; background: var(--navy); }

.hero {
  padding: 82px 0 72px;
  background: radial-gradient(circle at 75% 16%, rgba(7,92,255,.08), transparent 32%), linear-gradient(180deg, #fff 0%, #fbfdff 100%);
  overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: .94fr 1.06fr; align-items: center; gap: 54px; }
.hero-copy { padding-top: 10px; }
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 560px;
  margin-bottom: 28px;
  color: var(--navy);
  font-size: clamp(42px, 5.35vw, 72px);
  line-height: 1.08;
  letter-spacing: -.055em;
  font-weight: 800;
}
.lead { max-width: 500px; margin-bottom: 38px; color: #63748a; font-size: 19px; line-height: 1.72; }
.actions { display: flex; flex-wrap: wrap; gap: 30px; margin-bottom: 62px; }
.btn {
  min-width: 205px;
  height: 64px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  transition: .22s ease;
}
.btn.primary { color: #fff; background: var(--blue); box-shadow: 0 18px 32px rgba(7,92,255,.24); }
.btn.secondary { color: var(--blue); background: #fff; border: 2px solid rgba(7,92,255,.55); box-shadow: 0 12px 24px rgba(7,31,54,.05); }
.quick-points { display: flex; align-items: center; gap: 54px; }
.quick-point { display: flex; align-items: center; gap: 14px; color: #475c74; font-size: 15px; font-weight: 600; line-height: 1.35; }
.quick-point i { width: 35px; height: 35px; display: inline-flex; align-items: center; justify-content: center; color: var(--navy); font-size: 28px; line-height: 1; }
.hero-art { position: relative; min-height: 620px; }
.hero-art img {
  position: absolute;
  right: -26px;
  top: 6px;
  width: min(590px, 112%);
  height: auto;
  filter: drop-shadow(0 30px 34px rgba(7,31,54,.08));
  z-index: 2;
}
.blue-slab {
  position: absolute;
  right: 70px;
  top: 72px;
  width: 190px;
  height: 360px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, rgba(7,92,255,.94), rgba(7,92,255,.72));
  opacity: .9;
  z-index: 1;
  transform: skewY(-6deg);
  display: none;
}

.catalog-section {
  padding: 56px 0 70px;
  background: linear-gradient(180deg, #f8fbff 0%, #fff 100%);
}
.category-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 22px; }
.category-card {
  min-height: 245px;
  padding: 32px 18px 28px;
  border: 1px solid rgba(220,232,247,.88);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  text-align: center;
  transition: .22s ease;
}
.category-card:hover { transform: translateY(-6px); border-color: rgba(7,92,255,.35); box-shadow: 0 24px 48px rgba(7,31,54,.12); }
.category-card i { width: 58px; height: 58px; display: inline-flex; align-items: center; justify-content: center; color: var(--blue); font-size: 42px; line-height: 1; }
.category-card h3 { margin: 20px 0 18px; color: var(--navy); font-size: 18px; font-weight: 800; }
.category-card span { color: var(--blue); font-size: 30px; line-height: 1; }

.advantages { padding: 64px 0 82px; background: #fff; }
.section-title { text-align: center; margin-bottom: 44px; }
.section-title h2 { margin-bottom: 22px; font-size: clamp(28px, 3.2vw, 45px); line-height: 1.12; letter-spacing: -.045em; color: var(--navy); }
.section-title span { display: block; width: 116px; height: 1px; margin: 0 auto; background: var(--line); position: relative; }
.section-title span::after { content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 10px; border-radius: 50%; background: var(--blue); transform: translate(-50%,-50%); box-shadow: 0 0 0 8px #fff; }
.advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.advantage { padding: 30px 32px; text-align: center; border-right: 1px solid var(--line); }
.advantage:last-child { border-right: 0; }
.advantage i { width: 64px; height: 64px; margin: 0 auto 28px; display: inline-flex; align-items: center; justify-content: center; color: var(--blue); font-size: 42px; line-height: 1; }
.advantage h3 { margin-bottom: 16px; color: var(--navy); font-size: 20px; font-weight: 800; }
.advantage p { margin: 0 auto; max-width: 235px; color: var(--muted); font-size: 14px; line-height: 1.6; }

.cta-section { padding: 28px 0 68px; background: #fff; }
.cta-card {
  min-height: 170px;
  padding: 38px 54px;
  border: 1px solid rgba(220,232,247,.92);
  border-radius: 13px;
  background: #fff;
  box-shadow: 0 16px 34px rgba(7,31,54,.08);
  display: grid;
  grid-template-columns: 1.15fr .9fr auto;
  align-items: center;
  gap: 34px;
}
.cta-copy h2 { margin-bottom: 14px; max-width: 520px; color: var(--navy); font-size: clamp(26px, 3vw, 36px); line-height: 1.16; letter-spacing: -.04em; }
.cta-copy p { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.58; }
.sketch svg { width: 245px; max-width: 100%; height: auto; stroke: rgba(7,92,255,.48); stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }

.contacts { padding: 26px 0 36px; background: linear-gradient(180deg, #f8fbff 0%, #fff 100%); border-top: 1px solid rgba(220,232,247,.8); }
.contacts-title { margin: 0 0 30px; color: var(--navy); font-size: 28px; font-weight: 800; letter-spacing: -.03em; }
.contacts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.contact-item {
  min-height: 86px;
  padding: 10px 34px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-right: 1px solid var(--line);
}
.contact-item:first-child { padding-left: 0; }
.contact-item:last-child { border-right: 0; }
.contact-item i { width: 38px; height: 38px; flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; color: var(--blue); font-size: 26px; line-height: 1; }
.contact-item strong { display: block; margin-bottom: 6px; color: var(--navy); font-size: 14px; font-weight: 800; }
.contact-item span { color: #51647b; font-size: 14px; line-height: 1.45; }
.footer { padding: 20px 0; border-top: 1px solid var(--line); background: #fff; }
.footer-inner { display: flex; justify-content: space-between; gap: 18px; color: #708095; font-size: 13px; }
.footer p { margin: 0; }
.footer a:hover { color: var(--blue); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1080px) {
  .header-inner { height: 84px; }
  .logo img { width: 220px; }
  .nav { gap: 22px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 52px; }
  .hero-art { min-height: 520px; max-width: 650px; margin: 0 auto; width: 100%; }
  .hero-art img { right: 0; width: 100%; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .advantage-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .advantage { border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 14px 30px rgba(7,31,54,.06); }
  .cta-card { grid-template-columns: 1fr; text-align: left; }
  .contacts-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .contact-item { border: 1px solid var(--line); border-radius: 16px; padding: 18px; background: #fff; }
  .contact-item:first-child { padding-left: 18px; }
}

@media (max-width: 820px) {
  .container { width: min(100% - 32px, 1180px); }
  .nav, .call-btn { display: none; }
  .burger { display: block; }
  .site-header.open .nav {
    display: grid;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 84px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow);
    gap: 6px;
  }
  .site-header.open .nav a { padding: 12px; }
  h1 { font-size: 44px; }
  .lead { font-size: 17px; }
  .quick-points { gap: 22px; flex-wrap: wrap; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .category-card { min-height: 210px; }
  .contacts-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
}

@media (max-width: 560px) {
  .logo img { width: 188px; }
  .hero { padding: 42px 0 46px; }
  .hero-art { min-height: 360px; }
  .actions { gap: 12px; margin-bottom: 34px; }
  .btn { width: 100%; min-width: 0; height: 58px; }
  .quick-points { display: grid; grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .category-card { min-height: 180px; }
  .advantage-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 28px 22px; }
  .sketch { display: none; }
}