:root {
  --primary: #0f7180;
  --primary-dark: #0a5966;
  --accent: #23d4e6;
  --green: #19c985;
  --green-dark: #12ad72;
  --text: #172033;
  --muted: #64748b;
  --line: #dbe5ef;
  --bg: #f5f8fb;
  --surface: #ffffff;
  --surface-soft: #f7fbfc;
  --surface-alt: #eef7f8;
  --shadow: 0 18px 46px rgba(15, 23, 42, .08);
  --shadow-soft: 0 10px 28px rgba(15, 23, 42, .05);
  --radius: 22px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 118px;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

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

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 999;
  transform: translateY(-140%);
  background: #fff;
  padding: 10px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.skip-link:focus { transform: translateY(0); }

.top-contact {
  background: #edf7f8;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  font-size: .92rem;
}
.top-contact-inner {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.phones,
.top-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.top-contact a {
  color: var(--primary-dark);
  font-weight: 800;
}
.top-links a {
  color: var(--primary);
  font-weight: 900;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(219,229,239,.95);
}

.header-inner {
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: fit-content;
}

.brand img,
.header-logo {
  width: 175px;
  max-height: 56px;
  object-fit: contain;
  object-position: left center;
}

.main-menu {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #243245;
  font-weight: 800;
  font-size: .95rem;
}

.main-menu a { transition: .2s; }
.main-menu a:hover { color: var(--primary); }

.menu-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff !important;
  box-shadow: 0 12px 26px rgba(15,113,128,.18);
}

.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 14px;
  background: #e8f6f8;
  cursor: pointer;
}
.menu-button span {
  width: 22px;
  height: 2px;
  display: block;
  background: var(--text);
  margin: 5px auto;
  border-radius: 999px;
}

.hero.hero-light {
  background:
    radial-gradient(circle at 85% 12%, rgba(35,212,230,.12), transparent 26%),
    linear-gradient(180deg, #f9fcfd 0%, #eef7f9 100%);
  color: var(--text);
  padding: 74px 0 70px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: center;
}

.eyebrow,
.section-title span,
.support-kicker {
  display: inline-flex;
  padding: 8px 13px;
  border-radius: 999px;
  background: rgba(15,113,128,.08);
  border: 1px solid rgba(15,113,128,.14);
  color: var(--primary);
  font-weight: 900;
  font-size: .84rem;
}

.hero h1,
.section-title h2,
.support-section h2,
.contact-section h2 {
  margin: 18px 0 14px;
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(2.5rem, 5vw, 4.6rem);
}

.hero p,
.support-section p,
.contact-section p {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.07rem;
  margin: 0 0 28px;
}

.hero-actions,
.support-actions {
  display: flex;
  gap: 13px;
  flex-wrap: wrap;
}

.btn {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 21px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 900;
  transition: .2s;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--green);
  color: #032117;
  box-shadow: 0 14px 32px rgba(25,201,133,.18);
}
.btn-primary:hover {
  background: var(--green-dark);
  color: #fff;
}

.btn-outline {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.btn-dark {
  background: var(--primary);
  color: #fff;
}

.btn-light {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line);
}

.btn.full { width: 100%; }

.hero-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.hero-badges span {
  padding: 9px 11px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: #334155;
  font-weight: 700;
  font-size: .9rem;
  box-shadow: var(--shadow-soft);
}

.hero-card {
  background: #fff;
  color: var(--text);
  border-radius: 26px;
  padding: 26px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.card-header {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.card-header strong {
  display: block;
  font-size: 1.35rem;
  letter-spacing: -.03em;
}
.card-header span { color: var(--muted); }
.contact-line {
  display: grid;
  gap: 3px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.contact-line small { color: var(--muted); font-weight: 800; }
.contact-line a {
  color: var(--primary);
  font-size: 1.35rem;
  font-weight: 900;
}
.mini-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 18px 0;
}
.mini-list span {
  padding: 10px;
  background: var(--surface-alt);
  border-radius: 12px;
  color: #334155;
  font-weight: 800;
  font-size: .88rem;
}

.trust-strip {
  margin-top: -16px;
  position: relative;
  z-index: 3;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.trust-grid article {
  background: #fff;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}
.trust-grid strong {
  display: block;
  margin-bottom: 3px;
}
.trust-grid span {
  color: var(--muted);
  font-size: .92rem;
}

.section { padding: 84px 0; }
.section-muted { background: var(--surface-soft); }

.section-title {
  max-width: 760px;
  text-align: center;
  margin: 0 auto 42px;
}
.section-title.left {
  text-align: left;
  margin-left: 0;
}
.section-title h2,
.support-section h2,
.contact-section h2 {
  font-size: clamp(2rem, 4vw, 3.1rem);
}
.section-title p {
  color: var(--muted);
  margin: 0;
  font-size: 1.05rem;
}

.solution-grid,
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.solution-card,
.product-card,
.support-card,
.about-points article,
.download-grid a,
.testimonial-grid article,
.contact-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.solution-card .icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: var(--surface-alt);
  font-size: 1.35rem;
  margin-bottom: 16px;
}
.solution-card h3,
.product-card h3 {
  margin: 0 0 8px;
  font-size: 1.18rem;
  letter-spacing: -.025em;
}
.solution-card p,
.product-card p,
.about-points p {
  margin: 0;
  color: var(--muted);
}

.catalog-toolbar {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.catalog-toolbar button {
  border: 1px solid var(--line);
  background: #fff;
  color: #334155;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 900;
  cursor: pointer;
}
.catalog-toolbar button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.product-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.product-card .label {
  width: fit-content;
  padding: 6px 10px;
  background: #e8f6f8;
  color: var(--primary);
  border-radius: 999px;
  font-weight: 900;
  font-size: .78rem;
}
.price {
  margin-top: auto;
  font-size: 1.25rem;
  color: var(--text);
}
.product-card a {
  color: var(--primary);
  font-weight: 900;
}

.split,
.support-grid,
.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 46px;
  align-items: center;
}

.segments-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.segments-list span {
  padding: 15px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  font-weight: 900;
  box-shadow: var(--shadow-soft);
}

.support-section.support-light {
  background:
    radial-gradient(circle at 88% 18%, rgba(35,212,230,.11), transparent 28%),
    linear-gradient(180deg, #f8fcfd 0%, #eef7f8 100%);
  color: var(--text);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.support-card {
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--shadow);
}
.support-card h3 {
  margin-top: 0;
  font-size: 1.45rem;
}
.support-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.support-card li {
  padding: 13px 14px;
  border-radius: 14px;
  background: var(--surface-alt);
  color: #334155;
  font-weight: 700;
}

.about-logo {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: center;
  align-items: center;
}
.about-logo-img {
  width: min(520px, 100%);
  max-height: 290px;
  object-fit: contain;
}

.about-points {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}
.about-points strong {
  display: block;
  margin-bottom: 4px;
}

.download-grid,
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.download-grid a {
  transition: .2s;
}
.download-grid a:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
}
.download-grid strong {
  display: block;
  margin-bottom: 4px;
}
.download-grid span {
  color: var(--muted);
  font-size: .92rem;
}

.testimonial-grid {
  grid-template-columns: repeat(3, 1fr);
}
.testimonial-grid p {
  color: #334155;
  margin-top: 0;
}
.testimonial-grid strong {
  display: block;
}
.testimonial-grid span {
  color: var(--muted);
  font-size: .92rem;
}

.contact-section.contact-light {
  background: #fff;
  padding: 84px 0;
  border-top: 1px solid var(--line);
}
.contact-section .eyebrow {
  background: rgba(15,113,128,.09);
  border-color: rgba(15,113,128,.14);
  color: var(--primary);
}
.contact-section h2 { color: var(--text); }
.contact-section p { color: var(--muted); }

.contact-box a {
  color: var(--primary);
  font-weight: 900;
}
.contact-box .small {
  color: var(--muted);
  font-size: .9rem;
}

.site-footer {
  background: #f7fbfc;
  color: var(--text);
  padding: 52px 0 26px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .6fr .9fr;
  gap: 34px;
}
.footer-logo {
  width: 180px;
  max-height: 58px;
  object-fit: contain;
  object-position: left center;
  margin-bottom: 14px;
}
.site-footer p {
  color: var(--muted);
  max-width: 420px;
}
.site-footer a {
  display: block;
  margin-top: 8px;
  color: #334155;
}
.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: .9rem;
}

.floating-support {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  padding: 14px 18px;
  border-radius: 999px;
  background: var(--green);
  color: #032117;
  font-weight: 900;
  box-shadow: 0 14px 36px rgba(25,201,133,.22);
}

@media (max-width: 1040px) {
  .hero-grid,
  .split,
  .support-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .trust-grid,
  .download-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-grid,
  .catalog-grid,
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 820px) {
  .container { width: min(100% - 28px, 1180px); }

  .top-contact-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 10px 0;
  }

  .header-inner { height: 74px; }

  .brand img,
  .header-logo {
    width: 148px;
    max-height: 46px;
  }

  .menu-button { display: block; }

  .main-menu {
    position: absolute;
    top: 74px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
  }
  .main-menu.open { display: flex; }
  .menu-cta { text-align: center; }

  .hero { padding: 54px 0; }
  .hero h1 { font-size: clamp(2.15rem, 11vw, 3.2rem); }

  .trust-grid,
  .solution-grid,
  .catalog-grid,
  .download-grid,
  .testimonial-grid,
  .footer-grid,
  .segments-list {
    grid-template-columns: 1fr;
  }

  .section,
  .contact-section { padding: 64px 0; }

  .mini-list { grid-template-columns: 1fr; }

  .footer-bottom { flex-direction: column; }

  .footer-logo {
    width: 150px;
    max-height: 48px;
  }

  .about-logo-img {
    max-height: 220px;
  }

  .floating-support {
    left: 14px;
    right: 14px;
    text-align: center;
  }
}