/* ============ Поставщик — 7406670.ru (светлая «небесная» тема) ============ */
:root {
  --sky: #2f9ee6;
  --sky-deep: #0a66a6;
  --sky-soft: #bfe4ff;
  --sky-glow: #e6f4ff;
  --navy: #123049;
  --muted: #5c7893;
  --tint: #eaf5ff;
  --tint-2: #f4faff;
  --line: #d8e9fa;
  --white: #ffffff;
  --radius: 16px;
  --wrap: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  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: 10px; color: var(--navy); }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--sky); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 21px;
  box-shadow: 0 6px 16px rgba(47,158,230,.35);
}
.logo-word { display: flex; flex-direction: column; line-height: 1; }
.logo-text { font-weight: 800; font-size: 18px; letter-spacing: 2px; white-space: nowrap; color: var(--navy); }
.logo-tag {
  font-size: 10px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--sky-deep); font-weight: 700; margin-top: 4px; white-space: nowrap;
}
.main-nav { display: flex; gap: 26px; margin-left: auto; }
.main-nav a { color: var(--muted); font-weight: 600; font-size: 15px; transition: color .15s; }
.main-nav a:hover { color: var(--sky-deep); }
.btn-nav { margin-left: 8px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 26px; border-radius: 12px; font-weight: 700; font-size: 15px;
  transition: transform .15s, background .15s, box-shadow .15s, color .15s;
}
.btn-accent { background: var(--sky); color: #fff; box-shadow: 0 8px 20px rgba(47,158,230,.28); }
.btn-accent:hover { background: var(--sky-deep); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(10,102,166,.35); }
.btn-ghost { background: #fff; color: var(--navy); border: 1.5px solid var(--sky-soft); }
.btn-ghost:hover { border-color: var(--sky); color: var(--sky-deep); background: var(--tint-2); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; border-radius: 2px; transition: .2s; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1200px 520px at 82% -12%, #d6ecff 0%, rgba(214,236,255,0) 62%),
    linear-gradient(180deg, #f1f9ff 0%, #ffffff 100%);
  color: var(--navy); overflow: hidden;
}
.hero-inner {
  display: grid; grid-template-columns: minmax(0, 1.5fr) auto;
  gap: 48px; align-items: center;
  padding: 96px 24px 72px; max-width: var(--wrap); margin: 0 auto;
}
.hero-eyebrow {
  color: var(--sky-deep); font-weight: 800; letter-spacing: 2px;
  text-transform: uppercase; font-size: 13px; margin-bottom: 22px;
}
.hero-title {
  font-size: clamp(44px, 9vw, 92px);
  line-height: 1.02; font-weight: 800; letter-spacing: -2px;
  max-width: 12ch; color: var(--navy);
}
.hero-title .strike { color: var(--sky); position: relative; }
.hero-title .strike::after {
  content: ""; position: absolute; left: -3%; right: -3%; top: 52%;
  height: 0.14em; background: var(--sky-deep);
  border-radius: 4px; transform: rotate(-2deg);
}
.hero-sub { color: var(--muted); font-size: 19px; max-width: 620px; margin: 26px 0 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stamp { justify-self: end; }
.stamp {
  position: relative; text-align: center; color: var(--sky-deep);
  background: rgba(255, 255, 255, 0.75);
  border: 4px solid var(--sky); border-radius: 20px;
  padding: 32px 42px; transform: rotate(-4deg);
  box-shadow: 0 22px 56px rgba(47, 158, 230, 0.26);
}
.stamp::before {
  content: ""; position: absolute; inset: 8px;
  border: 2px dashed rgba(10, 102, 166, 0.45); border-radius: 13px;
}
.stamp-top, .stamp-bot { display: block; text-transform: uppercase; font-weight: 700; }
.stamp-top { font-size: 13px; letter-spacing: 4px; }
.stamp-main { display: block; font-size: clamp(40px, 4.6vw, 58px); font-weight: 800; letter-spacing: 3px; line-height: 1; margin: 16px 0; color: var(--sky); }
.stamp-bot { font-size: 13px; letter-spacing: 4px; opacity: .85; }

.marquee {
  background: var(--sky); color: #fff;
  padding: 12px 0; white-space: nowrap; overflow: hidden;
  font-weight: 800; font-size: 17px;
}
.marquee-track { display: inline-flex; gap: 22px; animation: scroll 28s linear infinite; width: max-content; }
.marquee-track .dot { opacity: .6; }
.marquee-track span { display: inline-block; }
@keyframes scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Stats ---------- */
.stats { background: var(--tint-2); border-bottom: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; padding: 44px 24px; }
.stat-value { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; color: var(--navy); }
.stat-value.accent { color: var(--sky); }
.stat-label { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ---------- Sections shared ---------- */
.section-eyebrow {
  color: var(--sky-deep); font-weight: 800; letter-spacing: 2px;
  text-transform: uppercase; font-size: 13px; margin-bottom: 12px;
}
.section-title { font-size: clamp(30px, 5vw, 46px); font-weight: 800; letter-spacing: -1px; color: var(--navy); }
.section-sub { color: var(--muted); font-size: 17px; margin-top: 12px; max-width: 640px; }

.catalog, .how, .contacts { padding: 88px 0; }
.how { background: var(--tint); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---------- Catalog ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.cat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; transition: transform .15s, box-shadow .15s, border-color .15s;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(47,158,230,.16); border-color: var(--sky); }
.cat-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 8px; color: var(--navy); }
.cat-card p { color: var(--muted); font-size: 15px; }
.cat-card-excluded { background: var(--tint); border-color: var(--sky-soft); }
.cat-card-excluded:hover { border-color: var(--sky-soft); box-shadow: 0 16px 34px rgba(47,158,230,.12); }
.cat-card-excluded h3 .strike { color: var(--sky-deep); text-decoration: line-through; text-decoration-color: var(--sky); text-decoration-thickness: 3px; }

/* ---------- Services ---------- */
.services { padding: 88px 0; border-top: 1px solid var(--line); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.service-card {
  background: var(--tint-2); border: 1px solid var(--line); border-left: 4px solid var(--sky);
  border-radius: var(--radius); padding: 24px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(47,158,230,.16); border-color: var(--sky); }
.service-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 8px; color: var(--navy); }
.service-card p { color: var(--muted); font-size: 15px; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 40px; }
.step { position: relative; padding-top: 8px; }
.step-num {
  display: grid; place-items: center; width: 44px; height: 44px;
  border-radius: 12px; background: var(--sky); color: #fff;
  font-weight: 800; font-size: 20px; margin-bottom: 16px;
  box-shadow: 0 8px 18px rgba(47,158,230,.28);
}
.step h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 15px; }

/* ---------- About ---------- */
.about { background: var(--tint); }
.about-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; padding: 88px 24px; }
.about .section-eyebrow { color: var(--sky-deep); }
.about-text p { color: var(--muted); font-size: 17px; margin-top: 16px; }
.about-card {
  background: linear-gradient(140deg, var(--sky) 0%, var(--sky-deep) 100%);
  color: #fff; border-radius: 20px; padding: 40px 36px; text-align: center;
  box-shadow: 0 20px 50px rgba(10,102,166,.28);
}
.about-card-big { font-size: 72px; font-weight: 800; letter-spacing: -3px; line-height: 1; }
.about-card-line { font-size: 22px; font-weight: 800; margin-top: 6px; }
.about-card-note { font-size: 16px; font-weight: 600; opacity: .85; margin-top: 8px; }

/* ---------- Contacts ---------- */
.contacts-inner { text-align: center; }
.contacts .section-sub { margin-left: auto; margin-right: auto; }
.contact-cards { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-top: 40px; }
.contact-card {
  display: flex; flex-direction: column; gap: 6px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 40px; min-width: 240px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.contact-card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(47,158,230,.16); border-color: var(--sky); }
.contact-label { color: var(--sky-deep); font-size: 14px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 700; }
.contact-value { font-size: 22px; font-weight: 800; color: var(--navy); }
.contact-note { color: var(--muted); margin-top: 26px; font-size: 15px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--tint); color: var(--muted); border-top: 1px solid var(--line); }
.footer-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; padding: 28px 24px; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--navy); }
.footer-meta { margin-left: auto; font-size: 14px; }
.footer-copy { font-size: 14px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .main-nav, .btn-nav { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav.open {
    display: flex; flex-direction: column; position: absolute;
    top: 68px; left: 0; right: 0; background: #fff;
    padding: 16px 24px 24px; gap: 16px; border-bottom: 1px solid var(--line);
  }
  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .hero-stamp { justify-self: start; }
  .stamp { transform: rotate(-3deg); max-width: 100%; }
  .stamp-main { font-size: clamp(28px, 9vw, 58px); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 640px) {
  .cat-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .hero-inner { padding: 64px 24px 52px; }
  .stamp { padding: 24px 26px; }
  .stamp-top, .stamp-bot { font-size: 11px; letter-spacing: 3px; }
  .contact-card { width: 100%; }
}