:root {
  --navy: #002d5a;
  --ink: #1a2332;
  --muted: #6b7280;
  --bg: #fafbfc;
  --surface: #ffffff;
  --line: #e5e8ec;
  --font: 'Golos Text', system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.container {
  width: min(960px, calc(100% - 2.5rem));
  margin-inline: auto;
}
.section { padding: 5.5rem 0; }
.section__title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 2rem;
}
.section__title--large {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  text-transform: none;
  letter-spacing: -0.03em;
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: 3rem;
}
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(10px);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}
.logo img { display: block; height: 2.25rem; width: auto; }
.nav { display: flex; gap: 2.5rem; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav a:hover { color: var(--navy); }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 4.25rem;
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  background: url(../../assets/hero-security.jpg) center/cover no-repeat;
}
.hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(250,251,252,0.55) 0%, rgba(250,251,252,0.88) 70%, var(--bg) 100%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 4rem 0;
}
.hero__logo {
  width: min(220px, 55vw);
  height: auto;
  margin: 0 auto 2rem;
  filter: drop-shadow(0 4px 20px rgba(0,45,90,0.15));
}
.hero__title {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 600;
  color: var(--navy);
  letter-spacing: -0.02em;
  line-height: 1.25;
  max-width: 20ch;
  margin: 0 auto 2.5rem;
}
.hero__cta {
  display: inline-block;
  padding: 1rem 2.25rem;
  background: var(--navy);
  color: var(--surface);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 100px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 45, 90, 0.2);
}

.mosaic {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-rows: 200px 200px;
  gap: 0.75rem;
  width: min(1100px, calc(100% - 2.5rem));
  margin: -2rem auto 0;
  position: relative;
  z-index: 2;
}
.mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.mosaic img:first-child { grid-row: 1 / 3; }

.about__intro {
  font-size: 1.125rem;
  color: var(--ink);
  line-height: 1.8;
  margin-bottom: 4rem;
}
.principles { display: flex; flex-direction: column; gap: 0; }
.principle {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}
.principle:last-child { border-bottom: 1px solid var(--line); }
.principle__num { display: none; }
.principle__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.5rem;
}
.principle__text {
  font-size: 0.975rem;
  color: var(--muted);
  line-height: 1.75;
}
.services__intro {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 3rem;
  line-height: 1.75;
}
.services__stack { display: flex; flex-direction: column; gap: 0; }
.service {
  padding: 2.25rem 0;
  border-top: 1px solid var(--line);
}
.service:last-child { border-bottom: 1px solid var(--line); }
.service__index { display: none; }
.service__title {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 600;
  color: var(--navy);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.service__text {
  font-size: 0.975rem;
  color: var(--muted);
  line-height: 1.75;
  max-width: 60ch;
}
.contacts {
  background: var(--surface);
  border-top: 1px solid var(--line);
}
.contacts__list { display: flex; flex-direction: column; gap: 0; }
.contact-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.contact-row span {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact-row a,
.contact-row p {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--navy);
  text-decoration: none;
  line-height: 1.4;
}
.contact-row a:hover { text-decoration: underline; }
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--muted);
}
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 800px) {
  .nav { display: none; }
  .mosaic {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 140px 140px;
  }
  .mosaic img:first-child { grid-row: auto; grid-column: 1 / -1; height: 180px; }
  .contact-row { grid-template-columns: 1fr; gap: 0.35rem; }
}