:root {
  --ink: #17211c;
  --muted: #5d6b63;
  --line: #dbe3dc;
  --paper: #fbfbf7;
  --soft: #eef3ee;
  --accent: #0f766e;
  --accent-dark: #0b514c;
  --warm: #b86b39;
  --white: #fff;
  --radius: 8px;
  --shadow: 0 18px 48px rgba(23, 33, 28, .14);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .2em; }
img { display: block; max-width: 100%; height: auto; object-fit: cover; }
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 20;
  background: var(--ink);
  color: var(--white);
  padding: .7rem 1rem;
  transform: translateY(-140%);
}
.skip-link:focus { transform: translateY(0); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 15;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  padding: .85rem clamp(1rem, 4vw, 3.5rem);
  background: rgba(251, 251, 247, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-weight: 800;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--white);
  font-size: .9rem;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 650;
}
.site-nav a { text-decoration: none; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .85rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 20px rgba(15, 118, 110, .18);
}
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn-ghost {
  background: rgba(255, 255, 255, .9);
  color: var(--ink);
  border-color: rgba(255,255,255,.88);
}
.btn-small {
  min-height: 40px;
  padding: .6rem .9rem;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}
section, .article {
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 4vw, 3.5rem);
}
.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--ink);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 24, 20, .86), rgba(9, 24, 20, .35) 48%, rgba(9, 24, 20, .08));
}
.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 780px;
  padding: clamp(2rem, 7vw, 5rem) clamp(1rem, 4vw, 3.5rem);
  color: var(--white);
}
.hero-copy h1, .page-hero h1 {
  margin: .25rem 0 1rem;
  font-size: clamp(2.25rem, 5vw, 5rem);
  line-height: 1.02;
  letter-spacing: 0;
}
.hero-copy p { max-width: 680px; font-size: clamp(1.05rem, 1.6vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.eyebrow {
  margin: 0 0 .5rem;
  color: var(--warm);
  font-weight: 850;
  text-transform: uppercase;
  font-size: .78rem;
  letter-spacing: .08em;
}
.section-head {
  max-width: 820px;
  margin: 0 auto 2rem;
  text-align: center;
}
.section-head h2 {
  margin: 0 0 .7rem;
  font-size: clamp(1.75rem, 3vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: 0;
}
.section-head p { color: var(--muted); margin: 0 auto; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  max-width: 1180px;
  margin: 0 auto;
}
.card {
  min-height: 190px;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}
.card h3 { margin: 0 0 .45rem; font-size: 1.12rem; }
.card p { margin: 0 0 1rem; color: var(--muted); }
.card a { font-weight: 800; color: var(--accent-dark); }
.split, .page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr);
  align-items: center;
  gap: clamp(1.4rem, 4vw, 4rem);
  background: var(--soft);
}
.split.reverse { grid-template-columns: minmax(300px, .9fr) minmax(0, 1.1fr); }
.split.reverse img { order: 2; }
.split img, .page-hero img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.security-scenario {
  display: grid;
  grid-template-columns: minmax(280px, .55fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(1.4rem, 4vw, 3rem);
  background: var(--ink);
  color: var(--white);
}
.security-copy {
  max-width: 560px;
}
.security-copy h2 {
  margin: .25rem 0 1rem;
  font-size: clamp(2rem, 3.6vw, 4rem);
  line-height: 1.05;
  letter-spacing: 0;
}
.security-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, .78);
  font-size: 1.08rem;
}
.security-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 845;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .32);
  background: #101713;
}
.page-hero {
  padding-top: clamp(3rem, 7vw, 5rem);
  background: linear-gradient(180deg, var(--soft), var(--paper));
}
.page-hero p { color: var(--muted); max-width: 680px; font-size: 1.08rem; }
.product-support { background: var(--white); }
.product-row {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.product-row img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: 1rem;
  background: #f4f6f5;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 3.5rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius);
  color: var(--white);
  background: var(--ink);
}
.cta-band h2 { margin: 0 0 .5rem; font-size: clamp(1.55rem, 2.6vw, 2.7rem); line-height: 1.1; }
.cta-band p { margin: 0; color: rgba(255,255,255,.78); max-width: 720px; }
.article {
  max-width: 920px;
  margin: 0 auto;
}
.article .section-head { text-align: left; margin-left: 0; }
.article h1 {
  margin: .25rem 0 1rem;
  font-size: clamp(2.05rem, 4vw, 3.8rem);
  line-height: 1.06;
  letter-spacing: 0;
}
.article header > p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.08rem;
}
.article > img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  margin: 1.5rem 0 2rem;
}
.article h2 { font-size: 1.55rem; margin-top: 2rem; }
.article p { color: var(--muted); }
.footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem clamp(1rem, 4vw, 3.5rem) 5rem;
  background: var(--ink);
  color: var(--white);
}
.footer p { color: rgba(255,255,255,.7); max-width: 440px; }
.footer a { display: block; color: var(--white); margin-bottom: .5rem; }
.float-wa {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 14;
  min-height: 46px;
  padding: .75rem 1rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
  font-weight: 850;
  box-shadow: var(--shadow);
}
body.menu-open { overflow: hidden; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: .8rem; }
  .card-grid, .product-row, .split, .split.reverse, .page-hero {
    grid-template-columns: 1fr;
  }
  .security-scenario {
    grid-template-columns: 1fr;
  }
  .split.reverse img { order: 0; }
  .hero { min-height: 760px; }
  .hero::after { background: linear-gradient(180deg, rgba(9, 24, 20, .28), rgba(9, 24, 20, .9)); }
  .hero-copy { align-self: end; }
  .cta-band, .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .brand span:last-child { max-width: 150px; }
  .hero { min-height: 720px; }
  .hero-img { object-position: 58% center; }
  .hero-copy h1, .page-hero h1 { font-size: 2.15rem; }
  .security-copy h2 { font-size: 2rem; }
  .card-grid { gap: .8rem; }
  .card { min-height: 0; }
  .float-wa { display: none; }
}