:root {
  --navy: #0a3a8c;
  --navy-dark: #061f4d;
  --cyan: #00b4f0;
  --ink: #1b2433;
  --muted: #5a6475;
  --line: #dfe5ee;
  --bg: #ffffff;
  --bg-soft: #f3f6fb;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header { background: var(--navy-dark); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand img { height: 36px; width: auto; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { color: #fff; text-decoration: none; padding: 8px 12px; border-radius: 8px; font-weight: 600; font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { background: rgba(255,255,255,.12); }
.nav a.cta { background: var(--cyan); color: var(--navy-dark); }

/* Hero */
.hero {
  background: radial-gradient(circle at 75% 30%, var(--cyan) 0%, #0a5fd6 35%, var(--navy) 65%, var(--navy-dark) 100%);
  color: #fff; padding: 72px 0 64px;
}
.hero h1 { font-size: clamp(30px, 5vw, 52px); line-height: 1.15; margin: 0 0 16px; max-width: 760px; }
.hero p { font-size: clamp(16px, 2vw, 19px); max-width: 640px; margin: 0 0 28px; opacity: .92; }
.page-hero { padding: 48px 0 40px; }
.page-hero h1 { font-size: clamp(28px, 4vw, 40px); }

.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 700; text-decoration: none; margin: 0 8px 8px 0; }
.btn-primary { background: var(--cyan); color: var(--navy-dark); }
.btn-ghost { border: 2px solid #fff; color: #fff; }
.btn-navy { background: var(--navy); color: #fff; }
.btn-outline { border: 2px solid var(--navy); color: var(--navy); }
.btn:hover { filter: brightness(1.08); }

/* Sections */
section { padding: 56px 0; }
section.soft { background: var(--bg-soft); }
h2 { font-size: clamp(24px, 3.2vw, 32px); color: var(--navy); margin: 0 0 8px; }
.lead { color: var(--muted); margin: 0 0 32px; max-width: 720px; }

.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 0 0 8px; color: var(--navy); font-size: 19px; }
.card p { margin: 0; color: var(--muted); }
.icon { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, var(--cyan), var(--navy)); color: #fff; display: grid; place-items: center; font-weight: 800; margin-bottom: 14px; }

/* Product cards */
.product { display: flex; flex-direction: column; }
.product .photo { background: var(--bg-soft); border-radius: 8px; padding: 12px; margin-bottom: 16px; }
.product .tag { font-size: 13px; font-weight: 700; color: var(--cyan); text-transform: uppercase; letter-spacing: .04em; }
.product ul { padding-left: 18px; margin: 8px 0 16px; color: var(--muted); }
.product .actions { margin-top: auto; padding-top: 8px; }
.btn-sm { padding: 6px 14px; font-size: 14px; margin: 0; white-space: nowrap; }

/* Catalog detail */
.model { padding: 40px 0; border-top: 1px solid var(--line); }
.model:first-of-type { border-top: 0; }
.model-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.model-head h2 { margin: 0; }
.model-head .tagline { margin: 0; color: var(--muted); font-weight: 600; }
.model .photo { background: var(--bg-soft); border-radius: var(--radius); padding: 16px; margin-bottom: 24px; }
.cols { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.specs { width: 100%; border-collapse: collapse; font-size: 15px; }
.specs th, .specs td { text-align: left; padding: 8px 4px; border-bottom: 1px solid var(--line); vertical-align: top; }
.specs th { color: var(--navy); width: 42%; font-weight: 700; }
.uses { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 0; padding: 0; list-style: none; }
.uses li { background: #e6f7fe; color: var(--navy); border-radius: 999px; padding: 4px 12px; font-size: 14px; font-weight: 600; }
.table-scroll { overflow-x: auto; }
.compare { width: 100%; border-collapse: collapse; min-width: 560px; background: #fff; }
.compare th, .compare td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.compare thead th { background: var(--navy); color: #fff; }

.callout { background: linear-gradient(135deg, var(--navy), #0a5fd6); color: #fff; border-radius: var(--radius); padding: 28px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.callout h3 { margin: 0 0 4px; font-size: 22px; }
.callout p { margin: 0; opacity: .9; }

/* Contact */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-list strong { display: block; color: var(--navy); }
.map { width: 100%; min-height: 320px; border: 0; border-radius: var(--radius); }

/* Footer */
.site-footer { background: var(--navy-dark); color: #c9d4e6; padding: 40px 0 24px; font-size: 14px; }
.site-footer a { color: #fff; }
.site-footer .cols { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.site-footer img { height: 32px; width: auto; margin-bottom: 8px; }
.site-footer .copy { border-top: 1px solid rgba(255,255,255,.15); margin-top: 24px; padding-top: 16px; }

.wa-float { position: fixed; right: 16px; bottom: 16px; background: #25d366; color: #fff; font-weight: 700; text-decoration: none; padding: 12px 18px; border-radius: 999px; box-shadow: 0 6px 18px rgba(0,0,0,.2); z-index: 20; }