:root {
  --navy: #0B1F33;
  --navy-2: #12304D;
  --cyan: #14B8C8;
  --cyan-soft: #E3F7F9;
  --ink: #0F172A;
  --muted: #5B6B7D;
  --line: #E2E8F0;
  --bg: #FFFFFF;
  --bg-alt: #F5F8FB;
  --radius: 14px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); }

/* Top bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand img { height: 29px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; font-size: 15px; font-weight: 500; }
.nav a { text-decoration: none; color: var(--muted); transition: color .15s; }
.nav a:hover { color: var(--ink); }
.nav .nav__cta {
  color: var(--navy); border: 1.5px solid var(--navy);
  padding: 7px 16px; border-radius: 8px;
}
.nav .nav__cta:hover { background: var(--navy); color: #fff; }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  color: #fff;
  background:
    radial-gradient(900px 480px at 85% 10%, rgba(20, 184, 200, 0.22), transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, #081726 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 95%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 95%);
}
.hero__inner { position: relative; padding-top: 112px; padding-bottom: 96px; }
.hero h1 { font-size: clamp(34px, 5.2vw, 60px); font-weight: 700; max-width: 860px; }
.lead { margin-top: 24px; max-width: 640px; font-size: 19px; color: rgba(255, 255, 255, 0.76); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.hero__facts {
  display: flex; flex-wrap: wrap; gap: 12px 40px;
  list-style: none; padding: 32px 0 0; margin: 64px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-weight: 500; color: rgba(255, 255, 255, 0.88);
}
.hero__facts .mono { color: var(--cyan); margin-right: 8px; font-size: 14px; }

.eyebrow {
  font-family: var(--mono); font-size: 13px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--cyan); margin-bottom: 18px;
}
.eyebrow::before { content: "// "; opacity: .7; }
.eyebrow--dark { color: #0E8F9C; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 50px; padding: 0 26px; border-radius: 10px;
  font-weight: 600; font-size: 16px; text-decoration: none;
  transition: background .15s, border-color .15s, transform .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--cyan); color: var(--navy); }
.btn--primary:hover { background: #2BCAD9; }
.btn--ghost { border: 1.5px solid rgba(255, 255, 255, 0.3); color: #fff; }
.btn--ghost:hover { border-color: #fff; }

/* Sections */
.section { padding: 104px 0; }
.section--alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section__head { margin-bottom: 52px; }
.section h2 { font-size: clamp(28px, 3.6vw, 40px); }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card {
  padding: 32px; border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; transition: border-color .2s, box-shadow .2s, transform .2s;
}
.card:hover { border-color: #BDE9EE; box-shadow: 0 12px 32px -16px rgba(11, 31, 51, 0.25); transform: translateY(-2px); }
.card__icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--navy); margin-bottom: 22px;
}
.card__icon svg { width: 24px; height: 24px; fill: none; stroke: var(--cyan); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 21px; margin-bottom: 10px; }
.card p { color: var(--muted); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.step { position: relative; padding-top: 28px; border-top: 2px solid var(--navy); }
.step::before {
  content: ""; position: absolute; top: -6px; left: 0;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 0 4px var(--bg-alt);
}
.step__num { display: block; font-size: 14px; color: #0E8F9C; margin-bottom: 10px; }
.step h3 { font-size: 20px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 16px; }

/* Contacts */
.contacts { background: var(--navy); color: #fff; }
.contacts__inner { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; }
.contacts__lead { margin-top: 18px; color: rgba(255, 255, 255, 0.72); }
.contacts__list {
  margin: 0; display: grid; grid-template-columns: repeat(2, 1fr);
  border: 1px solid rgba(255, 255, 255, 0.12); border-radius: var(--radius); overflow: hidden;
}
.contacts__item { padding: 26px 28px; background: var(--navy-2); }
.contacts__item:first-child { grid-column: 1 / -1; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.contacts__item:nth-child(2) { border-right: 1px solid rgba(255, 255, 255, 0.08); }
.contacts__item dt {
  font-family: var(--mono); font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--cyan); margin-bottom: 8px;
}
.contacts__item dd { margin: 0; font-size: 17px; font-weight: 500; overflow-wrap: anywhere; }
.contacts__item a { text-decoration: none; border-bottom: 1px solid rgba(20, 184, 200, 0.5); }
.contacts__item a:hover { color: var(--cyan); }

/* Footer */
.footer { background: #071523; color: rgba(255, 255, 255, 0.55); font-size: 14px; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 32px; padding-bottom: 32px; }
.footer img { height: 24px; width: auto; }

/* Responsive */
@media (max-width: 900px) {
  .steps { grid-template-columns: repeat(2, 1fr); gap: 40px 32px; }
  .contacts__inner { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav a:not(.nav__cta) { display: none; }
  .brand img { height: 24px; }
  .hero__inner { padding-top: 72px; padding-bottom: 64px; }
  .lead { font-size: 17px; }
  .section { padding: 72px 0; }
  .grid, .steps { grid-template-columns: 1fr; }
  .card { padding: 26px; }
  .contacts__list { grid-template-columns: 1fr; }
  .contacts__item:nth-child(2) { border-right: 0; }
  .contacts__item:not(:last-child) { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}
.hero--full { min-height: 100vh; }