:root {
  --bg: #0a111b;
  --bg-alt: #0e1825;
  --surface: #121e2d;
  --line: #243449;
  --text: #e8edf3;
  --muted: #a9b6c6;
  --steel: #a7bbd0;
  --steel-bright: #cfdbe8;
  --focus: #ffd166;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--steel-bright); text-underline-offset: 3px; }
a:hover { color: #fff; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--focus);
  color: #0a111b;
  padding: .6rem 1rem;
  font-weight: 700;
  z-index: 100;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

.wrap { width: 100%; max-width: 70rem; margin: 0 auto; padding: 0 1.25rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 17, 27, .94);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .25rem;
  padding-top: .75rem;
  padding-bottom: .75rem;
}
.wordmark {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
}
.wordmark span { color: var(--steel); font-weight: 500; }
.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; }
.nav-list a {
  display: inline-block;
  padding: .35rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: .95rem;
  letter-spacing: .04em;
}
.nav-list a:hover { color: #fff; text-decoration: underline; }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 5rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(rgba(167, 187, 208, .05) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, rgba(167, 187, 208, .05) 1px, transparent 1px) 0 0 / 48px 48px,
    radial-gradient(ellipse at 80% 20%, #162840 0%, var(--bg) 65%);
}
.topo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--steel);
  opacity: .16;
  pointer-events: none;
}
.hero-inner { position: relative; }
.eyebrow {
  margin: 0 0 1rem;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel);
}
h1, h2, h3 { line-height: 1.15; margin: 0; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 7vw, 4rem); max-width: 18ch; }
.lead { max-width: 38rem; margin: 1.5rem 0 2rem; font-size: 1.2rem; color: var(--muted); }

.btn {
  display: inline-block;
  padding: .9rem 1.8rem;
  background: var(--steel-bright);
  color: #0a111b;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: .9rem;
  text-decoration: none;
  border: 1px solid var(--steel-bright);
}
.btn:hover { background: #fff; color: #0a111b; }

/* Sections */
.section { padding: 4rem 0; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font-size: clamp(1.6rem, 4.5vw, 2.4rem); max-width: 22ch; }
.two-col { display: grid; gap: 2rem; }
.prose p { margin: 0 0 1.1rem; max-width: 40rem; color: var(--muted); }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--text); }
.contact-line { font-size: 1.3rem; }
.mail { font-weight: 700; word-break: break-all; }

/* Cards */
.cards { list-style: none; margin: 2.5rem 0 0; padding: 0; display: grid; gap: 1.25rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  padding: 1.75rem 1.5rem;
}
.card-num { display: block; font-size: .85rem; letter-spacing: .2em; color: var(--steel); margin-bottom: 1rem; font-variant-numeric: tabular-nums; }
.card h3 { font-size: 1.3rem; margin-bottom: .75rem; }
.card p { margin: 0; color: var(--muted); }

/* Steps */
.steps { list-style: none; counter-reset: step; margin: 2.5rem 0 0; padding: 0; display: grid; gap: 0; }
.steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 2rem 3.5rem;
  border-left: 1px solid var(--line);
  margin-left: 1.1rem;
}
.steps li:last-child { padding-bottom: 0; border-left-color: transparent; }
.steps li::before {
  content: counter(step);
  position: absolute;
  left: -1.1rem;
  top: -.15rem;
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  background: var(--bg);
  border: 1px solid var(--steel);
  color: var(--steel-bright);
  font-weight: 700;
  font-size: .95rem;
}
.steps h3 { font-size: 1.15rem; margin-bottom: .4rem; }
.steps p { margin: 0; color: var(--muted); max-width: 36rem; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); font-size: .95rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; }
.footer-inner p { margin: 0; }

/* Larger screens */
@media (min-width: 48rem) {
  .wrap { padding: 0 2rem; }
  .header-inner { flex-direction: row; align-items: center; justify-content: space-between; }
  .nav-list { gap: .25rem 2rem; }
  .hero { padding: 7rem 0 8rem; }
  .section { padding: 6rem 0; }
  .two-col { grid-template-columns: 5fr 7fr; gap: 4rem; }
  .cards { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
  .steps { grid-template-columns: repeat(5, 1fr); gap: 1.25rem; }
  .steps li { padding: 3.25rem 0 0; border-left: 0; margin-left: 0; border-top: 1px solid var(--line); }
  .steps li:last-child { border-top-color: var(--line); padding-bottom: 0; }
  .steps li::before { left: 0; top: -1.1rem; }
}