:root {
  --bg: #f5f7f8;
  --surface: #ffffff;
  --ink: #101820;
  --muted: #5e6872;
  --line: #dce2e6;
  --accent: #175f58;
  --accent-dark: #104943;
  --soft: #e8f2f0;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; }

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 78px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: var(--accent);
  font-weight: 800;
}
nav { display: flex; gap: 24px; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
nav a:hover { color: var(--ink); }

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 112px 28px 104px;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}
h1, h2, h3 { line-height: 1.1; letter-spacing: -0.035em; }
h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 820;
}
.lede {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 750;
  text-decoration: none;
  border: 1px solid var(--line);
}
.button.primary { background: var(--accent); color: white; border-color: var(--accent); }
.button.primary:hover { background: var(--accent-dark); }
.button.secondary { background: var(--surface); }
.status { margin-top: 22px; color: var(--muted); font-size: 0.92rem; }
.status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  margin-right: 8px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 86px 28px;
  border-top: 1px solid var(--line);
}
.section-heading { max-width: 720px; margin-bottom: 34px; }
h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); }
h3 { margin: 0 0 12px; font-size: 1.2rem; }
.grid { display: grid; }
.cards { grid-template-columns: repeat(4, 1fr); gap: 14px; }
.card {
  padding: 25px;
  min-height: 190px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.card p { margin: 0; color: var(--muted); }
.spec-panel {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--ink);
  color: white;
  border-radius: 12px;
  overflow: hidden;
}
.spec-panel > div { padding: 23px; border-right: 1px solid rgba(255,255,255,.15); }
.spec-panel > div:last-child { border-right: 0; }
.spec-label { display: block; color: #b9c0c5; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 7px; }
.fine-print { color: var(--muted); font-size: .85rem; }

.publication-box {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 34px;
  padding: 32px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.publication-box p { margin: 0 0 10px; }
.publication-box p:last-child { margin-bottom: 0; color: var(--muted); }
.citation strong { font-weight: 750; }
.coming-soon {
  margin-top: 14px;
  padding: 19px 22px;
  border-radius: 10px;
  background: var(--soft);
  display: flex;
  align-items: baseline;
  gap: 18px;
}
.coming-soon span { flex: 0 0 auto; font-weight: 800; color: var(--accent-dark); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
.coming-soon p { margin: 0; }

.contact { padding-bottom: 110px; }
.contact > p:not(.eyebrow):not(.company) { max-width: 660px; color: var(--muted); font-size: 1.05rem; }
.email {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 800;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}
.company { margin-top: 30px; color: var(--muted); font-size: .9rem; }
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .86rem;
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

@media (max-width: 850px) {
  .cards, .spec-panel { grid-template-columns: repeat(2, 1fr); }
  .publication-box { grid-template-columns: 1fr; }
  .publication-box .button { justify-self: start; }
}
@media (max-width: 620px) {
  .site-header { align-items: flex-start; padding-top: 20px; padding-bottom: 20px; }
  nav { display: none; }
  .hero { padding-top: 72px; }
  .cards, .spec-panel { grid-template-columns: 1fr; }
  .spec-panel > div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); }
  .spec-panel > div:last-child { border-bottom: 0; }
  .coming-soon { display: block; }
  .coming-soon span { display: block; margin-bottom: 6px; }
  footer { flex-direction: column; gap: 5px; }
}