/* Creston Labs — corporate site */

:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #1f2a24;
  --ink-soft: #4c5a52;
  --ink-faint: #74827a;
  --accent: #2e6b4f;
  --accent-dark: #22503b;
  --accent-tint: #eaf2ed;
  --border: #e3e2dc;
  --max: 1100px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 20px;
  padding-bottom: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.logo:hover {
  text-decoration: none;
  color: var(--ink);
}

.logo svg {
  display: block;
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent);
}

/* ---------- Hero ---------- */

.hero {
  padding: 96px 0 88px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 18ch;
  margin: 0 auto 20px;
}

.hero .tagline {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 auto 32px;
}

.hero .kicker {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-tint);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
  transition: background 0.15s ease;
}

.btn:hover {
  background: var(--accent-dark);
  color: #fff;
  text-decoration: none;
}

/* ---------- Sections ---------- */

.section {
  padding: 72px 0;
}

.section.alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 750;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}

.section .lede {
  color: var(--ink-soft);
  max-width: 62ch;
  margin-bottom: 40px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
}

.section.alt .card {
  background: var(--bg);
}

.card .card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--ink-soft);
  font-size: 0.97rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-grid p + p {
  margin-top: 16px;
}

.fact-list {
  list-style: none;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 8px 0;
}

.section.alt .fact-list {
  background: var(--bg);
}

.fact-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  font-size: 0.95rem;
}

.fact-list li + li {
  border-top: 1px solid var(--border);
}

.fact-list .k {
  color: var(--ink-faint);
  flex-shrink: 0;
}

.fact-list .v {
  font-weight: 600;
  text-align: right;
}

/* ---------- Contact ---------- */

.contact-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-box h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}

.contact-box p {
  color: var(--ink-soft);
  font-size: 0.97rem;
}

address {
  font-style: normal;
  color: var(--ink-soft);
  font-size: 0.97rem;
}

/* ---------- Legal pages ---------- */

.legal {
  padding: 64px 0 80px;
}

.legal .page-header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.legal h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.legal .updated {
  color: var(--ink-faint);
  font-size: 0.9rem;
}

.legal article {
  max-width: 72ch;
}

.legal h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 40px 0 12px;
  letter-spacing: -0.01em;
}

.legal h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 24px 0 8px;
}

.legal p {
  margin-bottom: 14px;
  color: var(--ink-soft);
}

.legal ul,
.legal ol {
  margin: 0 0 14px 24px;
  color: var(--ink-soft);
}

.legal li {
  margin-bottom: 6px;
}

.legal strong {
  color: var(--ink);
}

.notice {
  background: var(--accent-tint);
  border: 1px solid #d3e4da;
  border-radius: 10px;
  padding: 16px 20px;
  margin: 20px 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 40px 0;
  margin-top: 0;
}

.site-footer .wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-legal {
  color: var(--ink-faint);
  font-size: 0.88rem;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.footer-links a {
  color: var(--ink-soft);
}

.footer-links a:hover {
  color: var(--accent);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 64px 0 56px;
  }

  .section {
    padding: 52px 0;
  }
}