:root {
  --bg: #f8fafc;
  --bg-elevated: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --accent: #0d9488;
  --accent-dark: #0f766e;
  --accent-soft: #ccfbf1;
  --line: #e2e8f0;
  --hero: linear-gradient(135deg, #0f172a 0%, #134e4a 55%, #0d9488 100%);
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 8px 24px rgba(15, 23, 42, 0.06);
  --radius: 14px;
  --max: 46rem;
  --max-wide: 68rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-dark); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
.wrap-wide { width: min(100% - 2rem, var(--max-wide)); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.logo strong {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.logo span {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  font-size: 0.92rem;
  font-weight: 500;
}

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

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

/* Hero (home) */
.hero {
  background: var(--hero);
  color: #f8fafc;
  padding: 4.5rem 0 4rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 18ch;
}

.hero .lead {
  margin: 0 0 1.75rem;
  font-size: 1.12rem;
  color: #cbd5e1;
  max-width: 42ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: #ffffff;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.btn-primary:hover { color: var(--ink); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-ghost:hover { color: #fff; background: rgba(255, 255, 255, 0.16); }

/* Sections */
section { padding: 3rem 0; }

.section-title {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.section-sub {
  margin: 0 0 1.75rem;
  color: var(--muted);
  max-width: 50ch;
}

/* Cards */
.grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  color: var(--accent-dark);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card-link:hover {
  border-color: #99f6e4;
  transform: translateY(-2px);
}

.card-link strong {
  display: block;
  color: var(--accent-dark);
  margin-bottom: 0.25rem;
}

.product-card {
  display: grid;
  gap: 1rem;
  align-items: start;
}

@media (min-width: 720px) {
  .product-card { grid-template-columns: 1fr auto; }
}

.pill {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--accent-soft);
  color: var(--accent-dark);
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
}

/* Prose (legal / docs) */
main.prose { padding: 2.5rem 0 3.5rem; }

.prose h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.15rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.prose .meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
}

.prose h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.65rem;
  color: var(--ink);
}

.prose h3 { font-size: 1rem; margin: 1.5rem 0 0.5rem; }

.prose p, .prose li { color: #334155; }

.prose ul, .prose ol { padding-left: 1.25rem; }

.prose li { margin: 0.35rem 0; }

.prose code {
  background: #f1f5f9;
  padding: 0.12rem 0.4rem;
  border-radius: 5px;
  font-size: 0.9em;
}

.note {
  background: #f0fdfa;
  border: 1px solid #99f6e4;
  border-radius: 10px;
  padding: 0.9rem 1rem;
  color: #115e59;
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

.footer-grid h4 {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.footer-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-grid li { margin: 0.35rem 0; }

.footer-grid a { color: var(--muted); text-decoration: none; }
.footer-grid a:hover { color: var(--accent-dark); }

.footer-bottom {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: space-between;
}