:root {
  --bg: #fafaf9;
  --bg-elevated: #ffffff;
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --line-soft: #f1f5f9;
  --accent: #0f766e;
  --accent-ink: #134e4a;
  --accent-soft: #ccfbf1;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --max: 1100px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  text-decoration: underline;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

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

.site-header {
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(10px);
  background: rgba(250, 250, 249, 0.85);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}

.logo:hover {
  text-decoration: none;
}

.logo-text {
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 1.05rem;
}

.nav-links {
  display: flex;
  gap: 28px;
}

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

.nav-links a:hover {
  color: var(--accent-ink);
  text-decoration: none;
}

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

.hero {
  padding: 96px 0 80px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elevated) 100%);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-ink);
  margin-bottom: 1rem;
}

.lede {
  font-size: clamp(1.05rem, 1.3vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

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

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: var(--ink-soft);
}

/* ---------- Section common ---------- */

section {
  padding: 80px 0;
}

.section-lede {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 3rem;
}

/* ---------- Products ---------- */

.products {
  background: var(--bg-elevated);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.18s ease;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.product-header {
  margin-bottom: 1rem;
}

.product-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.product-blurb {
  color: var(--ink-soft);
  margin-bottom: 1.25rem;
}

.product-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  flex-grow: 1;
}

.product-features li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.product-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--accent-ink);
  font-size: 0.95rem;
  margin-top: auto;
}

.product-link:hover {
  gap: 9px;
  text-decoration: none;
}

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px 48px;
  margin-top: 2rem;
}

.about-grid h3 {
  margin-bottom: 0.75rem;
  color: var(--ink);
  font-size: 1.1rem;
}

.about-grid p {
  font-size: 0.97rem;
  margin: 0;
}

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

.contact {
  background: var(--bg-elevated);
  border-top: 1px solid var(--line-soft);
  text-align: center;
}

.contact h2 {
  margin-bottom: 1rem;
}

.contact-email {
  display: inline-block;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--accent-ink);
  padding: 14px 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  transition: all 0.15s ease;
}

.contact-email:hover {
  border-color: var(--accent);
  text-decoration: none;
}

.contact-phone {
  margin-top: 1.25rem;
  font-size: 1rem;
  color: var(--muted);
}

.contact-phone a {
  color: var(--ink-soft);
  font-weight: 500;
}

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

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

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--ink);
}

.footer-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-meta p {
  margin: 0 0 6px;
  color: var(--muted);
}

.footer-meta a {
  color: var(--muted);
}

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

@media (max-width: 640px) {
  .nav-links {
    gap: 16px;
  }

  .nav-links a {
    font-size: 0.85rem;
  }

  .hero {
    padding: 64px 0 48px;
  }

  section {
    padding: 56px 0;
  }

  .product-card {
    padding: 24px;
  }
}