:root {
  --brand: #0a66c2;
  --brand-dark: #074e96;
  --brand-soft: #e8f1fb;
  --ink: #0f1b2d;
  --ink-soft: #4a5a72;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f6f9fc;
  --radius: 10px;
  --max: 1100px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.95);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  background: var(--brand); color: #fff;
  border-radius: 8px; font-weight: 700; letter-spacing: 0.5px;
}
.brand-name { font-weight: 600; font-size: 1.05rem; }
.header-nav a {
  color: var(--ink-soft); text-decoration: none; margin-left: 28px;
  font-weight: 500; font-size: 0.95rem;
}
.header-nav a:hover { color: var(--brand); }

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--brand-soft) 0%, #ffffff 100%);
  padding: 96px 0 80px;
}
.hero-inner { text-align: center; max-width: 760px; margin: 0 auto; }
.eyebrow {
  text-transform: uppercase; letter-spacing: 2px; font-size: 0.78rem;
  color: var(--brand); font-weight: 600; margin: 0 0 16px;
}
h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15; margin: 0 0 20px; font-weight: 700; letter-spacing: -0.02em;
}
.lede { font-size: 1.15rem; color: var(--ink-soft); margin: 0 0 24px; }
.status {
  display: inline-block; padding: 6px 14px;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  font-size: 0.9rem; color: var(--ink-soft); margin: 0 0 32px;
}

/* CTAs */
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 24px; border-radius: var(--radius);
  font-weight: 600; text-decoration: none; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; transition: all 0.15s;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { background: transparent; color: var(--brand); border-color: var(--brand); }
.btn-ghost:hover { background: var(--brand-soft); }

/* Features */
.features { padding: 80px 0; background: var(--bg); }
.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}
.feature {
  padding: 32px 24px; background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.feature-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--brand); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 16px;
}
.feature h3 { margin: 0 0 8px; font-size: 1.15rem; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 0.96rem; }

/* Products */
.products { padding: 80px 0; background: var(--bg-soft); border-top: 1px solid var(--line); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head h2 { font-size: 2rem; margin: 0 0 16px; letter-spacing: -0.01em; }
.section-lede { color: var(--ink-soft); font-size: 1.02rem; margin: 0; }
.sample-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px; margin-bottom: 56px;
}
.sample-card {
  margin: 0; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s;
}
.sample-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10, 102, 194, 0.08);
}
.sample-img {
  aspect-ratio: 4 / 3; background: var(--bg-soft);
  display: flex; align-items: center; justify-content: center;
  padding: 16px; border-bottom: 1px solid var(--line);
}
.sample-img img {
  max-width: 100%; max-height: 100%; object-fit: contain;
}
.sample-card figcaption { padding: 16px 18px 18px; }
.sample-card h4 { margin: 0 0 6px; font-size: 0.98rem; font-weight: 600; color: var(--ink); }
.sample-card figcaption p {
  margin: 0 0 12px; font-size: 0.86rem; color: var(--ink-soft); line-height: 1.45;
}
.sample-tag {
  display: inline-block; padding: 3px 10px;
  background: var(--brand-soft); color: var(--brand-dark);
  border-radius: 999px; font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.3px; text-transform: uppercase;
}
.category-heading {
  text-align: center; font-size: 1.25rem; font-weight: 600;
  margin: 0 0 28px; color: var(--ink);
}

.product-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.product-card {
  padding: 28px 24px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
}
.product-card h3 {
  margin: 0 0 14px; font-size: 1.08rem; color: var(--brand-dark);
  padding-bottom: 12px; border-bottom: 1px solid var(--line);
}
.product-card ul { margin: 0; padding: 0; list-style: none; }
.product-card li {
  color: var(--ink-soft); font-size: 0.94rem;
  padding: 6px 0 6px 20px; position: relative;
}
.product-card li::before {
  content: ""; position: absolute; left: 0; top: 14px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--brand);
}
.products-note {
  margin: 40px auto 0; max-width: 720px; text-align: center;
  color: var(--ink-soft); font-size: 0.88rem; font-style: italic;
}

/* Contact */
.contact { padding: 80px 0; background: var(--bg-soft); border-top: 1px solid var(--line); }
.contact-inner { text-align: center; max-width: 560px; margin: 0 auto; }
.contact h2 { font-size: 1.8rem; margin: 0 0 12px; }
.contact p { color: var(--ink-soft); margin: 0 0 24px; }
.signup {
  display: flex; gap: 8px; max-width: 440px; margin: 0 auto;
}
.signup input {
  flex: 1; padding: 13px 16px; font-size: 0.95rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; background: #fff;
}
.signup input:focus { outline: 2px solid var(--brand); border-color: transparent; }
.thanks { color: var(--brand); font-weight: 600; margin-top: 16px; }
.contact-direct { margin-top: 24px; font-size: 0.9rem; }
.contact-direct a { color: var(--brand); }

/* Footer */
.site-footer { padding: 32px 0; border-top: 1px solid var(--line); background: #fff; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.88rem; color: var(--ink-soft); flex-wrap: wrap; gap: 8px;
}
.footer-inner p { margin: 0; }
.muted { color: var(--ink-soft); }

@media (max-width: 600px) {
  .hero { padding: 64px 0 48px; }
  .features, .products, .contact { padding: 56px 0; }
  .signup { flex-direction: column; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 1.6rem; }
}