:root {
  --ink: #101c1e;
  --paper: #f4f7f6;
  --card: #ffffff;
  --muted: #647672;
  --line: #dfe8e5;
  --teal: #0b7e75;
  --teal-dark: #102a29;
  --mint: #dff3ed;
  --orange: #d78343;
  --mono: ui-monospace, "Cascadia Mono", "Liberation Mono", monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", "Liberation Sans", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
em { font-style: normal; color: var(--teal); }
code { font: 0.9em var(--mono); background: #e8f0ed; padding: 2px 5px; border-radius: 4px; }

.site {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  border-bottom: 1px solid var(--line);
}
.brand {
  text-decoration: none;
  font: 700 15px var(--mono);
  letter-spacing: 4px;
}
.brand span { color: var(--teal); }
nav { display: flex; gap: 28px; font-size: 14px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--teal); }

main { max-width: 1220px; margin: 0 auto; padding: 0 32px; }

.hero { padding: 96px 0 72px; max-width: 940px; }
.eyebrow, .kicker {
  font: 600 11px var(--mono);
  letter-spacing: 2px;
  color: var(--teal);
}
h1 { font-size: clamp(44px, 7vw, 82px); line-height: 1.02; letter-spacing: -3px; margin: 18px 0 24px; font-weight: 750; }
.lede { font-size: 19px; line-height: 1.6; color: #425450; max-width: 760px; margin: 0 0 34px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  text-decoration: none;
  border: 1px solid #cfded9;
  background: #fff;
  color: #21413c;
  border-radius: 8px;
  padding: 12px 20px;
  font-weight: 600;
  font-size: 14px;
  transition: 0.15s;
}
.btn:hover { border-color: #8eb9ae; transform: translateY(-1px); }
.btn.primary { background: var(--teal-dark); color: #eafaf5; border-color: var(--teal-dark); }
.btn.primary:hover { background: #17413d; }
.small { font-size: 13px; color: var(--muted); margin-top: 18px; }

.tools { display: grid; gap: 34px; padding: 10px 0 80px; }
.product {
  display: grid;
  grid-template-columns: minmax(260px, 430px) 1fr;
  gap: 54px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 36px;
  box-shadow: 0 18px 50px #1b37330a;
}
.product img { border-radius: 12px; box-shadow: 0 10px 30px #102a291f; }
.product h2 { font-size: 40px; letter-spacing: -1.6px; margin: 10px 0 4px; }
.tagline { font-size: 18px; color: var(--teal); font-weight: 600; margin: 0 0 14px; }
.product p { color: #465a56; margin: 0 0 16px; }
.checks { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 8px; }
.checks li { position: relative; padding-left: 24px; font-size: 14px; color: #334743; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 700; }
.links { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.text { color: var(--teal); font-size: 13px; font-weight: 600; text-decoration: none; }
.text:hover { text-decoration: underline; }

.problems { padding: 70px 0; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head h2 { font-size: clamp(30px, 4vw, 46px); letter-spacing: -1.5px; margin: 10px 0 12px; }
.section-head p { color: var(--muted); margin: 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  display: block;
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  transition: 0.16s;
}
.card:hover { border-color: #98c4b8; transform: translateY(-2px); box-shadow: 0 12px 28px #17332d10; }
.tag { font: 600 9px var(--mono); letter-spacing: 1.4px; color: var(--teal); }
.card h3 { font-size: 17px; line-height: 1.35; margin: 10px 0 8px; letter-spacing: -0.3px; }
.card p { font-size: 13px; color: var(--muted); margin: 0; }

.about { background: var(--teal-dark); color: #e7f4f0; border-radius: 20px; padding: 54px; margin: 30px 0 80px; }
.about .kicker { color: #78d6c1; }
.about h2 { font-size: 38px; letter-spacing: -1.5px; margin: 12px 0 16px; }
.about > p { color: #b9d1cc; max-width: 780px; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin: 38px 0 30px; }
.pillars h3 { color: #8ee4d1; font-size: 15px; margin: 0 0 8px; }
.pillars p { color: #a9c5bf; font-size: 13px; margin: 0; }
.disclaimer { font-size: 11px; color: #7fa19b; border-top: 1px solid #24423e; padding-top: 18px; }

footer.site {
  border-top: 1px solid var(--line);
  border-bottom: 0;
  height: auto;
  padding-top: 26px;
  padding-bottom: 40px;
  font-size: 12px;
  color: var(--muted);
  align-items: flex-start;
  gap: 20px;
}
.foot-links { display: flex; gap: 20px; }
.foot-links a { text-decoration: none; }
.foot-links a:hover { color: var(--teal); }

/* product pages */
.product-hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 54px; align-items: center; padding: 72px 0 54px; }
.product-hero h1 { font-size: clamp(40px, 5.4vw, 66px); letter-spacing: -2.5px; }
.product-hero img { border-radius: 14px; box-shadow: 0 20px 50px #102a2926; }
.article { max-width: 820px; padding-bottom: 60px; }
.article h2 { font-size: 30px; letter-spacing: -1px; margin: 46px 0 10px; }
.article h3 { font-size: 18px; margin: 28px 0 6px; }
.article p, .article li { color: #40534f; }
.article li { margin-bottom: 6px; }
.callout { background: var(--mint); border-left: 4px solid var(--teal); padding: 18px 22px; border-radius: 6px; margin: 24px 0; font-size: 14px; }
.shot { margin: 30px 0; }
.shot figcaption { font-size: 12px; color: var(--muted); margin-top: 8px; }
.back { font: 600 12px var(--mono); letter-spacing: 1px; color: var(--teal); text-decoration: none; }
.pager { display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding: 24px 0 50px; font-size: 13px; }
.pager a { color: var(--teal); text-decoration: none; }

@media (max-width: 900px) {
  .grid, .pillars { grid-template-columns: 1fr; }
  .product, .product-hero { grid-template-columns: 1fr; gap: 28px; }
  .product img { max-width: 420px; }
  .about { padding: 34px; }
}
@media (max-width: 620px) {
  .site { padding: 0 18px; height: 66px; }
  nav { gap: 14px; font-size: 12px; }
  nav a:nth-child(2) { display: none; }
  main { padding: 0 18px; }
  .hero { padding: 62px 0 46px; }
  h1 { letter-spacing: -2px; }
  .product { padding: 20px; }
  .product h2 { font-size: 32px; }
  .about { border-radius: 14px; }
}