:root {
  --bg: #f4fbf9;
  --surface: #ffffff;
  --panel: #fafffe;
  --ink: #172523;
  --muted: #60716e;
  --line: #d8e8e4;
  --ice: #dff6f3;
  --teal: #2f9b8f;
  --green: #5fae72;
  --amber: #d89c37;
  --coral: #d86b59;
  --blue: #4a89b8;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(223, 246, 243, .9), rgba(244, 251, 249, .94) 38%, rgba(251, 247, 238, .96)),
    var(--bg);
  line-height: 1.65;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 251, 249, .9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(216, 232, 228, .84);
}
.nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--ink);
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(47, 155, 143, .18);
}
.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 14px;
  font-weight: 700;
}
.hero, .page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 54px 20px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr);
  gap: 28px;
  align-items: center;
}
.eyebrow {
  color: var(--teal);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 13px;
}
h1 {
  margin: 8px 0 14px;
  font-size: clamp(38px, 6vw, 66px);
  line-height: 1.02;
  letter-spacing: 0;
}
h2 { margin: 0 0 14px; font-size: 28px; line-height: 1.18; }
h3 { margin: 26px 0 8px; font-size: 19px; line-height: 1.28; }
p { margin: 0 0 14px; }
.lead {
  color: var(--muted);
  font-size: 18px;
  max-width: 700px;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 800;
  border: 1px solid var(--line);
}
.button.primary { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.button.secondary { background: var(--surface); color: var(--ink); }
.panel {
  background: rgba(250, 255, 254, .82);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 24px 50px rgba(36, 87, 82, .1);
}
.freezer-card {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.freezer-visual {
  width: min(82%, 360px);
  aspect-ratio: .82;
  border-radius: 26px;
  padding: 18px;
  border: 1px solid rgba(74, 137, 184, .24);
  background: linear-gradient(180deg, #ffffff, #e9f8f6);
  box-shadow: inset 0 0 0 8px rgba(223, 246, 243, .72), 0 28px 58px rgba(23, 37, 35, .16);
}
.freezer-top {
  height: 16px;
  width: 46%;
  margin: 0 auto 18px;
  border-radius: 999px;
  background: rgba(74, 137, 184, .16);
}
.freezer-shelf {
  min-height: 54px;
  margin-bottom: 12px;
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid rgba(216, 232, 228, .9);
  background: var(--surface);
}
.freezer-shelf span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}
.freezer-shelf strong {
  color: var(--ink);
  font-size: 15px;
}
.shelf-one { border-left: 5px solid var(--coral); }
.shelf-two { border-left: 5px solid var(--blue); }
.shelf-three { border-left: 5px solid var(--green); }
.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.summary-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}
.summary-item strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}
.summary-item span {
  color: var(--muted);
  font-size: 14px;
}
.doc-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.toc {
  position: sticky;
  top: 76px;
  background: rgba(250, 255, 254, .86);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  font-size: 14px;
}
.toc a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
}
.document {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 30px;
}
.meta {
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 24px;
}
ul {
  margin: 0 0 14px 22px;
  padding: 0;
}
.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 26px 20px;
  text-align: center;
  font-size: 14px;
}
@media (max-width: 800px) {
  .hero-grid, .doc-layout, .summary-grid { grid-template-columns: 1fr; }
  .toc { position: static; }
  .document { padding: 22px; }
  .nav { align-items: flex-start; flex-direction: column; }
}