:root {
  color-scheme: light;
  --bg: #f4f5f7;
  --panel: #fff;
  --text: #17202d;
  --muted: #556171;
  --line: #c7ced8;
  --accent: #a93d0c;
  --accent-hover: #8e3209;
  --on-accent: #fff;
  --soft: #edf0f4;
  --danger: #b51c30;
}
:root.dark {
  color-scheme: dark;
  --bg: #101317;
  --panel: #191d23;
  --text: #edf0f4;
  --muted: #adb6c3;
  --line: #39414d;
  --accent: #ffad66;
  --accent-hover: #ffbf87;
  --on-accent: #201107;
  --soft: #212730;
  --danger: #ff7780;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
}
a {
  color: var(--accent);
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
  cursor: pointer;
}
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
.page {
  max-width: 1200px;
  margin: auto;
  padding: 0 32px;
}
header {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 20px;
  font-weight: 850;
  text-decoration: none;
  color: var(--text);
}
.brand-mark {
  display: block;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  object-fit: contain;
  border-radius: 10px;
}
.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}
nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
nav a,
nav button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}
nav button {
  border: 1px solid var(--line);
  background: var(--panel);
}
nav a:hover {
  background: var(--soft);
}
.hero {
  padding: 64px 0;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 54px;
}
.eyebrow,
.product-label {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.copy h1 {
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.07;
  margin: 22px 0;
  letter-spacing: -2px;
}
.lead {
  font-size: 19px;
  color: var(--muted);
  line-height: 1.65;
}
.actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}
.actions a,
.secondary {
  min-height: 48px;
  padding: 14px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 750;
  text-align: center;
}
.download {
  background: var(--accent);
  color: var(--on-accent);
}
.download:hover {
  background: var(--accent-hover);
}
.download[aria-disabled="true"] {
  pointer-events: none;
  background: var(--soft);
  color: var(--muted);
}
.secondary {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
}
.meta {
  margin: 16px 0 12px;
  min-height: 22px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.meta.error {
  color: var(--danger);
}
.caption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.product-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 12px 40px #00000008;
}
.product-card h2 {
  margin: 12px 0 24px;
  font-size: 26px;
}
.capability {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 17px 0;
  border-top: 1px solid var(--line);
}
.number {
  flex-shrink: 0;
  color: var(--accent);
  background: var(--soft);
  border-radius: 10px;
  padding: 10px;
  font-weight: 800;
  font-size: 13px;
}
.capability h3 {
  margin: 0 0 5px;
  font-size: 16px;
}
.capability p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.product-note {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  margin: 10px 0 0;
}
.info {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 34px;
}
.info article {
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
}
.info h2 {
  font-size: 17px;
  margin: 0 0 12px;
}
.info p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
  margin: 0;
}
.installation {
  border-top: 1px solid var(--line);
  padding: 28px 0;
}
.installation h2 {
  margin: 8px 0 22px;
  font-size: 26px;
}
.installation ol {
  padding-left: 24px;
  line-height: 1.8;
}
.installation li {
  margin-bottom: 10px;
  padding-left: 5px;
}
.checksum {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.checksum summary {
  cursor: pointer;
  min-height: 28px;
  font-weight: 700;
}
.checksum p {
  font-size: 13px;
  color: var(--muted);
}
.checksum code {
  display: block;
  overflow-wrap: anywhere;
  background: var(--soft);
  padding: 14px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.6;
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  padding: 36px 0;
}
[hidden] {
  display: none !important;
}
@media (max-width: 820px) {
  .page {
    padding: 0 20px;
  }
  header {
    padding: 18px 0;
    flex-wrap: wrap;
    gap: 12px;
  }
  nav {
    gap: 4px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 38px 0;
  }
  .copy h1 {
    letter-spacing: -1px;
  }
  .product-card {
    padding: 22px;
  }
  .info {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}