:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: #17212b;
  background: #f3f6f8;
  letter-spacing: 0;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; }
a { color: inherit; }

.site-header,
main,
footer {
  width: min(980px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid #d5dde3;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

nav { display: flex; gap: 22px; font-size: 14px; }
nav a { color: #53616d; text-decoration: none; }
nav a:hover { color: #176b55; }

.intro { padding: 74px 0 58px; max-width: 720px; }
.eyebrow { color: #176b55; font-size: 13px; font-weight: 700; text-transform: uppercase; }
h1 { margin: 12px 0 16px; max-width: 680px; font-size: clamp(36px, 6vw, 62px); line-height: 1.04; }
h2 { margin: 0 0 10px; font-size: 24px; }
p { color: #5a6874; line-height: 1.65; }

.band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 1.2fr);
  gap: 52px;
  padding: 34px 0;
  border-top: 1px solid #d5dde3;
  border-bottom: 1px solid #d5dde3;
}

.tool-row label { display: block; margin-bottom: 8px; font-size: 13px; font-weight: 700; }
.input-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
input, button { min-height: 44px; border-radius: 5px; font: inherit; }
input { width: 100%; border: 1px solid #aeb9c2; padding: 10px 12px; background: #fff; }
input:focus { outline: 3px solid rgba(23, 107, 85, .18); border-color: #176b55; }
button { border: 0; padding: 0 18px; color: #fff; background: #176b55; font-weight: 700; cursor: pointer; }
button:hover { background: #105440; }
output { display: block; min-height: 44px; margin-top: 10px; padding: 11px 12px; background: #e6f1ed; border-left: 3px solid #176b55; overflow-wrap: anywhere; }

.downloads { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; padding: 54px 0; }
.download-list { border-top: 1px solid #cfd9df; }
.download-list a { display: flex; justify-content: space-between; gap: 20px; padding: 18px 2px; border-bottom: 1px solid #cfd9df; text-decoration: none; }
.download-list a:hover span { color: #176b55; }
.download-list strong { color: #687783; font-size: 13px; }

.status { display: flex; align-items: center; gap: 9px; padding: 18px 0; color: #52616c; font-size: 13px; border-top: 1px solid #d5dde3; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #2d9b68; }
.status time { margin-left: auto; }

footer { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0 34px; color: #7a8791; font-size: 12px; }

@media (max-width: 680px) {
  .site-header { align-items: flex-start; padding: 18px 0; }
  nav { gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
  .intro { padding: 54px 0 40px; }
  .band, .downloads { grid-template-columns: 1fr; gap: 22px; }
  .input-row { grid-template-columns: 1fr; }
  button { width: 100%; }
}