:root {
  --bg: #05080d;
  --line: rgba(255, 255, 255, 0.09);
  --text: #eef3f9;
  --muted: #94a3b8;
  --accent: #7fd3ff;
  --max: 720px;
  --r: 18px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a {
  color: inherit;
}
.stub-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.stub-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 18px 80px;
}
.stub-main h1 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}
.stub-main p {
  color: var(--muted);
  margin: 0 0 14px;
}
.stub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.btn {
  display: inline-flex;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
}
.btn.primary {
  border-color: rgba(127, 211, 255, 0.35);
  background: rgba(127, 211, 255, 0.12);
}