@font-face {
  font-family: "Geist";
  src: url("../fonts/geist/Geist-Variable.b39676298197.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

.app-header {
  background: #0b1224;
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  backdrop-filter: none;
}
.app-logo,
.rd-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #e5e7eb;
  text-decoration: none;
}
.rd-brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 16px;
  background: rgba(248, 250, 252, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 40px rgba(2, 6, 23, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.rd-brand-icon img {
  width: 26px;
  height: 26px;
  display: block;
  transform: translateY(1px);
}
.rd-brand-name {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.01em;
}
.rd-brand-tagline {
  font-size: 13px;
  color: #cbd5e1;
  font-weight: 400;
  display:block;
  margin-top: 2px;
}
body {
  margin: 0;
  font-family: "Geist", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #020617;
  color: #e5e7eb;
  letter-spacing: -0.01em;
}
.layout {
  max-width: 900px;
  margin: 48px auto 72px;
  padding: 0 24px;
}
h1 {
  font-size: 32px;
  margin-bottom: 6px;
}
h2 {
  font-size: 22px;
  margin-top: 30px;
  margin-bottom: 8px;
}
h3 {
  font-size: 16px;
  margin-top: 18px;
  margin-bottom: 6px;
}
p {
  margin: 0 0 10px;
  line-height: 1.6;
  color: #e5e7eb;
}
ul {
  margin: 0 0 10px 20px;
  padding: 0;
}
li {
  margin-bottom: 4px;
}
.meta {
  font-size: 14px;
  color: #9ca3af;
  margin-bottom: 24px;
}
.hero-panel {
  padding: 26px 24px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 0 0, rgba(56,189,248,0.24), transparent 50%),
    radial-gradient(circle at 100% 0, rgba(74,222,128,0.18), transparent 45%),
    linear-gradient(155deg, rgba(15,23,42,0.96), rgba(15,23,42,0.88));
  border: 1px solid rgba(148,163,184,0.22);
  box-shadow: 0 30px 90px rgba(15,23,42,0.58);
  margin-bottom: 28px;
}
a code,
li code,
p code {
  color: #bfdbfe;
}
a {
  color: #38bdf8;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

ul {
  margin-bottom: 14px;
}

li {
  margin-bottom: 8px;
}