* {
  box-sizing: border-box;
}

:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --panel: rgba(15, 23, 42, 0.78);
  --panel-border: rgba(148, 163, 184, 0.2);
  --text: #e2e8f0;
  --muted: #cbd5e1;
  --accent: #f97316;
  --accent-2: #22d3ee;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(249, 115, 22, 0.18), transparent 24%),
    linear-gradient(180deg, #020617 0%, #111827 100%);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: var(--accent-2);
}

.shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 60px rgba(2, 6, 23, 0.32);
  overflow: hidden;
}

.hero {
  padding: 32px 28px 24px;
  border-bottom: 1px solid var(--panel-border);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.08;
}

.summary {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--muted);
}

.meta {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.24);
  background: rgba(15, 23, 42, 0.45);
  color: var(--text);
  text-decoration: none;
}

.content {
  padding: 8px 28px 32px;
}

section {
  padding-top: 24px;
}

h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

p,
li {
  color: var(--muted);
}

ul,
ol {
  padding-left: 22px;
  margin: 10px 0 0;
}

.callout {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(249, 115, 22, 0.24);
  background: rgba(249, 115, 22, 0.08);
}

.callout strong {
  color: var(--text);
}

.footer {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 640px) {
  .shell {
    width: min(100%, calc(100% - 20px));
    padding-top: 20px;
  }

  .hero,
  .content {
    padding-left: 18px;
    padding-right: 18px;
  }
}