:root {
  color-scheme: dark;
  --bg: #080912;
  --panel: rgba(24, 26, 45, 0.86);
  --panel-border: rgba(255, 255, 255, 0.12);
  --text: #f4f6ff;
  --muted: rgba(244, 246, 255, 0.72);
  --soft: rgba(244, 246, 255, 0.58);
  --cyan: #25e1ff;
  --blue: #3d7dff;
  --purple: #8a49ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at 20% 10%, rgba(68, 74, 255, 0.25), transparent 28rem),
    radial-gradient(circle at 85% 20%, rgba(37, 225, 255, 0.18), transparent 24rem),
    radial-gradient(circle at 50% 100%, rgba(138, 73, 255, 0.22), transparent 26rem),
    var(--bg);
  line-height: 1.65;
}

.page {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0;
}

.hero {
  padding: 42px;
  margin-bottom: 20px;
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(61, 125, 255, 0.18), rgba(138, 73, 255, 0.16)),
    rgba(12, 14, 28, 0.82);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.summary {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.updated {
  margin: 20px 0 0;
  color: var(--soft);
  font-size: 0.95rem;
}

.card {
  padding: 28px 30px;
  margin: 14px 0;
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background: var(--panel);
  backdrop-filter: blur(12px);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  line-height: 1.3;
}

p {
  margin: 0 0 12px;
  color: var(--muted);
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0 0 14px 1.1rem;
  padding: 0;
  color: var(--muted);
}

li {
  margin: 7px 0;
}

a {
  color: var(--cyan);
}

code {
  padding: 0.15rem 0.35rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: #dce8ff;
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 22px, 980px);
    padding: 22px 0;
  }

  .hero,
  .card {
    padding: 22px;
    border-radius: 18px;
  }
}