:root {
  --bg: #090c14;
  --panel: rgba(17, 22, 36, 0.92);
  --panel-border: rgba(120, 143, 184, 0.2);
  --text: #f3f7ff;
  --muted: #b9c6dd;
  --accent: #66f2c6;
  --accent-strong: #1dc997;
  --danger: #ff8b8b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  background:
    radial-gradient(circle at top, rgba(51, 112, 255, 0.24), transparent 28%),
    radial-gradient(circle at 85% 15%, rgba(102, 242, 198, 0.18), transparent 24%),
    linear-gradient(180deg, #0a0f1d 0%, #070a12 100%);
  color: var(--text);
  font-family:
    "Segoe UI",
    "Helvetica Neue",
    Arial,
    sans-serif;
  line-height: 1.6;
}

body {
  margin: 0;
  min-height: 100vh;
}

.shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.hero,
.card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  padding: 28px;
  margin-bottom: 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(102, 242, 198, 0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0 0 12px;
  line-height: 1.15;
}

h1 {
  font-size: clamp(34px, 5vw, 56px);
  max-width: 10ch;
  margin-top: 18px;
}

h2 {
  font-size: 24px;
  margin-top: 22px;
}

h3 {
  font-size: 18px;
  margin-top: 18px;
}

p,
li {
  color: var(--muted);
  font-size: 16px;
}

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

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.chip,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(102, 242, 198, 0.22);
  text-decoration: none;
  font-weight: 700;
}

.button {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #04120d;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.card {
  padding: 22px;
}

.meta {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

.warning {
  color: var(--danger);
  font-weight: 700;
}

ul {
  padding-left: 20px;
}

footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

code {
  font-family:
    "SFMono-Regular",
    Consolas,
    "Liberation Mono",
    monospace;
  font-size: 0.95em;
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 960px);
    padding-top: 20px;
  }

  .hero,
  .card {
    border-radius: 20px;
  }

  .hero {
    padding: 22px;
  }
}