:root {
  color-scheme: dark;
  font-family: "Segoe UI Variable Text", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(89, 141, 255, 0.18), transparent 30%),
    linear-gradient(180deg, #0f1623 0%, #090d15 100%);
  color: #edf2fb;
  --surface: rgba(18, 24, 36, 0.96);
  --surface-2: rgba(26, 33, 48, 0.98);
  --border: rgba(255, 255, 255, 0.08);
  --accent: #73a8ff;
  --accent-2: #66e2be;
  --text-soft: #9aa8be;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  line-height: 1.5;
}

a {
  color: inherit;
}

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

.shell--narrow {
  width: min(840px, calc(100% - 32px));
}

.hero,
.card {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero {
  border-radius: 28px;
  padding: 32px;
}

.hero--document {
  margin-bottom: 16px;
}

.hero__eyebrow {
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 12px;
}

h1,
h2,
p,
ul {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1;
  margin-bottom: 14px;
}

h2 {
  font-size: 1.1rem;
  margin: 24px 0 10px;
}

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

ul {
  padding-left: 20px;
}

li + li,
p + p {
  margin-top: 8px;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 999px;
  padding: 0 18px;
  border: 1px solid var(--border);
  text-decoration: none;
}

.button--primary {
  background: linear-gradient(135deg, rgba(115, 168, 255, 0.92), rgba(102, 226, 190, 0.72));
  color: #07111f;
  border-color: transparent;
  font-weight: 700;
}

.button--secondary {
  background: rgba(255, 255, 255, 0.04);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.card {
  border-radius: 24px;
  padding: 24px;
}

.card--document h2:first-child {
  margin-top: 0;
}

.back-link {
  display: inline-flex;
  margin: 0 0 14px;
  color: var(--accent);
  text-decoration: none;
}

code {
  font-family: "Cascadia Code", "Consolas", monospace;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 2px 6px;
}