:root {
  color-scheme: dark;
  --bg: #0d1015;
  --panel: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.18);
  --text: #f7f3ec;
  --muted: #b8c1cc;
  --accent: #58d5c9;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 20%, rgba(88, 213, 201, 0.18), transparent 26rem),
    linear-gradient(135deg, #0d1015, #171b21 48%, #11151b);
}

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

.shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 32px;
}

.hero,
.document {
  width: min(880px, 100%);
}

.hero {
  padding: 64px 0;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin: 32px 0 10px;
  font-size: 20px;
}

p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.lead {
  max-width: 680px;
  font-size: 21px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.actions a,
button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  background: var(--panel);
  text-decoration: none;
  cursor: pointer;
}

.document {
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.document h1 {
  font-size: clamp(36px, 7vw, 64px);
}

.back,
.muted {
  color: var(--muted);
}

.panel {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel);
}

.hidden {
  display: none;
}

textarea {
  width: 100%;
  min-height: 140px;
  margin: 12px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.24);
  font: 14px/1.5 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}