:root {
  --bg: #070707;
  --panel: rgba(18,18,18,.92);
  --button: rgba(255,255,255,.06);
  --button-hover: rgba(255,255,255,.10);
  --text: #f5f5f5;
  --muted: #b8b8b8;
  --border: rgba(255,255,255,.14);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top, rgba(255,255,255,.10), transparent 35%),
    linear-gradient(180deg, #101010, #000);
  color: var(--text);
  min-height: 100vh;
  padding: 22px;
}
main {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 30px 22px;
  box-shadow: 0 24px 80px rgba(0,0,0,.45);
  backdrop-filter: blur(8px);
}
h1 {
  margin: 0;
  font-size: clamp(34px, 7vw, 66px);
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
}
.kicker {
  margin: 12px 0 24px;
  text-align: center;
  color: var(--muted);
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: 13px;
}
.intro {
  margin: 0 auto 28px;
  max-width: 650px;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
  font-size: 16px;
}
.section-title {
  margin: 28px 0 12px;
  color: #fff;
  font-size: 14px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.links {
  display: grid;
  gap: 12px;
}
a.button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: var(--text);
  background: var(--button);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 17px 18px;
  font-size: 17px;
  transition: transform .15s ease, background .15s ease;
}
a.button:hover {
  transform: translateY(-1px);
  background: var(--button-hover);
}
.arrow { color: var(--muted); }
footer {
  margin-top: 28px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.back {
  display: inline-block;
  margin: 0 0 18px;
  color: var(--text);
  text-decoration: none;
}
.page-card {
  margin-top: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 26px;
}
.page-card h1 {
  text-align: left;
  font-size: clamp(28px, 5vw, 46px);
}
.page-card p {
  color: var(--muted);
  line-height: 1.65;
}
.placeholder {
  margin-top: 20px;
  border: 1px dashed var(--border);
  border-radius: 18px;
  padding: 18px;
  color: var(--muted);
}
@media (min-width: 760px) {
  body { padding: 36px; }
  .card { padding: 46px; }
  .links { grid-template-columns: 1fr 1fr; }
  a.button.primary { grid-column: 1 / -1; }
}