:root {
  color-scheme: dark;
  --bg: #09080e;
  --panel: rgba(255, 255, 255, 0.065);
  --panel-strong: rgba(255, 255, 255, 0.095);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f7f3ff;
  --muted: #aaa3b8;
  --accent: #bd78fa;
  --accent-strong: #d6a9ff;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(115, 62, 208, 0.34), transparent 34rem),
    radial-gradient(circle at 90% 90%, rgba(164, 94, 224, 0.18), transparent 30rem),
    linear-gradient(145deg, #08070c, #11101a 48%, #08080d);
}

a { color: var(--accent-strong); text-decoration: none; }
a:hover { color: #fff; }

.shell {
  width: min(100% - 32px, 960px);
  margin: 0 auto;
  padding: 72px 0 36px;
}

.hero { padding: 42px 0 52px; max-width: 780px; }
.document { max-width: 800px; }

.mark {
  display: grid;
  place-items: center;
  width: 74px;
  height: 74px;
  margin-bottom: 28px;
  border: 1px solid rgba(205, 155, 255, 0.32);
  border-radius: 24px;
  color: var(--accent-strong);
  background: linear-gradient(145deg, rgba(190, 116, 250, 0.24), rgba(255, 255, 255, 0.04));
  box-shadow: 0 18px 50px rgba(92, 44, 143, 0.32);
  font-weight: 900;
  letter-spacing: -4px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 9vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h2 { margin: 0 0 10px; font-size: 20px; letter-spacing: -0.02em; }

.lead {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 3vw, 23px);
  line-height: 1.65;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  background: var(--panel);
  font-weight: 750;
}

.button.primary { color: #120d17; border-color: transparent; background: var(--accent-strong); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(145deg, var(--panel-strong), var(--panel));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
}

.card p, .prose li { margin: 0; color: var(--muted); line-height: 1.75; }
.prose { margin-top: 14px; }
.prose p + p { margin-top: 14px; }

.back { display: inline-block; margin-bottom: 48px; color: var(--muted); font-weight: 700; }

.notice {
  margin-top: 18px;
  padding: 18px 20px;
  border-left: 3px solid var(--accent);
  border-radius: 0 16px 16px 0;
  color: var(--muted);
  background: rgba(189, 120, 250, 0.08);
  line-height: 1.7;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

footer nav { display: flex; gap: 18px; }

@media (max-width: 720px) {
  .shell { padding-top: 42px; }
  .hero { padding-top: 24px; }
  .grid { grid-template-columns: 1fr; }
  .card { border-radius: 20px; }
  footer { flex-direction: column; }
}