:root {
  --bg: #07060d;
  --ink: #fafafa;
  --ink-soft: #c8c5d4;
  --ink-muted: #8b87a0;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --violet: #a48bff;
  --cyan: #5fe1ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, -apple-system, "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 0%, rgba(122, 92, 255, 0.18), transparent 45%),
    radial-gradient(circle at 90% 10%, rgba(95, 225, 255, 0.12), transparent 45%);
  z-index: -1;
}

.wrap {
  width: min(100% - 32px, 820px);
  margin: 0 auto;
  padding: 56px 0 96px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  object-fit: cover;
}

.brand span {
  font-size: 1.05rem;
}

.brand span span {
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.topbar a.back {
  color: var(--ink-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.topbar a.back:hover { color: var(--ink); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--violet);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h2 {
  margin: 56px 0 14px;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.005em;
}

h3 {
  margin: 28px 0 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

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

.lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 60ch;
}

.updated {
  color: var(--ink-muted);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 4px 0 0;
}

ul {
  padding-left: 1.2rem;
  margin: 12px 0 0;
}

ul li { margin-bottom: 6px; }

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

a:hover { color: #fff; }

.card {
  margin-top: 18px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.025);
}

.card p:first-child { margin-top: 0; }
.card p:last-child  { margin-bottom: 0; }

.contact {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.04);
}

.contact a:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.32);
}

.faqGrid {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.faqGrid details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
  overflow: hidden;
}

.faqGrid summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 20px;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faqGrid summary::-webkit-details-marker { display: none; }

.faqGrid summary::after {
  content: "+";
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 1.2rem;
  color: var(--ink-muted);
  transition: transform 160ms ease;
}

.faqGrid details[open] summary::after { transform: rotate(45deg); }

.faqGrid details > div {
  padding: 0 20px 18px;
  color: var(--ink-soft);
}

.faqGrid details > div > *:first-child { margin-top: 0; }

.topicGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.topicGrid article {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.topicGrid h3 { margin: 0 0 6px; font-size: 1rem; }
.topicGrid p  { margin: 0; color: var(--ink-muted); font-size: 0.92rem; }

footer.foot {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
}

footer.foot a {
  color: var(--ink-muted);
  text-decoration: none;
}

footer.foot a:hover { color: var(--ink); }