:root {
  --bg: #07080c;
  --panel: #0f172a;
  --line: #1e293b;
  --ink: #f3f4f6;
  --muted: #94a3b8;
  --brand: #6366f1;
  --brand-strong: #4f46e5;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --panel: #ffffff;
    --line: #e2e8f0;
    --ink: #0f172a;
    --muted: #475569;
    color-scheme: light;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font:
    16px/1.6 system-ui,
    -apple-system,
    "Segoe UI",
    Tahoma,
    "Noto Sans Arabic",
    sans-serif;
}
a {
  color: var(--brand);
}
.top,
main,
.foot {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}
.brand img {
  border-radius: 8px;
}
.lang {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 10px;
}
.hero {
  padding-block: 56px 40px;
  text-align: center;
}
.badge {
  display: inline-block;
  color: var(--brand);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 14px;
  margin: 0 0 16px;
}
h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.2;
  margin: 0 0 16px;
}
h1 span {
  color: var(--brand);
}
.sub {
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 28px;
  font-size: 1.1rem;
}
.actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}
.btn.primary {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
  color: #fff;
}
.btn:hover {
  opacity: 0.9;
}
.note {
  color: var(--muted);
  font-size: 14px;
  margin-top: 16px;
}
.features h2,
.cta h2 {
  text-align: center;
  font-size: 1.6rem;
}
.features ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.features li {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.features h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}
.features p {
  margin: 0;
  color: var(--muted);
}
.cta {
  text-align: center;
  padding-block: 48px;
}
.cta p {
  color: var(--muted);
}
.doc {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 20px;
  margin-block: 16px 40px;
}
.doc h1 {
  font-size: 1.8rem;
}
.doc h2 {
  font-size: 1.15rem;
  margin-top: 28px;
}
.doc p,
.doc li {
  color: var(--muted);
}
.doc strong {
  color: var(--ink);
}
.doc ul {
  padding-inline-start: 20px;
}
code {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
  font-size: 0.9em;
}
.foot {
  border-top: 1px solid var(--line);
  padding-block: 24px 40px;
  color: var(--muted);
  font-size: 14px;
}
.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 12px;
}
.foot a {
  color: var(--muted);
}