:root {
  --bg: #0b1220;
  --card: rgba(11, 18, 32, 0.78);
  --border: rgba(255, 255, 255, 0.14);
  --text: #ffffff;
  --muted: #94a3b8;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "DM Sans", "Cairo", "Segoe UI", system-ui, sans-serif;
  line-height: 1.65;
}

a { color: #cbd5e1; }
a:hover { color: #fff; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.25rem;
  background: rgba(11, 18, 32, 0.92);
  border-bottom: 1px solid var(--border);
}

.brand {
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.15rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.site-nav a[aria-current="page"],
.site-nav a:hover { color: #fff; }

.wrap {
  width: min(920px, 100%);
  margin: 0 auto;
}

.hero, section { padding: 2.5rem 1.25rem; }

h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 0.8rem;
  font-size: 1.35rem;
}

.lead, .answer {
  color: #e2e8f0;
  max-width: 42rem;
}

.answer { font-size: 1.05rem; }

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

.stack, .cards {
  display: grid;
  gap: 0.85rem;
}

.cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card, .steps, table {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.card { padding: 1.05rem 1.1rem; }
.card h3 { margin: 0 0 0.35rem; font-size: 1.02rem; }
.card p, .card li { margin: 0; color: var(--muted); }

ol.steps {
  margin: 0;
  padding-block: 1rem;
  padding-inline: 2rem 1.1rem;
}

ol.steps li { margin: 0 0 0.55rem; }
ol.steps li:last-child { margin-bottom: 0; }

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 36rem;
}

th, td {
  text-align: start;
  vertical-align: top;
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border);
}

th { color: #fff; }
td { color: #cbd5e1; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary { background: #fff; color: #0b1220; }
.btn-primary:hover { color: #0b1220; }
.btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.28); }

.faq details {
  border-top: 1px solid var(--border);
  padding: 0.85rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
}

.faq p { margin: 0.55rem 0 0; color: var(--muted); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 1.25rem 2.5rem;
  color: var(--muted);
  text-align: center;
}

html[lang="ar"] body,
#lang-ar { font-family: "Cairo", "DM Sans", "Segoe UI", Tahoma, sans-serif; }

html[lang="en"] .nav-ar,
html[data-lang="en"] .nav-ar { display: none; }
html[lang="ar"] .nav-en,
html[data-lang="ar"] .nav-en { display: none; }

html[data-lang="en"] #lang-ar { display: none !important; }
html[data-lang="en"] #lang-en { display: block !important; }
html[data-lang="ar"] #lang-en { display: none !important; }
.lang-panel[hidden] { display: none !important; }

.lang-toggle { display: flex; gap: 0.35rem; flex: 0 0 auto; }
.lang-toggle button {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}
.lang-toggle button[aria-pressed="true"] {
  background: #fff;
  color: var(--bg);
  border-color: #fff;
  font-weight: 700;
}