:root {
  --ink: #0e1116;
  --ink-soft: #4a5568;
  --line: #e3e7ee;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --accent: #1f6feb;
  --max: 960px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* header */
.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(140%) blur(6px);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--ink);
  text-decoration: none;
}

.mark { width: 26px; height: 26px; fill: var(--accent); }

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 15px;
}

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

.nav .lang {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 14px;
  color: var(--ink);
}

/* hero */
.hero { padding: 96px 0 72px; }

.eyebrow {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(34px, 5.4vw, 56px);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 700;
  max-width: 15ch;
}

.lead {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 20px);
  color: var(--ink-soft);
  max-width: 60ch;
}

/* sections */
.section { padding: 64px 0; border-top: 1px solid var(--line); }
.section-alt { background: var(--bg-alt); }

h2 {
  margin: 0 0 20px;
  font-size: 24px;
  letter-spacing: -.01em;
}

.section p { margin: 0 0 16px; max-width: 66ch; color: var(--ink-soft); }
.section p:last-child { margin-bottom: 0; }

.cards {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 22px 24px;
}

.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; font-size: 15.5px; }

.email {
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 600;
  margin: 8px 0 28px !important;
}

.email a { color: var(--accent); text-decoration: none; }
.email a:hover { text-decoration: underline; }

address {
  font-style: normal;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.7;
}

/* footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
}

.site-footer p {
  margin: 0;
  font-size: 13.5px;
  color: #7a869a;
}

/* rtl */
html[dir="rtl"] body { font-family: "SF Arabic", "Geeza Pro", "Segoe UI", Tahoma, sans-serif; }
html[dir="rtl"] h1 { max-width: 18ch; }

@media (max-width: 620px) {
  .hero { padding: 64px 0 48px; }
  .nav { gap: 14px; font-size: 14px; }
  .nav a { font-size: 14px; }
  .section { padding: 48px 0; }
}