:root {
  --primary: #6E90B4;
  --primary-dark: #223A63;
  --secondary: #555B63;
  --bg-soft: #E9F1F8;
  --white: #ffffff;
  --text: #1E2A36;
  --muted: #5f6c79;
  --border: rgba(34,58,99,0.12);
  --shadow: 0 18px 40px rgba(34,58,99,0.10);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1200px;
  --space: clamp(16px, 2vw, 24px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', 'Cairo', sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f7fbff 0%, var(--bg-soft) 100%);
}
html[dir="rtl"] body, body[dir="rtl"] { font-family: 'Cairo', 'Inter', sans-serif; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.skip-link {
  position: absolute; left: -9999px; top: 0;
}
.skip-link:focus {
  left: 16px; top: 16px; background: var(--primary-dark); color: #fff; padding: 10px 14px; z-index: 9999; border-radius: 10px;
}
.container { width: min(calc(100% - 32px), var(--container)); margin-inline: auto; }
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-shell {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 84px;
}
.brand-mark { display: inline-flex; flex-direction: column; gap: 2px; font-weight: 800; }
.brand-top { letter-spacing: 0.12em; font-size: 0.95rem; color: var(--primary-dark); }
.brand-bottom { font-size: 0.92rem; color: var(--secondary); }
.site-nav { display: flex; align-items: center; gap: 18px; }
.site-nav a { color: var(--text); font-weight: 500; }
.site-nav a:hover { color: var(--primary-dark); }
.nav-cta { margin-inline-start: 8px; }
.lang-switch { color: var(--primary-dark); font-weight: 700; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; width: 46px; height: 46px; border: 1px solid var(--border); border-radius: 12px; align-items: center; justify-content: center; background: #fff;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--primary-dark); display: block; }
.page-hero, .section, .section-sm { padding: clamp(48px, 6vw, 96px) 0; }
.section-sm { padding-top: 32px; padding-bottom: 32px; }
.surface-card, .quote-card, .form-shell, .project-card, .process-card, .info-card {
  background: rgba(255,255,255,0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.surface-card { padding: clamp(28px, 4vw, 52px); }
.section-title { font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.08; margin: 0 0 16px; color: var(--primary-dark); max-width: 14ch; }
.lead { font-size: clamp(1rem, 1.4vw, 1.15rem); color: var(--muted); max-width: 68ch; margin: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(110,144,180,0.14); color: var(--primary-dark);
  font-size: 0.82rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 18px;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.grid-3, .services-grid, .projects-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.contact-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 24px; }
.section-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 28px; }
.quote-card, .form-shell, .project-card, .process-card, .info-card { padding: 28px; }
.split-band {
  background: linear-gradient(135deg, var(--primary-dark), #3b5a89);
  color: #fff; border-radius: 28px; padding: 32px; box-shadow: var(--shadow);
}
.icon-badge, .badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 46px; min-height: 46px; border-radius: 14px;
  background: rgba(110,144,180,0.16); color: var(--primary-dark); font-weight: 800; margin-bottom: 16px;
}
.badge { min-width: auto; min-height: auto; padding: 8px 12px; border-radius: 999px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 12px 18px; border-radius: 14px; font-weight: 700; border: 1px solid transparent;
}
.btn-primary { background: var(--primary-dark); color: #fff; }
.btn-primary:hover { background: #1b2f4f; }
.btn-secondary { background: transparent; color: var(--primary-dark); border-color: var(--border); }
.button-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.check-list, .contact-list { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; color: var(--muted); }
.check-list li, .contact-list li { position: relative; padding-inline-start: 20px; }
.check-list li::before, .contact-list li::before {
  content: ''; position: absolute; inset-inline-start: 0; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary);
}
.form-group { display: grid; gap: 8px; margin-bottom: 16px; }
label { font-weight: 700; color: var(--primary-dark); }
input, select, textarea {
  width: 100%; border: 1px solid rgba(34,58,99,0.16); border-radius: 14px; padding: 14px 16px; font: inherit; color: var(--text); background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(110,144,180,0.35); border-color: var(--primary); }
.text-link { color: var(--primary-dark); font-weight: 700; }
.divider { height: 1px; background: var(--border); margin: 20px 0; }
.muted { color: var(--muted); }
.site-footer {
  background: var(--primary-dark); color: rgba(255,255,255,0.9); padding-top: 52px; margin-top: 40px;
}
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 24px; }
.site-footer h3, .site-footer h4 { color: #fff; margin-top: 0; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.site-footer a:hover { color: #fff; }
.footer-base { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 24px; padding: 18px 0 26px; font-size: 0.95rem; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 1024px) {
  .grid-3, .services-grid, .projects-grid, .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2, .contact-grid, .section-head { grid-template-columns: 1fr; display: grid; }
}
@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; top: calc(100% + 8px); inset-inline: 16px; display: none; flex-direction: column; align-items: stretch;
    background: rgba(255,255,255,0.98); border: 1px solid var(--border); border-radius: 22px; padding: 18px; box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: flex; }
}
@media (max-width: 640px) {
  .grid-3, .services-grid, .projects-grid, .footer-grid { grid-template-columns: 1fr; }
  .section-title { max-width: none; }
  .surface-card, .quote-card, .form-shell, .project-card, .process-card, .info-card, .split-band { padding: 22px; }
  .header-shell { min-height: 74px; }
}