:root {
  --primary: #0067b8;
  --primary-dark: #005b9e;
  --secondary: #00bc87;
  --dark: #1a1a2e;
  --gray: #6e6e6e;
  --light: #f7f9fc;
  --white: #fff;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0, 103, 184, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', system-ui, sans-serif;
  background: var(--light);
  color: var(--dark);
  margin: 0;
  line-height: 1.6;
}
body.rtl { font-family: 'Cairo', 'Tahoma', sans-serif; }
img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; }
.topbar {
  background: #e6f0fa;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 0;
}
.navbar-udc {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  padding: 0.6rem 0;
}
.navbar-udc .brand-title {
  font-weight: 700;
  color: var(--primary);
  font-size: 1.1rem;
  line-height: 1.2;
}
.navbar-udc .brand-tag {
  font-size: 0.72rem;
  color: var(--gray);
  font-style: italic;
}
.lang-switch .btn {
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
}
.lang-switch .btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary-udc {
  background: var(--primary);
  border: none;
  color: #fff;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.55rem 1.25rem;
}
.btn-primary-udc:hover { background: var(--primary-dark); color: #fff; }
.btn-outline-udc {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.5rem 1.1rem;
}
.btn-outline-udc:hover { background: #e6f0fa; color: var(--primary); }
.hero {
  background: linear-gradient(135deg, rgba(0,103,184,0.88), rgba(0,188,135,0.75)),
              url('../../img/arab-dentists.webp') center/cover;
  color: #fff;
  min-height: 420px;
  display: flex;
  align-items: center;
  padding: 4rem 0;
}
.hero-card {
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 640px;
}
.hero-badge {
  display: inline-block;
  background: var(--secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  border-radius: 50px;
  margin-bottom: 0.75rem;
}
.section { padding: 4rem 0; }
.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.35rem;
}
.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--secondary);
  margin-top: 0.5rem;
}
.section-title.center::after { margin-left: auto; margin-right: auto; }
.section-sub { color: var(--gray); max-width: 560px; }
.service-card, .doctor-card, .clinic-card, .testimonial-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: none;
  height: 100%;
  transition: transform 0.25s, box-shadow 0.25s;
}
.service-card:hover, .doctor-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,103,184,0.12);
}
.doctor-card .card-img-top {
  height: 220px;
  object-fit: contain;
  background: #e6f0fa;
  padding: 0.5rem;
}
.doctor-card .specialty {
  color: var(--secondary);
  font-size: 0.85rem;
  font-weight: 600;
}
.doctor-card .langs {
  font-size: 0.78rem;
  color: var(--gray);
}
.filter-btns .btn {
  border-radius: 50px;
  font-size: 0.85rem;
  margin: 0.2rem;
}
.filter-btns .btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.contact-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}
.footer-udc {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding: 3rem 0 0;
}
.footer-udc h5 { color: var(--secondary); font-size: 1rem; }
.footer-udc a { color: rgba(255,255,255,0.75); }
.footer-udc a:hover { color: var(--secondary); }
.footer-mid {
  background: #12121f;
  font-size: 0.85rem;
  padding: 0.85rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-low {
  background: #0d0d16;
  text-align: center;
  font-size: 0.8rem;
  padding: 0.7rem;
  color: rgba(255,255,255,0.45);
}
.whatsapp-float {
  position: fixed;
  bottom: 5.5rem;
  right: 1.25rem;
  width: 52px;
  height: 52px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  z-index: 1040;
}
.rtl .whatsapp-float { right: auto; left: 1.25rem; }
.back-top {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1039;
  cursor: pointer;
}
.back-top.show { display: flex; }
.rtl .back-top { right: auto; left: 1.25rem; }
.accordion-button:not(.collapsed) {
  background: #e6f0fa;
  color: var(--primary);
}
@media (max-width: 767.98px) {
  .hero { min-height: 360px; padding: 2.5rem 0; }
  .section { padding: 2.75rem 0; }
}