header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(5, 11, 20, 0.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(123, 177, 255, 0.12);
}
.navbar {
  height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: fit-content;
}
.logo-mark {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #122238, #09111d);
  border: 1px solid rgba(123, 177, 255, 0.22);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), 0 12px 28px rgba(0,0,0,0.35);
  position: relative;
  overflow: hidden;
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: -30%;
  background: radial-gradient(circle, rgba(59,130,246,0.38), transparent 55%);
  animation: pulseGlow 3.8s ease-in-out infinite;
}
.logo-mark i {
  position: relative;
  z-index: 1;
  font-size: 1.5rem;
  color: var(--silver);
}
.logo-text h1 {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: #fff;
}
.logo-text p {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--blue);
  margin-top: 4px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}
.nav-links a {
  position: relative;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: #fff; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--silver));
  border-radius: 2px;
  transition: 0.3s ease;
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  padding: 14px 26px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  box-shadow: 0 18px 30px rgba(30,136,229,0.28);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 40px rgba(30,136,229,0.36);
}
.btn-outline {
  padding: 13px 24px;
  color: var(--silver);
  background: transparent;
  border: 1px solid rgba(220,231,244,0.28);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(59,130,246,0.45);
  transform: translateY(-3px);
}
.service-card {
  padding: 30px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(15,26,42,0.92), rgba(9,16,28,0.95));
  border: 1px solid rgba(123, 177, 255, 0.12);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.08), transparent 45%);
  opacity: 0;
  transition: 0.3s ease;
}
.service-card:hover {
  transform: translateY(-10px);
  border-color: rgba(59,130,246,0.35);
  box-shadow: 0 30px 60px rgba(0,0,0,0.38);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 62px;
  height: 62px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  background: linear-gradient(145deg, rgba(59,130,246,0.18), rgba(220,231,244,0.08));
  border: 1px solid rgba(123, 177, 255, 0.16);
  color: var(--blue);
  font-size: 1.45rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}
.service-card h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
  color: #fff;
}
.service-card p {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 18px;
}
.price-tag {
  font-size: 1rem;
  font-weight: 800;
  color: var(--silver);
  letter-spacing: 0.02em;
}
.contact-card {
  padding: 28px;
  text-align: center;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(14,25,41,0.92), rgba(8,14,24,0.96));
  border: 1px solid rgba(123, 177, 255, 0.12);
  box-shadow: var(--shadow-soft);
}
.contact-card i {
  font-size: 1.8rem;
  color: var(--blue);
  margin-bottom: 16px;
}
.contact-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.contact-card p {
  color: var(--muted);
  line-height: 1.7;
}