body {
  font-family: "Arial", sans-serif;
}

/* HERO SECTION */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90vh;
  background: linear-gradient(120deg, #f8f9fa 50%, #477fd4 50%);
  padding: 60px 0;
}

.hero-text {
  max-width: 550px;
}

.hero-text h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: #333;
}

.hero-text p {
  font-size: 1.25rem;
  color: #555;
  margin: 20px 0;
}

.hero-text .btn-primary {
  background-color: #477fd4;
  border: none;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 600;
}

.hero-text .btn-primary:hover {
  background-color: #477fd4;
}

.hero-img img {
  max-width: 420px;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Logo */
.navbar-brand img {
  width: 60px;
  height: auto;
  margin-right: 6px;
}

/* Dịch vụ */
.service-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

footer {
  background: #222;
  color: #fff;
  padding: 40px 0;
}