* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", "Noto Sans Thai", sans-serif;
  color: #1a2b3c;
  background: #f5f9fc;
  line-height: 1.6;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 36px;
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.nav-logo {
  font-weight: 800;
  font-size: 1.05rem;
  color: #0369a1;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
}

.nav-links a {
  margin-left: 18px;
  text-decoration: none;
  color: #1a2b3c;
  font-size: 0.85rem;
}

#lang-toggle {
  margin-left: 18px;
  padding: 6px 14px;
  border-radius: 16px;
  border: 1px solid #0369a1;
  background: #fff;
  color: #0369a1;
  cursor: pointer;
  font-size: 0.8rem;
}

.hero {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(135deg, #0ea5e9, #0369a1);
  color: #fff;
}

.hero h1 {
  font-size: 2.2rem;
  max-width: 760px;
  margin: 0 auto 16px;
}

.tagline {
  font-size: 1.05rem;
  opacity: 0.95;
  margin-bottom: 28px;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 6px;
  background: #fff;
  color: #0369a1;
  text-decoration: none;
  font-weight: 700;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 70px 20px;
}

section {
  margin-bottom: 70px;
}

h2 {
  text-align: center;
  margin-bottom: 30px;
  font-size: 1.6rem;
  color: #0369a1;
}

.dept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.dept-card {
  background: #fff;
  border-radius: 12px;
  padding: 26px 16px;
  text-align: center;
  font-size: 2rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.dept-card span {
  display: block;
  font-size: 0.88rem;
  margin-top: 10px;
  color: #1a2b3c;
}

.booking-form {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.booking-form input {
  padding: 10px 14px;
  border: 1px solid #cde4f5;
  border-radius: 8px;
  font-size: 0.9rem;
}

.booking-form button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: #0369a1;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.article-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.insurance {
  text-align: center;
}

.insurance-badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.insurance-badges span {
  background: #e0f2fe;
  color: #0369a1;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.contact {
  text-align: center;
}

.contact p {
  margin-bottom: 8px;
}

.map-placeholder {
  margin-top: 20px;
  height: 200px;
  background: #e0f2fe;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0369a1;
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 22px;
  color: #5c7a8a;
  font-size: 0.85rem;
  background: #fff;
}