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

body {
  font-family: "Segoe UI", "Noto Sans Thai", sans-serif;
  color: #16302b;
  background: #f7fbfa;
  line-height: 1.6;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 36px;
  background: rgba(255, 255, 255, 0.95);
  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: #0f766e;
  letter-spacing: 1px;
}

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

.nav-links a {
  margin-left: 20px;
  text-decoration: none;
  color: #16302b;
  font-size: 0.88rem;
}

#lang-toggle {
  margin-left: 20px;
  padding: 6px 14px;
  border-radius: 16px;
  border: 1px solid #0f766e;
  background: #fff;
  color: #0f766e;
  cursor: pointer;
  font-size: 0.8rem;
}

.hero {
  text-align: center;
  padding: 110px 20px;
  background: linear-gradient(135deg, #14b8a6, #0f766e);
  color: #fff;
}

.hero h1 {
  font-size: 2.4rem;
  max-width: 760px;
  margin: 0 auto 16px;
}

.tagline {
  font-size: 1.1rem;
  opacity: 0.95;
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 30px;
  background: #fff;
  color: #0f766e;
  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: 1.7rem;
  color: #0f766e;
}

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

.room-card {
  background: #fff;
  border-radius: 14px;
  padding: 30px 20px;
  text-align: center;
  font-size: 2.2rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.room-card h3 {
  font-size: 1.05rem;
  margin: 12px 0 6px;
  color: #16302b;
}

.room-card .price {
  font-size: 0.9rem;
  color: #0f766e;
  font-weight: 600;
}

.amenity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.amenity-item {
  background: #e6f7f4;
  border-radius: 12px;
  padding: 24px 10px;
  text-align: center;
  font-size: 2rem;
}

.amenity-item span {
  display: block;
  font-size: 0.85rem;
  margin-top: 8px;
  color: #16302b;
}

.promo-card {
  background: #0f766e;
  color: #fff;
  border-radius: 14px;
  padding: 30px;
  text-align: center;
  font-size: 1.05rem;
}

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

.review-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.review-card p {
  margin-bottom: 10px;
  font-style: italic;
}

.review-card span {
  font-size: 0.85rem;
  color: #5c7a72;
}

.contact {
  text-align: center;
}

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

.book-form {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.book-form input {
  padding: 10px 14px;
  border: 1px solid #cdeae5;
  border-radius: 8px;
  font-size: 0.9rem;
}

.book-form button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: #0f766e;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

.map-placeholder {
  margin-top: 20px;
  height: 200px;
  background: #e6f7f4;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0f766e;
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 22px;
  color: #5c7a72;
  font-size: 0.85rem;
  background: #fff;
}