/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
  --spa-primary-color: #8d7b68; /* Màu nâu đất ấm áp */
  --spa-secondary-color: #a4907c; /* Nâu nhạt hơn */
  --spa-accent-color: #c8b6a6; /* Be sáng */
  --spa-text-dark: #3d3222; /* Nâu đậm cho chữ */
  --spa-text-light: #f1dec9; /* Be rất nhạt cho chữ trên nền tối */
  --spa-background-light: #fdf8ee; /* Nền trắng ngà */
  --font-playfair: "Playfair Display", serif;
  --font-poppins: "Poppins", sans-serif;
  --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.08);
}

body {
  font-family: var(--font-poppins);
  color: var(--spa-text-dark);
  background-color: var(--spa-background-light);
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-playfair);
  font-size: 2.8rem;
  color: var(--spa-primary-color);
  text-align: center;
  margin-bottom: 1.5rem;
  font-weight: 600;
  position: relative;
  padding-bottom: 1rem;
}

/* Thêm gạch chân trang trí cho tiêu đề */
.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--spa-accent-color);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--spa-secondary-color);
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem auto;
}

/* ==========================================================================
   Hero Section (Đã cải tiến)
   ========================================================================== */
.spa-hero {
  position: relative;
  height: 90vh;
  min-height: 500px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 2rem;
}

/* Sử dụng ::before để tạo lớp phủ, giúp HTML gọn gàng hơn */
.spa-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Dải màu chuyển tiếp sang trọng thay vì màu đen đơn điệu */
  background: linear-gradient(
    to top,
    rgba(61, 50, 34, 0.7) 0%,
    rgba(141, 123, 104, 0.3) 100%
  );
  z-index: 1;
}

.spa-hero-content {
  position: relative;
  z-index: 2; /* Đảm bảo nội dung nằm trên lớp phủ */
}

.spa-title {
  font-family: var(--font-playfair);
  font-size: 3.8rem;
  margin-bottom: 1rem;
  font-weight: 600;
  color: #fff;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.spa-subtitle {
  font-size: 1.3rem;
  max-width: 800px;
  margin: 0 auto 2.5rem auto;
  line-height: 1.6;
  color: var(--spa-text-light);
  opacity: 0.95;
}

.btn-discover {
  background-color: var(--spa-primary-color);
  color: #fff;
  padding: 14px 35px;
  text-decoration: none;
  border-radius: 50px; /* Bo tròn mềm mại hơn */
  font-weight: 600;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.btn-discover:hover {
  background-color: transparent;
  border-color: var(--spa-text-light);
  color: var(--spa-text-light);
  transform: translateY(-3px);
}

/* ==========================================================================
   Why Choose Us Section
   ========================================================================== */
.why-choose-section {
  padding: 5rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 40px;
}

.feature-item {
  text-align: center;
  padding: 2.5rem 1.5rem;
  background-color: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-light);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 1.5rem;
  filter: grayscale(30%) sepia(20%) hue-rotate(0deg) saturate(70%)
    brightness(95%);
}

.feature-item h3 {
  font-family: var(--font-playfair);
  font-size: 1.5rem;
  color: var(--spa-primary-color);
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   Service Packages Section
   ========================================================================== */
.service-packages-section {
  padding: 5rem 0;
  background-color: #fff;
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(440px, 1fr));
  gap: 2rem;
}

.package-card {
  background-color: var(--spa-background-light);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-light);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.package-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
}

.package-image {
  overflow: hidden; /* Quan trọng để hiệu ứng zoom ảnh không bị tràn */
}

.package-image img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.package-card:hover .package-image img {
  transform: scale(1.05);
}

.package-content {
  padding: 1.5rem 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.package-content h3 {
  font-family: var(--font-playfair);
  font-size: 1.6rem;
  color: var(--spa-primary-color);
  margin: 0 0 0.75rem 0;
}

.package-meta {
  font-size: 0.9rem;
  color: var(--spa-secondary-color);
  margin-bottom: 1rem;
}

.package-meta span {
  margin-right: 1rem;
}

.package-content p {
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.btn-book-package {
  background-color: var(--spa-secondary-color);
  color: #fff;
  padding: 10px 25px;
  text-decoration: none;
  border-radius: 50px;
  text-align: center;
  font-weight: 500;
  transition: background-color 0.3s ease;
  align-self: flex-start;
}

.btn-book-package:hover {
  background-color: var(--spa-primary-color);
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */
.spa-gallery-section {
  padding: 5rem 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.gallery-item {
  overflow: hidden;
  border-radius: 12px;
  box-shadow: var(--shadow-light);
}

.gallery-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* ==========================================================================
   Booking/Contact Section
   ========================================================================== */
.booking-section {
  padding: 5rem 0;
  background-color: var(--spa-accent-color);
}

.booking-section .section-title,
.booking-section .section-subtitle {
  color: var(--spa-text-dark);
}

.contact-info {
  margin-top: 2rem;
  text-align: center;
  font-size: 1.1rem;
}

.contact-item {
  margin-bottom: 1rem;
}

.contact-item a {
  color: var(--spa-primary-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

.contact-item a:hover {
  color: var(--spa-text-dark);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .spa-title {
    font-size: 2.8rem;
  }
  .section-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 480px) {
  .packages-grid {
    grid-template-columns: 1fr;
  }
}