@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&family=Playfair+Display:wght@600&display=swap');

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

body {
  font-family: 'Poppins', sans-serif;
  background-color: #f4f7fb;
  color: #222;
}

/* HEADER */
#header {
  background: linear-gradient(90deg, #2f6b96, #1e6091);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 80px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 55px;
  height: 55px;
   border-radius: 50%;
}

.logo h2 {
  color: #fff;
  font-size: 22px;
  font-family: 'Playfair Display', serif;
  letter-spacing: 1px;
}

#menu ul {
  list-style: none;
}

#menu ul li {
  display: inline-block;
  margin: 0 15px;
  position: relative;
}

#menu ul li a {
  color: #eaf8ff;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  padding: 5px 0;
  position: relative;
}

#menu ul li a::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  background: #fff;
  bottom: -5px;
  left: 0;
  transition: 0.3s;
}

#menu ul li a:hover::after {
  width: 100%;
}

/* Nút menu di động */
.menu-toggle {
  display: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
}

@media (max-width: 900px) {
  #menu {
    display: none;
    width: 100%;
    background: #1e6091;
    text-align: center;
    padding: 15px 0;
  }

  #menu ul li {
    display: block;
    margin: 15px 0;
  }

  .menu-toggle {
    display: block;
  }

  #menu.active {
    display: block;
    animation: fadeSlide 0.5s ease forwards;
  }
}

/* Hiệu ứng xuất hiện menu */
@keyframes fadeSlide {
  from {opacity: 0; transform: translateY(-20px);}
  to {opacity: 1; transform: translateY(0);}
}

/* BANNER */
#banner {
  position: relative;
  width: 100%;
  height: 650px;
  overflow: hidden;
}

#banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(70%);
  transform: scale(1);
  transition: transform 8s ease;
}

#banner:hover img {
  transform: scale(1.05);
}

.banner-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  text-align: center;
  max-width: 800px;
}

.banner-text h1 {
  font-family: 'Playfair Display', serif;
  font-size: 50px;
  font-weight: 600;
  line-height: 1.3;
}

.banner-text p {
  font-size: 20px;
  margin: 20px 0 30px;
}

.btn {
  background-color: #1eb2a6;
  color: white;
  padding: 14px 36px;
  border: none;
  border-radius: 30px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

.btn:hover {
  background-color: #148b83;
  transform: translateY(-3px);
}
  .btn-card {
  display: inline-block;
  background: #1e6091;
  color: #fff;
  padding: 10px 22px;
  border-radius: 20px;
  margin: 15px;
  text-decoration: none;
  transition: 0.3s;
}

.btn-card:hover {
  background: #14496c;
  transform: translateY(-3px);
}

/* CONTENT */
#content {
  padding: 70px 90px;
  background-color: #fff;
}

/* ====== PHẦN GIỚI THIỆU VIỆT NAM ====== */
.intro {
  background: linear-gradient(135deg, #e6f2ff 0%, #ffffff 100%);
  border-radius: 20px;
  padding: 60px 80px;
  margin: 60px auto;
  max-width: 1000px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.intro::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(30,178,166,0.15) 0%, transparent 60%);
  z-index: 0;
  transition: opacity 0.6s ease;
}

.intro:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.intro h2 {
  font-family: 'Playfair Display', serif;
  font-size: 36px;
  color: #0a3d62;
  margin-bottom: 25px;
  position: relative;
  z-index: 1;
}

.intro h2::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  background-color: #1eb2a6;
  margin: 15px auto 0;
  border-radius: 3px;
}

.intro p {
  font-size: 18px;
  color: #333;
  line-height: 1.8;
  max-width: 850px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
/* Hiệu ứng fade-in khi cuộn */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}


/* DESTINATIONS */
.destinations {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 35px;
}

/* ====== TỔNG QUAN VỀ VIỆT NAM ====== */
.about-vn {
  background: linear-gradient(135deg, #e8f4fa, #ffffff);
  padding: 80px 90px;
  border-radius: 30px;
  margin-bottom: 70px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.about-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
}

.about-image img {
  width: 500px;
  border-radius: 25px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  transition: transform 0.5s ease;
}

.about-image img:hover {
  transform: scale(1.03);
}

.about-text {
  flex: 1;
  min-width: 300px;
}

.about-text h2 {
  font-family: 'Playfair Display', serif;
  font-size: 32px;
  color: #0a3d62;
  margin-bottom: 20px;
}

.about-text p {
  font-size: 17px;
  color: #333;
  line-height: 1.7;
  margin-bottom: 15px;
  text-align: justify;
}

.about-text .btn {
  margin-top: 10px;
}

/* Responsive cho mobile */
@media (max-width: 900px) {
  .about-container {
    flex-direction: column;
    text-align: center;
  }
  .about-image img {
    width: 100%;
  }
}


.card {
  background: white;
  border-radius: 15px;
  width: 340px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  overflow: hidden;
  text-decoration: none; /* Xóa gạch chân */
  color: inherit; /* Giữ nguyên màu chữ */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: block;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}


/* Hiệu ứng card xuất hiện đẹp hơn */
.card.fade-in {
  opacity: 0;
  transform: translateY(40px) scale(0.95);
  transition: all 0.9s ease-out;
}

.card.fade-in.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.card h3 {
  font-family: 'Playfair Display', serif;
  color: #0a3d62;
  margin: 15px;
}

.card p {
  color: #333;
  margin: 0 15px 20px;
  text-align: justify;
  font-size: 15px;
}
/* ====== PHẦN ĐỊA DANH NỔI BẬT ====== */
#destinations {
  background: linear-gradient(180deg, #f9fdff 0%, #ffffff 100%);
  padding: 80px 90px;
  border-radius: 30px;
  margin: 70px auto;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.05);
}

#destinations .intro h2 {
  font-family: 'Playfair Display', serif;
  font-size: 34px;
  color: #0a3d62;
  margin-bottom: 15px;
}

#destinations .intro p {
  color: #444;
  max-width: 850px;
  margin: 0 auto 50px;
  font-size: 17px;
  line-height: 1.7;
}

/* CARD ĐỊA DANH */
#destinations .destinations {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 35px;
}

#destinations .card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  width: 340px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#destinations .card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

#destinations .card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-bottom: 4px solid #1eb2a6;
}

#destinations .card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: #0a3d62;
  margin: 18px;
}

#destinations .card p {
  font-size: 15px;
  color: #333;
  margin: 0 18px 25px;
  text-align: justify;
}

.btn-card {
  display: inline-block;
  margin: 0 0 25px 18px;
  padding: 10px 22px;
  background: #1eb2a6;
  color: white;
  border-radius: 25px;
  font-size: 15px;
  text-decoration: none;
  transition: 0.3s ease;
}

.btn-card:hover {
  background: #148b83;
  transform: translateY(-2px);
}

/* ====== PHẦN ĐÁNG TRẢI NGHIỆM ====== */
.experience {
  background: #f4f7fb;
  padding: 80px 90px;
  text-align: center;
}

.experience h2 {
  font-family: 'Playfair Display', serif;
  font-size: 32px;
  color: #0a3d62;
  margin-bottom: 15px;
}

.experience p {
  color: #444;
  font-size: 17px;
  max-width: 800px;
  margin: 0 auto 50px;
}

.exp-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 35px;
}

.exp-item {
  background: #fff;
  border-radius: 15px;
  width: 340px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  overflow: hidden;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.exp-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.exp-item img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.exp-item h3 {
  font-family: 'Playfair Display', serif;
  color: #0a3d62;
  margin: 15px;
  font-size: 18px;
}

.exp-item p {
  color: #333;
  font-size: 15px;
  margin: 0 15px 20px;
  text-align: justify;
}
/* ===== PHẦN MẠNG XÃ HỘI ===== */
.social-links {
  margin-top: 25px;
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: #e0f0ff;
  color: #0a3d62;
  font-size: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.social-links a:hover {
  background: #0a3d62;
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}



/* FOOTER */
#footer {
  background-color: #0a3d62;
  color: #daf9ff;
  text-align: center;
  padding: 25px 0;
  font-size: 14px;
}