@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-family: 'Playfair Display', serif;
  letter-spacing: 1px;
  font-size: 22px;
}

/* ===== MENU ===== */
#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;
  }
}

@keyframes fadeSlide {
  from {opacity: 0; transform: translateY(-20px);}
  to {opacity: 1; transform: translateY(0);}
}

/* ===== BANNER ===== */
#banner {
  position: relative;
  width: 100%;
  height: 600px;
  overflow: hidden;
}

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

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

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

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

.banner-text p {
  font-size: 20px;
  margin-top: 15px;
}
.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);
}


/* ===== INTRO ===== */
.intro {
  text-align: center;
  padding: 80px 60px;
  background: linear-gradient(135deg, #eaf5ff, #ffffff);
  border-radius: 25px;
  margin: 60px auto;
  max-width: 1000px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

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

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

.intro p {
  font-size: 18px;
  color: #333;
  line-height: 1.8;
}

/* ===== 3 MIỀN ===== */

/* ================== CONTENT STYLE ================== */
#content {
  background-color: #eaf4fb; /* xanh dương nhạt */
  padding: 60px 0;
}

.region {
  margin: 60px auto;
  width: 90%;
  max-width: 1200px;
}

.region h2 {
  text-align: center;
  color: #005fa3;
  margin-bottom: 30px;
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.destinations {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* ======== CARD ======== */
.card {
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-decoration: none;
  color: #333;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 95, 163, 0.2);
}

.card img {
  width: 45%;
  height: 250px;
  object-fit: cover;
}

.card h3 {
  font-size: 1.6rem;
  color: #004f91;
  margin-bottom: 10px;
}

.card p {
  font-size: 1rem;
  color: #555;
  line-height: 1.6;
}

.card div {
  padding: 25px;
  width: 55%;
}
h3{
text-align: center;
color: #005fa3;
margin-bottom: 30px;
font-size: 2rem;
text-transform: uppercase;
letter-spacing: 1px;
}
/* ======== TỔNG HỢP – HƯƠNG VỊ VIỆT NAM (SÁNG TẠO) ======== */
.summary {
  position: relative;
  background: linear-gradient(135deg, #eaf4fb, #ffffff 70%);
  padding: 100px 60px;
  text-align: center;
  border-top: 3px solid #1e6091;
  border-bottom: 3px solid #1e6091;
  margin: 100px auto 80px auto;
  max-width: 1200px;
  border-radius: 25px;
  box-shadow: 0 12px 35px rgba(0, 95, 163, 0.15);
  overflow: hidden;
  animation: fadeInUp 1.2s ease;
}

/* Hiệu ứng ánh sáng di chuyển chậm */
.summary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: radial-gradient(circle at 20% 40%, rgba(255,255,255,0.4), transparent 60%);
  animation: moveLight 10s infinite linear;
}

@keyframes moveLight {
  0% { transform: translateX(-20%); }
  50% { transform: translateX(20%); }
  100% { transform: translateX(-20%); }
}

/* Tiêu đề */
.summary h2 {
  font-family: 'Playfair Display', serif;
  font-size: 38px;
  color: #004f91;
  margin-bottom: 25px;
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  z-index: 1;
}

.summary h2::after {
  content: "";
  display: block;
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, #1e6091, #1eb2a6);
  margin: 15px auto;
  border-radius: 3px;
  box-shadow: 0 0 8px rgba(30,178,166,0.6);
}

/* Nội dung mô tả */
.summary p {
  font-size: 18px;
  color: #2a2a2a;
  line-height: 1.9;
  max-width: 950px;
  margin: 0 auto;
  font-weight: 400;
  position: relative;
  z-index: 1;
}

/* Hiệu ứng nổi nhẹ khi rê chuột */
.summary:hover {
  transform: translateY(-6px);
  transition: all 0.5s ease;
  box-shadow: 0 18px 40px rgba(0, 95, 163, 0.25);
}

/* Đốm ánh sáng nhẹ phía sau */
.summary::after {
  content: "";
  position: absolute;
  bottom: -50px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(30,178,166,0.25), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .summary {
    padding: 60px 25px;
  }

  .summary h2 {
    font-size: 28px;
  }

  .summary p {
    font-size: 16px;
  }
}


/* Hiệu ứng mờ dần và trượt lên */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Giao diện cho điện thoại */
@media (max-width: 768px) {
  .summary {
    padding: 40px 20px;
  }

  .summary h2 {
    font-size: 22px;
  }

  .summary p {
    font-size: 16px;
  }
}


/* Hiệu ứng fade-in */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tăng hiệu ứng trên màn hình nhỏ */
@media (max-width: 768px) {
  .summary {
    padding: 40px 20px;
  }

  .summary h2 {
    font-size: 1.6rem;
  }

  .summary p {
    font-size: 1rem;
  }
}


/* ======= RESPONSIVE ======= */
@media (max-width: 900px) {
  .card {
    flex-direction: column;
  }

  .card img {
    width: 100%;
    height: 220px;
  }

  .card div {
    width: 100%;
    padding: 20px;
  }
}

/* ======= HIỆU ỨNG FADE IN ======= */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ======= HIỆU ỨNG HOVER CHUYỂN ĐỘNG ======= */
.card {
  position: relative;
  overflow: hidden;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

/* Khi rê chuột tới card */
.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 95, 163, 0.25);
}

/* Ảnh chuyển động mượt mà */
.card img {
  width: 45%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover img {
  transform: scale(1.08) rotate(-1deg);
}

/* Phần chữ trượt lên nhẹ khi hover */
.card div {
  padding: 25px;
  width: 55%;
  transition: transform 0.4s ease, color 0.4s ease;
}

.card:hover div {
  transform: translateY(-5px);
  color: #003f7d;
}

/* Hiệu ứng ánh sáng khi hover */
.card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.5) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-20deg);
  transition: left 0.8s ease;
}

.card:hover::after {
  left: 150%;
}




/* ===== FOOTER ===== */
#footer {
  background-color: #0a3d62;
  color: #daf9ff;
  text-align: center;
  padding: 25px 0;
  font-size: 14px;
  margin-top: 60px;
}