@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);
}
/* ===== NỘI DUNG LIÊN HỆ ===== */
#content {
  padding: 80px 100px;
  background: #fff;
}

/* BỐ CỤC 2 CỘT HIỆN ĐẠI */
.contact-container-modern {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 50px;
  flex-wrap: wrap;
  max-width: 1300px;
  margin: 0 auto;
}

/* ==== CỘT TRÁI ==== */
.contact-left-modern {
  flex: 1;
  min-width: 500px;
  background: linear-gradient(180deg, #ffffff, #e6f4ff);
  padding: 40px 35px;
  border-radius: 25px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-left-modern h2 {
  font-family: 'Playfair Display', serif;
  color: #0a3d62;
  font-size: 30px;
  margin-bottom: 20px;
}

.contact-card {
  background: #f2f8ff;
  border-left: 4px solid #1e6091;
  border-radius: 15px;
  padding: 20px 25px;
  margin-bottom: 25px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.contact-card h3 {
  color: #14496c;
  font-size: 18px;
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 15px;
  color: #333;
  line-height: 1.6;
}

.social-links-modern {
  display: flex;
  gap: 20px;
  margin-top: 10px;
}

.social-links-modern a img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  transition: 0.3s;
}

.social-links-modern a img:hover {
  transform: scale(1.1);
  box-shadow: 0 0 10px rgba(30,96,145,0.4);
}

.map-modern iframe {
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

/* ==== CỘT PHẢI ==== */
.contact-right-modern {
  flex: 1;
  min-width: 500px;
  background: linear-gradient(180deg, #ffffff, #eaf4ff);
  padding: 40px 35px;
  border-radius: 25px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-right-modern h2 {
  font-family: 'Playfair Display', serif;
  color: #0a3d62;
  font-size: 28px;
  margin-bottom: 20px;
}

.contact-form-modern {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group label {
  font-weight: 500;
  color: #14496c;
  margin-bottom: 5px;
  display: block;
}

.contact-form-modern input,
.contact-form-modern textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #cce4f9;
  border-radius: 10px;
  font-size: 15px;
  transition: all 0.3s ease;
}

.contact-form-modern input:focus,
.contact-form-modern textarea:focus {
  outline: none;
  border-color: #1e6091;
  box-shadow: 0 0 10px rgba(30,96,145,0.3);
}

.btn-modern {
  background: linear-gradient(90deg, #1e6091, #2f6b96);
  color: #fff;
  padding: 14px 32px;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-modern:hover {
  background: linear-gradient(90deg, #14496c, #1e6091);
  transform: translateY(-3px);
}




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