:root {
  --primary-red: #d32f2f;
  --dark-red: #b71c1c;
  --leaf-green: #2e7d32;
  --light-green: #e8f5e9;
  --gold: #ffd700;
  --white: #ffffff;
  --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #fffaf0;
  color: #333;
  line-height: 1.6;
}

/* --- Navigation --- */
nav {
  background-color: var(--primary-red);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.nav-container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: var(--gold);
  font-size: 1.5rem;
  font-weight: bold;
  text-transform: uppercase;
  text-decoration: none;
}

.nav-links {
  list-style: none;
  display: flex;
}

.nav-links li {
  margin-left: 20px;
}

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
  padding: 5px 10px;
  border-radius: 5px;
}

.nav-links a:hover {
  background-color: var(--gold);
  color: var(--dark-red);
}

/* --- Banner --- */
.Banner {
  position: relative;
  background-color: white;
  margin: 20px;
  padding: 20px;
  border-radius: 20px;
  overflow: hidden;
}

.Banner img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.Banner h1 {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: yellow;
  font-size: 36px;
  text-align: center;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
}

.Banner_1 {
  position: relative;
  background-color: white;
  margin: 20px;
  padding: 50px;
  border-radius: 20px;
  overflow: hidden;
}

.Banner_1 h1 {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: yellow;
  font-size: 36px;
  text-align: center;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
}

.Banner_1 p {
  position: absolute;
  top: 80%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ffe600;
  font-size: 20px;
  text-align: center;
}

.Banner_2 img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.Banner_3 img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}
/* Đoạn mô tả */
.Banner p {
  position: absolute;
  top: 55%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ffe600;
  font-size: 20px;
  text-align: center;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
}
/* --- Main Content Layout --- */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 40px auto;
}

section {
  margin-bottom: 60px;
}

.section-title {
  text-align: center;
  color: var(--primary-red);
  margin-bottom: 30px;
  position: relative;
  padding-bottom: 10px;
}

.section-title::after {
  content: "";
  width: 100px;
  height: 3px;
  background: var(--leaf-green);
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

/* --- Grid System --- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background: var(--white);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-10px);
}

.card-img {
  height: 200px;
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 20px;
}

.btn-more {
  display: inline-block;
  padding: 8px 20px;
  background-color: var(--leaf-green);
  color: white;
  text-decoration: none;
  border-radius: 20px;
  margin-top: 10px;
}

/* --- Contact Form --- */
.contact-container {
  display: flex;
  gap: 40px;
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: var(--shadow);
}

.contact-form {
  flex: 1;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.btn-submit {
  background: var(--primary-red);
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 5px;
  cursor: pointer;
}

/* --- Footer --- */
footer {
  background-color: var(--dark-red);
  color: white;
  padding: 40px 0;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .contact-container {
    flex-direction: column;
  }
}

/* --- Video Section --- */
.video-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  padding: 20px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  text-align: center;
}

.video-wrapper video {
  width: 100%;
  border-radius: 15px;
  display: block;
}

.video-wrapper h3 {
  margin-top: 15px;
  color: var(--primary-red);
}

.video-wrapper video {
  transition: transform 0.4s ease;
}

.video-wrapper:hover video {
  transform: scale(1.02);
}