* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", Arial, sans-serif;
}

body {
  background: #0d0d0d;
  color: #f5f5f5;
}

header {
  background: #121212;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid #222;
}

.logo {
  font-family: "Playfair Display", serif;
  font-size: 45px;
  color: #d4af37;
  font-weight: bold;
  letter-spacing: 2px;
}

.logo-box {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  min-width: 250px;
}

.hotline {
  color: #888;
  font-size: 14px;
  margin-top: 2px;
  letter-spacing: 1px;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  gap: 30px;
}

.search-box {
  display: flex;
  width: 100%;
  max-width: 450px;
  flex: 1;
}

.search-box input {
  flex: 1;
  padding: 12px 20px;
  border: 1px solid #333;
  border-right: none;
  background: #1a1a1a;
  color: #fff;
  border-radius: 30px 0 0 30px;
  outline: none;
  min-width: 0;
  transition: 0.3s;
}

.search-box input:focus {
  border-color: #d4af37;
}

.search-box button {
  padding: 12px 25px;
  border: none;
  background: #d4af37;
  color: #000;
  font-weight: bold;
  border-radius: 0 30px 30px 0;
  cursor: pointer;
  transition: 0.3s;
}

.search-box button:hover {
  background: #bfa030;
}

.gio-hang {
  width: 100%;
  max-width: 900px;
  margin: 40px auto;
  background: #121212;
  padding: 50px;
  border-radius: 12px;
  border: 1px solid #222;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.gio-hang button {
  margin-top: 20px;
  padding: 18px 35px;
  border: 1px solid #d4af37;
  background: transparent;
  color: #d4af37;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 1px;
  border-radius: 4px;
  cursor: pointer;
  transition: 0.3s;
}

.gio-hang button:hover {
  background: #d4af37;
  color: #000;
}

.giohang {
  text-decoration: none;
  color: #d4af37;
  flex-shrink: 0;
  text-align: right;
  min-width: 60px;
  font-weight: bold;
}

nav {
  text-align: center;
  padding: 15px;
  background: #161616;
  border-top: 1px solid #222;
}

nav a {
  text-decoration: none;
  margin: 0 40px;
  color: #aaa;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 13px;
  transition: 0.3s;
}

nav a:hover {
  color: #d4af37;
}

.banner {
  background:
    linear-gradient(rgba(0, 0, 0, 0.2), rgba(13, 13, 13, 1)),
    url("img/banner.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 650px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: white;
}

.btn-banner {
  padding: 15px 40px;
  border: 1px solid #d4af37;
  background: #d4af37;
  color: #000;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: 0.3s;
}

.btn-banner:hover {
  background: transparent;
  color: #d4af37;
  transform: translateY(-3px);
}

.overlay h2 {
  font-size: 65px;
  margin-bottom: 25px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.8);
}

.overlay p {
  font-size: 20px;
  color: #ccc;
  margin-bottom: 35px;
  letter-spacing: 1px;
}

.trend {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 40px;
  flex-wrap: wrap;
}

.trend-box {
  background: #121212;
  color: #fff;
  border: 1px solid #222;
  padding: 20px 35px;
  border-radius: 4px;
  font-weight: bold;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 14px;
  transition: 0.3s;
}

.trend-box:hover {
  border-color: #d4af37;
  color: #d4af37;
  transform: translateY(-5px);
}

.tieude {
  text-align: center;
  margin: 60px 0 20px 0;
  color: #fff;
  font-size: 38px;
  font-family: "Playfair Display", serif;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.sanpham {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  padding: 40px;
}

.sp {
  background: #121212;
  border: 1px solid #222;
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
  transition: 0.4s ease;
}

.sp:hover {
  transform: translateY(-10px);
  border-color: #d4af37;
  box-shadow: 0 10px 30px rgba(212, 175, 55, 0.1);
}

.sp img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: 0.5s;
}

.sp img:hover {
  transform: scale(1.05);
}

.sp h3 {
  margin: 20px 0 10px 0;
  color: #fff;
  font-size: 20px;
  letter-spacing: 1px;
}

.sp p {
  color: #d4af37;
  font-weight: bold;
  font-size: 18px;
  margin-bottom: 20px;
}

.sp button {
  margin-bottom: 25px;
  padding: 12px 28px;
  border: 1px solid #333;
  background: transparent;
  color: #fff;
  font-weight: bold;
  letter-spacing: 1px;
  font-size: 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: 0.3s;
}

.sp button:hover {
  background: #fff;
  color: #000;
  border-color: #fff;
  text-transform: uppercase;
}

footer {
  background: #050505;
  color: #888;
  padding: 80px 40px 40px 40px;
  margin-top: 80px;
  border-top: 1px solid #1a1a1a;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-col {
  flex: 1;
  min-width: 250px;
  text-align: left;
}

.footer-col h3 {
  color: #fff;
  font-size: 18px;
  margin-bottom: 25px;
  position: relative;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 30px;
  height: 2px;
  background-color: #d4af37;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.8;
  margin: 12px 0;
  color: #aaa;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 15px;
}

.social-links a {
  text-decoration: none;
  color: #aaa;
  font-size: 14px;
  transition: 0.3s;
  display: inline-block;
}

.social-links a:hover {
  color: #d4af37;
  transform: translateX(5px);
}

.copyright {
  margin-top: 50px !important;
  font-size: 12px !important;
  color: #444 !important;
  text-align: center;
  border-top: 1px solid #111;
  padding-top: 20px;
}

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    gap: 30px;
  }

  .footer-col {
    text-align: center;
  }

  .footer-col h3::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .social-links {
    align-items: center;
  }

  .top {
    flex-direction: column;
    gap: 20px;
    padding: 20px;
  }

  .search-box {
    width: 100%;
  }

  .overlay h2 {
    font-size: 36px;
  }
}

.contact-wrapper {
  padding: 80px 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.contact-container {
  max-width: 1100px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #121212;
  border-radius: 12px;
  border: 1px solid #222;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.contact-info {
  background: #161616;
  color: white;
  padding: 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid #222;
}

.contact-info h2 {
  font-size: 32px;
  margin-bottom: 15px;
  font-family: "Playfair Display", serif;
  color: #d4af37;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-subtitle {
  color: #888;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 35px;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 20px;
}

.info-item i {
  font-size: 20px;
  color: #d4af37;
  width: 30px;
  text-align: center;
}

.info-item h3 {
  font-size: 14px;
  margin-bottom: 3px;
  color: #d4af37;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.info-item p {
  font-size: 14px;
  color: #ccc;
}

.contact-form-box {
  padding: 50px;
  background: #121212;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-form-box h3 {
  font-size: 22px;
  color: #fff;
  margin-bottom: 30px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-form-box form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-group i {
  position: absolute;
  left: 15px;
  color: #666;
  font-size: 16px;
}
.input-group input,
.input-group textarea {
  width: 100%;
  padding: 14px 15px 14px 45px;
  border: 1px solid #222;
  border-radius: 4px;
  outline: none;
  font-size: 14px;
  background-color: #1a1a1a;
  color: #fff;
  transition: 0.3s ease;
}

.input-group input:focus,
.input-group textarea:focus {
  border-color: #d4af37;
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.1);
}

.text-area-group i {
  top: 18px;
}

.input-group textarea {
  height: 120px;
  resize: none;
}

.btn-submit-contact {
  background: #d4af37;
  color: #000;
  padding: 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: 0.3s;
  margin-top: 10px;
}

.btn-submit-contact:hover {
  background: #fff;
  color: #000;
  transform: translateY(-2px);
}