:root {
  --text-dark: #171414;
  --text-light: #ffffff;
  --accent: #d4af37;
  --bg-light: #f6f6f6;
  --bg-dark: #121212;
  --card-light: #ffffff;
  --card-dark: #1e1e1e;
}

body {
  margin: 0;
  font-family: "Poppins", sans-serif;
  background: var(--bg-light);
  color: var(--text-dark);
  transition: background 0.3s, color 0.3s;
}

.dark-mode {
  background: var(--bg-dark);
  color: var(--text-light);
}

nav {
  width: 100%;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  z-index: 99;
}

nav img {
  height: 55px;
  border-radius: 10px;
}

nav a {
  color: var(--text-light);
  margin: 0 15px;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: var(--accent);
}

.hero {
  height: 100vh;
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
  padding: 20px 60px;
}

.hero h1 {
  font-size: 3.5rem;
  letter-spacing: 2px;
  text-shadow: 0px 5px 30px rgba(0, 0, 0, 0.5);
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  line-height: 1.5;
}

.section {
  padding: 100px 60px;
  text-align: center;
}

.section h2 {
  font-size: 2.6rem;
  margin-bottom: 25px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  padding: 40px 20px;
}

.card {
  background: var(--card-light);
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s, background 0.3s;
}

.dark-mode .card {
  background: var(--card-dark);
}

.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card h3 {
  margin: 15px;
}

.card p {
  margin: 0 15px 15px 15px;
}

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

.btn {
  display: inline-block;
  padding: 12px 25px;
  margin: 10px 0 20px 0;
  background: var(--accent);
  color: var(--text-dark);
  border-radius: 5px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.3s;
}

.btn:hover {
  transform: scale(1.05);
}

footer {
  text-align: center;
  padding: 25px;
  background: var(--card-dark);
  color: var(--text-light);
  margin-top: 50px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 20px 30px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .section {
    padding: 60px 20px;
  }

  .card-grid {
    gap: 20px;
  }

  nav {
    padding: 15px 20px;
  }
}