/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}
.arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 45px;
  color: white;
  opacity: 0.4;
  transition: 0.3s;
  pointer-events: auto;
}

.arrow:hover {
  opacity: 1;
  transform: translateY(-50%) scale(1.2);
}

.left { left: 25px; }
.right { right: 25px; }
/* NAVBAR */
.navbar {
  position: fixed;
  width: 100%;
  top: 0;
  display: flex;
  justify-content: space-between;
  padding: 20px;
  background: white;
  z-index: 1000;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 20px;
}

.nav-links a {
  text-decoration: none;
  color: black;
}

/* HERO */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  background-size: cover;
  background-position: center;
}

/* ensures overlay sits above background but below text if needed */
.hero-ui {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 60px;
  margin-bottom: 10px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 20px;
  opacity: 0.9;
}
.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: white;
  opacity: 0.3;
  transition: all 0.25s ease;
  cursor: pointer;
}

/* hover effect */
.hero-dots span:hover {
  opacity: 1;
  transform: scale(1.5);
}
/* BUTTONS */
.btn {
  padding: 12px 25px;
  border: none;
  cursor: pointer;
  margin: 5px;
  transition: 0.3s;
  border-radius: 20px;
}

.primary {
  background: white;
  color: black;
}

.secondary {
  background: transparent;
  border: 1px solid white;
  color: white;
}

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

/* MODELS */
.models {
  padding: 80px 20px;
  text-align: center;
}

.model-grid {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.card {
  width: 220px;
  transition: 0.3s;
}

.card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 10px;
}

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

/* FOOTER */
footer {
  background: #f5f5f5;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 10px;
}

.footer-links a {
  text-decoration: none;
  color: black;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 35px;
  }

  .model-grid {
    flex-direction: column;
    align-items: center;
  }
}