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

body {
  background-color: #f5f5f5;
}

/* navbar */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #333;
  color: white;
  padding: 15px 50px;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .logo {
  font-size: 24px;
  font-weight: bold;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-right: 20px;
}

nav ul li a {
  text-decoration: none;
  color: white;
  font-weight: bold;
  transition: transform 0.2s ease, color 0.2s ease;
}

nav ul li a:hover {
  color: #00bcd4;
  transform: scale(1.1);
}

.contato {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* banner */
.banner {
  background-color: #00bcd4;
  color: white;
  text-align: center;
  padding: 80px 20px;
}

.banner h1 {
  font-size: 48px;
  margin-bottom: 10px;
}

.banner p {
  font-size: 20px;
  margin-bottom: 20px;
}

.btn-banner {
  text-decoration: none;
  background-color: #fff;
  color: #00bcd4;
  padding: 10px 25px;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.btn-banner:hover {
  background-color: #f1f1f1;
}

/* produtos */
.produtos {
  padding: 50px;
  text-align: center;
}

.produtos h2 {
  margin-bottom: 30px;
  font-size: 36px;
  color: #333;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.card {
  background-color: white;
  padding: 20px;
  width: 250px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.card img {
  width: 100%;
  border-radius: 5px;
  margin-bottom: 15px;
}

.card h3 {
  margin-bottom: 10px;
  color: #333;
}

.card p {
  margin-bottom: 15px;
  font-weight: bold;
}

.card button {
  background-color: #00bcd4;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
}

.card button:hover {
  background-color: #0095a8;
}

/* rodape */
footer {
  background-color: #333;
  color: white;
  text-align: center;
  padding: 30px;
}

/* pop-up */
.popup-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  justify-content: center;
  align-items: center;
  z-index: 200;
}

.popup {
  background: white;
  padding: 25px;
  border-radius: 10px;
  width: 320px;
  text-align: center;
  box-shadow: 0px 5px 20px rgba(0,0,0,0.3);
}

.popup h2 {
  margin-bottom: 10px;
  color: #333;
}

.popup p {
  margin-bottom: 20px;
  font-weight: bold;
}

.close-btn {
  background: red;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
}

.close-btn:hover {
  background: darkred;
}