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

body {
  background: #0b1220;
  color: #fff;
}

/* ===== HEADER ===== */
header {
  background: #0f1b2d;
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 22px;
  font-weight: bold;
  color: #4da3ff;
}

nav a {
  margin-left: 15px;
  padding: 8px 14px;
  background: #1b2f4d;
  border-radius: 6px;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
}

nav a:hover {
  background: #274066;
}

/* ===== PRODUCTS ===== */
.products {
  display: flex;
  justify-content: center;
  gap: 25px;
  padding: 60px 20px;
}

.card {
  background: #0f1b2d;
  width: 260px;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}

.card img {
  width: 100%;
  height: 150px;
  object-fit: contain;
}

.card h3 {
  margin: 15px 0 5px;
}

.card p {
  font-size: 14px;
  opacity: 0.8;
}

.card button {
  margin-top: 12px;
  width: 100%;
  padding: 10px;
  background: #1b5cff;
  border: none;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
}

/* ===== CART ===== */
.cart {
  max-width: 600px;
  margin: 60px auto;
  background: #0f1b2d;
  padding: 25px;
  border-radius: 12px;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 15px;
}

/* ===== PAYMENT ===== */
.payment {
  max-width: 400px;
  margin: 80px auto;
  background: #0f1b2d;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
}

.pay-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 50px;
  margin-top: 15px;
  border-radius: 8px;
  cursor: pointer;
}

.pay-apple {
  background: #000;
}

.pay-google {
  background: #fff;
  color: #000;
}

.pay-btn img {
  height: 24px;
}

/* ===== FORMS ===== */
.form {
  max-width: 350px;
  margin: 80px auto;
  background: #0f1b2d;
  padding: 25px;
  border-radius: 12px;
}

.form input {
  width: 100%;
  padding: 10px;
  margin-bottom: 12px;
  border-radius: 6px;
  border: none;
}

.form button {
  width: 100%;
  padding: 10px;
  background: #1b5cff;
  border: none;
  border-radius: 6px;
  color: #fff;
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 20px;
  opacity: 0.6;
}