body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #0a0a0a;
  color: #fff;
  text-align: center;
}

header {
  background: #111;
  padding: 10px;
  border: #111 1px solid;
}
header img {
  width: 140px;
}

.hero {
  background: linear-gradient(to right, #ff0000, #111);
  padding: 60px 20px;
}
.hero .btn {
  display: inline-block;
  background: #ff0000;
  color: #fff;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
  box-shadow: 2px 6px 10px rgba(243, 11, 11, 0.945);
}
.hero .btn:hover {
  background: #cc0000;
  transform: scale(1.1);
}

.cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.card {
  background: #1a1a1a;
  padding: 20px;
  border-radius: 10px;
  width: 250px;
  transition: 0.3s;
  border:#fff 1px solid;
  animation: alternateCard 1s infinite alternate;
  box-shadow: 2px 6px 10px rgba(247, 246, 246, 0.945);
}
.card:hover {
  background: #333;
  transform: translateY(-10px);
}

.form-section {
  background: #111;
  padding: 40px 20px;
}
form input {
  padding: 10px;
  margin: 10px;
  width: 250px;
  border-radius: 6px;
  border: none;
}
form .btn {
  background: #ff0000;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
  box-shadow: 2px 6px 10px rgba(243, 11, 11, 0.945);
}
form .btn:hover {
  background: #cc0000;
  transform: scale(1.1);
}

footer {
  background: #000;
  padding: 20px;
  font-size: 14px;
  border-top: #111 1px solid;
}

@keyframes alternateCard {
  0% {
    box-shadow: 2px 6px 10px rgba(247, 246, 246, 0.945);
  }
  100% {
    box-shadow: 4px 8px 15px rgba(247, 246, 246, 0.945);
  }
}

@media (max-width: 600px) {
  .cards {
    flex-direction: column;
    align-items: center;
  }
}

h1, h2, h3 {
  color: #ff4444;
}

a {
  color: #ff4444;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

p {
  line-height: 1.6;
}

button {
  background: #ff0000;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
  box-shadow: 2px 6px 10px rgba(243, 11, 11, 0.945);
}

button:hover {
  background: #cc0000;
  transform: scale(1.1);
}

input[type="text"], input[type="email"], input[type="password"] {
  background: #222;
  color: #fff;
  border: #444 1px solid;
}

input[type="text"]::placeholder, input[type="email"]::placeholder, input[type="password"]::placeholder {
  color: #888;
}


img {
  max-width: 100%;
  height: auto;

}

.flutuar {
    animation: flutuar 3s ease-in-out infinite;
}

@keyframes flutuar {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0);
    }
}



nav {
  background: #111;
  padding: 10px;
  border-bottom: #222 1px solid;
}

.carrossel-sm {
    text-align: center;
    max-width: 260px;
    margin: auto;
    padding: 20px 0;
}

.carrossel-sm h3 {
    font-size: 10px;
    margin-bottom: 10px;
}

.carrossel-sm-container {
    position: relative;
    height: 100px;
    overflow: hidden;

}

.sm-slide {
    display: none;
    padding: 12px;
    background: #eb1515;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(241, 3, 3, 0.89);
    font-size: 14px;
    border: #ff0000 2px solid;
    cursor: pointer;
}

.sm-slide span {
    display: block;
    margin-top: 8px;
    font-weight: bold;
    font-size: 13px;
}

.sm-slide.ativo {
    display: block;
}

.sm-botoes button {
    margin: 10px 5px;
    padding: 6px 10px;
    border: none;
    background: #444;
    color: #e21919;
    border-radius: 6px;
    cursor: pointer;
}