* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

ul {
  list-style: none;
}

button, a.btn {
  display: block;
  width: 100%;
  max-width: -moz-max-content;
  max-width: max-content;
  margin: auto;
  margin-top: 20px;
  text-decoration: none;
  background-color: #3498db;
  color: white;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border: 2px solid #3498db;
  border-radius: 5px;
  transition: background-color 0.3s ease, color 0.3s ease;
}
button:hover, a.btn:hover {
  background-color: #fff;
  color: #3498db;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
  background: radial-gradient(circle at 25% 25%, #1e90ff, #00bfff, #87cefa, #4682b4) no-repeat;
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: #2c3e50;
  text-align: center;
}

@keyframes gradientBG {
  0% {
    background-position: 25% 25%;
  }
  50% {
    background-position: 75% 75%;
  }
  100% {
    background-position: 25% 25%;
  }
}
.container {
  max-width: 700px;
  margin: 0 auto;
  background: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-top: 5px solid #3498db;
}

h1 {
  color: #3498db;
  font-size: 24px;
  margin-bottom: 20px;
}

p {
  font-size: 16px;
  line-height: 1.6;
  color: #7f8c8d;
}

.logo {
  margin-bottom: 20px;
}

.logo img {
  max-width: 350px;
}

.mb-1 {
  margin-bottom: 1rem;
}

.mb-2 {
  margin-bottom: 2rem;
}

.mb-3 {
  margin-bottom: 3rem;
}

.mb-4 {
  margin-bottom: 4rem;
}

.mb-5 {
  margin-bottom: 5rem;
}

.mt-1 {
  margin-top: 1rem;
}

.mt-2 {
  margin-top: 2rem;
}

.mt-3 {
  margin-top: 3rem;
}

.mt-4 {
  margin-top: 4rem;
}

.mt-5 {
  margin-top: 5rem;
}