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

body {
  min-height: 100vh;
  background: #f2f4f8;
  display: flex;
  justify-content: center;
  padding: 20px;
}

/* Main wrapper */
.container {
  width: 100%;
  max-width: 600px;
  background: #ffffff;
  padding: 30px;
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

/* Headings */
h1, h2 {
  text-align: center;
  color: #222;
  margin-bottom: 15px;
}

/* Paragraphs */
p {
  background: #f8f9fa;
  padding: 12px;
  margin: 8px 0;
  border-radius: 8px;
  font-size: 16px;
  color: #444;
}

/* Special paragraph (Task 6) */
.text {
  font-size: 18px;
  background: #e3f2fd;
  color: #0d47a1;
  text-align: center;
  margin-top: 15px;
  font-weight: 600;
}

/* Buttons */
.btn {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  border: none;
  border-radius: 8px;
  background: #007bff;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

.btn:hover {
  background: #0056b3;
}

/* List */
ul {
  list-style: none;
  margin-top: 15px;
}

ul li {
  background: #f1f3f5;
  margin: 6px 0;
  padding: 10px;
  border-radius: 6px;
  color: #333;
}

/* Responsive */
@media (max-width: 480px) {
  .container {
    padding: 20px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 20px;
  }

  p, .text {
    font-size: 15px;
  }

  .btn {
    font-size: 15px;
  }
}