/* Base Reset & Typography */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Arial', sans-serif;
  background: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

/* Header */
header {
  background-color: #333;
  color: #fff;
  padding: 1rem;
  text-align: center;
}

nav {
  margin-top: 0.5rem;
}

nav a {
  color: #eee;
  margin: 0 0.75rem;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #ffffff;
}

/* Section Layout */
section {
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

/* Form Styles */
form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

form input,
form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  resize: vertical;
  font-size: 1rem;
}

form input:focus,
form textarea:focus {
  outline: none;
  border-color: #0066cc;
  box-shadow: 0 0 5px rgba(0, 102, 204, 0.3);
}

/* Button */
button {
  align-self: flex-start;
  padding: 0.75rem 1.5rem;
  background-color: #0066cc;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background-color: #004999;
}

/* Responsive Design */
@media (max-width: 768px) {
  section {
    padding: 1.5rem 1rem;
  }

  nav a {
    display: block;
    margin: 0.5rem 0;
  }

  button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  header {
    padding: 1rem 0.5rem;
  }

  form input,
  form textarea {
    font-size: 0.95rem;
  }
}