/* Basic Reset */
*, *::before, *::after {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  background: #f9f9f9;
  color: #333;
}
body {
  max-width: 60rem;
  margin: 2rem auto;
  padding: 1rem;
}
/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.5em;
  font-weight: 600;
  line-height: 1.2;
}
p {
  margin-bottom: 1em;
}
/* Links */
a {
  color: #007acc;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
/* Navigation */
nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1rem;
}
nav a {
  padding: 0.5rem;
  border-radius: 4px;
}
nav a:hover {
  background-color: rgba(0, 122, 204, 0.1);
}
/* Buttons */
button, input[type="button"], input[type="submit"] {
  padding: 0.5em 1em;
  border: none;
  border-radius: 4px;
  background-color: #007acc;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
button:hover, input[type="button"]:hover, input[type="submit"]:hover {
  background-color: #005fa3;
}
button:active, input[type="button"]:active, input[type="submit"]:active {
  transform: scale(0.95);
  box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.2);
}
/* Form elements */
input, textarea, select {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}
/* Cards / Sections */
.card {
  background: #fff;
  padding: 1rem;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin-bottom: 1.5rem;
}
/* Footer */
footer {
  text-align: center;
  font-size: 0.9rem;
  color: #666;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #eaeaea;
}