/* style.css - centralized styles for Computing by Syar Zinwai */
body {
  font-family: system-ui, sans-serif;
  background-color: #f3f4f6; /* Tailwind gray-100 */
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
}

header {
  background-color: #1d4ed8; /* Tailwind blue-700 */
  color: white;
  padding: 1rem 0;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

header nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: white;
}

header nav a:hover {
  text-decoration: underline;
}

main {
  flex-grow: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 1rem;
  text-align: center;
}

main h2 {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
}

main p {
  margin-bottom: 1rem;
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 768px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  background: white;
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  text-align: left;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.card a {
  color: #1d4ed8;
  text-decoration: none;
}

.card a:hover {
  text-decoration: underline;
}

footer {
  background-color: #111827; /* Tailwind gray-900 */
  color: white;
  text-align: center;
  padding: 1.5rem 0;
}

footer a {
  margin: 0 0.5rem;
  color: white;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

img.logo {
  width: 100px;
  height: 100px;
  border-radius: 9999px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  margin-right: 0.5rem;
}
.btn {
  display: inline-block;
  padding: 12px 24px;
  margin-top: 10px;
  font-size: 16px;
  font-weight: bold;
  color: #fff;
  background: linear-gradient(135deg, #4facfe, #00f2fe);
  border: none;
  border-radius: 50px;
  text-decoration: none;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  background: linear-gradient(135deg, #43e97b, #38f9d7);
}