body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background-color: #0b1220;
  color: #e6edf3;
  line-height: 1.6;
}

.home-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  background: #020617;
  border: 1px solid #334155;
  color: #38bdf8;
  padding: 6px 12px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.9rem;
}

.home-btn:hover {
  background: #111827;
}

.next-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #020617;
  border: 1px solid #334155;
  color: #38bdf8;
  padding: 8px 14px;
  border-radius: 6px;
  text-decoration: none;
}

.next-btn:hover {
  background: #111827;
}

nav {
  text-align: center;
}

ul.map {
  display: inline-block;          
  background: #111827;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 1.5rem 2rem;
  margin: 1.5rem auto;
  font-size:large;
  font-family:monospace;
  text-align: left;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.1);              
}


ul.map li {
  margin: 0.5rem 0;
}

main,
.topic,
.body,
article {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

@media (max-width: 768px) {
  main,
  .topic,
  .body,
  article {
    padding: 1rem;
  }
}

h1 {
  text-align: center; 
  color: #38bdf8;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

h2, h3 {
  text-align: left;
  color: #7dd3fc;
  margin-top: 2rem;
}

p {
  text-align: left;
  color: #cbd5f5;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: #111827; 
  border: 1px solid #334155; 
  border-radius: 6px;
  overflow: hidden;
}

th {
  background: #020617;
  color: #38bdf8;
  padding: 10px;
  border: 1px solid #334155;
  text-align: center;
}

td {
  padding: 10px;
  border: 1px solid #334155;
  color: #cbd5f5;
}

pre {
  background: #020617;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: 6px;
  border: 1px solid #334155;
  overflow-x: auto;
  margin: 1.5rem 0;
}

code {
  background: #1e293b;
  color: #38bdf8;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "Fira Code", monospace;
}

pre code {
  background: none;
  color: inherit;
  padding: 0;
  border-radius: 0;
}

.note {
  background: #111827;
  border-left: 4px solid #38bdf8;
  padding: 1rem;
  margin: 1.5rem 0;
  border-radius: 6px;
}

ul, ol {
  padding-left: 1.5rem;
}

li {
  margin: 0.4rem 0;
}

a {
  color: #38bdf8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.postman-section {
  max-width: 700px;
  margin: 2rem auto;
  text-align: center;
}

.postman-links {
  margin: 1rem 0;
}

.postman-links a {
  display: inline-block;
  margin: 0.5rem;
  padding: 8px 14px;
  background: #020617;
  border: 1px solid #334155;
  border-radius: 6px;
  color: #38bdf8;
  text-decoration: none;
}

.postman-links a:hover {
  background: #111827;
}