/* Core styling */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
  line-height: 1.6;
  color: #333;
  background: #fff;
}


/* Header */
header {
  margin-bottom: 1.5em;
}

header p {
  margin: 0;
  font-weight: bold;
}

/* Links */
a {
  color: #333;
  text-decoration: none;
  border-bottom: 1px solid #ccc;
}

a:hover {
  border-bottom-color: #333;
}

/* Main layout */
main {
  display: flex;
  gap: 4em;
}

/* Navigation */
nav {
  flex-shrink: 0;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

nav li {
  margin: 0.4em 0;
  font-weight: bold;
}

nav a {
  border-bottom: none;
}

nav a:hover {
  border-bottom: 1px solid #333;
}

nav .active a {
  border-bottom: 1px solid #333;
}

/* Content section */
.content {
  flex: 1;
  min-width: 0;
}

.content p:first-child {
  margin-top: 0;
}

/* ASCII molecule container */
#ascii-container {
  overflow: hidden;
}

#ascii-container table {
  margin: 0;
  border-collapse: collapse;
}

/* Paragraphs */
p {
  margin: 1em 0;
}

/* Responsive - stack on mobile */
@media (max-width: 600px) {
  body {
    margin: 20px auto;
  }

  main {
    flex-direction: column;
    gap: 2em;
  }
}

/* Gate - must be last to override */
#gate {
  padding-top: 100px;
}

body:not(.unlocked) header,
body:not(.unlocked) main {
  display: none !important;
}