* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: 'JetBrains Mono', monospace;
  max-width: 960px;
  margin: 3rem auto;
  padding: 0 1.5rem;
  line-height: 1.7;
  color: #1a1a1a;
}

h2 {
  margin-top: 3rem;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }

p {
  margin-bottom: 1rem;
}

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

a {
  color: #1a1a1a;
  text-decoration: none;
  border-bottom: 1px solid #ccc;
  word-break: break-word;
  overflow-wrap: break-word;
}

a:hover {
  border-bottom-color: #1a1a1a;
}

code {
  background: #f5f5f5;
  padding: 0.15rem 0.35rem;
  font-size: 0.9em;
}

pre {
  background: #f5f5f5;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

pre code {
  background: none;
  padding: 0;
}

.katex-display {
  margin: 1.5rem 0;
  overflow-x: auto;
  overflow-y: hidden;
}

@media (max-width: 600px) {
  .katex-display {
    font-size: 0.8em;
  }
}

blockquote {
  border-left: 3px solid #ccc;
  padding-left: 1rem;
  margin: 1rem 0;
  color: #555;
}

hr {
  border: none;
  border-top: 1.8px solid #c8c8c8;
  margin: 2rem 0;
}

a.back {
  font-size: 0.9rem;
  border-bottom: none;
}

a.back:hover {
  border-bottom: none;
}

.important {
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  padding: 1rem;
  margin: 1.5rem 0;
  border-radius: 4px;
}

.note {
  background: #e8f4fd;
  border-left: 4px solid #07f3ff;
  padding: 1rem;
  margin: 1.5rem 0;
  border-radius: 4px;
}

img {
  max-width: 100%;
  height: auto;
}

.image-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.source {
  font-size: 0.85rem;
  color: #666;
  margin-top: 2rem;
  border-top: 1px solid #eee;
  padding-top: 0.5rem;
}

.site-header {
  margin-bottom: 2rem;
}

.site-title {
  font-size: 2rem;
  font-weight: 700;
}

.site-subtitle {
  font-size: 1rem;
  opacity: 0.8;
  margin-top: 0.25rem;
}

.toc-title {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.toc-note {
  margin-top: 0;
  font-size: 0.75em;
  margin-bottom: 2rem;
  opacity: 0.7;
}

table {
  border-collapse: collapse;
  width: 100%;
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

th,
td {
  border: 1px solid black;
  padding: 12px 12px;
  vertical-align: top;
}

th:first-child,
td:first-child {
  padding-left: 18px;
  padding-right: 18px;
  min-width: 320px;
}

.activation-table th:first-child,
.activation-table td:first-child {
  min-width: 140px;
}

.activation-table th:nth-child(2),
.activation-table td:nth-child(2) {
  min-width: 220px;
}

.activation-image-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 84px;
  color: #666;
}

.figure-pair {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.figure-pair > div {
  flex: 1;
  max-width: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.figure-pair img {
  width: 100%;
  height: 250px;
  object-fit: contain;
}

.figure-pair .source {
  margin-top: 0.5rem;
  border-top: none;
  padding-top: 0;
}

@media (max-width: 600px) {
  body {
    margin: 1.5rem auto;
    padding: 0 1rem;
  }

  h1 { font-size: 1.25rem; }
  h2 { font-size: 1.1rem; }
  h3 { font-size: 1rem; }

  .figure-pair {
    flex-direction: column;
  }

  .figure-pair > div {
    max-width: 100%;
  }

  .figure-pair img {
    height: auto;
  }

  th:first-child,
  td:first-child {
    min-width: auto;
  }

  .activation-table th,
  .activation-table td {
    min-width: 0;
  }
}