/* Ion SSG Default Theme */
:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-link: #0066cc;
  --color-link-hover: #004499;
  --color-border: #e0e0e0;
  --color-muted: #666666;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Consolas', monospace;
  --max-width: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1a1a1a;
    --color-text: #e0e0e0;
    --color-link: #66b3ff;
    --color-link-hover: #99ccff;
    --color-border: #333333;
    --color-muted: #999999;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
  background: #1a1a1a;
}

.site-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-header nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
}

.site-header nav a,
.site-header nav ul li a {
  color: #e0e0e0;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.site-header nav a:hover,
.site-header nav ul li a:hover {
  color: #66b3ff;
  text-decoration: none;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  color: #e0e0e0;
}

main {
  padding: 2rem 0;
  min-height: calc(100vh - 200px);
}

footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.875rem;
}

h1, h2, h3, h4, h5, h6 {
  margin: 1.5rem 0 0.5rem;
  line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

a {
  color: var(--color-link);
  text-decoration: none;
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

article {
  margin-bottom: 2rem;
}

.post-card {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.post-card:last-child {
  border-bottom: none;
}

.post-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.post-card time {
  color: var(--color-muted);
  font-size: 0.875rem;
}

.excerpt {
  margin: 0.5rem 0;
  color: var(--color-muted);
}

/* Hero image */
.hero-image-wrapper {
  position: relative;
  margin-bottom: 2rem;
}

.page .content > p:first-child img,
.hero-image-wrapper img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: 8px;
}

.fullscreen-btn {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.fullscreen-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}

/* Fullscreen overlay */
.fullscreen-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.fullscreen-overlay img {
  max-width: 95%;
  max-height: 95%;
  object-fit: contain;
}

.fullscreen-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: white;
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.5rem;
}

.fullscreen-close:hover {
  color: #ccc;
}

/* Recent posts grid */
.recent-posts {
  margin-top: 2rem;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (max-width: 600px) {
  .posts-grid {
    grid-template-columns: 1fr;
  }
}

.posts-grid .post-card {
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.posts-grid .post-card:hover {
  border-color: var(--color-link);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.post-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.post-card-link:hover {
  text-decoration: none;
}

.posts-grid .post-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--color-text);
}

.post-excerpt {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.tags {
  margin-top: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  margin-right: 0.25rem;
  font-size: 0.75rem;
  background: var(--color-border);
  border-radius: 3px;
  color: var(--color-muted);
}

.taxonomy-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.taxonomy-item {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--color-border);
  border-radius: 4px;
  font-size: 0.875rem;
}

.taxonomy-item .count {
  color: var(--color-muted);
  font-size: 0.75rem;
}

.content {
  margin-top: 1rem;
}

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

.content pre {
  background: var(--color-border);
  padding: 1rem;
  overflow-x: auto;
  border-radius: 4px;
}

.content code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.content blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--color-border);
  color: var(--color-muted);
}

/* Post navigation */
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.post-nav-prev,
.post-nav-next {
  max-width: 45%;
}

.post-nav-next {
  text-align: right;
  margin-left: auto;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.pagination-pages {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.pagination-current {
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  background: var(--color-link);
  color: var(--color-bg);
  border-radius: 3px;
}

.pagination a {
  padding: 0.25rem 0.5rem;
}

/* Table of Contents */
.toc {
  background: var(--color-border);
  padding: 1rem;
  margin-bottom: 1.5rem;
  border-radius: 4px;
}

.toc-title {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.toc-list {
  margin: 0;
  padding-left: 1.5rem;
}

.toc-list ul {
  padding-left: 1rem;
}

.toc-list li {
  margin: 0.25rem 0;
}

/* Syntax highlighting (Chroma classes) */
.chroma {
  background: #272822;
  border-radius: 4px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.875rem;
}

.chroma .lnt {
  color: #666;
  margin-right: 0.75em;
  user-select: none;
}

/* Monokai theme colors */
.chroma .err { color: #960050; background-color: #1e0010 }
.chroma .lntd { vertical-align: top; padding: 0; margin: 0; border: 0; }
.chroma .lntable { border-spacing: 0; padding: 0; margin: 0; border: 0; }
.chroma .hl { background-color: #3c3d38 }
.chroma .ln { color: #7f7f7f; margin-right: 0.4em; padding: 0 0.4em 0 0.4em; }
.chroma .k { color: #66d9ef } /* Keyword */
.chroma .kc { color: #66d9ef } /* KeywordConstant */
.chroma .kd { color: #66d9ef } /* KeywordDeclaration */
.chroma .kn { color: #f92672 } /* KeywordNamespace */
.chroma .kp { color: #66d9ef } /* KeywordPseudo */
.chroma .kr { color: #66d9ef } /* KeywordReserved */
.chroma .kt { color: #66d9ef } /* KeywordType */
.chroma .na { color: #a6e22e } /* NameAttribute */
.chroma .nb { color: #f8f8f2 } /* NameBuiltin */
.chroma .nc { color: #a6e22e } /* NameClass */
.chroma .no { color: #66d9ef } /* NameConstant */
.chroma .nd { color: #a6e22e } /* NameDecorator */
.chroma .ni { color: #f8f8f2 } /* NameEntity */
.chroma .ne { color: #a6e22e } /* NameException */
.chroma .nf { color: #a6e22e } /* NameFunction */
.chroma .nl { color: #f8f8f2 } /* NameLabel */
.chroma .nn { color: #f8f8f2 } /* NameNamespace */
.chroma .nx { color: #a6e22e } /* NameOther */
.chroma .py { color: #f8f8f2 } /* NameProperty */
.chroma .nt { color: #f92672 } /* NameTag */
.chroma .nv { color: #f8f8f2 } /* NameVariable */
.chroma .ow { color: #f92672 } /* OperatorWord */
.chroma .w { color: #f8f8f2 } /* TextWhitespace */
.chroma .mb { color: #ae81ff } /* LiteralNumberBin */
.chroma .mf { color: #ae81ff } /* LiteralNumberFloat */
.chroma .mh { color: #ae81ff } /* LiteralNumberHex */
.chroma .mi { color: #ae81ff } /* LiteralNumberInteger */
.chroma .mo { color: #ae81ff } /* LiteralNumberOct */
.chroma .sa { color: #e6db74 } /* LiteralStringAffix */
.chroma .sb { color: #e6db74 } /* LiteralStringBacktick */
.chroma .sc { color: #e6db74 } /* LiteralStringChar */
.chroma .dl { color: #e6db74 } /* LiteralStringDelimiter */
.chroma .sd { color: #e6db74 } /* LiteralStringDoc */
.chroma .s2 { color: #e6db74 } /* LiteralStringDouble */
.chroma .se { color: #ae81ff } /* LiteralStringEscape */
.chroma .sh { color: #e6db74 } /* LiteralStringHeredoc */
.chroma .si { color: #e6db74 } /* LiteralStringInterpol */
.chroma .sx { color: #e6db74 } /* LiteralStringOther */
.chroma .sr { color: #e6db74 } /* LiteralStringRegex */
.chroma .s1 { color: #e6db74 } /* LiteralStringSingle */
.chroma .ss { color: #e6db74 } /* LiteralStringSymbol */
.chroma .bp { color: #f8f8f2 } /* NameBuiltinPseudo */
.chroma .fm { color: #a6e22e } /* NameFunctionMagic */
.chroma .vc { color: #f8f8f2 } /* NameVariableClass */
.chroma .vg { color: #f8f8f2 } /* NameVariableGlobal */
.chroma .vi { color: #f8f8f2 } /* NameVariableInstance */
.chroma .vm { color: #f8f8f2 } /* NameVariableMagic */
.chroma .il { color: #ae81ff } /* LiteralNumberIntegerLong */
.chroma .s { color: #e6db74 } /* LiteralString */
.chroma .m { color: #ae81ff } /* LiteralNumber */
.chroma .c { color: #75715e } /* Comment */
.chroma .c1 { color: #75715e } /* CommentSingle */
.chroma .cm { color: #75715e } /* CommentMultiline */
.chroma .cp { color: #75715e } /* CommentPreproc */
.chroma .cpf { color: #75715e } /* CommentPreprocFile */
.chroma .cs { color: #75715e } /* CommentSpecial */
.chroma .o { color: #f92672 } /* Operator */
.chroma .p { color: #f8f8f2 } /* Punctuation */
.chroma .ge { font-style: italic } /* GenericEmph */
.chroma .gs { font-weight: bold } /* GenericStrong */