/*
 * Structural placeholder stylesheet.
 * Replace the tokens and styles once the design from Claude Design is ready.
 */

/* ---------- Design tokens ---------- */
:root {
  color-scheme: light dark;
  --color-bg: #ffffff;
  --color-text: #1f2328;
  --color-muted: #59636e;
  --color-link: #0b57d0;
  --color-border: #d1d9e0;
  --color-code-bg: #f6f8fa;
  --color-focus: #0b57d0;

  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --text-sm: 0.875rem;
  --text-base: 1.0625rem;
  --text-lg: 1.25rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;

  --radius: 4px;
  --measure: 70ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0d1117;
    --color-text: #e6edf3;
    --color-muted: #9198a1;
    --color-link: #6cb6ff;
    --color-border: #3d444d;
    --color-code-bg: #151b23;
    --color-focus: #6cb6ff;
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0 auto;
  padding: var(--space-4) var(--space-3);
  max-width: calc(var(--measure) + 2 * var(--space-3));
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
}

a { color: var(--color-link); }
a:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }

h1, h2, h3, h4 { line-height: 1.25; }
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); margin-top: var(--space-5); }
h3 { font-size: var(--text-lg); }

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

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: var(--space-3); top: var(--space-3); background: var(--color-bg); padding: var(--space-2); }

/* ---------- Layout ---------- */
.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.site-title { font-weight: 700; text-decoration: none; color: var(--color-text); }
.site-header ul, .site-footer ul, .tags, .links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-header [aria-current="page"] { font-weight: 700; }

.site-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

/* ---------- Lists ---------- */
.post-list, .project-list, .resource-list { list-style: none; padding: 0; }
.post-list li, .project-list li, .resource-list li { margin-bottom: var(--space-4); }
.post-list p, .project-list p, .resource-list p { margin: var(--space-1) 0 0; }
.post-list time { display: block; color: var(--color-muted); font-size: var(--text-sm); }

.meta { color: var(--color-muted); font-size: var(--text-sm); }
.tags { font-size: var(--text-sm); }
.badge, .status {
  display: inline-block;
  padding: 0 var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* ---------- Prose (rendered Markdown) ---------- */
.prose blockquote {
  margin: var(--space-4) 0;
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-border);
  color: var(--color-muted);
}
.prose code { font-family: var(--font-mono); font-size: 0.9em; }
.prose :not(pre) > code { background: var(--color-code-bg); padding: 0.1em 0.3em; border-radius: var(--radius); }
.prose pre {
  overflow-x: auto;
  padding: var(--space-3);
  background: var(--color-code-bg);
  border-radius: var(--radius);
  line-height: 1.45;
}
.prose table { border-collapse: collapse; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--color-border); padding: var(--space-1) var(--space-2); }
.prose hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-5) 0; }
.prose .footnotes { font-size: var(--text-sm); color: var(--color-muted); }

/* ---------- Syntax highlighting (generated by Pygments) ---------- */
/* Light: "friendly". Dark: "github-dark". Regenerate with
   HtmlFormatter(style=...).get_style_defs(".highlight") when changing theme. */
.highlight .hll { background-color: #ffffcc }
.highlight { background: #f0f0f0; }
.highlight .c { color: #60A0B0; font-style: italic } /* Comment */
.highlight .err { border: 1px solid #F00 } /* Error */
.highlight .k { color: #007020; font-weight: bold } /* Keyword */
.highlight .o { color: #666 } /* Operator */
.highlight .ch { color: #60A0B0; font-style: italic } /* Comment.Hashbang */
.highlight .cm { color: #60A0B0; font-style: italic } /* Comment.Multiline */
.highlight .cp { color: #007020 } /* Comment.Preproc */
.highlight .cpf { color: #60A0B0; font-style: italic } /* Comment.PreprocFile */
.highlight .c1 { color: #60A0B0; font-style: italic } /* Comment.Single */
.highlight .cs { color: #60A0B0; background-color: #FFF0F0 } /* Comment.Special */
.highlight .gd { color: #A00000 } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.highlight .gr { color: #F00 } /* Generic.Error */
.highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
.highlight .gi { color: #00A000 } /* Generic.Inserted */
.highlight .go { color: #888 } /* Generic.Output */
.highlight .gp { color: #C65D09; font-weight: bold } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
.highlight .gt { color: #04D } /* Generic.Traceback */
.highlight .kc { color: #007020; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #007020; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #007020; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #007020 } /* Keyword.Pseudo */
.highlight .kr { color: #007020; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #902000 } /* Keyword.Type */
.highlight .m { color: #40A070 } /* Literal.Number */
.highlight .s { color: #4070A0 } /* Literal.String */
.highlight .na { color: #4070A0 } /* Name.Attribute */
.highlight .nb { color: #007020 } /* Name.Builtin */
.highlight .nc { color: #0E84B5; font-weight: bold } /* Name.Class */
.highlight .no { color: #60ADD5 } /* Name.Constant */
.highlight .nd { color: #555; font-weight: bold } /* Name.Decorator */
.highlight .ni { color: #D55537; font-weight: bold } /* Name.Entity */
.highlight .ne { color: #007020 } /* Name.Exception */
.highlight .nf { color: #06287E } /* Name.Function */
.highlight .nl { color: #002070; font-weight: bold } /* Name.Label */
.highlight .nn { color: #0E84B5; font-weight: bold } /* Name.Namespace */
.highlight .nt { color: #062873; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #BB60D5 } /* Name.Variable */
.highlight .ow { color: #007020; font-weight: bold } /* Operator.Word */
.highlight .w { color: #BBB } /* Text.Whitespace */
.highlight .mb { color: #40A070 } /* Literal.Number.Bin */
.highlight .mf { color: #40A070 } /* Literal.Number.Float */
.highlight .mh { color: #40A070 } /* Literal.Number.Hex */
.highlight .mi { color: #40A070 } /* Literal.Number.Integer */
.highlight .mo { color: #40A070 } /* Literal.Number.Oct */
.highlight .sa { color: #4070A0 } /* Literal.String.Affix */
.highlight .sb { color: #4070A0 } /* Literal.String.Backtick */
.highlight .sc { color: #4070A0 } /* Literal.String.Char */
.highlight .dl { color: #4070A0 } /* Literal.String.Delimiter */
.highlight .sd { color: #4070A0; font-style: italic } /* Literal.String.Doc */
.highlight .s2 { color: #4070A0 } /* Literal.String.Double */
.highlight .se { color: #4070A0; font-weight: bold } /* Literal.String.Escape */
.highlight .sh { color: #4070A0 } /* Literal.String.Heredoc */
.highlight .si { color: #70A0D0; font-style: italic } /* Literal.String.Interpol */
.highlight .sx { color: #C65D09 } /* Literal.String.Other */
.highlight .sr { color: #235388 } /* Literal.String.Regex */
.highlight .s1 { color: #4070A0 } /* Literal.String.Single */
.highlight .ss { color: #517918 } /* Literal.String.Symbol */
.highlight .bp { color: #007020 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #06287E } /* Name.Function.Magic */
.highlight .vc { color: #BB60D5 } /* Name.Variable.Class */
.highlight .vg { color: #BB60D5 } /* Name.Variable.Global */
.highlight .vi { color: #BB60D5 } /* Name.Variable.Instance */
.highlight .vm { color: #BB60D5 } /* Name.Variable.Magic */
.highlight .il { color: #40A070 } /* Literal.Number.Integer.Long */

@media (prefers-color-scheme: dark) {
    .highlight .hll { background-color: #6e7681 }
    .highlight { background: #0d1117; color: #E6EDF3 }
    .highlight .c { color: #8B949E; font-style: italic } /* Comment */
    .highlight .err { color: #F85149 } /* Error */
    .highlight .esc { color: #E6EDF3 } /* Escape */
    .highlight .g { color: #E6EDF3 } /* Generic */
    .highlight .k { color: #FF7B72 } /* Keyword */
    .highlight .l { color: #A5D6FF } /* Literal */
    .highlight .n { color: #E6EDF3 } /* Name */
    .highlight .o { color: #FF7B72; font-weight: bold } /* Operator */
    .highlight .x { color: #E6EDF3 } /* Other */
    .highlight .p { color: #E6EDF3 } /* Punctuation */
    .highlight .ch { color: #8B949E; font-style: italic } /* Comment.Hashbang */
    .highlight .cm { color: #8B949E; font-style: italic } /* Comment.Multiline */
    .highlight .cp { color: #8B949E; font-weight: bold; font-style: italic } /* Comment.Preproc */
    .highlight .cpf { color: #8B949E; font-style: italic } /* Comment.PreprocFile */
    .highlight .c1 { color: #8B949E; font-style: italic } /* Comment.Single */
    .highlight .cs { color: #8B949E; font-weight: bold; font-style: italic } /* Comment.Special */
    .highlight .gd { color: #FFA198; background-color: #490202 } /* Generic.Deleted */
    .highlight .ge { color: #E6EDF3; font-style: italic } /* Generic.Emph */
    .highlight .ges { color: #E6EDF3; font-weight: bold; font-style: italic } /* Generic.EmphStrong */
    .highlight .gr { color: #FFA198 } /* Generic.Error */
    .highlight .gh { color: #79C0FF; font-weight: bold } /* Generic.Heading */
    .highlight .gi { color: #56D364; background-color: #0F5323 } /* Generic.Inserted */
    .highlight .go { color: #8B949E } /* Generic.Output */
    .highlight .gp { color: #8B949E } /* Generic.Prompt */
    .highlight .gs { color: #E6EDF3; font-weight: bold } /* Generic.Strong */
    .highlight .gu { color: #79C0FF } /* Generic.Subheading */
    .highlight .gt { color: #FF7B72 } /* Generic.Traceback */
    .highlight .g-Underline { color: #E6EDF3; text-decoration: underline } /* Generic.Underline */
    .highlight .kc { color: #79C0FF } /* Keyword.Constant */
    .highlight .kd { color: #FF7B72 } /* Keyword.Declaration */
    .highlight .kn { color: #FF7B72 } /* Keyword.Namespace */
    .highlight .kp { color: #79C0FF } /* Keyword.Pseudo */
    .highlight .kr { color: #FF7B72 } /* Keyword.Reserved */
    .highlight .kt { color: #FF7B72 } /* Keyword.Type */
    .highlight .ld { color: #79C0FF } /* Literal.Date */
    .highlight .m { color: #A5D6FF } /* Literal.Number */
    .highlight .s { color: #A5D6FF } /* Literal.String */
    .highlight .na { color: #E6EDF3 } /* Name.Attribute */
    .highlight .nb { color: #E6EDF3 } /* Name.Builtin */
    .highlight .nc { color: #F0883E; font-weight: bold } /* Name.Class */
    .highlight .no { color: #79C0FF; font-weight: bold } /* Name.Constant */
    .highlight .nd { color: #D2A8FF; font-weight: bold } /* Name.Decorator */
    .highlight .ni { color: #FFA657 } /* Name.Entity */
    .highlight .ne { color: #F0883E; font-weight: bold } /* Name.Exception */
    .highlight .nf { color: #D2A8FF; font-weight: bold } /* Name.Function */
    .highlight .nl { color: #79C0FF; font-weight: bold } /* Name.Label */
    .highlight .nn { color: #FF7B72 } /* Name.Namespace */
    .highlight .nx { color: #E6EDF3 } /* Name.Other */
    .highlight .py { color: #79C0FF } /* Name.Property */
    .highlight .nt { color: #7EE787 } /* Name.Tag */
    .highlight .nv { color: #79C0FF } /* Name.Variable */
    .highlight .ow { color: #FF7B72; font-weight: bold } /* Operator.Word */
    .highlight .pm { color: #E6EDF3 } /* Punctuation.Marker */
    .highlight .w { color: #6E7681 } /* Text.Whitespace */
    .highlight .mb { color: #A5D6FF } /* Literal.Number.Bin */
    .highlight .mf { color: #A5D6FF } /* Literal.Number.Float */
    .highlight .mh { color: #A5D6FF } /* Literal.Number.Hex */
    .highlight .mi { color: #A5D6FF } /* Literal.Number.Integer */
    .highlight .mo { color: #A5D6FF } /* Literal.Number.Oct */
    .highlight .sa { color: #79C0FF } /* Literal.String.Affix */
    .highlight .sb { color: #A5D6FF } /* Literal.String.Backtick */
    .highlight .sc { color: #A5D6FF } /* Literal.String.Char */
    .highlight .dl { color: #79C0FF } /* Literal.String.Delimiter */
    .highlight .sd { color: #A5D6FF } /* Literal.String.Doc */
    .highlight .s2 { color: #A5D6FF } /* Literal.String.Double */
    .highlight .se { color: #79C0FF } /* Literal.String.Escape */
    .highlight .sh { color: #79C0FF } /* Literal.String.Heredoc */
    .highlight .si { color: #A5D6FF } /* Literal.String.Interpol */
    .highlight .sx { color: #A5D6FF } /* Literal.String.Other */
    .highlight .sr { color: #79C0FF } /* Literal.String.Regex */
    .highlight .s1 { color: #A5D6FF } /* Literal.String.Single */
    .highlight .ss { color: #A5D6FF } /* Literal.String.Symbol */
    .highlight .bp { color: #E6EDF3 } /* Name.Builtin.Pseudo */
    .highlight .fm { color: #D2A8FF; font-weight: bold } /* Name.Function.Magic */
    .highlight .vc { color: #79C0FF } /* Name.Variable.Class */
    .highlight .vg { color: #79C0FF } /* Name.Variable.Global */
    .highlight .vi { color: #79C0FF } /* Name.Variable.Instance */
    .highlight .vm { color: #79C0FF } /* Name.Variable.Magic */
    .highlight .il { color: #A5D6FF } /* Literal.Number.Integer.Long */
}