/* mukhilan.com — minimal black · zero external requests */

:root {
  --bg: #000000;
  --fg: #e8e8e3;
  --dim: #9a9a94;
  --faint: #6a6a66;
  --line: #232327;
  --code-bg: #0b0b0d;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

/* light theme — opt-in via toggle, black remains the default brand */
[data-theme="light"] {
  --bg: #ffffff;
  --fg: #1c1c1a;
  --dim: #5c5c57;
  --faint: #7d7d77;
  --line: #e5e5e0;
  --code-bg: #f5f5f2;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--fg); color: var(--bg); }

a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--dim);
  text-underline-offset: 3px;
}
a:hover { text-decoration-color: var(--fg); }

.wrap { max-width: 68ch; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

.skip { position: absolute; left: -9999px; }
.skip:focus {
  left: 0; top: 0;
  background: var(--fg); color: var(--bg);
  padding: 0.5rem 1rem; z-index: 10;
}

/* ---------- header ---------- */

.site-head { border-bottom: 1px solid var(--line); }
.site-head .wrap {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}
.site-name { font-weight: 600; text-decoration: none; letter-spacing: 0.01em; }
.site-nav a {
  color: var(--dim);
  text-decoration: none;
  margin-left: 1.1rem;
  font-size: 0.92rem;
}
.site-nav a:hover { color: var(--fg); text-decoration: underline; text-underline-offset: 4px; }

main.wrap { padding-bottom: 4rem; }

/* ---------- home ---------- */

.hero { padding: 4.5rem 0 2.2rem; }
.hero-name {
  font-size: 1.9rem;
  font-weight: 600;
  margin: 0 0 0.45rem;
  letter-spacing: -0.01em;
}
.hero-tagline {
  font-family: var(--mono);
  color: var(--dim);
  font-size: 0.9rem;
  margin: 0;
}
.home .intro { color: var(--dim); max-width: 58ch; }

.section-h {
  font-size: 0.8rem;
  font-family: var(--mono);
  color: var(--faint);
  letter-spacing: 0.08em;
  font-weight: 400;
  margin: 3rem 0 0.4rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.4rem;
}
.archive-note { color: var(--dim); font-size: 0.95rem; margin: 0.6rem 0 0.2rem; }

/* ---------- listings ---------- */

.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}
.post-list li:last-child { border-bottom: 0; }
.post-list a { text-decoration: none; }
.post-list a:hover { text-decoration: underline; text-underline-offset: 3px; }
.post-list time, .li-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--faint);
  white-space: nowrap;
}

.year-h {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--dim);
  font-weight: 400;
  margin: 1.8rem 0 0.2rem;
}

/* ---------- posts & pages ---------- */

.post, .page { padding-top: 3rem; }
.post-title {
  font-size: 1.75rem;
  line-height: 1.25;
  font-weight: 600;
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}
.post-meta {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--faint);
  margin: 0 0 2.2rem;
}
.archived-banner {
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--dim);
  padding: 0.65rem 0.9rem;
  margin: 2.4rem 0 0;
}
.archived-banner a { color: var(--dim); white-space: nowrap; }
.post-nav { font-family: var(--mono); font-size: 0.85rem; margin-top: 3.5rem; }
.post-nav a { color: var(--dim); text-decoration: none; }
.post-nav a:hover { color: var(--fg); }

.err-page { padding: 4rem 0 2rem; }

/* ---------- content ---------- */

.post-content p { margin: 1.25em 0; }
.post-content > *:first-child { margin-top: 0; }
.post-content h2 { font-size: 1.3rem; margin: 2.2em 0 0.7em; font-weight: 600; }
.post-content h3 { font-size: 1.1rem; margin: 1.8em 0 0.6em; font-weight: 600; }
.post-content h4 { font-size: 1rem; margin: 1.5em 0 0.5em; font-weight: 600; }
.post-content ul, .post-content ol { padding-left: 1.4em; margin: 1.25em 0; }
.post-content li { margin: 0.35em 0; }
.post-content blockquote {
  border-left: 2px solid var(--line);
  margin: 1.5em 0;
  padding: 0.1em 0 0.1em 1.1em;
  color: var(--dim);
}
.post-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.8rem auto;
  border: 1px solid var(--line);
}
.post-content hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

.post-content table { border-collapse: collapse; margin: 1.5rem 0; font-size: 0.92em; }
.post-content th, .post-content td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.75rem;
  text-align: left;
}
.post-content th { color: var(--dim); font-weight: 600; }

.post-content code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--code-bg);
  border: 1px solid var(--line);
  padding: 0.12em 0.35em;
  border-radius: 3px;
}
.post-content pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  line-height: 1.55;
  font-size: 0.84rem;
  margin: 1.6rem 0;
  border-radius: 4px;
}
.post-content pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: 1em;
  border-radius: 0;
}

/* ---------- rouge — monochrome syntax ---------- */

.highlight .c, .highlight .cd, .highlight .c1,
.highlight .cm, .highlight .cs { color: var(--faint); font-style: italic; }
.highlight .k, .highlight .kn, .highlight .kv,
.highlight .ow { color: var(--fg); font-weight: 600; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sx,
.highlight .sr, .highlight .se { color: #c9c9c2; }
.highlight .mi, .highlight .mf, .highlight .mh,
.highlight .mb, .highlight .mx { color: #b4b4ad; }
.highlight .nf, .highlight .nc, .highlight .nd { color: var(--fg); font-weight: 600; }
.highlight .nb, .highlight .no, .highlight .nt, .highlight .nx,
.highlight .vc, .highlight .vg, .highlight .vi { color: #c9c9c2; }
.highlight .o, .highlight .p, .highlight .pi { color: var(--dim); }
.highlight .err { color: var(--fg); background: none; }

/* light-theme syntax overrides (dark palette above is too pale on white) */
[data-theme="light"] .highlight .s, [data-theme="light"] .highlight .s1,
[data-theme="light"] .highlight .s2, [data-theme="light"] .highlight .sx,
[data-theme="light"] .highlight .sr, [data-theme="light"] .highlight .se,
[data-theme="light"] .highlight .nb, [data-theme="light"] .highlight .no,
[data-theme="light"] .highlight .nt, [data-theme="light"] .highlight .nx,
[data-theme="light"] .highlight .vc, [data-theme="light"] .highlight .vg,
[data-theme="light"] .highlight .vi { color: #565650; }
[data-theme="light"] .highlight .mi, [data-theme="light"] .highlight .mf,
[data-theme="light"] .highlight .mh, [data-theme="light"] .highlight .mb,
[data-theme="light"] .highlight .mx { color: #41413c; }

/* theme toggle */
.theme-toggle {
  background: none;
  border: 0;
  padding: 2px 0 0 0;
  margin-left: 1.1rem;
  color: var(--dim);
  cursor: pointer;
  line-height: 0;
}
.theme-toggle:hover { color: var(--fg); }
.theme-toggle:focus-visible { outline: 1px solid var(--fg); outline-offset: 3px; }
.theme-toggle svg { width: 15px; height: 15px; vertical-align: middle; }
.theme-toggle .icon-sun { display: inline-block; }
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: inline-block; }

/* ---------- small screens ---------- */

@media (max-width: 560px) {
  body { font-size: 16px; }
  .hero { padding: 3rem 0 1.6rem; }
  .hero-name { font-size: 1.6rem; }
  .post-title { font-size: 1.45rem; }
  .site-nav a { margin-left: 0.8rem; }
}

/* ---------- print ---------- */

@media print {
  body { background: #fff; color: #000; }
  .site-head, .theme-toggle, .archived-banner, .post-nav { display: none; }
  a { color: #000; }
}