/* ---- identity tokens (ported from index.html) ---- */
:root {
  --bg:        #0f1113;
  --fg:        #00ff88;   /* full neon — accents: headings, brand, links, hover */
  --fg-body:   #dceee4;   /* near-white with faint green cast — long-form reading */
  --fg-muted:  #00ff8899; /* secondary text (meta, dates, blurbs) */
  --fg-dim:    #00ff8855;
  --fg-faint:  #00ff8822;
  --glow-sm:   0 0 10px #00ff8888;
  --glow-md:   0 0 15px #00ff88;
  --glow-lg:   0 0 20px #00ff88, 0 0 40px #00ff88;
  --code-bg:   #0a0c0d;
  --maxw:      48rem;
}

/* ---- prose font: IBM Plex Sans ---- */
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/fonts/IBMPlexSans-Regular.woff2') format('woff2');
  font-weight: normal; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/fonts/IBMPlexSans-Bold.woff2') format('woff2');
  font-weight: bold; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/fonts/IBMPlexSans-Italic.woff2') format('woff2');
  font-weight: normal; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/fonts/IBMPlexSans-BoldItalic.woff2') format('woff2');
  font-weight: bold; font-style: italic; font-display: swap;
}

/* ---- code font: JetBrains Mono ---- */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono-Regular.woff2') format('woff2');
  font-weight: normal; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono-Bold.woff2') format('woff2');
  font-weight: bold; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono-Italic.woff2') format('woff2');
  font-weight: normal; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/fonts/JetBrainsMono-BoldItalic.woff2') format('woff2');
  font-weight: bold; font-style: italic; font-display: swap;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg-body);            /* prose reads off-white; accents override below */
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  line-height: 1.65;
}

/* terminal touchpoints stay monospace */
.brand, .page-heading, .writeup-title, .prose h2, .prose h3,
.prose pre, .prose pre code, .prose :not(pre) > code,
.tag, .card-date, .writeup-meta {
  font-family: 'JetBrains Mono', monospace;
}

/* dotted grid background, fixed behind content */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(var(--fg-faint) 1px, transparent 1px),
                    radial-gradient(var(--fg-faint) 1px, transparent 1px);
  background-position: 0 0, 25px 25px;
  background-size: 50px 50px;
  pointer-events: none;
}

/* ---- header / footer ---- */
.site-header {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.brand {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--fg);
  text-decoration: none;
  border-bottom: none;
  text-shadow: var(--glow-md);
}
.brand:hover { border-bottom: none; }
.brand-sub { color: var(--fg-dim); font-size: 1rem; }

.site-footer {
  max-width: var(--maxw);
  margin: 4rem auto 3rem;
  padding: 1.5rem 1.25rem 0;
  border-top: 1px solid var(--fg-faint);
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
}

/* ---- links: accents stay neon, glow only on hover ---- */
a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--fg-dim);
  text-shadow: none;
  transition: text-shadow 0.2s, border-color 0.2s;
}
a:hover { border-color: var(--fg); text-shadow: var(--glow-sm); }

/* ---- main column ---- */
.content {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.page-heading {
  font-size: 2rem;
  color: var(--fg);
  text-shadow: var(--glow-lg);
  margin: 0.5rem 0 2rem;
}

/* ---- titlecards ---- */
.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.25rem; }
.card {
  border: 1px solid var(--fg-dim);
  border-radius: 6px;
  background: #00ff8808;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--fg);
  box-shadow: var(--glow-sm);
  transform: translateY(-2px);
}
.card-link {
  display: block;
  padding: 1.1rem 1.25rem;
  border-bottom: none;
  text-shadow: none;
}
.card-link:hover { border-bottom: none; text-shadow: none; }
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.card-title { font-size: 1.15rem; margin: 0; color: var(--fg); text-shadow: var(--glow-sm); }
.card-date { color: var(--fg-dim); font-size: 0.8rem; white-space: nowrap; }
.card-blurb { margin: 0.5rem 0 0; color: var(--fg-muted); font-size: 0.92rem; }
.card-tags { margin-top: 0.7rem; display: flex; gap: 0.4rem; flex-wrap: wrap; }

/* ---- tags ---- */
.tag {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.12rem 0.5rem;
  border: 1px solid var(--fg-dim);
  border-radius: 999px;
  color: var(--fg);
  text-shadow: none;
}
a.tag { border-bottom: 1px solid var(--fg-dim); }
a.tag:hover { border-color: var(--fg); box-shadow: var(--glow-sm); }
.taglist { list-style: none; padding: 0; display: flex; gap: 0.6rem; flex-wrap: wrap; }

/* ---- writeup page ---- */
.writeup-header { margin: 0.5rem 0 2.5rem; }
.back { font-size: 0.85rem; }
.writeup-title { font-size: 2rem; margin: 1rem 0 0.6rem; color: var(--fg); text-shadow: var(--glow-lg); }
.writeup-meta { display: flex; gap: 0.8rem; align-items: center; flex-wrap: wrap; color: var(--fg-muted); font-size: 0.85rem; }

/* ---- prose (rendered markdown) ---- */
.prose { font-size: 1rem; color: var(--fg-body); }
.prose h2 { font-size: 1.4rem; margin: 2.2rem 0 0.8rem; color: var(--fg); text-shadow: var(--glow-sm); }
.prose h3 { font-size: 1.15rem; margin: 1.8rem 0 0.6rem; color: var(--fg); }
.prose p { margin: 1rem 0; }
.prose a { color: var(--fg); }
.prose img { max-width: 100%; height: auto; border: 1px solid var(--fg-dim); border-radius: 4px; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose blockquote {
  margin: 1.2rem 0;
  padding: 0.2rem 1rem;
  border-left: 2px solid var(--fg-dim);
  color: var(--fg-muted);
}

/* inline code */
.prose :not(pre) > code {
  background: #00ff8814;
  border: 1px solid var(--fg-faint);
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  font-size: 0.9em;
}

/* code blocks — Giallo wraps highlighted code in z-* spans */
.prose pre {
  background: var(--code-bg);
  border: 1px solid var(--fg-dim);
  border-radius: 6px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  box-shadow: inset 0 0 30px #00ff8806;
  line-height: 1.5;
  font-size: 0.88rem;
}
.prose pre code { background: none; border: none; padding: 0; }

/* no underlines inside code; force upright tokens */
.prose pre a,
.prose pre span,
.prose pre .giallo-l {
  border-bottom: none;
  text-decoration: none;
}
.prose pre [class*="z-"] { font-style: normal; }

/* palette-matched scrollbar so horizontal scroll is discoverable */
.prose pre::-webkit-scrollbar { height: 8px; }
.prose pre::-webkit-scrollbar-thumb { background: var(--fg-dim); border-radius: 4px; }
.prose pre::-webkit-scrollbar-track { background: transparent; }

/* required by Giallo for line / line-number layout */
.giallo-l {
  display: inline-block;
  min-height: 1lh;
  width: 100%;
}
.giallo-ln {
  display: inline-block;
  user-select: none;
  margin-right: 0.4em;
  padding: 0.4em;
  min-width: 3ch;
  text-align: right;
  opacity: 0.8;
}

/* ---- small screens ---- */
@media (max-width: 600px) {
  .page-heading, .writeup-title { font-size: 1.6rem; }
  .site-header { padding-top: 1.75rem; }
}