/* TokenGesture — terminal-styled design system.
   Everything is monospace; structure borrows from a shell session. */

:root {
  --paper: #F4F2EA;          /* warm paper, not a stark white terminal */
  --panel: #EBE8DD;
  --ink: #1D2021;
  --ink-soft: #6A6A5F;
  --rule: #D6D2C2;
  --prompt: #2F8A5B;         /* shell green, muted for light backgrounds */
  --lock: #B8860B;
  --chip-1: #D3E3F2;
  --chip-2: #DFD8EE;
  --chip-3: #D7E8D2;
  --chip-4: #F3DFC8;
  --chip-5: #EFD7E0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #11100E;        /* warm near-black, not blue-black */
    --panel: #191815;
    --ink: #D8D3C4;
    --ink-soft: #8A8578;
    --rule: #2C2A25;
    --prompt: #7FB069;
    --lock: #E8B32A;
    --chip-1: #22333F;
    --chip-2: #2E2A3C;
    --chip-3: #22331F;
    --chip-4: #3A2D1C;
    --chip-5: #37232C;
  }
}
:root[data-theme="dark"] {
  --paper: #11100E; --panel: #191815; --ink: #D8D3C4; --ink-soft: #8A8578;
  --rule: #2C2A25; --prompt: #7FB069; --lock: #E8B32A;
  --chip-1: #22333F; --chip-2: #2E2A3C; --chip-3: #22331F;
  --chip-4: #3A2D1C; --chip-5: #37232C;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { height: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 15px;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.prompt { color: var(--prompt); }

/* ------------------------------------------------ header / footer */
.site-header, .site-footer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 1.5rem;
  font-size: 0.8125rem;
  color: var(--ink-soft);
}
.site-header { border-bottom: 1px solid var(--rule); }
.site-footer { border-top: 1px solid var(--rule); margin-top: 4rem; }
.site-footer a { color: var(--ink-soft); }
.wordmark {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.meta-text { font-size: 0.8125rem; color: var(--ink-soft); }
a.meta-text { text-decoration: underline; text-underline-offset: 0.2em; }

/* ------------------------------------------------ layout */
main {
  flex: 1;
  width: 100%;
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 0;
}
main > section + section { margin-top: 3rem; }

.hero h1 {
  font-size: clamp(1.125rem, 2.6vw, 1.5rem);
  font-weight: 500;
  line-height: 1.5;
  max-width: 58ch;   /* the tagline is 52ch — must not wrap on its own account */
  letter-spacing: -0.01em;
}
.hero .byline { margin-top: 0.6rem; }
.hero.center { text-align: center; margin-top: 4rem; }
.hero.center h1 { margin: 0 auto; font-size: clamp(1.5rem, 5vw, 2.5rem); }
.hero.center .lede { margin: 1.5rem auto 0; }

.cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  margin-left: 0.3em;
  vertical-align: -0.18em;
  background: var(--prompt);
  animation: blink 1.06s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

.section-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.45rem;
  margin-bottom: 1rem;
}

/* ------------------------------------------------ tag rail */
.tag-rail { display: flex; flex-wrap: wrap; gap: 0.3rem 0.4rem; margin-bottom: 1rem; }
.tag-btn {
  font: inherit;
  font-size: 0.8125rem;
  color: var(--ink-soft);
  background: none;
  border: none;
  padding: 0.1em 0.4em;
  cursor: pointer;
  text-align: left;
}
.tag-btn span { margin-left: 0.4em; opacity: 0.6; }
.tag-btn:hover { color: var(--ink); }
.tag-btn[aria-pressed="true"] { background: var(--panel); color: var(--ink); }
.tag-btn[aria-pressed="true"]::before { content: "> "; color: var(--prompt); }
.tag-btn:focus-visible { outline: 1px solid var(--ink); outline-offset: 2px; }
.post-list li[hidden] { display: none; }

@media (min-width: 56rem) {
  main.home { max-width: 62rem; }
  .writing-grid { display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: 1.75rem; }
  .tag-rail {
    position: sticky; top: 1.5rem; align-self: start;
    flex-direction: column; align-items: flex-start; gap: 0.15rem; margin-bottom: 0;
  }
}

/* ------------------------------------------------ project cards */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 0.75rem;
}
.project-card {
  display: block;
  text-decoration: none;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--rule);
  padding: 0.85rem 1rem;
}
.project-card.c1 { border-left-color: var(--chip-1); }
.project-card.c2 { border-left-color: var(--chip-2); }
.project-card.c3 { border-left-color: var(--chip-3); }
.project-card.c4 { border-left-color: var(--chip-4); }
.project-card.c5 { border-left-color: var(--chip-5); }
a.project-card:hover { border-color: var(--ink-soft); }
a.project-card:hover h3 { color: var(--prompt); }
.project-card.is-teaser { border-style: dashed; border-left-style: solid; }
.project-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.project-card h3::before { content: "./"; color: var(--ink-soft); font-weight: 400; }
.project-card p {
  font-size: 0.8125rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0.3rem 0 0.6rem;
}

/* ------------------------------------------------ post table
   Rigid console columns: date | project | lock | name. Widths are in ch so
   every row lines up exactly, the way a terminal listing does. */
.post-list { list-style: none; border-top: 1px solid var(--rule); }
.post-list li {
  display: grid;
  grid-template-columns: 2ch 10ch 16ch minmax(0, 1fr);
  gap: 0 1ch;
  align-items: baseline;
  padding: 0.2rem 0.5ch;
  border-bottom: 1px solid var(--rule);
}
.post-list--noproject li { grid-template-columns: 2ch 10ch minmax(0, 1fr); }
.post-list li:hover { background: var(--panel); }

/* Column widths are in ch, which resolves against the element's own font
   size — so the header keeps the row font size and shrinks only its labels. */
.row-head {
  color: var(--ink-soft);
  background: var(--panel);
}
.row-head > span { font-size: 0.75rem; letter-spacing: 0.04em; }
.row-head:hover { background: var(--panel); }

.post-list time {
  font-size: 0.8125rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}
.cell-project { min-width: 0; }
.cell-lock { color: var(--lock); line-height: 1; }
.post-link {
  /* One line only: ellipsis on overflow. Full text in the title attribute
     and on the article page itself. */
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.875rem;
  color: var(--ink);
  text-decoration: none;
}
a.post-link:hover { color: var(--prompt); }
.post-link.is-locked { color: var(--ink-soft); }

@media (max-width: 34rem) {
  /* Two lines per entry, still column-aligned: date + project, then name. */
  .post-list li,
  .post-list--noproject li { grid-template-columns: 2ch 10ch minmax(0, 1fr); }
  .cell-lock { grid-row: 1; grid-column: 1; }
  .post-list time { grid-row: 1; grid-column: 2; }
  .cell-project { grid-row: 1; grid-column: 3; }
  .post-link { grid-row: 2; grid-column: 2 / -1; }
  .post-list .row-head { display: none; }
}

/* ------------------------------------------------ chips */
.chip {
  font-size: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  padding: 0.05em 0.45em;
  white-space: nowrap;
}
/* In the table, the chip fills its column so project blocks are uniform. */
.cell-project .chip {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}
a.chip:hover { text-decoration: underline; text-underline-offset: 0.2em; }
.chip.c1, .token.c1 { background: var(--chip-1); }
.chip.c2, .token.c2 { background: var(--chip-2); }
.chip.c3, .token.c3 { background: var(--chip-3); }
.chip.c4, .token.c4 { background: var(--chip-4); }
.chip.c5, .token.c5 { background: var(--chip-5); }

/* ------------------------------------------------ lock + badges */
.lock-badge {
  display: inline-block;
  margin-right: 0.35em;
  color: var(--lock);
  line-height: 0;
}
.lock-badge svg { width: 0.8em; height: 0.8em; fill: currentColor; vertical-align: baseline; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.private-badge {
  font-size: 0.75rem;
  color: var(--ink-soft);
  border: 1px dashed var(--ink-soft);
  padding: 0.02em 0.4em;
  white-space: nowrap;
}
.project-card .private-badge { margin-left: 0.4rem; }

/* ------------------------------------------------ page heads */
.page-head { margin-bottom: 1.75rem; }
.eyebrow { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.6rem; margin-bottom: 0.9rem; }
.eyebrow time { font-size: 0.8125rem; color: var(--ink-soft); }
.page-head h1, article > header h1 {
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.015em;
  max-width: 40ch;
}
.lede {
  margin-top: 0.85rem;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  max-width: 62ch;
}
.lede a { color: var(--ink); }

/* ------------------------------------------------ post image */
.post-image { margin-bottom: 1.75rem; }
.post-image img { display: block; width: 100%; height: auto; border: 1px solid var(--rule); }

/* ------------------------------------------------ prose */
.prose {
  font-size: 0.9375rem;
  line-height: 1.8;
  max-width: 76ch;
  overflow-wrap: break-word;
}
.prose > * + * { margin-top: 1.15em; }
.prose h2, .prose h3, .prose h4 {
  font-weight: 600;
  line-height: 1.4;
  margin-top: 2em;
  letter-spacing: -0.01em;
}
.prose h2 { font-size: 1.0625rem; }
.prose h2::before { content: "## "; color: var(--prompt); font-weight: 400; }
.prose h3 { font-size: 0.9375rem; }
.prose h3::before { content: "### "; color: var(--prompt); font-weight: 400; }
.prose a { color: var(--ink); text-underline-offset: 0.2em; }
.prose a:hover { color: var(--prompt); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.35em; }
.prose ul { list-style: none; padding-left: 1.1em; }
.prose ul li { position: relative; }
.prose ul li::before {
  content: "-"; position: absolute; left: -1.1em; color: var(--prompt);
}
.prose blockquote {
  border-left: 2px solid var(--prompt);
  padding: 0.2em 0 0.2em 1em;
  color: var(--ink-soft);
  /* Long unbreakable values (big integers) scroll here, not on the page. */
  overflow-x: auto;
  overflow-wrap: normal;
}
.prose code { font-size: 0.9em; background: var(--panel); padding: 0.1em 0.3em; }
.prose pre {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
  font-size: 0.8125rem;
  line-height: 1.65;
}
.prose pre code { background: none; padding: 0; font-size: inherit; }
.prose img { max-width: 100%; border: 1px solid var(--rule); }
.prose hr { border: none; border-top: 1px dashed var(--rule); }
.prose table { border-collapse: collapse; font-size: 0.875rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--rule); padding: 0.35em 0.7em; text-align: left; }

/* ------------------------------------------------ 404 tokens */
.token { padding: 0.04em 0.06em; }

/* ------------------------------------------------ focus */
a:focus-visible { outline: 1px solid var(--ink); outline-offset: 2px; }