/* ItsyBOT Devlog: the bench logbook. Tokens follow itsybit.se (warm near-black, coral). */

:root {
  --bg: oklch(0.17 0.008 60);
  --bg-raised: oklch(0.215 0.008 60);
  --rule: oklch(0.29 0.008 60);
  --text: oklch(0.9 0.018 75);
  --text-soft: oklch(0.76 0.02 75);
  --text-muted: oklch(0.6 0.016 70);
  --coral: oklch(0.68 0.14 30);
  --coral-soft: oklch(0.68 0.14 30 / 0.14);
  --sage: oklch(0.66 0.05 150);

  --serif-display: "Instrument Serif", Georgia, serif;
  --serif-text: "Literata", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --measure: 68ch;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: oklch(0.965 0.012 80);
    --bg-raised: oklch(0.93 0.014 80);
    --rule: oklch(0.86 0.014 75);
    --text: oklch(0.24 0.012 60);
    --text-soft: oklch(0.38 0.014 60);
    --text-muted: oklch(0.5 0.014 60);
    --coral: oklch(0.55 0.15 30);
    --coral-soft: oklch(0.55 0.15 30 / 0.1);
    --sage: oklch(0.5 0.06 150);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif-text);
  font-size: clamp(1.0625rem, 0.98rem + 0.35vw, 1.1875rem);
  line-height: 1.75;
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration-color: var(--coral); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--coral); }
:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; border-radius: 2px; }

/* ---------- chrome ---------- */

.site-head, main, .site-foot {
  width: min(100% - 2 * var(--gutter), 72rem);
  margin-inline: auto;
}

.site-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  font-family: var(--serif-display);
  font-size: 1.5rem;
  line-height: 1;
  text-decoration: none;
  letter-spacing: 0.005em;
}
.wordmark em { color: var(--coral); }

.site-nav { display: flex; gap: 1.25rem; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04em; }
.site-nav a { color: var(--text-muted); text-decoration: none; }
.site-nav a:hover { color: var(--coral); }

.site-foot {
  margin-top: clamp(4rem, 10vw, 8rem);
  padding-block: 2rem 3rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.meta, .labels, .count {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.labels { display: flex; flex-wrap: wrap; gap: 0.25rem 0.9rem; }
.labels span::before { content: "#"; color: var(--coral); opacity: 0.7; }

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

.masthead {
  padding-block: clamp(3.5rem, 10vw, 7rem) clamp(2rem, 5vw, 3.5rem);
  display: grid;
  gap: 1.25rem;
}

.masthead h1 {
  margin: 0;
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(3rem, 1.6rem + 7vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: -0.015em;
  max-width: 11ch;
}
.masthead h1 em { color: var(--coral); }
.masthead .intro p { margin: 0; max-width: 40ch; color: var(--text-soft); font-size: 1.125em; }
.masthead .intro strong { font-weight: 600; color: var(--text); }
.count { margin: 0; }

.lead-entry {
  display: grid;
  gap: 0.75rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  background: var(--bg-raised);
  border-radius: 4px;
  margin-bottom: clamp(3rem, 8vw, 5rem);
}
.lead-entry .meta { margin: 0; color: var(--coral); }
.lead-entry h2 {
  margin: 0;
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(2.1rem, 1.3rem + 3.6vw, 4rem);
  line-height: 1.02;
  max-width: 20ch;
  text-wrap: balance;
}
.lead-entry h2 a { text-decoration: none; }
.lead-entry .lede { margin: 0; max-width: 60ch; color: var(--text-soft); }
.lead-entry .read {
  justify-self: start;
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--coral);
  text-decoration: none;
}
.lead-entry .read::after { content: " →"; transition: margin 0.3s var(--ease-out); }
.lead-entry .read:hover::after { margin-left: 0.3em; }

.ledger { display: grid; grid-template-columns: minmax(0, 1fr); margin-bottom: clamp(2.5rem, 6vw, 4rem); }

.year {
  margin: 0 0 0.5rem;
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 2rem + 2vw, 3.5rem);
  line-height: 1;
  color: var(--text-muted);
}

.ledger ol { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.ledger li { border-bottom: 1px solid var(--rule); }

.ledger li a {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr) minmax(0, 20rem);
  gap: 0.25rem 1.5rem;
  align-items: baseline;
  padding-block: 1rem;
  text-decoration: none;
  transition: background-color 0.25s var(--ease-out);
}
.ledger li a:hover { background: var(--coral-soft); color: inherit; }
.ledger li a:hover .title { color: var(--coral); }

.ledger .when { font-family: var(--mono); font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; padding-left: 0.5rem; }
.ledger .wk { color: var(--text-soft); margin-right: 0.4em; }
.ledger .title { text-wrap: balance; font-family: var(--serif-display); font-size: clamp(1.35rem, 1.1rem + 0.8vw, 1.75rem); line-height: 1.15; }
.ledger .labels { justify-content: flex-end; padding-right: 0.5rem; }

@media (max-width: 52rem) {
  .ledger li a { grid-template-columns: minmax(0, 1fr); padding-inline: 0.25rem; }
  .ledger .when, .ledger .labels { padding: 0; }
  .ledger .labels { justify-content: flex-start; }
}

/* ---------- post ---------- */

.entry { width: min(100%, var(--measure)); margin-inline: auto; }

.entry-head { padding-block: clamp(3rem, 9vw, 6rem) clamp(2rem, 5vw, 3rem); display: grid; gap: 1rem; }
.entry-head .meta { margin: 0; color: var(--coral); }
.entry-head h1 {
  margin: 0;
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 1.5rem + 5vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.entry-head .labels { margin: 0; }

.prose > :first-child { margin-top: 0; }
.prose > p:first-child { font-size: 1.2em; line-height: 1.6; color: var(--text); }

.prose p, .prose ul, .prose ol { margin: 0 0 1.4em; }
.prose p { text-wrap: pretty; hanging-punctuation: first; }
.prose strong { font-weight: 600; }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li { margin-bottom: 0.4em; }
.prose li::marker { color: var(--coral); }

.prose h2 {
  margin: 1.9em 0 0.7em;
  padding-top: 0.9em;
  border-top: 1px solid var(--rule);
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(1.75rem, 1.4rem + 1.2vw, 2.25rem);
  line-height: 1.1;
  text-wrap: balance;
}
.prose h3 {
  margin: 2em 0 0.6em;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-soft);
}

/* The closing reflection reads as a margin note, not another section. */
.prose h2#reflection { color: var(--coral); }
.prose h2#reflection ~ * { font-size: 0.94em; color: var(--text-soft); }
.prose h2#reflection ~ p > strong:first-child { font-family: var(--mono); font-weight: 500; font-size: 0.78em; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text); }

.prose blockquote {
  margin: 2em 0;
  padding: 0;
  font-style: italic;
  font-size: 1.15em;
  color: var(--text-soft);
}
.prose blockquote::before { content: "“"; display: block; height: 0.5em; font-family: var(--serif-display); font-size: 3em; line-height: 1; color: var(--coral); }

.prose code {
  font-family: var(--mono);
  font-size: 0.84em;
  padding: 0.1em 0.35em;
  background: var(--bg-raised);
  border-radius: 3px;
  overflow-wrap: anywhere;
}
.prose pre {
  margin: 1.8em 0;
  padding: 1.1em 1.25em;
  background: var(--bg-raised);
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.85em;
  line-height: 1.6;
}
.prose pre code { padding: 0; background: none; font-size: inherit; overflow-wrap: normal; }
.prose .highlight { background: none; }
.prose .highlight .c, .prose .highlight .c1, .prose .highlight .cm { color: var(--text-muted); font-style: italic; }
.prose .highlight .k, .prose .highlight .kd, .prose .highlight .kt { color: var(--coral); }
.prose .highlight .s, .prose .highlight .s1, .prose .highlight .s2 { color: var(--sage); }

.prose hr { border: 0; height: 1px; background: var(--rule); margin: 3em 0; }
.prose img { max-width: 100%; height: auto; border-radius: 4px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.9em; margin: 1.8em 0; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 0.5em 0.75em; border-bottom: 1px solid var(--rule); }
.prose th { font-family: var(--mono); font-weight: 500; font-size: 0.8em; color: var(--text-muted); }

.entry-nav {
  margin-top: clamp(3rem, 8vw, 5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
}
.entry-nav a {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--rule);
  font-family: var(--serif-display);
  font-size: 1.35rem;
  line-height: 1.15;
  text-decoration: none;
}
.entry-nav a span { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); }
.entry-nav .next { text-align: right; }
.entry-nav a:hover { color: var(--coral); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ---------- read it all ---------- */

.lead-entry .actions { display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; margin: 0; }

.reader-head { width: min(100%, var(--measure)); margin-inline: auto; padding-block: clamp(3rem, 9vw, 6rem) 1rem; }
.reader-head .meta { margin: 0 0 1rem; color: var(--coral); }
.reader-head h1 { margin: 0 0 0.75rem; font-family: var(--serif-display); font-weight: 400; font-size: clamp(3rem, 1.8rem + 5vw, 5.5rem); line-height: 0.95; }
.reader-head h1 em { color: var(--coral); }
.reader-head p:last-child { margin: 0; color: var(--text-soft); }

.reader-entry { scroll-margin-top: 1rem; }
.reader-entry + .reader-entry { margin-top: clamp(3rem, 8vw, 5rem); border-top: 1px solid var(--rule); }
.reader-entry .entry-head { padding-block: clamp(2.5rem, 6vw, 4rem) 1.5rem; }
.reader-entry .entry-head h2 {
  margin: 0;
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 1.4rem + 3.5vw, 3.75rem);
  line-height: 1;
  text-wrap: balance;
}
.reader-entry .meta a { color: var(--text-muted); }
.reader-entry .meta a:hover { color: var(--coral); }
.reader-end { width: min(100%, var(--measure)); margin: clamp(3rem, 8vw, 5rem) auto 0; padding-top: 1.5rem; border-top: 1px solid var(--rule); }

.keep-reading { margin: clamp(2.5rem, 6vw, 4rem) 0 0; font-family: var(--mono); font-size: 0.8125rem; }
.keep-reading a { color: var(--coral); text-decoration: none; }
.keep-reading a::after { content: " ↓"; }