/* Odin & raylib — shared course styling.
   Typography first, then the teaching blocks lessons are built from. */

:root {
  --or-ink: #1b1a16;
  --or-muted: #6b675c;
  --or-paper: #fcfbf7;
  --or-rule: #ddd8ca;
  --or-accent: #8a3324;   /* raylib-ish rust red */
  --or-cool: #23507f;
  --or-code-bg: #f4f1e8;
  --or-measure: 34rem;
}

body {
  background: var(--or-paper);
  color: var(--or-ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Charter, Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

.lesson-content { padding-bottom: 2rem; }

.lesson-content h1,
.lesson-content h2,
.lesson-content h3 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.lesson-content h1 { margin: 0 0 .4rem; font-size: 2.25rem; }
.lesson-content h2 {
  margin: 3rem 0 .9rem;
  padding-top: .9rem;
  border-top: 1px solid var(--or-rule);
  font-size: 1.4rem;
}
.lesson-content h3 { margin: 2rem 0 .6rem; font-size: 1.1rem; }

.lesson-content .eyebrow {
  margin: 0 0 .5rem;
  color: var(--or-muted);
  font: 600 .74rem/1.3 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.lesson-content .subtitle,
.lesson-content .lede {
  max-width: var(--or-measure);
  color: var(--or-muted);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.45;
}

.lesson-content p,
.lesson-content li { max-width: var(--or-measure); }
.lesson-content p { margin: 0 0 1.1rem; }
.lesson-content ul,
.lesson-content ol { margin: 0 0 1.1rem; padding-left: 1.3rem; }
.lesson-content li { margin-bottom: .45rem; }

.lesson-content a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--or-cool) 55%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: .16em;
}
.lesson-content a:hover { color: var(--or-cool); }

.lesson-content strong { font-weight: 650; }

/* --- Code ---------------------------------------------------------------- */

.lesson-content code,
.lesson-content kbd {
  font-family: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .87em;
}

.lesson-content :not(pre) > code {
  padding: .1em .34em;
  border-radius: .25rem;
  background: var(--or-code-bg);
  white-space: nowrap;
}

.lesson-content kbd {
  padding: .12em .4em;
  border: 1px solid var(--or-rule);
  border-bottom-width: 2px;
  border-radius: .3rem;
  background: #fff;
  font-size: .82em;
}

.lesson-content pre {
  max-width: 44rem;
  margin: 0 0 1.4rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--or-rule);
  border-left: 3px solid color-mix(in srgb, var(--or-accent) 70%, transparent);
  border-radius: .4rem;
  background: var(--or-code-bg);
  font-size: .95rem;
  line-height: 1.55;
}
.lesson-content pre code { background: none; white-space: pre; }

/* --- Teaching blocks ----------------------------------------------------- */

.block {
  max-width: 44rem;
  margin: 1.6rem 0;
  padding: 1rem 1.2rem;
  border: 1px solid var(--or-rule);
  border-radius: .5rem;
  background: #fff;
}

.block > :last-child { margin-bottom: 0; }

.block > .block-label {
  margin: 0 0 .5rem;
  color: var(--or-muted);
  font: 700 .7rem/1.3 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.block.is-key { border-left: 3px solid var(--or-accent); }
.block.is-key > .block-label { color: var(--or-accent); }

.block.is-do {
  border-left: 3px solid var(--or-cool);
  background: color-mix(in srgb, var(--or-cool) 4%, #fff);
}
.block.is-do > .block-label { color: var(--or-cool); }

.block.is-source { background: var(--or-code-bg); border-style: dashed; }

.block.is-ask {
  border: 0;
  border-top: 1px solid var(--or-rule);
  border-radius: 0;
  background: none;
  color: var(--or-muted);
  font-style: italic;
}

/* --- Quiz ---------------------------------------------------------------- */

.quiz {
  max-width: 44rem;
  margin: 1.8rem 0;
  padding: 1.1rem 1.2rem 1.2rem;
  border: 1px solid var(--or-rule);
  border-radius: .5rem;
  background: #fff;
}

.quiz > .block-label {
  margin: 0 0 .8rem;
  color: var(--or-accent);
  font: 700 .7rem/1.3 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.quiz-q { margin: 0 0 .75rem; font-weight: 600; }

.quiz-a { margin: 0; padding: 0; list-style: none; display: grid; gap: .45rem; }
.quiz-a li { max-width: none; margin: 0; }

.quiz-a button {
  display: block;
  width: 100%;
  padding: .6rem .8rem;
  border: 1px solid var(--or-rule);
  border-radius: .4rem;
  background: var(--or-paper);
  color: inherit;
  font: inherit;
  font-size: .97rem;
  text-align: left;
  cursor: pointer;
}
.quiz-a button:hover:not(:disabled) { border-color: var(--or-cool); }
.quiz-a button:focus-visible { outline: 2px solid var(--or-cool); outline-offset: 2px; }
.quiz-a button:disabled { cursor: default; opacity: .95; }

.quiz-a button[data-state="right"] {
  border-color: #2f7d4f;
  background: color-mix(in srgb, #2f7d4f 12%, #fff);
  font-weight: 600;
}
.quiz-a button[data-state="wrong"] {
  border-color: var(--or-accent);
  background: color-mix(in srgb, var(--or-accent) 10%, #fff);
  text-decoration: line-through;
}

.quiz-why {
  margin: .9rem 0 0;
  padding-top: .8rem;
  border-top: 1px solid var(--or-rule);
  color: var(--or-muted);
  font-size: .95rem;
}
.quiz-why[hidden] { display: none; }

/* --- Reference pages ----------------------------------------------------- */

[data-page-kind="reference"] .lesson-content pre,
[data-page-kind="reference"] .lesson-content p,
[data-page-kind="reference"] .lesson-content li { max-width: none; }

[data-page-kind="reference"] .lesson-content table { border-collapse: collapse; font-size: .95rem; }
[data-page-kind="reference"] .lesson-content th,
[data-page-kind="reference"] .lesson-content td {
  padding: .4rem .8rem .4rem 0;
  border-bottom: 1px solid var(--or-rule);
  text-align: left;
  vertical-align: top;
}
[data-page-kind="reference"] .lesson-content th {
  color: var(--or-muted);
  font: 700 .72rem/1.3 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* --- Print --------------------------------------------------------------- */

@media print {
  .learning-home,
  .course-navigator,
  .learning-footer,
  .lesson-podcast,
  .quiz { display: none; }

  body { background: #fff; font-size: 10.5pt; }
  .lesson-content { width: auto; }
  .lesson-content p,
  .lesson-content li,
  .lesson-content pre { max-width: none; }
  .lesson-content h2 { break-after: avoid; }
  .lesson-content pre,
  .block { break-inside: avoid; background: #fff; }
  .lesson-content a::after { content: " (" attr(href) ")"; font-size: 8pt; word-break: break-all; }
}