/*
 * Handout — Academic Modern (light, print-friendly)
 * ==================================================
 * Sibling to research-report.css (dark research aesthetic). This is the
 * light/printable counterpart for meeting handouts and worked-examples
 * documents that need to be readable on paper or screen, in any room.
 *
 * Single warm-slate accent (#2c5e8f). Inter body, JetBrains Mono code.
 * Designed for self-contained pandoc output with `--self-contained`.
 */

/* ── Reset ──────────────────────────────────────────────── */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Tokens ─────────────────────────────────────────────── */

:root {
  --bg-page:       #fbfaf6;        /* warm off-white, easy on screens */
  --bg-paper:      #ffffff;        /* pure white for print */
  --bg-code:       #f3efe6;        /* parchment-tinted code background */
  --bg-pre:        #f7f3e9;        /* slightly lighter for pre blocks */
  --bg-callout:    #f8eed8;        /* muted ochre for the FICTIONAL banner */
  --bg-thead:      #f0ece1;        /* subtle table header */

  --fg-body:       #1d1c1a;        /* near-black, slight warmth */
  --fg-muted:      #5b574f;        /* warm gray for secondary */
  --fg-faint:      #8a857a;        /* tertiary / footnote-like */

  --rule:          #d8d2c2;        /* paper-warm rule */
  --rule-strong:   #a89f87;

  --accent:        #2c5e8f;        /* warm slate-blue, the only color */
  --accent-soft:   #5b88b5;
  --accent-bg:     #e8efd7;        /* faint olive-tinted accent backdrop (used sparingly) */

  --warn:          #8a4a1c;        /* burnt sienna for the FICTIONAL banner text */

  --font-body:     "Inter", "Helvetica Neue", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display:  "Inter", system-ui, sans-serif;
  --font-serif:    "Source Serif 4", "Source Serif Pro", "Iowan Old Style", "Charter", Georgia, "Times New Roman", serif;
  --font-mono:     "JetBrains Mono", "IBM Plex Mono", "Cascadia Code", "Fira Code", Consolas, monospace;

  --measure:       68ch;
  --leading:       1.6;
  --leading-tight: 1.3;
}

/* ── Page ───────────────────────────────────────────────── */

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--bg-page);
  color: var(--fg-body);
  font-family: var(--font-body);
  font-feature-settings: "kern", "liga", "calt", "ss01";
  line-height: var(--leading);
  max-width: var(--measure);
  margin: 3rem auto 4rem;
  padding: 0 1.5rem;
}

/* ── Pandoc title block ─────────────────────────────────── */

header#title-block-header,
.title,
h1.title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--fg-body);
  margin: 0 0 0.25rem 0;
}

.subtitle {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin: 0.25rem 0 0;
}

.date,
.author {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--fg-faint);
  letter-spacing: 0.02em;
}

header#title-block-header {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
}

/* ── Headings ───────────────────────────────────────────── */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--fg-body);
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.005em;
}

h1 {
  font-size: 1.65rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--accent);
}

h2 {
  font-size: 1.25rem;
  color: var(--accent);
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  font-style: italic;
  color: var(--fg-body);
  margin-top: 1.75rem;
}

h4, h5, h6 {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
}

/* ── Body text ──────────────────────────────────────────── */

p {
  margin: 0 0 1rem;
  hyphens: auto;
}

p + p { margin-top: 0; }

strong { font-weight: 600; color: var(--fg-body); }
em { font-style: italic; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  transition: border-color 120ms ease, color 120ms ease;
}
a:hover {
  color: var(--accent-soft);
  border-bottom-color: var(--accent-soft);
}

/* ── Lists ──────────────────────────────────────────────── */

ul, ol {
  margin: 0 0 1rem 1.5rem;
  padding: 0;
}
li { margin-bottom: 0.35rem; }
li > p { margin-bottom: 0.35rem; }

/* ── Blockquote (used for the FICTIONAL banner near the top) ── */

blockquote {
  position: relative;
  background: var(--bg-callout);
  border-left: 3px solid var(--warn);
  padding: 0.85rem 1.1rem;
  margin: 1.5rem 0;
  color: var(--warn);
  font-family: var(--font-serif);
  font-style: italic;
  border-radius: 2px;
}
blockquote p { margin: 0; }
blockquote strong { color: var(--warn); }

/* ── Code ───────────────────────────────────────────────── */

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-code);
  color: var(--fg-body);
  padding: 0.08em 0.35em;
  border-radius: 3px;
  border: 1px solid color-mix(in srgb, var(--rule) 60%, transparent);
}

pre {
  background: var(--bg-pre);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.9rem 1rem;
  margin: 1.25rem 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--fg-body);
}
pre code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
  border-radius: 0;
}

/* ── Tables ─────────────────────────────────────────────── */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}
thead th {
  background: var(--bg-thead);
  font-family: var(--font-display);
  font-weight: 600;
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-bottom: 2px solid var(--rule-strong);
  color: var(--fg-body);
}
tbody td {
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: none; }

/* ── Horizontal rule ────────────────────────────────────── */

hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 2rem 0;
}

/* ── Footer-like trailing italic note ───────────────────── */

p:last-of-type em,
p > em:only-child {
  color: var(--fg-muted);
}

/* ── Print ──────────────────────────────────────────────── */

@page {
  margin: 0.85in 0.9in;
}

@media print {
  html, body {
    background: var(--bg-paper);
    color: #000;
    font-size: 11pt;
  }
  body {
    margin: 0 auto;
    max-width: none;
    padding: 0;
  }
  a {
    color: var(--accent);
    border-bottom: none;
  }
  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    color: var(--fg-faint);
  }
  pre, blockquote, table { page-break-inside: avoid; }
  h1, h2, h3 { page-break-after: avoid; }
  /* Force the `\newpage` Pandoc directive to honor a page break */
  div.newpage,
  .pagebreak,
  hr.pagebreak {
    page-break-before: always;
    border: none;
    height: 0;
    margin: 0;
  }
}