/* Shared chapter briefs. Native fonts keep the print companion self-contained. */
:root {
  color-scheme: dark;
  font-family: Arial, Helvetica, sans-serif;
  color: #e6e8ec;
  background: #101418;
  --page: #171d23;
  --toolbar: #11171c;
  --muted: #a3adb8;
  --border: #39434b;
  --accent: #63c5b5;
  --idea: #202d2c;
  --selection: #28574f;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
::selection { background: var(--selection); }
.concise-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 18px 24px; background: var(--toolbar); border-bottom: 1px solid var(--border); font-size: 14px; }
.concise-toolbar span { color: var(--muted); }
.btn { display: inline-flex; align-items: center; min-height: 40px; padding: 8px 16px; border-radius: 6px; background: #17665e; color: #fff; text-decoration: none; font-weight: 700; }
.btn:hover { background: #218478; }
.concise-ch { width: 210mm; min-height: 297mm; margin: 28px auto; padding: 17mm 20mm; background: var(--page); display: flex; flex-direction: column; }
.concise-running { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--accent); font-size: 10pt; font-weight: 700; color: var(--accent); }
.concise-location { margin: 21px 0 7px; font-size: 9pt; color: var(--muted); line-height: 1.4; }
h1 { margin: 0 0 21px; font-size: 25pt; line-height: 1.12; letter-spacing: -.02em; text-wrap: balance; }
h2 { margin: 0 0 7px; font-size: 10pt; color: var(--accent); }
section { margin-bottom: 19px; }
p { margin: 0; font-family: Georgia, 'Times New Roman', serif; font-size: 11.2pt; line-height: 1.48; }
.concise-idea { padding: 15px 18px; background: var(--idea); }
.concise-idea p { font-size: 12pt; line-height: 1.45; }
ol { margin: 0; padding: 0 0 0 21px; }
li { padding-left: 6px; margin: 0 0 10px; }
li::marker { font: 700 10pt Arial, Helvetica, sans-serif; color: var(--accent); }
li p { font-size: 11pt; line-height: 1.42; }
.concise-footer { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 16px; font-size: 8.5pt; color: var(--muted); }
.concise-footer a { color: var(--muted); }
@media screen and (max-width: 820px) {
  .concise-ch { width: auto; min-height: 0; margin: 14px; padding: 24px; }
  h1 { font-size: 27px; }
  .concise-running { font-size: 12px; }
  .concise-running, .concise-footer { flex-wrap: wrap; }
  .concise-footer { margin-top: 18px; row-gap: 8px; }
}
@media print {
  @page { size: A4; margin: 0; }
  :root {
    color-scheme: light;
    color: #202a35;
    background: #fff;
    --page: #fff;
    --toolbar: #fff;
    --muted: #55606b;
    --border: #d4d8d5;
    --accent: #17665e;
    --idea: #edf4f1;
    --selection: #cce8e3;
  }
  body { color: #202a35; background: #fff; }
  .concise-toolbar { display: none; }
  .concise-ch { width: 210mm; height: 297mm; min-height: 0; margin: 0; padding: 17mm 20mm; break-after: page; break-inside: avoid; }
  .concise-ch:last-child { break-after: auto; }
  .concise-idea { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  a { text-decoration: none; }
}