/* CineBrain Pro — Neuro-Logos: açık kabartmalı zemin, bakır ve arduvaz, serif başlık, mono etiketler. */
:root {
  --bg: #EDF0F8;
  --ink: #23262E;
  --mute: #646A79;
  --copper: #A2584A;
  --slate: #4C5566;
  --shade: #C9CFDC;
  --light: #FFFFFF;
  --card: #EDF0F8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1B1D22;
    --ink: #E8EAF0;
    --mute: #A3A9B6;
    --copper: #D08A7A;
    --slate: #9AA3B5;
    --shade: #121317;
    --light: #262931;
    --card: #1F2228;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
.mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--mute);
}
header { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.lang a {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--mute); text-decoration: none; padding: 8px 12px; border-radius: 999px;
}
.lang a[aria-current="page"] {
  color: var(--ink); background: var(--card);
  box-shadow: 2px 2px 5px var(--shade), -2px -2px 5px var(--light);
}
h1, h2 { font-family: ui-serif, "New York", Georgia, "Times New Roman", serif; font-weight: 400; line-height: 1.15; }
h1 { font-size: clamp(34px, 8vw, 46px); margin: 18px 0 6px; }
h2 { font-size: 24px; margin: 0 0 10px; }
.lede { font-family: ui-serif, "New York", Georgia, serif; font-style: italic; font-size: 20px; color: var(--slate); margin: 0 0 28px; }
.card {
  background: var(--card); border-radius: 24px; padding: 22px 22px 18px; margin: 0 0 22px;
  box-shadow: 6px 7px 18px var(--shade), -6px -6px 18px var(--light);
}
.card .mono { display: block; margin-bottom: 8px; }
.summary { border-left: 3px solid var(--copper); }
.summary ul { margin: 0; padding-left: 20px; }
.summary li { margin: 4px 0; font-family: ui-serif, "New York", Georgia, serif; font-size: 19px; }
p { margin: 0 0 12px; }
ul { margin: 0 0 12px; padding-left: 20px; }
li { margin: 6px 0; }
strong { font-weight: 600; }
a { color: var(--copper); }
.contact a.mail {
  display: inline-block; margin: 6px 0 10px; padding: 12px 18px; border-radius: 999px; text-decoration: none;
  font-family: ui-serif, "New York", Georgia, serif; font-size: 20px; color: var(--copper); background: var(--card);
  box-shadow: 4px 4px 10px var(--shade), -4px -4px 10px var(--light);
}
footer { margin-top: 36px; text-align: center; }

/* ---- Kılavuz ---- */
nav.site { display: flex; gap: 6px; flex-wrap: wrap; }
.toc ol { margin: 0; padding-left: 22px; columns: 2; column-gap: 24px; }
.toc li { margin: 4px 0; break-inside: avoid; }
.toc a { text-decoration: none; }
section.chapter { scroll-margin-top: 16px; }
.chapter > h2.big { font-size: clamp(28px, 6vw, 34px); margin: 36px 0 14px; }
.chapter h3 { font-family: ui-serif, "New York", Georgia, serif; font-weight: 400; font-size: 20px; margin: 16px 0 6px; }
figure { margin: 18px auto 22px; text-align: center; }
figure img {
  width: 100%; max-width: 300px; height: auto; border-radius: 26px; display: block; margin: 0 auto;
  box-shadow: 6px 7px 18px var(--shade), -6px -6px 18px var(--light);
}
figure.pair { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
figure.pair img { max-width: 240px; }
figcaption { margin-top: 10px; }
figure.pair figcaption { flex-basis: 100%; }
.notes {
  border: 1.5px dashed var(--shade); border-radius: 18px; padding: 14px 18px; min-height: 120px; margin: 4px 0 8px;
  background: transparent;
}
.notes .mono { color: var(--copper); }
dl.terms { margin: 0; }
dl.terms dt { font-weight: 600; margin-top: 10px; }
dl.terms dd { margin: 2px 0 0; }
.qa h3 { margin-top: 18px; }

@media print {
  :root { --bg: #FFFFFF; --card: #FFFFFF; --shade: #D6DAE3; --light: #FFFFFF; --ink: #23262E; --mute: #646A79; --slate: #4C5566; --copper: #A2584A; }
  body { font-size: 11pt; background: #FFFFFF; }
  main { max-width: none; padding: 0; }
  header nav, .lang, nav.site { display: none; }
  .card { box-shadow: none; border: 1px solid #D6DAE3; }
  .toc { break-inside: avoid; }
  section.chapter { break-before: page; }
  h2, h3 { break-after: avoid; }
  p, li { orphans: 3; widows: 3; }
  figure { break-inside: avoid; }
  figure img { max-width: 210px; box-shadow: none; border: 1px solid #D6DAE3; }
  figure.pair img { max-width: 180px; }
  .notes { min-height: 140px; break-inside: avoid; }
  a { color: var(--ink); text-decoration: none; }
}
@media (max-width: 520px) { .toc ol { columns: 1; } }