/* Путеводитель по миру книги (/books/<книга>/mir/). */
.world-hero h1 { margin: 8px 0 14px; font-size: clamp(2.4rem, 8vw, 4rem); line-height: 1.05; }
.world-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.world-nav a { padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); text-decoration: none; font-size: .9rem; }
.world-nav a:hover { border-color: var(--accent); color: var(--accent); }
.world-part { scroll-margin-top: 80px; }
.world-part h2 { margin: 0 0 8px; font-size: clamp(1.8rem, 5vw, 2.6rem); color: var(--accent); text-transform: none; letter-spacing: 0; }
.world-lede { margin: 0 0 22px; }
.world-list { display: grid; gap: 12px; }
.world-item { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.world-item > summary, .world-item > .wi-head { display: flex; align-items: flex-start; gap: 14px; padding: 16px 18px; }
.world-item > summary { cursor: pointer; list-style: none; }
.world-item > summary::-webkit-details-marker, .world-beast > summary::-webkit-details-marker { display: none; }
.wi-head { display: grid; gap: 4px; flex: 1; }
.wi-term { font-weight: 700; }
.wi-short { color: var(--ink); line-height: 1.55; }
.world-item[open] .wi-short { color: var(--muted); }
.wi-chev { flex: none; width: 28px; height: 28px; margin-top: -2px; border: 1px solid var(--line); border-radius: 50%; position: relative; transition: transform .25s, border-color .2s; }
.wi-chev::before { content: ""; position: absolute; left: 9px; top: 7px; width: 8px; height: 8px; border: solid var(--accent); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.world-item > summary:hover .wi-chev { border-color: var(--accent); }
.world-item[open] .wi-chev { transform: rotate(180deg); }
.world-item > summary:focus-visible, .world-beast > summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: var(--radius); }
.wi-more { margin: 0 18px; padding: 14px 0 18px; border-top: 1px solid var(--line); line-height: 1.65; }
.wi-more p { margin: 0 0 12px; }
.wi-more p:last-child { margin-bottom: 0; }
/* Плавное раскрытие там, где браузер умеет анимировать details. */
@supports (interpolate-size: allow-keywords) {
  :root { interpolate-size: allow-keywords; }
  .world-item::details-content, .world-beast::details-content { height: 0; overflow: clip; transition: height .3s ease, content-visibility .3s allow-discrete; }
  .world-item[open]::details-content, .world-beast[open]::details-content { height: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .wi-chev { transition: none; }
  .world-item::details-content, .world-beast::details-content { transition: none; }
}
.world-beasts { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 14px; }
.world-beast { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.wb-head { display: grid; justify-items: center; gap: 2px; padding: 14px 8px; text-align: center; list-style: none; }
summary.wb-head { cursor: pointer; }
.wb-name { display: grid; gap: 2px; }
.wb-name > span { color: var(--muted); font-size: .9rem; }
.world-beast svg { width: 96px; height: 96px; transition: transform .25s; }
summary.wb-head:hover svg { transform: scale(1.06); }
/* Открытый зверь растягивается на всю строку: значок слева, рассказ справа. */
.world-beast[open] { grid-column: 1 / -1; border-color: var(--accent); }
.world-beast[open] > .wb-head { grid-template-columns: auto 1fr; justify-items: start; align-items: center; gap: 16px; padding: 14px 18px; text-align: left; }
.world-beast[open] svg { width: 72px; height: 72px; }
.world-words { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin: 0; }
.world-words > div { padding: 12px 16px; border-left: 2px solid var(--accent); }
.world-words dt { font-style: italic; font-weight: 600; }
.world-words dd { margin: 2px 0 0; color: var(--muted); }
[data-skin~="cinema"] .world-item, [data-skin~="cinema"] .world-beast {
  background: #ffffff0c; border-color: #ffffff1c; backdrop-filter: blur(18px) saturate(1.3); -webkit-backdrop-filter: blur(18px) saturate(1.3);
}
[data-skin~="cinema"] .world-nav a { border-color: #ffffff2a; }