.site-menu-trigger {
  appearance: none;
  display: grid;
  place-items: center;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid #bcb4aa;
  border-radius: 50%;
  background: transparent;
  color: #241b16;
  cursor: pointer;
  font: inherit;
}
.site-menu-trigger:hover { background: rgba(214, 166, 108, .14); }
.site-menu-trigger:focus-visible,
.site-menu-close:focus-visible,
.site-drawer a:focus-visible { outline: 3px solid #d6a66c; outline-offset: 3px; }
.site-menu-trigger--dark { border-color: rgba(255, 255, 255, .72); color: #fff; }
.site-menu-trigger--dark:hover { background: rgba(255, 255, 255, .16); }
.site-menu-bars { display: grid; gap: 4px; width: 18px; }
.site-menu-bars span { display: block; height: 2px; background: currentColor; }
.site-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(420px, 100vw);
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0 28px 40px;
  overflow-y: auto;
  border: 0;
  border-left: 1px solid #e5ded2;
  border-radius: 0;
  background: #fffdf9;
  color: #241b16;
  box-shadow: -12px 0 42px rgba(24, 18, 14, .16);
  font: 400 16px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
.site-drawer::backdrop { background: rgba(20, 15, 11, .48); }
.site-menu-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 83px; border-bottom: 1px solid #e5ded2; }
.site-menu-heading h2 { margin: 0; color: #241b16; font: 800 22px/1.2 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; letter-spacing: -.025em; }
.site-menu-close { display: grid; place-items: center; width: 42px; height: 42px; padding: 0; border: 1px solid #e5ded2; border-radius: 50%; background: transparent; color: #241b16; cursor: pointer; font: 400 30px/1 system-ui, sans-serif; }
.site-menu-close:hover { background: #f6f2e9; }
.site-menu-nav { display: block; }
.site-drawer a { color: #241b16; text-decoration: none; }
.site-menu-home { display: block; padding: 22px 0; border-bottom: 1px solid #e5ded2; font-size: 18px; font-weight: 750; }
.site-menu-group { padding: 20px 0 22px; border-bottom: 1px solid #e5ded2; }
.site-menu-subject { display: block; width: fit-content; margin-bottom: 15px; font-size: 19px; font-weight: 750; }
.site-menu-home:hover,
.site-menu-subject:hover,
.site-menu-grades a:hover { text-decoration: underline; text-underline-offset: 3px; }
.site-menu-grades { display: flex; flex-wrap: wrap; gap: 8px; }
.site-menu-grades a { display: inline-flex; align-items: center; min-height: 36px; padding: 6px 10px; border: 1px solid #e5ded2; border-radius: 7px; background: #fff; font-size: 13px; font-weight: 650; white-space: nowrap; }
.site-menu-soon { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; color: #71685e; font-size: 19px; font-weight: 750; }
.site-menu-soon small { font-size: 13px; font-weight: 600; }
@media (max-width: 480px) {
  .site-drawer { width: min(360px, 100vw); padding-inline: 20px; }
}
.site-header-tools { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.site-search { padding: 20px 0 6px; }
.site-search-label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 700; }
.site-search-input { box-sizing: border-box; width: 100%; min-height: 48px; padding: 10px 14px; border: 1px solid #bcb4aa; border-radius: 10px; background: #fff; color: #241b16; font: 400 16px/1.4 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; }
.site-search-input:focus-visible { outline: 3px solid #d6a66c; outline-offset: 2px; border-color: #241b16; }
.site-search-hint { margin: 8px 0 0; color: #71685e; font-size: 13px; }
.site-search-results { margin: 10px 0 0; padding: 0; list-style: none; }
.site-search-results:empty { display: none; }
.site-search-results a { display: block; padding: 12px 0; border-bottom: 1px solid #e5ded2; }
.site-search-results a:hover strong { text-decoration: underline; text-underline-offset: 3px; }
.site-search-results strong { display: block; font-size: 16px; font-weight: 700; line-height: 1.35; }
.site-search-results small { display: block; margin-top: 3px; color: #71685e; font-size: 13px; }
.site-menu-nav[hidden] { display: none; }
.site-menu-label { margin: 22px 0 4px; color: #71685e; font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
details.site-menu-group { padding: 0; margin: 0; border: 0; border-bottom: 1px solid #e5ded2; background: none; }
details.site-menu-group > summary.site-menu-subject { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; width: auto; margin: 0; padding: 15px 0; border: 0; background: none; color: #241b16; cursor: pointer; list-style: none; font-size: 18px; font-weight: 750; }
details.site-menu-group > summary::-webkit-details-marker { display: none; }
details.site-menu-group > summary::marker { content: ''; }
details.site-menu-group > summary small { margin-left: auto; color: #71685e; font-size: 13px; font-weight: 600; }
details.site-menu-group > summary::after { content: '+'; flex: 0 0 20px; color: #71685e; font-size: 22px; font-weight: 400; line-height: 1; text-align: center; }
details.site-menu-group[open] > summary::after { content: '−'; }
details.site-menu-group > summary:hover { text-decoration: underline; text-underline-offset: 3px; }
details.site-menu-group > summary:focus-visible { outline: 3px solid #d6a66c; outline-offset: 3px; }
details.site-menu-group .site-menu-grades { padding: 0 0 18px; }
.site-menu-grades a[aria-current="page"] { border-color: #241b16; background: #241b16; color: #fff; }
.site-menu-grades .site-menu-all { background: #f6f2e9; }
.site-menu-nav .site-menu-home { padding: 15px 0; }
.site-menu-cabinets { padding: 4px 0 8px; }
.site-drawer .site-menu-cabinet { display: block; margin-top: 8px; padding: 12px 14px; border: 1px solid #e5ded2; border-radius: 10px; background: #fff; }
.site-menu-cabinet strong { display: block; font-size: 16px; }
.site-menu-cabinet small { display: block; margin-top: 2px; color: #71685e; font-size: 13px; }
.site-drawer .site-menu-cabinet:hover { border-color: #b89b7d; }
.site-login { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border: 1px solid currentColor; border-radius: 30px; color: inherit; font: 700 14px/1 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; text-decoration: none; white-space: nowrap; }
.site-login:hover { background: rgba(214, 166, 108, .18); }
.site-login:focus-visible { outline: 3px solid #d6a66c; outline-offset: 3px; }
@media (max-width: 560px) {
  .site-login { padding: 0 12px; }
  .site-header-tools { gap: 6px; }
}
@media (max-width: 380px) {
  .site-login { display: none; }
}
/* Меню вставлено в шапки страниц со своими правилами для nav (например, .topbar nav в каталоге). */
.site-drawer nav.site-menu-nav { display: block; gap: 0; font-size: 16px; font-weight: 400; }
.site-rail { position: fixed; z-index: 90; top: 16px; right: 16px; box-sizing: border-box; display: flex; flex-direction: column; gap: 8px; opacity: 0; transform: translateX(12px); pointer-events: none; transition: opacity .18s, transform .18s; }
.site-rail.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.site-rail-button { appearance: none; display: grid; place-items: center; width: 44px; height: 44px; min-height: 0; padding: 0; border: 1px solid rgba(255, 255, 255, .25); border-radius: 50%; background: #241b16; color: #fff; box-shadow: 0 4px 14px rgba(36, 27, 22, .25); cursor: pointer; font: 600 18px/1 system-ui, -apple-system, "Segoe UI", Arial, sans-serif; }
.site-rail-button:hover { background: #3a2c23; }
.site-rail-button:focus-visible { outline: 3px solid #d6a66c; outline-offset: 3px; }
.site-rail-button[aria-pressed="true"] { background: #6b5a3f; }
.site-rail-button[hidden] { display: none; }
@media (max-width: 700px) {
  .site-rail { top: 10px; right: 10px; gap: 6px; }
  .site-rail-button { width: 40px; height: 40px; font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { .site-rail { transition: none; } }
@media print { .site-rail { display: none; } }