/* Žákovský web Bratrské školy — vlastní úpravy Cassiopeia. */
:root {
  --bratrska-accent: #432c56;
  --bratrska-ink: #29262d;
}

/* Bílá hlavička, vektorové logo a název vedle sebe. */
.container-header {
  color: var(--bratrska-ink);
  background: #fff;
  border-bottom: 1px solid #e7e5e9;
  box-shadow: none;
}
.container-header .navbar-brand {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin: 0;
  padding: 1rem 0 .75rem;
  white-space: normal;
}
.container-header .brand-logo {
  display: block;
  flex: 0 0 auto;
  line-height: 0;
}
.container-header .brand-logo img {
  display: block;
  width: 90px;
  height: 72px;
  object-fit: contain;
}
.container-header .site-description {
  color: var(--bratrska-ink);
  font-size: clamp(1.25rem, 2.6vw, 1.9rem);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -.02em;
}

/* Samostatný řádek menu včetně rozbalovacích položek. */
.container-header .container-nav {
  padding-top: .25rem;
  padding-bottom: .65rem;
  border-top: 1px solid #eeedf0;
}
.container-header nav { margin-top: 0; }
.container-header .metismenu.menu-horizontal { flex-wrap: wrap; }
.container-header .mod-menu,
.container-header .mod-menu .mod-menu__sub a,
.container-header .mod-menu .mod-menu__sub span {
  color: var(--bratrska-ink);
}
.container-header .mod-menu .mm-collapse {
  color: var(--bratrska-ink);
  background: #fff;
}
.container-header .mod-menu > li.active > a,
.container-header .mod-menu > li.active > button,
.container-header .mod-menu a:hover,
.container-header .mod-menu button:hover {
  color: var(--bratrska-accent);
}
.container-header .metismenu > li > a:hover::after,
.container-header .metismenu > li > button:hover::before,
.container-header .metismenu > li.active > a::after,
.container-header .metismenu > li.active > button::before,
.container-header .mod-menu > li.active::after,
.container-header .mod-menu > li:hover::after {
  background: var(--bratrska-accent);
  opacity: 1;
}
.container-header .navbar-toggler {
  color: var(--bratrska-ink);
  border-color: #c8c4cc;
  padding: .65rem .8rem;
}
.container-header a:focus-visible,
.container-header button:focus-visible {
  outline: 2px solid var(--bratrska-accent);
  outline-offset: 4px;
}

/* Klidná šedá patička a čitelná informace o právech. */
.footer {
  color: #4e4b52;
  background: #f0f0f2;
  border-top: 1px solid #e0dfe3;
}
.footer > .grid-child {
  justify-content: center;
  padding: 2rem 1rem;
}
.footer .bratrska-copyright {
  width: 100%;
  max-width: 78ch;
  margin-inline: auto;
  text-align: center;
  font-size: .875rem;
  line-height: 1.65;
}
.footer .bratrska-copyright p { margin: 0 0 .65rem; }
.footer .bratrska-copyright p:last-child { margin-bottom: 0; }
.footer .bratrska-copyright strong { color: #302d35; }
.footer a:not(.btn):hover,
.footer a:not(.btn):focus { color: var(--bratrska-accent); }

@media (max-width: 991.98px) {
  .container-header .metismenu.mod-menu .metismenu-item > ul {
    position: static;
    flex-basis: 100%;
    width: 100%;
    margin: .4rem 0 0;
    padding: 0 0 0 .75rem;
    border-left: 2px solid #e7e2eb;
    box-shadow: none;
  }
}

@media (max-width: 767.98px) {
  .container-header .navbar-brand { gap: .85rem; padding-block: .6rem; }
  .container-header .brand-logo img { width: 75px; height: 60px; }
  .container-header .container-nav nav { margin-top: .25rem; }
  .container-header .site-description { max-width: 24ch; }
  .footer > .grid-child { padding-block: 1.5rem; }
}

/* Přehledy herbářů: jednotné karty, fotografie vždy bez ořezu. */
.bratrska-herbarium.blog-items {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}
.bratrska-herbarium > .blog-item {
  min-width: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e5e2e8;
  border-radius: .6rem;
  overflow: hidden;
}
.bratrska-herbarium .item-image {
  float: none;
  width: 100%;
  margin: 0;
  background: #f6f5f7;
}
.bratrska-herbarium .item-image a { display: block; }
.bratrska-herbarium .item-image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: contain;
}
.bratrska-herbarium .item-image figcaption { display: none; }
.bratrska-herbarium .item-content { padding: 1.15rem; }
.bratrska-herbarium .page-header h2 { font-size: 1.3rem; line-height: 1.3; margin: 0 0 .8rem; }
.bratrska-herbarium .page-header a { color: var(--bratrska-accent); text-decoration: none; }
.bratrska-herbarium .page-header a:hover { text-decoration: underline; }
.bratrska-herbarium .item-content p { margin-bottom: .45rem; }
.bratrska-herbarium .item-content { font-size: .95rem; line-height: 1.65; overflow-wrap: anywhere; }
.bratrska-herbarium-page.view-article .com-content-article > .item-image {
  float: none;
  margin: 0 0 1.5rem;
  background: #f6f5f7;
}
.bratrska-herbarium-page.view-article .com-content-article > .item-image img {
  width: 100%;
  height: auto;
  max-height: 65vh;
  object-fit: contain;
}

/* Větší náhledy galerie, fotografie se neřežou ani nedeformují. */
.bratrska-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin-block: 1.5rem;
}
.bratrska-gallery figure { margin: 0; min-width: 0; }
.bratrska-gallery a {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  padding: .5rem;
  border: 1px solid #e5e2e8;
  border-radius: .5rem;
  background: #f6f5f7;
  overflow: hidden;
  cursor: zoom-in;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.bratrska-gallery img { display: block; width: 100%; height: 100%; object-fit: contain; }
.bratrska-gallery a:hover { border-color: var(--bratrska-accent); box-shadow: 0 3px 14px #432c5614; }
.bratrska-gallery a:focus-visible { outline: 3px solid var(--bratrska-accent); outline-offset: 3px; }

/* Nativní dialog drží klávesové zaměření uvnitř otevřené galerie. */
html.bratrska-gallery-open { overflow: hidden; }
.bratrska-lightbox {
  width: min(1200px, calc(100vw - 2rem));
  max-width: none;
  max-height: calc(100dvh - 2rem);
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: .65rem;
  color: #fff;
  background: #211e25;
  box-shadow: 0 1rem 4rem #0005;
}
.bratrska-lightbox::backdrop { background: #16121ce6; }
.bratrska-lightbox-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .7rem 1rem; }
.bratrska-lightbox-toolbar p { margin: 0; font-weight: 600; }
.bratrska-lightbox button { color: #fff; background: #37313e; border: 1px solid #655d6e; border-radius: .35rem; min-width: 44px; min-height: 44px; }
.bratrska-lightbox button:hover { background: #50475c; }
.bratrska-lightbox button:focus-visible { outline: 3px solid #d6b6f1; outline-offset: 3px; }
.bratrska-lightbox-close { padding: .4rem .75rem; white-space: nowrap; }
.bratrska-lightbox-close span { margin-left: .4rem; font-size: 1.3rem; }
.bratrska-lightbox-stage { position: relative; display: flex; align-items: center; justify-content: center; min-height: 240px; height: min(76dvh, 850px); background: #17141b; }
.bratrska-lightbox-image { width: 100%; height: 100%; object-fit: contain; }
.bratrska-lightbox-image[hidden] { display: none; }
.bratrska-lightbox-prev, .bratrska-lightbox-next { position: absolute; z-index: 1; top: 50%; transform: translateY(-50%); font-size: 2.2rem; line-height: 1; }
.bratrska-lightbox-prev { left: .65rem; }
.bratrska-lightbox-next { right: .65rem; }
.bratrska-lightbox-status { position: absolute; padding: 1rem 4rem; text-align: center; }
.bratrska-lightbox-status:empty { display: none; }
.bratrska-lightbox-hint { margin: 0; padding: .65rem 1rem; color: #d3ccd9; text-align: center; font-size: .8rem; }
@media (max-width: 991.98px) {
  .bratrska-herbarium.blog-items { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bratrska-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 767.98px) {
  .bratrska-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
  .bratrska-lightbox { width: calc(100vw - 1rem); max-height: calc(100dvh - 1rem); }
  .bratrska-lightbox-toolbar { padding: .6rem; font-size: .85rem; }
  .bratrska-lightbox-stage { height: 65dvh; min-height: 180px; }
}
@media (max-width: 575.98px) {
  .bratrska-herbarium.blog-items, .bratrska-gallery { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .bratrska-gallery a { transition: none; }
}