/* Dropdown menu styly pro STUDIUM */

/* KRITICKÉ: Zajistit, že submenu v mobilním menu je skryté - nejvyšší priorita */
.u-nav-container-collapse .u-nav-item.has-submenu:not(.submenu-open) .u-nav-submenu {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  max-height: 0 !important;
  height: 0 !important;
  overflow: hidden !important;
  padding: 0 !important;
  margin: 0 !important;
  line-height: 0 !important;
}

/* Základní styly pro menu s podsložkami */
.u-nav-item.has-submenu {
  position: relative;
}

.u-nav-item.has-submenu > a {
  position: relative;
}

.u-nav-item.has-submenu > a::after {
  content: "▼";
  font-size: 0.7em;
  margin-left: 5px;
  display: inline-block;
  transition: transform 0.3s ease;
  vertical-align: middle;
}

/* Desktop – rozbalení při najetí */
.u-nav-container .u-nav-item.has-submenu:hover > a::after {
  transform: rotate(180deg);
}

/* Submenu – výchozí stav skrytý */
.u-nav-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 220px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
  list-style: none;
  padding: 8px 0;
  margin: 0;
  pointer-events: none;
}

.u-nav-container .u-nav-item.has-submenu:hover > .u-nav-submenu,
.u-nav-container .u-nav-item.has-submenu:focus-within > .u-nav-submenu {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0);
  pointer-events: auto !important;
  display: block !important;
  max-height: none !important;
  height: auto !important;
  overflow: visible !important;
  padding: 8px 0 !important;
  margin: 0 !important;
  line-height: normal !important;
}

.u-nav-container .u-nav-item.has-submenu {
  position: relative;
  z-index: 1001;
}

.u-nav-container .u-nav-item.has-submenu:hover,
.u-nav-container .u-nav-item.has-submenu:focus-within {
  z-index: 1002;
}

.u-nav-container .u-nav-item.has-submenu > .u-nav-submenu::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 0;
  right: 0;
  height: 10px;
}

.u-nav-submenu .u-nav-link {
  display: block;
  padding: 10px 20px;
  color: #333;
  text-decoration: none;
  transition: background-color 0.2s;
  border-radius: 0;
}

.u-nav-submenu .u-nav-link:hover {
  background-color: #f5f5f5;
  color: #2d5016;
}

/* Responzivní úpravy – horizontální menu na užších PC (např. 150% škálování) */
@media (max-width: 991px) {
  .u-nav-container:not(.u-nav-container-collapse) .u-nav-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    transform: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background: #fff;
    margin-top: 0;
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    max-height: none;
    overflow: hidden;
    padding: 0;
    pointer-events: none;
  }

  .u-nav-container:not(.u-nav-container-collapse) .u-nav-item.has-submenu:hover > .u-nav-submenu,
  .u-nav-container:not(.u-nav-container-collapse) .u-nav-item.has-submenu:focus-within > .u-nav-submenu {
    opacity: 1 !important;
    visibility: visible !important;
    max-height: none !important;
    height: auto !important;
    margin-top: 0 !important;
    padding: 8px 0 !important;
    pointer-events: auto !important;
    overflow: visible !important;
  }
  
  .u-nav-container:not(.u-nav-container-collapse) .u-nav-submenu .u-nav-link {
    padding-left: 20px;
    font-size: 0.9em;
    white-space: normal;
  }
}

/* Pro mobilní menu (u-nav-container-collapse) */
.u-nav-container-collapse .u-nav-item.has-submenu .u-nav-submenu {
  position: static !important;
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  max-height: 0 !important;
  overflow: hidden !important;
  transform: none !important;
  box-shadow: none !important;
  background: rgba(255, 255, 255, 0.1) !important;
  margin-top: 0 !important;
  padding: 0 !important;
  transition: opacity 0.3s ease, max-height 0.3s ease, padding 0.3s ease, margin 0.3s ease, display 0.3s ease;
}

.u-nav-container-collapse .u-nav-item.has-submenu.submenu-open .u-nav-submenu {
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
  max-height: 500px !important;
  margin-top: 5px !important;
  padding: 5px 0 !important;
}

.u-nav-container-collapse .u-nav-item.has-submenu > a {
  position: relative;
  cursor: pointer;
}

.u-nav-container-collapse .u-nav-item.has-submenu > a::after {
  content: "▶";
  font-size: 0.7em;
  margin-left: 8px;
  display: inline-block;
  transition: transform 0.3s ease;
  vertical-align: middle;
}

.u-nav-container-collapse .u-nav-item.has-submenu.submenu-open > a::after {
  transform: rotate(90deg);
}

.u-nav-container-collapse .u-nav-submenu .u-nav-link {
  padding-left: 30px;
  color: #fff;
}

.u-nav-container-collapse .u-nav-submenu .u-nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* Oprava responzivity mobilního menu */
/* 1. Oprava výšky a scrollování mobilního menu */
.u-nav-container-collapse .u-sidenav-overflow {
  overflow-y: auto !important;
  overflow-x: hidden !important;
  -webkit-overflow-scrolling: touch;
  max-height: 100vh;
  max-height: -webkit-fill-available;
}

.u-nav-container-collapse .u-inner-container-layout {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding-bottom: 20px;
}

.u-nav-container-collapse .u-popupmenu-items {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding-bottom: 40px;
}

/* 2. Úprava padding a margin pro menu položky */
@media (max-width: 767px) {
  .u-nav-container-collapse .u-popupmenu-items {
    margin-top: 20px;
    padding-top: 20px;
    padding-bottom: 60px;
  }
  
  .u-nav-container-collapse .u-nav-item {
    margin-bottom: 5px;
  }
  
  .u-nav-container-collapse .u-nav-link {
    padding: 12px 20px !important;
    font-size: 1rem;
    line-height: 1.5;
  }
  
  /* Zajistit, aby submenu bylo správně zobrazeno */
  .u-nav-container-collapse .u-nav-item.has-submenu.submenu-open .u-nav-submenu {
    max-height: 1000px;
    padding: 10px 0;
  }
  
  .u-nav-container-collapse .u-nav-submenu .u-nav-link {
    padding: 10px 20px 10px 40px !important;
    font-size: 0.95rem;
  }
  
  /* KRITICKÉ: Zajistit, že submenu je skryté, pokud není otevřené - pro mobilní zařízení */
  .u-nav-container-collapse .u-nav-item.has-submenu:not(.submenu-open) .u-nav-submenu {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    max-height: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
    padding: 0 !important;
    margin: 0 !important;
  }
}

/* 3. Responzivní úpravy pro velmi malé obrazovky */
@media (max-width: 575px) {
  .u-nav-container-collapse .u-popupmenu-items {
    padding-bottom: 80px;
  }
  
  .u-nav-container-collapse .u-nav-link {
    padding: 14px 15px !important;
    font-size: 0.95rem;
  }
  
  .u-nav-container-collapse .u-nav-submenu .u-nav-link {
    padding: 10px 15px 10px 35px !important;
    font-size: 0.9rem;
  }
  
  /* Zajistit, aby menu bylo celé vidět */
  .u-nav-container-collapse .u-sidenav-overflow {
    padding-bottom: 20px;
  }
}

/* 4. Zajistit správné zobrazení a scrollování submenu */
/* Zajistit, že submenu je skryté, pokud není otevřené - nejvyšší priorita */
/* Tato pravidla mají nejvyšší prioritu a přepisují všechna ostatní */
.u-nav-container-collapse .u-nav-item.has-submenu:not(.submenu-open) .u-nav-submenu,
.u-nav-container-collapse .u-nav-item.has-submenu .u-nav-submenu:not(.submenu-open),
.u-nav-container-collapse .u-popupmenu-items .u-nav-item.has-submenu:not(.submenu-open) .u-nav-submenu {
  display: none !important;
  overflow: hidden !important;
  max-height: 0 !important;
  opacity: 0 !important;
  visibility: hidden !important;
  padding: 0 !important;
  margin: 0 !important;
  height: 0 !important;
  line-height: 0 !important;
  position: static !important;
}

.u-nav-container-collapse .u-nav-item.has-submenu .u-nav-submenu {
  overflow: hidden !important;
}

.u-nav-container-collapse .u-nav-item.has-submenu.submenu-open .u-nav-submenu {
  display: block !important;
  overflow: visible !important;
  max-height: none !important;
  height: auto !important;
  line-height: normal !important;
}

/* Zajistit, aby poslední položka menu byla viditelná */
.u-nav-container-collapse .u-popupmenu-items::after {
  content: "";
  display: block;
  height: 20px;
  flex-shrink: 0;
}


/*
 * Mobilni nabidka: nicepage.css nastavuje .u-nav-link { white-space: nowrap },
 * takze dlouhe texty (napr. Informace pro uchazece) mizi mimo uzky panel 250px.
 * Sirsi panel, zalamovani, dynamicka vyska viewportu a safe area pro posledni polozky.
 */
@media (max-width: 991px) {
  nav.u-menu.u-offcanvas {
    --sidenav-width: min(90vw, 320px);
  }

  .u-enable-responsive.u-offcanvas .u-sidenav {
    height: 100dvh;
    max-height: 100dvh;
    height: -webkit-fill-available;
    max-height: -webkit-fill-available;
  }

  .u-nav-container-collapse .u-sidenav-overflow {
    max-height: 100dvh !important;
    max-height: -webkit-fill-available !important;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px)) !important;
    box-sizing: border-box;
  }

  .u-nav-container-collapse .u-nav-link,
  .u-nav-container-collapse .u-nav-submenu .u-nav-link {
    white-space: normal !important;
    overflow-wrap: anywhere;
    word-wrap: break-word;
  }

  .u-nav-container-collapse .u-popupmenu-items {
    padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .u-nav-container-collapse .u-popupmenu-items::after {
    height: calc(28px + env(safe-area-inset-bottom, 0px));
  }
}