/*
 * header.css — Sidebar-Navigation (+ Topbar mobil, + header_fake).
 *
 * Die Hauptnavigation ist eine helle, minimalistische Sidebar am linken Rand.
 * Logo und Nutzerinfo sind Teil der Sidebar; einen separaten Seiten-Header
 * gibt es auf dem Desktop nicht mehr.
 *
 *  - Desktop: ein-/ausklappbar (.sidebar--collapsed = nur Icons),
 *    Zustand wird in localStorage gehalten (JS in includes/header.php).
 *  - Mobil (<= 768px): Off-Canvas-Menü, geöffnet über den Hamburger-Button
 *    in der Topbar (.sidebar--open + Backdrop).
 *
 * Im Dev-Modus bekommt die Sidebar die Klasse .sidebar--dev (dunkel).
 * header_fake (Sonderseiten ohne Login) nutzt weiterhin den einfachen
 * Logo-Header mit .navbar--empty.
 *
 * Farben und Radien kommen aus base.css (Token-Schicht).
 */

/* Seiteninhalt neben der Sidebar einrücken.
   padding-left / width nur bei Benutzer-Klick animieren — nicht bei jedem
   Seitenload, sonst fährt die Sidebar bei jedem Reload ein. */
body:has(#sidebar) {
  padding-left: var(--sidebar-width);
}

body:has(#sidebar.sidebar--collapsed),
html.sidebar-collapsed body:has(#sidebar) {
  padding-left: var(--sidebar-width-collapsed);
}

body.sidebar-width-animating:has(#sidebar) {
  transition: padding-left 0.2s ease;
}

/* ------------------------------------------------------------------ */
/* Sidebar                                                             */
/* ------------------------------------------------------------------ */

#sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  transition: transform 0.2s ease;
  overflow: hidden;
}

#sidebar.sidebar--collapsed,
html.sidebar-collapsed #sidebar {
  width: var(--sidebar-width-collapsed);
}

body.sidebar-width-animating #sidebar {
  transition: width 0.2s ease, transform 0.2s ease;
}

/* Bei Tab-Wechsel im selben Wettbewerb bleibt die Sidebar stehen. */
html:active-view-transition-type(wettbewerb-tab) #sidebar {
  view-transition-name: app-sidebar;
}

html:active-view-transition-type(wettbewerb-tab) ::view-transition-old(app-sidebar),
html:active-view-transition-type(wettbewerb-tab) ::view-transition-new(app-sidebar),
html:active-view-transition-type(wettbewerb-tab) ::view-transition-group(app-sidebar) {
  animation-duration: 0s;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 16px 12px 12px 14px;
}

.sidebar__logos,
.mobile_topbar__logos {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.sidebar__logo {
  display: block;
  line-height: 0;
  flex-shrink: 1;
  padding: 3px;
  border-radius: var(--radius-sm);
}

.sidebar__logo:hover {
  background-color: var(--sidebar-hover);
}

.sidebar__logo img {
  display: block;
  height: 40px;
  width: auto;
  max-width: 92px;
  object-fit: contain;
}

.sidebar__logo--dis img {
  height: 36px;
  max-width: 78px;
}

#btn_sidebar_collapse,
#btn_sidebar_close {
  background: none;
  border: none;
  color: var(--sidebar-muted);
  font-size: 15px;
  padding: 8px 9px;
  min-width: 40px;
  min-height: 40px;
  flex-shrink: 0;
  cursor: pointer;
  border-radius: var(--radius-sm);
  line-height: 1;
}

#btn_sidebar_collapse:hover,
#btn_sidebar_close:hover {
  background-color: var(--sidebar-hover);
  color: var(--sidebar-text-strong);
}

#btn_sidebar_close {
  display: none;
}

#sidebar.sidebar--collapsed .sidebar__logos,
html.sidebar-collapsed #sidebar .sidebar__logos {
  display: none;
}

#sidebar.sidebar--collapsed .sidebar__brand,
html.sidebar-collapsed #sidebar .sidebar__brand {
  justify-content: center;
  padding-left: 14px;
}

#sidebar.sidebar--collapsed #btn_sidebar_collapse i,
html.sidebar-collapsed #sidebar #btn_sidebar_collapse i {
  display: inline-block;
  transform: rotate(180deg);
}

.sidebar__links {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 6px 10px;
  scrollbar-width: thin;
}

.sidebar__section-label {
  display: block;
  padding: 10px 12px 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sidebar-muted);
}

.sidebar__footer {
  padding: 4px 10px 8px;
  border-top: 1px solid var(--sidebar-border);
}

.sidebar__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 15px;
  padding: 9px 12px;
  margin: 1px 0;
  border-radius: 9px;
  white-space: nowrap;
  min-height: 40px;
  transition: background-color 0.12s ease, color 0.12s ease;
}

.sidebar__link i {
  font-size: 18px;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
  color: var(--sidebar-muted);
  transition: color 0.12s ease;
  -webkit-text-stroke: 0.4px currentColor;
}

.sidebar__link:hover {
  background-color: var(--sidebar-hover);
  color: var(--sidebar-text-strong);
}

.sidebar__link:hover i {
  color: var(--sidebar-text-strong);
}

.sidebar__link--active {
  background-color: var(--sidebar-active-bg);
  color: var(--color-accent);
  font-weight: 600;
}

.sidebar__link--active i {
  color: var(--color-accent);
}

.sidebar__link--active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--color-accent);
}

.sidebar__footer .sidebar__link {
  font-size: 14px;
  padding: 7px 12px;
  min-height: 36px;
}

.sidebar__footer .sidebar__link i {
  font-size: 16px;
}

.sidebar__logout {
  margin: 0 10px 4px;
}

.sidebar__user {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 14px;
  border-top: 1px solid var(--sidebar-border);
  text-decoration: none;
  white-space: nowrap;
}

.sidebar__user:hover {
  background-color: var(--sidebar-hover);
}

.sidebar__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

.sidebar__user_info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.sidebar__user_name {
  color: var(--sidebar-text-strong);
  font-size: 14px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__user_school {
  color: var(--sidebar-muted);
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
}

#sidebar.sidebar--collapsed .sidebar__label,
#sidebar.sidebar--collapsed .sidebar__user_info,
#sidebar.sidebar--collapsed .sidebar__section-label,
html.sidebar-collapsed #sidebar .sidebar__label,
html.sidebar-collapsed #sidebar .sidebar__user_info,
html.sidebar-collapsed #sidebar .sidebar__section-label {
  display: none;
}

#sidebar.sidebar--collapsed .sidebar__link,
html.sidebar-collapsed #sidebar .sidebar__link {
  justify-content: center;
  padding: 9px 0;
}

#sidebar.sidebar--collapsed .sidebar__link--active::before,
html.sidebar-collapsed #sidebar .sidebar__link--active::before {
  display: none;
}

#sidebar.sidebar--collapsed .sidebar__user,
html.sidebar-collapsed #sidebar .sidebar__user {
  justify-content: center;
  padding: 12px 0;
}

#sidebar.sidebar--collapsed .sidebar__logout,
html.sidebar-collapsed #sidebar .sidebar__logout {
  margin: 0 10px 4px;
}

#sidebar_backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background-color: rgba(24, 24, 27, 0.4);
}

/* ------------------------------------------------------------------ */
/* Dev-Modus: dunkle Sidebar                                           */
/* ------------------------------------------------------------------ */

#sidebar.sidebar--dev {
  --sidebar-bg: #18181B;
  --sidebar-border: #2E2E33;
  --sidebar-text: #B8B8BF;
  --sidebar-text-strong: #FFFFFF;
  --sidebar-muted: #85858D;
  --sidebar-hover: #26262B;
  --sidebar-active-bg: rgba(255, 255, 255, 0.12);
}

#sidebar.sidebar--dev .sidebar__link--active,
#sidebar.sidebar--dev .sidebar__link--active i {
  color: #FFFFFF;
}

#sidebar.sidebar--dev .sidebar__link--active::before {
  background: #FFFFFF;
}

/* ------------------------------------------------------------------ */
/* Mobile Topbar (Hamburger + Logo)                                    */
/* ------------------------------------------------------------------ */

#mobile_topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 900;
  align-items: center;
  gap: 4px;
  height: 56px;
  background-color: var(--sidebar-bg);
  border-bottom: 1px solid var(--sidebar-border);
  margin-bottom: 12px;
}

#btn_sidebar_open {
  background: none;
  border: none;
  color: var(--sidebar-text-strong);
  font-size: 24px;
  padding: 8px 10px 8px 14px;
  min-width: 40px;
  min-height: 40px;
  cursor: pointer;
  line-height: 1;
}

.mobile_topbar__logos {
  flex: 1;
  min-width: 0;
}

.mobile_topbar__logos .sidebar__logo img {
  height: 34px;
  max-width: 86px;
}

.mobile_topbar__logos .sidebar__logo--dis img {
  height: 30px;
  max-width: 72px;
}

/* ------------------------------------------------------------------ */
/* header_fake: einfacher Logo-Header + leere rote Leiste              */
/* ------------------------------------------------------------------ */

#div_header {
  height: 64px;
  margin: 0;
  background-color: var(--color-surface);
}

#div_header_img {
  display: inline-block;
  width: 49%;
  height: 100%;
  text-align: left;
}

#div_header_user {
  display: inline-block;
  vertical-align: top;
  width: 49%;
  height: 100%;
}

#img_header_jugenddebattiertlogo {
  height: 44px;
  margin: 10px 0 0 18px;
}

#div_header_navbar.navbar--empty {
  display: block;
  background-color: var(--color-accent);
  height: 3px;
}

/* ------------------------------------------------------------------ */
/* Mobil: Off-Canvas                                                   */
/* ------------------------------------------------------------------ */

@media only screen and (max-width: 768px) {
  body:has(#sidebar),
  body:has(#sidebar.sidebar--collapsed),
  html.sidebar-collapsed body:has(#sidebar) {
    padding-left: 0;
  }

  #mobile_topbar {
    display: flex;
  }

  #sidebar,
  #sidebar.sidebar--collapsed,
  html.sidebar-collapsed #sidebar {
    width: min(290px, 85vw);
    transform: translateX(-100%);
    border-right: none;
    box-shadow: 0 0 40px rgba(24, 24, 27, 0.25);
  }

  #sidebar:not(.sidebar--open) {
    box-shadow: none;
  }

  #sidebar.sidebar--open,
  #sidebar.sidebar--collapsed.sidebar--open {
    transform: translateX(0);
  }

  #sidebar.sidebar--collapsed .sidebar__label,
  #sidebar.sidebar--collapsed .sidebar__user_info,
  html.sidebar-collapsed #sidebar .sidebar__label,
  html.sidebar-collapsed #sidebar .sidebar__user_info {
    display: flex;
  }

  #sidebar.sidebar--collapsed .sidebar__section-label,
  html.sidebar-collapsed #sidebar .sidebar__section-label {
    display: block;
  }

  #sidebar.sidebar--collapsed .sidebar__link,
  html.sidebar-collapsed #sidebar .sidebar__link {
    justify-content: flex-start;
    padding: 9px 12px;
  }

  #sidebar.sidebar--collapsed .sidebar__link--active::before,
  html.sidebar-collapsed #sidebar .sidebar__link--active::before {
    display: block;
  }

  #sidebar.sidebar--collapsed .sidebar__user,
  html.sidebar-collapsed #sidebar .sidebar__user {
    justify-content: flex-start;
    padding: 12px 14px;
  }

  #sidebar.sidebar--collapsed .sidebar__logos,
  html.sidebar-collapsed #sidebar .sidebar__logos {
    display: flex;
  }

  #sidebar.sidebar--collapsed .sidebar__brand,
  html.sidebar-collapsed #sidebar .sidebar__brand {
    justify-content: space-between;
    padding-left: 18px;
  }

  #btn_sidebar_collapse {
    display: none;
  }

  #btn_sidebar_close {
    display: block;
  }

  #sidebar_backdrop.sidebar_backdrop--visible {
    display: block;
  }
}