.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  height: 100vh;
  position: fixed;
  border-right: 1px solid rgba(34, 83, 120, 0.3);
  transition: all 0.3s ease;
  z-index: 100;
  background-color: rgb(34, 83, 120);
  color: white;
}

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

.sidebar.collapsed .nav {
  display: none;
}

@media (min-width: 769px) {
  .sidebar:not(.collapsed) .nav {
    display: block;
  }
}

/* Гарантируем видимость кнопки и логотипа всегда */
.logo-btn,
.logo-container,
.collapse-btn,
.logo-image {
  display: flex !important;
  opacity: 1 !important;
  visibility: visible !important;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  justify-content: space-between;
  width: 100%;
}

.logo-image {
  width: 30px;
  height: 30px;
  object-fit: contain;
  transition: 0.3s;
}

.sidebar.collapsed .logo-image {
  width: 40px;
  height: 40px;
}

.collapse-btn {
  font-size: 24px;
  font-family: Arial, sans-serif;
  width: 30px;
  height: 30px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  transform-origin: center;
  transform: rotate(0deg);
  color: white;
}

.sidebar:not(.collapsed) .collapse-btn {
  transform: rotate(180deg);
}

.sidebar-header {
  padding: 16px;
  border-bottom: none;
  border-top: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-btn {
  background: none;
  border: none;
  font-size: 30px;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--text-primary);
  width: 100%;
}

.nav {
  padding: 8px;
  display: none;
}

.sidebar:not(.collapsed) .nav {
  display: block;
}

.nav-btn {
  display: block;
  padding: 12px;
  border-radius: 6px;
  border: none;
  background: none;
  color: white;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.nav-btn:hover {
  background: rgba(255,255,255,0.1);
}

.nav-btn.active {
  background: #e5e7eb;
}

.sidebar-footer {
  position: fixed;
  bottom: 0;
  width: inherit;
  background: rgb(34, 83, 120);
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar.collapsed .sidebar-footer {
  width: var(--sidebar-collapsed);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 8px;
}

.auth-panel {
  width: 100%;
}

.auth-btn {
  width: 100%;
  padding: 10px;
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

.auth-btn:hover {
  background: #0d8a6d;
}

.user-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-color);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
  transition: all 0.3s ease;
}

.avatar-container {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid white;
  flex-shrink: 0;
}

.user-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-name {
  flex-grow: 1;
  text-align: left;
}

/* Стили для свернутого состояния */
.sidebar.collapsed .user-btn {
  padding: 4px;
  background: none;
  justify-content: center;
}

.sidebar.collapsed .user-name {
  display: none;
}

.sidebar.collapsed .avatar-container {
  width: 48px;
  height: 48px;
  margin: 0;
}

.sidebar.collapsed .user-panel {
  width: 100%;
}

.user-menu {
  position: absolute;
  bottom: 100%;
  left: 0;
  width: 180px;
  background: white;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  margin-bottom: 8px;
  overflow: hidden;
}

.user-menu.hidden {
  display: none;
}

.menu-btn {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
  color: #333;
  font-size: 14px;
  white-space: nowrap;
}

.menu-btn {
  position: relative;
}

.menu-btn:hover {
  background: #f5f5f5;
}

.menu-unread-badge {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  background: var(--accent-color);
  color: white;
  border-radius: 10px;
  min-width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  padding: 0 6px;
}

.user-btn:hover {
  background: #0d8a6d;
}

@media (max-width: 768px) {
  .sidebar {
    width: var(--sidebar-width);
    transform: none;
    transition: all 0.3s ease;
  }

  .sidebar.collapsed {
    width: auto;
    background: none;
  }

  .sidebar.collapsed .sidebar-header {
    position: relative !important;
    width: 100% !important;
    height: 60px !important;
    background-color: rgb(34, 83, 120);
    border: none;
    display: flex !important;
    align-items: center !important;
    padding: 0 15px !important;
  }

  .sidebar:not(.collapsed) {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
  }

  .sidebar.collapsed .nav {
    display: none;
  }

  .logo-container {
    padding: 10px;
    display: flex !important;
  }

  .collapse-btn {
    display: flex !important;
    color: white;
    margin-left: 10px;
  }

  .logo-image {
    width: 30px;
    height: 30px;
  }
}