/* === Сетки, контейнеры, шапка, меню === */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-width: 420px;
  width: 100%;
  margin: 0 auto;
  background: var(--white);
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
  padding-top: env(safe-area-inset-top, 0px);
  overflow-x: hidden;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.chat-header .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  line-height: 0;
}
.chat-header .logo-svg {
  margin-bottom: 0;
  width: 180px;
  height: auto;
}

.burger-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--black);
  cursor: pointer;
  padding: 0.5rem;
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.side-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: var(--white);
  box-shadow: -2px 0 8px rgba(0,0,0,0.1);
  z-index: 1000;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  box-sizing: border-box;
}
.side-menu.open { right: 0; }
.side-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  font-weight: var(--font-weight-semibold);
  font-size: 1.2rem;
  color: var(--black);
}
.close-menu-btn {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--gray-500);
}
.side-menu-list { list-style: none; padding: 0; margin: 1rem 0; flex: 1; }
.side-menu-list li { margin-bottom: 0.5rem; }
.menu-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 0;
  color: var(--black);
  text-decoration: none;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.menu-item i { width: 24px; color: var(--gray-500); }
.menu-item:hover { color: var(--orange); }
.side-menu-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.logout-btn {
  background: none;
  border: none;
  color: var(--orange);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  padding: 0.8rem 0;
}

.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0s linear 0.3s;
}
.menu-overlay.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0s linear 0s;
}

.admin-main {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  background: var(--gray-100);
}

.back-btn {
  background: none;
  border: none;
  font-size: 1rem;
  color: var(--orange);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}