/* Основной экран приложения */
#app-screen {
  padding: 16px 16px 100px;
}

#app-screen h2 {
  font-size: 22px;
  margin-bottom: 20px;
}

/* Карточки */
.card {
  background: #ffffff;
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.05);
}

/* Нижняя навигация */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-around;
  gap: 4px;
  padding: 12px 8px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  background: #ffffff;
  border-top: 1px solid #e5e7eb;
  z-index: 100;
}

.bottom-nav button {
  flex: 1;
  border: none;
  background: transparent;
  color: #64748b;
  font-size: 12px;
  padding: 10px 2px;
  border-radius: 12px;
  cursor: pointer;
}

.bottom-nav button:active {
  background: #eef2ff;
  color: #4f46e5;
}