.app-message-box-overlay {
  position: fixed;
  inset: 0;
  z-index: 2500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  box-sizing: border-box;
}

.app-message-box-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 28, 45, 0.32);
  backdrop-filter: blur(3px);
}

.app-message-box {
  --app-message-box-accent: var(--primary-color-2);
  position: relative;
  width: min(100%, 32rem);
  border-radius: 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, #fff 100%);
  box-shadow: 0 24px 60px rgba(16, 24, 40, 0.24);
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 1.2rem 1.2rem 1rem 1.2rem;
  box-sizing: border-box;
  color: var(--primary-color-3);
  outline: none;
}
.app-message-box--info {
  --app-message-box-accent: var(--primary-color-2);
}
.app-message-box--question {
  --app-message-box-accent: var(--secondary-color-6);
}
.app-message-box--warning {
  --app-message-box-accent: var(--secondary-color-3);
}
.app-message-box--error {
  --app-message-box-accent: var(--secondary-color-1);
}
.app-message-box--plain {
  --app-message-box-accent: var(--primary-color-3);
}
.app-message-box__header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.app-message-box__icon {
  flex: 0 0 auto;
  width: 2.4rem;
  height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--app-message-box-accent);
}
.app-message-box__icon-image {
  width: 2.4rem;
  height: 2.4rem;
  background-color: currentColor;
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
}
.app-message-box__heading {
  min-width: 0;
  flex: 1 1 auto;
}
.app-message-box__title {
  color: var(--primary-color-1);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.25;
}
.app-message-box__message {
  margin-top: 0.9rem;
  padding-left: 3.3rem;
  color: var(--primary-color-3);
  font-size: 0.96rem;
  font-weight: 400;
  line-height: 1.45;
  white-space: pre-wrap;
}
.app-message-box__actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.15rem;
}
.app-message-box__button {
  min-width: 5.1rem;
  min-height: 2rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--primary-color-3-light3);
  background: #fff;
  color: var(--primary-color-3);
  font-family: var(--app-font);
  font-size: 0.86rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.app-message-box__button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(16, 24, 40, 0.1);
}
.app-message-box__button:focus-visible {
  outline: 2px solid var(--app-message-box-accent);
  outline-offset: 2px;
}
.app-message-box__button--primary {
  border-color: transparent;
  background: var(--app-message-box-accent);
  color: #fff;
}

@media (max-width: 640px) {
  .app-message-box-overlay {
    align-items: flex-end;
    padding: 1rem;
  }
  .app-message-box {
    width: 100%;
    border-radius: 1.05rem 1.05rem 0.85rem 0.85rem;
  }
  .app-message-box__message {
    padding-left: 0;
  }
  .app-message-box__actions {
    justify-content: stretch;
  }
  .app-message-box__button {
    flex: 1 1 calc(50% - 0.55rem);
    min-width: 0;
  }
}