.sm-message-stack {
  position: fixed;
  top: max(24px, env(safe-area-inset-top));
  left: 50%;
  z-index: 10050;
  display: grid;
  gap: 10px;
  width: min(calc(100vw - 32px), 520px);
  pointer-events: none;
  transform: translateX(-50%);
}

.sm-message {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  min-height: 42px;
  padding: 11px 14px;
  border: 1px solid rgba(17, 17, 17, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: #111111;
  box-shadow: 0 14px 42px rgba(15, 23, 42, 0.16);
  font: 500 14px/1.45 'Space Grotesk', 'Noto Sans SC', ui-sans-serif, system-ui, sans-serif;
  opacity: 0;
  pointer-events: auto;
  transform: translate3d(0, -10px, 0);
  transition: opacity 180ms ease, transform 180ms ease;
}

.sm-message.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.sm-message-icon {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  border-radius: 999px;
  background: #2563eb;
}

.sm-message-icon::before,
.sm-message-icon::after {
  content: '';
  position: absolute;
  background: #ffffff;
}

.sm-message-icon::before {
  left: 8px;
  top: 4px;
  width: 2px;
  height: 7px;
  border-radius: 999px;
}

.sm-message-icon::after {
  left: 8px;
  top: 12px;
  width: 2px;
  height: 2px;
  border-radius: 999px;
}

.sm-message-success .sm-message-icon {
  background: #16a34a;
}

.sm-message-success .sm-message-icon::before {
  left: 5px;
  top: 8px;
  width: 8px;
  height: 2px;
  border-radius: 999px;
  transform: rotate(-45deg);
}

.sm-message-success .sm-message-icon::after {
  left: 4px;
  top: 10px;
  width: 5px;
  height: 2px;
  border-radius: 999px;
  transform: rotate(45deg);
}

.sm-message-error .sm-message-icon {
  background: #dc2626;
}

.sm-message-error .sm-message-icon::before,
.sm-message-error .sm-message-icon::after {
  left: 5px;
  top: 8px;
  width: 8px;
  height: 2px;
  border-radius: 999px;
}

.sm-message-error .sm-message-icon::before {
  transform: rotate(45deg);
}

.sm-message-error .sm-message-icon::after {
  transform: rotate(-45deg);
}

.sm-message-warning .sm-message-icon {
  background: #d97706;
}

.sm-message-text {
  min-width: 0;
  overflow-wrap: anywhere;
}

html[data-theme='dark'] .sm-message {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(22, 26, 34, 0.96);
  color: #f7fbff;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.38);
}