/* 全站 Toast：页面中上方居中，窄屏留边，颜色跟随主题。 */
.toast {
  --toast-tone: var(--green);
  --toast-duration: 2.6s;
  position: fixed; inset: auto; left: 50%;
  top: max(env(safe-area-inset-top, 0px), clamp(72px, 18vh, 180px));
  z-index: 200;
  display: none;
  margin: 0;
  width: max-content; max-width: min(560px, calc(100vw - 32px));
  min-height: 52px;
  box-sizing: border-box;
  padding: 14px 22px 14px 60px;
  transform: translateX(-50%);
  background: var(--panel);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border: 1px solid color-mix(in srgb, var(--toast-tone) 32%, var(--line));
  border-radius: 14px;
  color: var(--text);
  font-family: var(--sans); font-size: 14px; font-weight: 500; line-height: 1.6;
  white-space: pre-line; overflow-wrap: anywhere;
  box-shadow: inset 3px 0 0 var(--toast-tone), var(--shadow-md);
  backdrop-filter: blur(14px) saturate(125%);
  pointer-events: none;
  overflow: hidden;
  isolation: isolate;
}
.toast-icon {
  position: absolute; left: 17px; top: 50%;
  display: grid; place-items: center;
  width: 30px; height: 30px;
  transform: translateY(-50%);
  border-radius: 10px;
  background: color-mix(in srgb, var(--toast-tone) 16%, transparent);
  color: var(--toast-tone);
}
.toast::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px;
  border-radius: 0 0 14px 14px;
  background: var(--toast-tone);
  opacity: .65;
  transform: scaleX(1); transform-origin: left;
}
.toast.show { display: block; animation: toast-in 0.24s cubic-bezier(.2,.8,.2,1); }
.toast.show::after { animation: toast-progress var(--toast-duration) linear forwards; }
.toast.err { --toast-tone: var(--red); }
.toast::backdrop { background: transparent; pointer-events: none; }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(-12px) scale(.96); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes toast-progress { to { transform: scaleX(0); } }
@media (prefers-reduced-motion: reduce) {
  .toast.show, .toast.show::after { animation: none; }
  .toast.show::after { transform: scaleX(1); }
}

@media (max-width: 560px) {
  .toast { max-width: calc(100vw - 24px); padding-right: 16px; }
}