/* toastkit — every visual decision lives here. Override the custom properties
   on `.tk` (or on your own `[data-theme]`) and the library never notices. */

.tk {
  --tk-bg: #fff;
  --tk-fg: #111;
  --tk-muted: #666;
  --tk-border: #e4e4e4;
  --tk-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  --tk-radius: 10px;
  --tk-width: 356px;
  --tk-gap: 10px;
  --tk-inset: 16px;
  --tk-font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --tk-size: 14px;
  --tk-success: #16a34a;
  --tk-error: #dc2626;
  --tk-warning: #d97706;
  --tk-info: #2563eb;
  --tk-accent: var(--tk-fg);
  --tk-action-bg: var(--tk-fg);
  --tk-action-fg: var(--tk-bg);
  --tk-z: 9999;
  --tk-duration: 0.25s;
  --tk-exit: 0.15s;
  --tk-stack-offset: 10px;
  --tk-stack-scale: 0.05;

  position: fixed;
  z-index: var(--tk-z);
  display: flex;
  flex-direction: column;
  gap: var(--tk-gap);
  width: min(var(--tk-width), calc(100vw - 2 * var(--tk-inset)));
  margin: 0;
  padding: 0;
  font: var(--tk-size) / 1.4 var(--tk-font);
  color: var(--tk-fg);
  pointer-events: none;
}

.tk[data-theme="dark"] {
  --tk-bg: #1c1c1e;
  --tk-fg: #f2f2f2;
  --tk-muted: #a1a1a6;
  --tk-border: #333;
  --tk-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  .tk[data-theme="auto"] {
    --tk-bg: #1c1c1e;
    --tk-fg: #f2f2f2;
    --tk-muted: #a1a1a6;
    --tk-border: #333;
    --tk-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  }
}

.tk[data-position^="top"] { top: var(--tk-inset); }
.tk[data-position^="bottom"] { bottom: var(--tk-inset); }
.tk[data-position$="left"] { left: var(--tk-inset); }
.tk[data-position$="right"] { right: var(--tk-inset); }
.tk[data-position$="center"] { left: 50%; transform: translateX(-50%); }

.tk-toast {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 12px 12px 14px;
  background: var(--tk-bg);
  color: var(--tk-fg);
  border: 1px solid var(--tk-border);
  border-radius: var(--tk-radius);
  box-shadow: var(--tk-shadow);
  pointer-events: auto;
  touch-action: pan-y;
  user-select: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
  animation: tk-in var(--tk-duration) ease-out;
}

/* Hover bridge over the gap: the region ignores the pointer. */
.tk-toast::after { content: ""; position: absolute; inset: 100% 0 auto; height: calc(var(--tk-gap) + 2px); }

.tk-toast[data-swiping] { transition: none; cursor: grabbing; }

.tk-toast:focus-visible { outline: 2px solid var(--tk-accent); outline-offset: 2px; }
.tk-toast[data-state="closing"] { animation: tk-out var(--tk-exit) ease-in forwards; }

.tk-body { flex: 1 1 auto; min-width: 0; }
.tk-title { font-weight: 600; overflow-wrap: anywhere; }
.tk-desc { margin-top: 2px; color: var(--tk-muted); overflow-wrap: anywhere; }

.tk-icon { display: none; flex: none; width: 16px; height: 16px; border-radius: 50%; }
.tk-icon::before { display: block; width: 16px; height: 16px; font-size: 11px; line-height: 16px; text-align: center; color: #fff; }
.tk-toast[data-kind="success"] .tk-icon,
.tk-toast[data-kind="error"] .tk-icon,
.tk-toast[data-kind="warning"] .tk-icon,
.tk-toast[data-kind="info"] .tk-icon,
.tk-toast[data-kind="loading"] .tk-icon { display: block; }
.tk-toast[data-kind="success"] .tk-icon { background: var(--tk-success); }
.tk-toast[data-kind="success"] .tk-icon::before { content: "\2713"; }
.tk-toast[data-kind="error"] .tk-icon { background: var(--tk-error); }
.tk-toast[data-kind="error"] .tk-icon::before { content: "\2715"; }
.tk-toast[data-kind="warning"] .tk-icon { background: var(--tk-warning); }
.tk-toast[data-kind="warning"] .tk-icon::before { content: "!"; font-weight: 700; }
.tk-toast[data-kind="info"] .tk-icon { background: var(--tk-info); }
.tk-toast[data-kind="info"] .tk-icon::before { content: "i"; font-weight: 700; font-style: italic; }
.tk-toast[data-kind="loading"] .tk-icon {
  border: 2px solid var(--tk-border);
  border-top-color: var(--tk-fg);
  animation: tk-spin 0.8s linear infinite;
}
/* `icon` option: any kind, no badge. */
.tk-toast .tk-icon:not(:empty) { display: block; width: auto; height: auto; line-height: 1; background: none; border: 0; animation: none; }
.tk-toast .tk-icon:not(:empty)::before { content: none; }

.tk-action,
.tk-close {
  font: inherit;
  cursor: pointer;
  border: 0;
  border-radius: calc(var(--tk-radius) - 4px);
}
.tk-action {
  flex: none;
  padding: 6px 10px;
  font-size: 0.9em;
  font-weight: 600;
  color: var(--tk-action-fg);
  background: var(--tk-action-bg);
}
.tk-close {
  flex: none;
  margin-left: auto;
  width: 24px;
  height: 24px;
  padding: 0;
  font-size: 18px;
  line-height: 1;
  color: var(--tk-muted);
  background: transparent;
}
.tk-close:hover { color: var(--tk-fg); }
.tk-action:focus-visible,
.tk-close:focus-visible { outline: 2px solid var(--tk-accent); outline-offset: 2px; }

@keyframes tk-in {
  from { opacity: 0; transform: translateY(var(--tk-enter, 8px)) scale(0.98); }
  to { opacity: 1; transform: none; }
}
@keyframes tk-out {
  to { opacity: 0; transform: var(--tk-out, scale(0.96)); }
}

/* Collapsed stack: toasts sit behind the newest one, expand on hover or focus. */
.tk[data-stack="collapse"]:not(:hover):not(:focus-within) { display: grid; }
.tk[data-stack="collapse"]:not(:hover):not(:focus-within) .tk-toast { grid-area: 1 / 1; }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) { align-items: end; }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) .tk-toast:nth-last-child(1) { z-index: 3; }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) .tk-toast:nth-last-child(2) { z-index: 2; }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) .tk-toast:nth-last-child(3) { z-index: 1; }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) .tk-toast:nth-last-child(2) { transform: translateY(calc(-1 * var(--tk-stack-offset))) scale(calc(1 - var(--tk-stack-scale))); }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) .tk-toast:nth-last-child(3) { transform: translateY(calc(-2 * var(--tk-stack-offset))) scale(calc(1 - 2 * var(--tk-stack-scale))); }
.tk[data-stack="collapse"][data-position^="bottom"]:not(:hover):not(:focus-within) .tk-toast:nth-last-child(n + 4) { opacity: 0; pointer-events: none; }
.tk[data-stack="collapse"][data-position^="top"]:not(:hover):not(:focus-within) { align-items: start; }
.tk[data-stack="collapse"][data-position^="top"]:not(:hover):not(:focus-within) .tk-toast:nth-child(1) { z-index: 3; }
.tk[data-stack="collapse"][data-position^="top"]:not(:hover):not(:focus-within) .tk-toast:nth-child(2) { z-index: 2; transform: translateY(var(--tk-stack-offset)) scale(calc(1 - var(--tk-stack-scale))); }
.tk[data-stack="collapse"][data-position^="top"]:not(:hover):not(:focus-within) .tk-toast:nth-child(3) { z-index: 1; transform: translateY(calc(2 * var(--tk-stack-offset))) scale(calc(1 - 2 * var(--tk-stack-scale))); }
.tk[data-stack="collapse"][data-position^="top"]:not(:hover):not(:focus-within) .tk-toast:nth-child(n + 4) { opacity: 0; pointer-events: none; }
@keyframes tk-spin { to { transform: rotate(360deg); } }

.tk[data-position^="top"] .tk-toast { --tk-enter: -8px; }

@media (prefers-reduced-motion: reduce) {
  .tk-toast { transition: none; }
  .tk-toast,
  .tk-toast[data-state="closing"] { animation: none; }
  .tk-toast[data-state="closing"] { opacity: 0; }
}