/* ════════════════════════════════════════════════════════════════════════
   DS Toast primitive  (DS primitives phase — primitive 2 of 3)
   API: window.ds.toast(message, variant, options)  ·  Controller: static/js/ds-toast.js
   Consumes tokens.css. Stacks newest-on-top, max 3 visible (extras queue).
   ════════════════════════════════════════════════════════════════════════ */

.ds-toast-container {
  position: fixed; z-index: var(--z-toast);    /* above modals (--z-modal) */
  top: 16px; right: 16px;
  display: flex; flex-direction: column; gap: 10px;
  width: 360px; max-width: calc(100vw - 32px);
  pointer-events: none;                         /* let clicks pass between toasts */
}
@media (max-width: 640px) {
  .ds-toast-container {
    top: 12px; left: 50%; right: auto; transform: translateX(-50%);
    width: calc(100vw - 24px);                  /* top-center on mobile */
  }
}

.ds-toast {
  pointer-events: auto;
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--muted);          /* variant recolors this */
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 12px 14px;
  opacity: 0; transform: translateX(16px);      /* enter-from */
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
@media (max-width: 640px) { .ds-toast { transform: translateY(-12px); } }
.ds-toast.show { opacity: 1; transform: none; }
.ds-toast.hide { opacity: 0; transform: translateX(16px); }

.ds-toast-icon { flex-shrink: 0; width: 18px; height: 18px; margin-top: 1px; color: var(--muted); }
.ds-toast-content { flex: 1; min-width: 0; }
.ds-toast-msg { font-size: var(--text-base); color: var(--text); line-height: 1.5; word-wrap: break-word; }
.ds-toast-action {
  margin-top: 6px; display: inline-block;
  background: none; border: none; padding: 0; cursor: pointer;
  font-size: var(--text-base); font-weight: 600; color: var(--accent);
}
.ds-toast-action:hover { text-decoration: underline; }
.ds-toast-close {
  flex-shrink: 0;
  width: 44px; height: 44px; margin: -12px -12px -12px 0;   /* 44×44 tap target */
  display: flex; align-items: center; justify-content: center;
  border: none; background: none; cursor: pointer;
  color: var(--gray-400); border-radius: var(--radius-md);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.ds-toast-close:hover { color: var(--navy); background: var(--gray-100); }
.ds-toast-close:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Variants: left border + icon tint ── */
.ds-toast--success { border-left-color: var(--success); } .ds-toast--success .ds-toast-icon { color: var(--success); }
.ds-toast--warning { border-left-color: var(--warning); } .ds-toast--warning .ds-toast-icon { color: var(--warning); }
.ds-toast--error   { border-left-color: var(--error);   } .ds-toast--error   .ds-toast-icon { color: var(--error); }
.ds-toast--info    { border-left-color: var(--info);    } .ds-toast--info    .ds-toast-icon { color: var(--info); }
.ds-toast--neutral { border-left-color: var(--muted);   } .ds-toast--neutral .ds-toast-icon { color: var(--muted); }