/* =========================
   UI Toast (alerts)
========================= */
.ui-toast-root{
  position: fixed;
  left: 0;
  right: 0;
  top: 40%;
  bottom: auto;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  z-index: 9999;
  pointer-events: none;
  padding: 0 16px;
  box-sizing: border-box;
}

.ui-toast{
  pointer-events: auto;
  box-sizing: border-box;
  width: min(720px, 100%);
  max-width: 72ch; /* clamp long messages */
  border-radius: 16px;
  padding: 14px 14px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: start;

  border: 1px solid var(--border-control);
  background: var(--surface-control);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-toast);

  opacity: 0;
  transform: translateY(10px) scale(0.98);
  transition: opacity 0.18s ease, transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

/* subtle type accent (not loud) */
.ui-toast--info{   border-color: var(--border-control); }
.ui-toast--success{border-color: var(--toast-success-border); }
.ui-toast--warning{border-color: var(--toast-warning-border); }
.ui-toast--error{  border-color: var(--toast-error-border); }

.ui-toast.is-visible{ opacity: 1; transform: translateY(0) scale(1); }
.ui-toast.is-hiding{ opacity: 0; transform: translateY(8px) scale(0.98); }

.ui-toast-text{
  color: var(--text-control);
  letter-spacing: 0.02em;
  line-height: 1.55;
  font-weight: 400;
  font-size: 0.98rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.ui-toast-close{
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-toast-close);
  font-size: 1.35rem;
  line-height: 1;
  padding: 0 6px;
  cursor: pointer;
  border-radius: 10px;
  transition: background-color 0.16s ease, color 0.16s ease, transform 0.16s ease;
}
.ui-toast-close:hover{
  background: var(--surface-control-neutral);
  color: var(--text-panel-control);
  transform: translateY(-1px);
}

/* =========================
   UI Confirm (modal)
========================= */
.ui-confirm-root{
  position: fixed;
  inset: 0;
  z-index: 10000;
}

.ui-confirm-overlay{
  position: absolute;
  inset: 0;
  background: var(--overlay-dialog);
  opacity: 0;
  transition: opacity 0.18s ease;
}
.ui-confirm-overlay.is-visible{ opacity: 1; }

.ui-confirm{
  position: absolute;
  left: 50%;
  top: 50%;
  box-sizing: border-box;
  width: min(560px, 100%);
  transform: translate(-50%, -48%) scale(0.98);
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;

  border-radius: 18px;
  border: 1px solid var(--border-control);
  background: var(--surface-control);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-confirm);
  padding: 16px 16px 14px;
}

.ui-confirm.is-visible{
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.ui-confirm-title{
  font-size: 0.78rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--text-confirm-title);
}

.ui-confirm-body{
  margin-top: 10px;
  color: var(--text-panel-control);
  line-height: 1.6;
  font-size: 1rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.ui-confirm-actions{
  margin-top: 14px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* buttons (Cancel passive / Continue strong) */
.ui-btn{
  border-radius: 14px;
  padding: 10px 14px;
  border: 1px solid var(--border-control);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  cursor: pointer;
}

.ui-btn--ghost{
  background: var(--surface-card-muted);
  color: var(--text-meta);
}
.ui-btn--ghost:hover{
  background: var(--surface-subtle);
  border-color: var(--border-strong);
  color: var(--text-panel-control);
}

.ui-btn--solid{
  background: var(--accent-surface-hover);
  border-color: var(--accent-border-soft);
  color: var(--text-solid-action);
}
.ui-btn--primary:hover{
  background: var(--accent-surface-confirm-hover);
  border-color: var(--accent-border-confirm-hover);
}
.ui-btn--danger{
  background: var(--status-danger-confirm-surface);
  border-color: var(--status-danger-confirm-border);
}
.ui-btn--danger:hover{
  background: var(--status-danger-confirm-surface-hover);
  border-color: var(--status-danger-confirm-border-hover);
}

@media (prefers-reduced-motion: reduce){
  .ui-toast, .ui-confirm, .ui-confirm-overlay{ transition: none; }
}


/* =========================
   Post processing state
========================= */
.post-processing-box{
  display: flex;
  align-items: center;
  justify-content: center;

  width: 100%;
  min-height: 0;
  aspect-ratio: 3 / 4;
  box-sizing: border-box;

  background: var(--surface-post-processing);
  border: 1px dashed var(--border-post-processing);
  color: var(--text-post-processing);
  text-align: center;
  padding: 1rem;
}

.post-processing-box::before{
  content: "";
  width: 22px;
  height: 22px;
  margin-right: 0.65rem;
  border: 2px solid var(--spinner-processing-track);
  border-top-color: var(--spinner-processing-head);
  border-radius: 999px;
  animation: seemeSpin 0.8s linear infinite;
}

.post-processing-box.is-failed{
  border-color: var(--status-processing-failed-border);
  color: var(--status-processing-failed-text);
}

.post-processing-box.is-failed::before{
  display: none;
}

.post-processing-text{
  font-size: 0.95rem;
  font-weight: 600;
}

@keyframes seemeSpin{
  to{ transform: rotate(360deg); }
}

/* === GLOBAL UTILITIES === */
.hidden { display: none !important; }

.text-center {
  text-align: center;
}

.register-section-end {
  justify-content: flex-end;
}

.is-initially-hidden {
  display: none;
}