[hidden] { display: none !important; }

.ui-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 1000;
  max-width: min(420px, calc(100vw - 32px));
  padding: 12px 16px;
  border: 1px solid var(--line, #eeeeee);
  border-radius: 12px;
  background: var(--text, #000000);
  color: #ffffff;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .18);
  font-size: .88rem;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 16px);
  transition: opacity .2s ease, transform .2s ease;
}
.ui-toast.visible { opacity: 1; transform: translate(-50%, 0); }
.ui-toast.error { background: #dc2626; border-color: #dc2626; }

.ui-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, .35);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s;
}
.ui-modal-backdrop.visible { opacity: 1; visibility: visible; }
.ui-modal {
  width: min(420px, 100%);
  padding: 22px;
  border: 1px solid var(--line, #eeeeee);
  border-radius: 16px;
  background: var(--bg-soft, #ffffff);
  color: var(--text, #000000);
  box-shadow: 0 18px 60px rgba(0, 0, 0, .2);
  transform: translateY(8px) scale(.98);
  transition: transform .2s ease;
}
.ui-modal-backdrop.visible .ui-modal { transform: translateY(0) scale(1); }
.ui-modal-title { margin-bottom: 8px; font-size: 1.05rem; font-weight: 600; }
.ui-modal-message { color: var(--muted, #999999); font-size: .9rem; line-height: 1.5; }
.ui-modal-input {
  width: 100%;
  min-height: 110px;
  margin-top: 14px;
  padding: 10px 12px;
  resize: vertical;
  border: 1px solid var(--line-strong, #dddddd);
  border-radius: 9px;
  background: var(--bg, #ffffff);
  color: var(--text, #000000);
  font: inherit;
  font-size: .9rem;
  outline: none;
}
.ui-modal-input:focus { border-color: var(--text, #000000); box-shadow: 0 0 0 3px rgba(0, 0, 0, .06); }
.ui-modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
.ui-modal-button { padding: 9px 14px; border-radius: 9px; font: inherit; font-size: .85rem; cursor: pointer; }
.ui-modal-cancel { border: 1px solid var(--line-strong, #dddddd); }
.ui-modal-confirm { background: var(--text, #000000); color: #ffffff; }
.ui-modal-confirm.danger { background: #dc2626; }

.ui-loading { position: relative; color: transparent !important; pointer-events: none; }
.ui-loading::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid rgba(255, 255, 255, .35);
  border-top-color: currentColor;
  border-radius: 50%;
  color: #ffffff;
  animation: ui-spin .7s linear infinite;
}
@keyframes ui-spin { to { transform: rotate(360deg); } }
@media (max-width: 500px) {
  .ui-toast { bottom: 88px; }
  .ui-modal-actions { flex-direction: column-reverse; }
  .ui-modal-button { width: 100%; }
}