/* アプリ共通モーダル（alert / confirm / 入力）— ブラウザネイティブの代替 */
#app-dialog-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 120000;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
  box-sizing: border-box;
  background: rgba(18, 22, 38, 0.52);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  overflow-x: hidden;
  overflow-y: auto;
}

#app-dialog-overlay.app-dialog--open {
  display: flex;
}

#app-dialog-overlay .app-dialog-panel {
  width: 100%;
  max-width: 420px;
  min-width: 0;
  max-height: min(88vh, 560px);
  overflow-x: hidden;
  overflow-y: auto;
  background: linear-gradient(165deg, #ffffff 0%, #f8f9fc 100%);
  border-radius: 18px;
  box-shadow:
    0 4px 6px rgba(30, 40, 80, 0.06),
    0 24px 48px rgba(20, 30, 60, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.9);
  position: relative;
}

#app-dialog-overlay .app-dialog-panel::before {
  content: "";
  display: block;
  height: 4px;
  border-radius: 18px 18px 0 0;
  background: linear-gradient(90deg, #5c6bc0, #7e57c2 45%, #ec407a);
  margin: -1px 0 0 0;
  width: 100%;
  box-sizing: border-box;
}

#app-dialog-overlay .app-dialog-inner {
  padding: 22px 22px 20px;
  min-width: 0;
  box-sizing: border-box;
}

#app-dialog-overlay .app-dialog-title {
  margin: 0 0 10px;
  font-size: 1.12rem;
  font-weight: 700;
  color: #1a1d2e;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
  max-width: 100%;
}

#app-dialog-overlay .app-dialog-message {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.65;
  color: #3d4152;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
}

#app-dialog-overlay .app-dialog-message.app-dialog-message--success {
  color: #2e7d32;
}

#app-dialog-overlay .app-dialog-message.app-dialog-message--danger {
  color: #c62828;
}

#app-dialog-overlay .app-dialog-fields {
  margin: 0 0 18px;
  min-width: 0;
  max-width: 100%;
}

#app-dialog-overlay .app-dialog-field {
  margin-bottom: 14px;
}

#app-dialog-overlay .app-dialog-field:last-child {
  margin-bottom: 0;
}

#app-dialog-overlay .app-dialog-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #555b6e;
  margin-bottom: 6px;
}

#app-dialog-overlay .app-dialog-field input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  font-size: 15px;
  border: 1px solid #d0d5e0;
  border-radius: 10px;
  background: #fff;
  color: #1a1d2e;
}

#app-dialog-overlay .app-dialog-field input:focus {
  outline: none;
  border-color: #7e57c2;
  box-shadow: 0 0 0 2px rgba(126, 87, 194, 0.22);
}

#app-dialog-overlay .app-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

#app-dialog-overlay .app-dialog-btn {
  min-width: 96px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  border: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease, opacity 0.15s;
}

#app-dialog-overlay .app-dialog-btn:active:not(:disabled) {
  transform: scale(0.98);
}

#app-dialog-overlay .app-dialog-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

#app-dialog-overlay .app-dialog-btn--primary {
  background: linear-gradient(135deg, #5c6bc0, #7e57c2);
  color: #fff;
  box-shadow: 0 2px 8px rgba(94, 87, 200, 0.35);
}

#app-dialog-overlay .app-dialog-btn--primary:hover:not(:disabled) {
  box-shadow: 0 4px 14px rgba(94, 87, 200, 0.45);
}

#app-dialog-overlay .app-dialog-btn--secondary {
  background: #eef0f5;
  color: #3d4152;
}

#app-dialog-overlay .app-dialog-btn--secondary:hover:not(:disabled) {
  background: #e2e5ed;
}

#app-dialog-overlay .app-dialog-btn--busy-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

#app-dialog-overlay .app-dialog-spinner {
  width: 15px;
  height: 15px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: app-dialog-spin 0.65s linear infinite;
}

@keyframes app-dialog-spin {
  to {
    transform: rotate(360deg);
  }
}

button.app-dialog-target-busy .app-dialog-inline-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 8px;
  vertical-align: -2px;
  border: 2px solid rgba(0, 0, 0, 0.12);
  border-top-color: #5c6bc0;
  border-radius: 50%;
  animation: app-dialog-spin-dark 0.65s linear infinite;
}

@keyframes app-dialog-spin-dark {
  to {
    transform: rotate(360deg);
  }
}