.system-maintenance-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  font-family: inherit;
}

.system-maintenance-modal.is-active {
  display: block;
}

.system-maintenance-modal .modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.system-maintenance-modal .modal-panel {
  position: relative;
  margin: 120px auto;
  width: min(520px, calc(100% - 32px));
  background-color: #ffffff;
  border-radius: 16px;
  padding: 64px 56px 56px;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
  text-align: center;
  color: #111111;
}

@media (max-width: 480px) {
  .system-maintenance-modal .modal-panel {
    margin: 72px auto;
    padding: 48px 24px 40px;
    border-radius: 20px;
  }
}

.system-maintenance-modal .modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  border: none;
  background: none;
  font-size: 16px;
  font-weight: 600;
  color: #666666;
  cursor: pointer;
  padding: 8px 12px;
}

.system-maintenance-modal .modal-close:focus-visible {
  outline: 2px solid #111111;
  outline-offset: 2px;
}

.system-maintenance-modal .modal-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 32px;
}

.system-maintenance-modal .modal-icon svg {
  width: 100%;
  height: 100%;
}

.system-maintenance-modal .modal-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.system-maintenance-modal h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
}

@media (max-width: 480px) {
  .system-maintenance-modal h2 {
    font-size: 24px;
  }
}

.system-maintenance-modal .modal-intro {
  font-size: 16px;
  line-height: 1.7;
  color: #444444;
  margin-bottom: 6px;
}

.system-maintenance-modal dl {
  margin: 28px 0;
  padding: 24px 0;
  border-top: 1px solid #e5e5e5;
  border-bottom: 1px solid #e5e5e5;
}

.system-maintenance-modal dl div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.system-maintenance-modal dl div:last-child {
  margin-bottom: 0;
}

.system-maintenance-modal dt {
  font-weight: 700;
  font-size: 15px;
  color: #111111;
}

.system-maintenance-modal dd {
  margin: 0;
  font-size: 15px;
  color: #555555;
  line-height: 1.6;
}

.system-maintenance-modal .modal-note {
  font-size: 14px;
  color: #777777;
  line-height: 1.6;
  font-style: italic;
}

.system-maintenance-modal .modal-panel {
  opacity: 0;
  transform: translateY(24px);
}

.system-maintenance-modal .modal-backdrop {
  opacity: 0;
}

.system-maintenance-modal .modal-backdrop,
.system-maintenance-modal .modal-panel {
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.system-maintenance-modal.is-active .modal-backdrop {
  opacity: 1;
}

.system-maintenance-modal.is-active .modal-panel {
  opacity: 1;
  transform: translateY(0);
}