.button-row.compact {
  margin-top: 18px;
}

.button-row.compact .button,
.case-modal .button {
  cursor: pointer;
}

.case-modal {
  width: min(1080px, calc(100% - 32px));
  max-height: 86vh;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
}

.case-modal::backdrop {
  background: rgba(0, 0, 0, 0.72);
}

.case-modal-inner {
  max-height: 86vh;
  overflow: auto;
  padding: 26px;
}

.case-modal-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.case-modal-header h2 {
  margin: 12px 0 0;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.08;
}

.case-report {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.case-section {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.case-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.case-section h3 {
  margin: 0;
  font-size: 1.45rem;
  line-height: 1.15;
}

.case-section h4 {
  margin: 0;
  font-size: 1rem;
}

.case-section p {
  color: var(--muted);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.case-grid article,
.case-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 48%, transparent);
}

.case-grid article {
  padding: 15px;
}

.case-grid p {
  margin-bottom: 0;
}

.flow-diagram {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 7%, transparent), transparent 44%),
    color-mix(in srgb, var(--bg) 54%, transparent);
}

.flow-line {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) minmax(72px, 0.32fr) minmax(190px, 1fr) minmax(72px, 0.32fr) minmax(190px, 1fr);
  gap: 12px;
  align-items: stretch;
}

.backup-diagram .flow-line {
  grid-template-columns: minmax(220px, 1fr) minmax(96px, 0.38fr) minmax(220px, 1fr);
  max-width: 720px;
}

.flow-node {
  display: grid;
  gap: 8px;
  align-content: start;
  min-height: 132px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
}

.flow-node span {
  width: fit-content;
  padding: 4px 7px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 999px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
}

.flow-node strong {
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.15;
}

.flow-node small {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.flow-node.emphasis {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent),
    color-mix(in srgb, var(--panel) 92%, transparent);
}

.flow-node.destination {
  min-height: 124px;
}

.flow-arrow {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  color: var(--accent);
  text-align: center;
}

.flow-arrow::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.flow-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: calc(50% - 5px);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 9px solid var(--accent);
}

.flow-arrow span {
  position: relative;
  z-index: 1;
  max-width: 120px;
  padding: 5px 7px;
  border: 1px solid color-mix(in srgb, var(--accent) 44%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  font-size: 11px;
  font-weight: 900;
  line-height: 1.15;
}

.backup-targets {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
  padding-top: 26px;
}

.backup-targets::before {
  content: "";
  position: absolute;
  left: 16%;
  right: 16%;
  top: 8px;
  height: 1px;
  background: color-mix(in srgb, var(--accent) 52%, transparent);
}

.backup-targets .flow-node {
  position: relative;
}

.backup-targets .flow-node::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -19px;
  width: 1px;
  height: 18px;
  background: color-mix(in srgb, var(--accent) 52%, transparent);
}

.diagram-caption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.case-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.case-list li {
  padding: 14px 16px;
  color: var(--muted);
}

.case-list strong {
  color: var(--text);
}

@media (max-width: 980px) {
  .case-grid,
  .flow-line,
  .backup-diagram .flow-line,
  .backup-targets {
    grid-template-columns: 1fr;
  }

  .backup-diagram .flow-line {
    max-width: none;
  }

  .flow-arrow {
    min-height: 54px;
  }

  .flow-arrow::before {
    left: 50%;
    right: auto;
    top: 0;
    bottom: 0;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, transparent, var(--accent), transparent);
  }

  .flow-arrow::after {
    right: auto;
    left: calc(50% - 5px);
    top: auto;
    bottom: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 9px solid var(--accent);
    border-bottom: 0;
  }

  .backup-targets {
    padding-top: 0;
  }

  .backup-targets::before,
  .backup-targets .flow-node::before {
    display: none;
  }
}

@media (max-width: 560px) {
  .case-modal {
    width: calc(100% - 20px);
    max-height: 90vh;
  }

  .case-modal-inner {
    max-height: 90vh;
    padding: 18px;
  }

  .case-modal-header {
    flex-direction: column;
  }

  .flow-diagram {
    padding: 14px;
  }
}