.diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0.35rem;
  align-items: stretch;
  margin-bottom: 0.85rem;
}

@media (max-width: 860px) {
  .diagram {
    grid-template-columns: 1fr;
  }
  .arrow-col {
    transform: rotate(90deg);
    justify-self: center;
    padding: 0.25rem 0;
  }
}

.box {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface2);
  padding: 0.65rem 0.75rem;
  min-height: 9rem;
  transition: border-color 0.2s, box-shadow 0.25s;
}

.box h3 {
  margin: 0 0 0.2rem;
  font-size: 0.9rem;
  font-family: var(--mono);
  font-weight: 650;
}

.box .sub {
  font-size: 0.72rem;
  font-family: var(--mono);
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.box pre {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 4.5rem;
}

.box.is-flash {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 25%, transparent);
}

.box.is-match { border-color: color-mix(in srgb, #047857 40%, var(--line)); }
.box.is-diff { border-color: color-mix(in srgb, #b45309 45%, var(--line)); }

.arrow-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  min-width: 5.5rem;
}

.arrow {
  text-align: center;
  padding: 0.35rem 0.25rem;
  border-radius: 6px;
  border: 1px dashed transparent;
  line-height: 1.25;
}

.arrow.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  font-weight: 650;
}

.arrow .cmd {
  display: block;
  font-size: 0.68rem;
}

.status-pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  margin-bottom: 0.65rem;
}

.status-pill.clean { color: #047857; border-color: #047857; }
.status-pill.modified { color: #b45309; border-color: #b45309; }
.status-pill.staged { color: #0369a1; border-color: #0369a1; }
.status-pill.both { color: var(--err); border-color: var(--err); }

.editor-row {
  display: grid;
  gap: 0.55rem;
}

.editor-row textarea {
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.4;
  width: 100%;
  min-height: 5.5rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #1a222c;
  color: #e8eef4;
  resize: vertical;
}

.action-grid {
  display: grid;
  gap: 0.45rem;
}

.action-grid button {
  font-family: var(--mono);
  font-size: 0.8rem;
  text-align: left;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

.action-grid button:hover { border-color: var(--accent); }
.action-grid button:disabled { opacity: 0.45; cursor: not-allowed; }

.flow-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-top: 0.75rem;
}

@media (max-width: 720px) {
  .flow-legend { grid-template-columns: 1fr; }
}

.flow-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem 0.7rem;
  background: var(--surface2);
  font-size: 0.85rem;
}

.flow-card h3 {
  margin: 0 0 0.3rem;
  font-size: 0.9rem;
}

.flow-card code {
  font-size: 0.8rem;
}

.log-box {
  font-family: var(--mono);
  font-size: 0.8rem;
  margin: 0;
  padding: 0.65rem 0.75rem;
  background: #1a222c;
  color: #e8eef4;
  border-radius: 8px;
  border: 1px solid var(--line);
  min-height: 6.5rem;
  max-height: 11rem;
  overflow: auto;
  white-space: pre-wrap;
}

.log-box .ok { color: #8fd4a8; }
.log-box .warn { color: #f0c674; }
.log-box .muted { color: #7a8a9a; }
.log-box .flow { color: #9ecbff; }

.commit-meta {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.65rem;
}

.commit-meta strong { color: var(--text); }

.cheat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.cheat-table th,
.cheat-table td {
  text-align: left;
  padding: 0.4rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.hint-list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.hint-list li { margin: 0.35rem 0; }