.od-app {
  max-width: 900px;
  margin: 0 auto;
  font-family: inherit;
}

.od-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

#od-upload-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.od-btn {
  background: #1a1a2e;
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

.od-btn:hover {
  opacity: 0.9;
}

.od-btn-secondary {
  background: #0f766e;
  margin-top: 16px;
}

.od-status {
  margin: 12px 0;
  font-size: 14px;
  color: #444;
}

.od-result h3 {
  margin-top: 28px;
  margin-bottom: 8px;
  border-bottom: 2px solid #0f766e;
  padding-bottom: 4px;
}

.od-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.od-table th,
.od-table td {
  border: 1px solid #ddd;
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.od-table th {
  background: #f4f4f8;
  font-weight: 600;
}

.od-table td[contenteditable="true"] {
  background: #fffef5;
}

.od-table td[contenteditable="true"]:focus {
  outline: 2px solid #0f766e;
  background: #fff;
}

.od-notice {
  color: #b91c1c;
}

.od-btn-ghost {
  background: transparent;
  color: #444;
  border: 1px solid #ccc;
}

.od-spinner {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0;
  font-size: 14px;
  color: #444;
}

.od-spinner-circle {
  width: 18px;
  height: 18px;
  border: 3px solid #ddd;
  border-top-color: #0f766e;
  border-radius: 50%;
  animation: od-spin 0.8s linear infinite;
}

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

.od-table-block {
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px dashed #ccc;
}

.od-table-block-title {
  background: #1a1a2e;
  color: #fff;
  padding: 6px 12px;
  border-radius: 4px;
  display: inline-block;
}

.od-table-block h4 {
  margin-top: 16px;
  margin-bottom: 6px;
}

.od-samples-box {
  background: #f0fdfa;
  border: 1px solid #99f6e4;
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
}

#od-samples-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.od-btn-sample {
  background: #0f766e;
  font-size: 13px;
  padding: 8px 14px;
}

.od-btn-sample:hover {
  background: #0d5f58;
}

.od-erd-hint {
  font-size: 12px;
  color: #777;
  margin-top: 8px;
}

#od-erd {
  overflow-x: auto;
}