/* ENG Calculator Shortcode styles */
.eng-calc-wrapper {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  max-width: 920px;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  background: #fff;
}

.eng-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.eng-tab-btn {
  padding: 8px 12px; border: 1px solid #e5e7eb; border-radius: 9999px; background: #40454be0;
  cursor: pointer; font-size: 14px;
}
.eng-tab-btn.active { background: #111827; color: #fff; border-color: #111827; }

.eng-panel { display: none; }
.eng-panel.active { display: block; }

/* Scientific calculator */
.calc-grid {
  display: grid; gap: 8px;
  grid-template-columns: repeat(6, minmax(0,1fr));
}
.calc-display {
  grid-column: 1 / -1;
  border: 1px solid #e5e7eb; border-radius: 12px; padding: 12px; font-size: 20px;
  background: #f9fafb; min-height: 48px; word-break: break-all;
}
.calc-btn {
  padding: 10px; border: 1px solid #e5e7eb; border-radius: 12px; background: #cae3e7;
  cursor: pointer; font-size: 14px; text-align: center; user-select: none;
}
.calc-btn:active { transform: translateY(1px); }

/* Forms */
.eng-row { display: flex; gap: 8px; align-items: center; margin: 8px 0; flex-wrap: wrap; }
.eng-row input, .eng-row select, .eng-row button, .eng-row textarea {
  padding: 8px; border: 1px solid #e5e7eb; border-radius: 10px; font-size: 14px;
}
.eng-row button { background: #111827; color: #fff; cursor: pointer; }
.eng-help { font-size: 12px; color: #6b7280; }

table.eng-matrix { border-collapse: collapse; }
table.eng-matrix td { border: 1px solid #e5e7eb; padding: 0; }
table.eng-matrix input { width: 70px; border: none; padding: 8px; text-align: center; }
.eng-output {
  border: 1px dashed #d1d5db; padding: 10px; border-radius: 12px; background: #f9fafb; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap;
}