/* Use the same nav layout as other calculators (flex-wrap buttons) */
.calculator-nav { background: var(--header-bg); padding: 1rem 0; border-bottom: 2px solid var(--primary); }
.calculator-nav-container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.calc-nav-btn { background: none; color: #fff; border: 1px solid var(--primary); padding: 0.5rem 1rem; border-radius: 6px; font-size: 0.9rem; font-weight: 500; cursor: pointer; text-decoration: none; transition: all 0.2s; white-space: nowrap; }
.calc-nav-btn:hover { background: var(--primary); color: #fff; }
.calc-nav-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Main content */
.calculator-main { padding: 2rem 1rem 6rem 1rem; background: var(--bg); }
.calculator-container { max-width: 900px; margin: 0 auto; background: var(--card-bg); border-radius: 14px; box-shadow: 0 2px 12px var(--border); padding: 2rem; }
.calculator-description { color: var(--muted-text); text-align: center; margin-bottom: 1.2rem; }

.glossary-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0.8rem; }
.glossary-item { background: var(--card-bg); border: 1px solid var(--input-border); border-radius: 10px; padding: 0.9rem 1rem; }
.glossary-item h3 { margin: 0 0 0.35rem 0; color: var(--text); font-size: 1.05rem; }
.glossary-item p { margin: 0; color: var(--muted-text); font-size: 0.95rem; line-height: 1.45; }

@media (max-width: 768px) {
  .calculator-nav-container { justify-content: flex-start; overflow-x: auto; padding: 0 0.5rem; }
  .calc-nav-btn { font-size: 0.8rem; padding: 0.4rem 0.8rem; }
  .calculator-container { padding: 1.2rem; margin: 0 0.5rem; }
  .glossary-list { grid-template-columns: 1fr; }
}