.convert-tab{background:#374151;color:white;border:none;border-radius:16px;padding:12px 24px;font-size:16px;font-weight:600;margin-bottom:32px;cursor:pointer;display:flex;align-items:center;gap:8px}.convert-tab::before{content:"💱";font-size:18px}.dropdown-menu.active{display:block}.currency-option{padding:12px 16px;display:flex;align-items:center;gap:12px;cursor:pointer;transition:background-color .2s ease}.currency-option:hover{background-color:#1239bb}.result-section.show{display:block}.loading{opacity:.6;pointer-events:none}