.am-container { background:#fee; padding:2rem; max-width:500px; margin:20px auto; border-radius:8px; font-family:Arial,sans-serif; }
.am-tabs { display:flex; margin-bottom:1rem; }
.am-tab { flex:1; padding:0.5rem; cursor:pointer; background:#fdd; border:none; margin-right:2px; border-radius:4px 4px 0 0; }
.am-tab.active { background:#f33; font-weight:bold; color:#fff; }
.am-tab-content { background:#fff; padding:1rem; border-radius:0 0 8px 8px; }
.am-tab-content label { display:block; margin-top:0.5rem; font-weight:bold; }
.am-tab-content input { width:100%; padding:0.3rem; margin-bottom:0.5rem; border:1px solid #ccc; border-radius:4px; }
.am-calc { margin-top:0.5rem; padding:0.5rem 1rem; background:#f33; color:#fff; border:none; border-radius:4px; cursor:pointer; }
.am-calc:hover { background:#c00; }
.am-result { margin-top:1rem; display:none; background:#fee; padding:0.5rem; border-radius:4px; }
.am-footer { margin-top:1rem; color:#800; text-align:center; }
.am-info { font-size:0.9rem; color:#a00; margin-top:0.5rem; }