.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}.card h2{font-size:16px;font-weight:600;margin-bottom:12px;color:var(--text)}.dir-switch{display:flex;gap:0;margin-bottom:16px;background:var(--card-alt);border-radius:12px;padding:4px;border:1.5px solid var(--border)}.dir-btn{flex:1;height:38px;background:transparent;color:var(--sub);border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.dir-btn.active{background:var(--card);color:var(--primary);box-shadow:0 1px 3px #00000014}.form-grid{display:flex;flex-direction:column;gap:14px}.form-row{display:flex;align-items:center;gap:12px}.form-row label{width:110px;flex-shrink:0;font-size:14px;color:var(--sub);font-weight:500}.form-row input[type=text],.form-row select{flex:1;height:44px;padding:0 14px;border:1.5px solid var(--border);border-radius:12px;background:var(--card-alt);color:var(--text);font-size:15px;font-weight:500;outline:none;transition:border-color .2s,background .2s}.form-row select{text-align:right;text-align-last:right;appearance:none;-webkit-appearance:none;font-weight:600}.form-row input:focus,.form-row select:focus{border-color:var(--primary);background:var(--card)}.results-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.result-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 14px;text-align:center;border:1.5px solid transparent}.result-card.primary{border-color:var(--primary);background:var(--primary-muted, var(--card))}.result-label{font-size:12px;color:var(--sub);margin-bottom:6px;font-weight:600}.result-card.primary .result-label{color:var(--primary)}.result-value{font-size:22px;font-weight:700;color:var(--text);word-break:break-all;line-height:1.2}.result-card.primary .result-value{color:var(--primary)}.result-sub{font-size:11px;color:var(--sub);margin-top:6px;line-height:1.4}.m2a-card h2{font-size:16px;font-weight:600;color:var(--text);margin-bottom:12px}.m2a-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.m2a-row{display:flex;align-items:baseline;gap:8px;padding:10px 14px;border-radius:10px;background:var(--card-alt);border:1px solid var(--border)}.m2a-label{font-size:12px;color:var(--sub);font-weight:500;flex-shrink:0}.m2a-value{font-size:18px;font-weight:700;color:var(--text);flex:1;text-align:right;word-break:break-all}.m2a-unit{font-size:12px;color:var(--sub);flex-shrink:0}.interp-card{padding:18px 20px}.interp-text{font-size:15px;line-height:1.7;color:var(--text);font-weight:500}.era-note{margin-top:10px;padding-top:10px;border-top:1px solid var(--border);font-size:12px;color:var(--sub);line-height:1.5}.source-card .card-header{cursor:pointer;user-select:none;display:flex;align-items:center;justify-content:space-between;margin-bottom:0}.source-card .card-header h2{margin-bottom:0}.toggle-icon{font-size:12px;color:var(--sub);transition:transform .2s}.toggle-icon.open{transform:rotate(90deg)}.source-card .section-body{padding-top:16px}.src-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.src-table{width:100%;border-collapse:collapse;font-size:13px}.src-table th{background:var(--card-alt);color:var(--sub);font-weight:600;font-size:12px;text-align:left;padding:10px 8px;border-bottom:2px solid var(--border);white-space:nowrap}.src-table td{padding:9px 8px;border-bottom:1px solid var(--border);vertical-align:top}.src-table .src-cite{font-size:12px;color:var(--sub)}.src-modern{margin-top:12px;padding:12px 14px;border-radius:10px;background:var(--card-alt);font-size:13px;line-height:1.6}.src-modern-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.src-reset{background:transparent;border:1px solid var(--border);border-radius:8px;padding:3px 10px;font-size:12px;color:var(--sub);cursor:pointer;transition:all .15s}.src-reset:hover{border-color:var(--primary);color:var(--primary)}.src-modern-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.src-modern-grid label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--sub)}.src-mlbl{font-weight:500}.src-mwrap{display:inline-flex;align-items:center;gap:2px;padding:6px 10px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);font-size:13px;transition:border-color .15s}.src-mwrap:focus-within{border-color:var(--primary)}.src-mwrap input{width:70px;border:none;background:transparent;outline:none;color:var(--text);font-size:14px;font-weight:600;text-align:center;-moz-appearance:textfield}.src-mwrap input::-webkit-outer-spin-button,.src-mwrap input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.src-modern-note{margin-top:8px;font-size:11px;color:var(--sub)}.src-disclaimer{margin-top:10px;padding:10px 14px;border-radius:10px;background:var(--card-alt);font-size:12px;color:var(--sub);line-height:1.6;border-left:3px solid var(--primary)}@media(max-width:600px){.card{padding:16px}input,select{font-size:16px!important}.form-row{flex-direction:column;align-items:stretch;gap:6px}.form-row label{width:auto;font-size:13px;font-weight:600;color:var(--text)}.form-row input[type=text]{height:auto;padding:12px 14px;font-size:20px!important;font-weight:600}.form-row select{height:auto;padding:10px 14px;font-size:14px!important;font-weight:500}.results-grid{grid-template-columns:1fr 1fr}.result-value{font-size:18px}.m2a-list{grid-template-columns:1fr}.src-table{font-size:12px}.src-modern-grid{grid-template-columns:1fr 1fr}.src-mwrap input{width:56px;font-size:16px}}