:root{--b:#14365d;--a:#d9822b;--bg:#f4f6f9;--t:#1c2430}*{box-sizing:border-box}body{margin:0;font:15px/1.5 system-ui,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--t)}
.wrap{max-width:1050px;margin:auto;padding:0 16px}header{background:var(--b);color:#fff;padding:14px 0}header .wrap{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.brand{font-weight:800;font-size:24px;color:#fff;text-decoration:none}.brand span{color:var(--a)}h1{font-size:19px;margin:0;font-weight:600}
.card{background:#fff;border-radius:10px;box-shadow:0 1px 4px #0002;padding:18px;margin:16px 0}h2{margin:0 0 12px;color:var(--b);font-size:18px}
.disclaimer{background:#fff4e0;border-left:5px solid var(--a);padding:12px;margin:16px 0;border-radius:6px}
.alert{background:#fdecea;border-left:5px solid #c0392b;padding:10px;border-radius:6px;margin-top:8px}
label{display:block;margin:6px 0;font-weight:500}label.chk{font-weight:400}input,select,textarea{font:inherit;padding:6px 8px;border:1px solid #bcc6d3;border-radius:6px}input[type=number],input:not([type]),select{min-width:120px}textarea{width:100%;font-family:ui-monospace,Consolas,monospace;font-size:13px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}.cols input,.cols select{width:100%}
.tabs button{border:1px solid var(--b);background:#fff;color:var(--b);padding:6px 12px;border-radius:6px;cursor:pointer;margin:0 4px 8px 0}.tabs button.on{background:var(--b);color:#fff}.hidden{display:none!important}
button.pri{background:var(--a);color:#fff;border:0;padding:9px 16px;border-radius:6px;font-weight:600;cursor:pointer}button.sec{background:#e8eef6;border:1px solid #b9c7da;padding:6px 10px;border-radius:6px;cursor:pointer;margin:4px 4px 4px 0}
table.grid{border-collapse:collapse;width:100%;margin:8px 0;font-size:14px}.grid th,.grid td{border:1px solid #d5dce6;padding:5px 7px;text-align:left}.grid th{background:#eef2f7}.grid input{width:100%;min-width:60px}
.result{font-size:16px;margin:10px 0;padding:10px;background:#eef6ee;border-radius:6px}.small{font-size:13px;color:#566}.fbox{border:1px solid #d5dce6;border-radius:8px;margin-top:10px}
.chartwrap{position:relative;height:360px}pre{background:#f6f8fa;padding:8px;max-height:180px;overflow:auto;font-size:12px}footer{margin:20px 0}
@media print{header,.tabs,button,details,#specPre,.chartwrap+.row{display:none!important}.card{box-shadow:none;break-inside:avoid}body{background:#fff}textarea{border:0;height:auto}}