.calc-app{display:grid;grid-template-columns:264px 1fr;align-items:start;min-height:calc(100vh - var(--header-h));min-height:calc(100dvh - var(--header-h));font-family:var(--font-body);color:var(--ink)}.calc-app .calc-nav{position:sticky;top:var(--header-h);align-self:start;max-height:calc(100dvh - var(--header-h));overflow-y:auto;padding:var(--space-5) var(--space-4);background:var(--paper);border-right:1px solid var(--line)}.calc-app .calc-search input{width:100%;font:inherit;font-size:14px;padding:9px 11px;color:var(--ink);background:var(--paper);border:1px solid var(--line-strong);border-radius:0}.calc-app .calc-search input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}.calc-app .calc-nav-list{margin-top:var(--space-4)}.calc-app .calc-nav-grouptitle{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2);margin:var(--space-4) 0 var(--space-2)}.calc-app .calc-nav-group:first-child .calc-nav-grouptitle{margin-top:0}.calc-app .calc-nav-list ul{list-style:none;margin:0;padding:0;display:grid;gap:1px}.calc-app .calc-nav-list a{display:block;padding:8px 10px;font-size:14px;font-weight:500;color:var(--ink);border-left:2px solid transparent}.calc-app .calc-nav-list a:hover{background:var(--bone);color:var(--accent-deep)}.calc-app .calc-nav-list a.active{background:var(--bone);color:var(--accent-deep);border-left-color:var(--accent);font-weight:600}.calc-app .calc-nav-empty{font-size:13px;color:var(--muted);padding:8px 10px}.calc-app .calc-main{padding:var(--space-6) var(--space-6) var(--space-8);min-width:0}.calc-app .calc-header{margin-bottom:var(--space-6);display:flex;align-items:flex-end;justify-content:space-between;gap:var(--space-4);flex-wrap:wrap}.calc-app .calc-export{display:flex;gap:6px;flex:none}.calc-app .calc-export button{font:inherit;font-size:13px;font-weight:600;cursor:pointer;padding:7px 13px;color:var(--ink);background:var(--paper);border:1px solid var(--line-strong);border-radius:0;transition:background .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease)}.calc-app .calc-export button:hover{color:var(--accent-deep);border-color:var(--accent);background:var(--bone)}.calc-app .calc-export button:disabled{opacity:.5;cursor:wait}.calc-app .calc-eyebrow{font-size:13.5px;color:var(--muted);margin:0 0 6px}.calc-app .calc-header h1{font-family:var(--font-display);font-size:clamp(1.5rem,3vw,2rem);letter-spacing:-.02em;margin:0}.calc-app[data-js] [data-calc-section]{display:none}.calc-app[data-js] [data-calc-section].is-active{display:block}.calc-app .conv-head h2{font-family:var(--font-display);font-size:1.5rem;margin:0 0 6px}.calc-app .conv-desc{color:var(--muted);font-size:14.5px;margin:0 0 var(--space-5)}.calc-app .conv-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-6);align-items:start}.calc-app .conv-field{display:grid;gap:6px;margin-bottom:var(--space-5)}.calc-app .conv-label{font-size:13px;font-weight:600;color:var(--ink)}.calc-app .conv-field input{font:inherit;font-family:var(--font-mono);font-size:18px;width:100%;padding:10px 12px;color:var(--ink);background:var(--paper);border:1px solid var(--line-strong);border-radius:0}.calc-app .conv-field input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}.calc-app .conv-units{border:0;padding:0;margin:0;min-width:0}.calc-app .conv-units legend{padding:0;margin-bottom:8px;font-size:13px;font-weight:600;color:var(--muted)}.calc-app .conv-radio{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:14px;cursor:pointer}.calc-app .conv-radio input{accent-color:var(--accent);flex:none}.calc-app .conv-results{padding:var(--space-4);background:var(--bone);border-top:3px solid var(--accent)}.calc-app .conv-results-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 var(--space-3)}.calc-app .conv-out-list{margin:0;display:grid}.calc-app .conv-out{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}.calc-app .conv-out:last-child{border-bottom:0}.calc-app .conv-out dt{margin:0;font-size:13.5px;color:var(--ink)}.calc-app .conv-out dd{margin:0;display:flex;align-items:baseline;gap:5px;white-space:nowrap}.calc-app .conv-out-value{font-family:var(--font-mono);font-size:16px;font-weight:600;color:var(--accent-deep)}.calc-app .conv-out-unit{font-size:12px;color:var(--muted-2)}.calc-app .calc-disclaimer{margin-top:var(--space-7);font-size:12.5px;font-style:italic;color:var(--muted-2)}.calc-app .tool-head h2{font-family:var(--font-display);font-size:1.5rem;margin:0 0 6px}.calc-app .tool-desc{color:var(--muted);font-size:14.5px;margin:0 0 var(--space-5)}.calc-app .tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-6);align-items:start}.calc-app .tool-grid.wide{grid-template-columns:1fr}.calc-app .calc-form{display:grid;gap:var(--space-4)}.calc-app .calc-field{display:grid;gap:6px}.calc-app .calc-field>span,.calc-app .calc-field>label>span{font-size:13px;font-weight:600;color:var(--ink)}.calc-app .calc-input,.calc-app .calc-select{font:inherit;font-size:15px;width:100%;padding:9px 11px;color:var(--ink);background:var(--paper);border:1px solid var(--line-strong);border-radius:0}.calc-app .calc-input{font-family:var(--font-mono)}.calc-app .calc-input:focus,.calc-app .calc-select:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}.calc-app .calc-input:read-only{background:var(--bone-2);color:var(--muted)}.calc-app .calc-inline{display:grid;grid-template-columns:1fr auto;gap:8px}.calc-app .calc-inline .calc-select{width:auto}.calc-app .res-panel{padding:var(--space-4);background:var(--bone);border-top:3px solid var(--accent)}.calc-app .res-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 var(--space-3)}.calc-app .res-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}.calc-app .res-row:last-child{border-bottom:0}.calc-app .res-row dt,.calc-app .res-row .res-label{margin:0;font-size:13.5px;color:var(--ink)}.calc-app .res-row dd,.calc-app .res-row .res-val{margin:0;display:flex;align-items:baseline;gap:5px;white-space:nowrap}.calc-app .res-value{font-family:var(--font-mono);font-size:16px;font-weight:600;color:var(--accent-deep)}.calc-app .res-unit{font-size:12px;color:var(--muted-2)}.calc-app .res-hero{display:grid;gap:2px;padding:12px 0;border-bottom:1px solid var(--line)}.calc-app .res-hero .res-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}.calc-app .res-hero .res-value{font-size:1.7rem}.calc-app .calc-table-wrap{overflow-x:auto}.calc-app table.calc-table{width:100%;border-collapse:collapse;font-size:13.5px}.calc-app table.calc-table th,.calc-app table.calc-table td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}.calc-app table.calc-table th{font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;font-weight:700;color:var(--muted);background:var(--bone);white-space:nowrap}.calc-app table.calc-table td .calc-input,.calc-app table.calc-table td .calc-select{padding:6px 8px;font-size:14px;min-width:70px}.calc-app table.calc-table .num{font-family:var(--font-mono);font-weight:600;color:var(--accent-deep);white-space:nowrap}.calc-app .calc-table-total td{border-top:2px solid var(--accent);font-weight:700}.calc-app .tool-block{margin-top:var(--space-5);padding-top:var(--space-4);border-top:1px solid var(--line)}.calc-app .tool-block-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-2);margin:0 0 var(--space-3)}.calc-app .seg{display:inline-flex;border:1px solid var(--line-strong)}.calc-app .seg label{padding:7px 14px;font-size:13px;font-weight:600;cursor:pointer;color:var(--muted)}.calc-app .seg label:has(input:checked){background:var(--accent);color:#fff}.calc-app .seg input{position:absolute;opacity:0;pointer-events:none}.calc-app .calc-note{margin:var(--space-3) 0 0;font-size:12.5px;font-style:italic;color:var(--muted-2);line-height:1.5}.calc-app .calc-warn{margin:var(--space-3) 0 0;padding:10px 12px;font-size:13px;color:var(--ink);background:#fff4e5;border-left:3px solid #F6AD55}.calc-app .res-value.is-fail,.calc-app table.calc-table .num.is-fail{color:#c0392b}.calc-app .res-status{margin:var(--space-3) 0 0;padding:9px 12px;text-align:center;font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.calc-app .res-status.ok{background:#e6f4ea;color:#1e7e34;border:1px solid #a3d9b1}.calc-app .res-status.bad{background:#fde8e8;color:#c0392b;border:1px solid #f1b0b0}.calc-app input[type=range]{width:100%;accent-color:var(--accent)}.calc-app .ps-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-5);margin-top:var(--space-4)}.calc-app .ps-block{min-width:0}.calc-app [data-rowtype=optimal]{background:var(--bone)}.calc-app [data-cell=nominal].is-optimal{font-weight:700;color:var(--accent-deep)}@media(max-width:900px){.calc-app .tool-grid{grid-template-columns:1fr;gap:var(--space-5)}.calc-app .ps-grid{grid-template-columns:1fr}}@media(max-width:900px){.calc-app{grid-template-columns:1fr}.calc-app .calc-nav{position:static;max-height:none;overflow-y:visible;padding:var(--space-3) var(--space-4);border-right:0;border-bottom:1px solid var(--line)}.calc-app .calc-nav-list{margin-top:var(--space-3)}.calc-app .calc-nav-list{display:flex;gap:var(--space-4);overflow-x:auto}.calc-app .calc-nav-group{flex:none}.calc-app .calc-nav-grouptitle{margin:0 0 var(--space-2)}.calc-app .calc-nav-list ul{display:flex;gap:6px}.calc-app .calc-nav-list a{white-space:nowrap;border:1px solid var(--line);border-left:1px solid var(--line)}.calc-app .calc-nav-list a.active{border-color:var(--accent);border-left-color:var(--accent)}.calc-app .calc-nav-empty{display:none}.calc-app .calc-main{padding:var(--space-5) var(--space-4) var(--space-7)}.calc-app .conv-grid{grid-template-columns:1fr;gap:var(--space-5)}}