:root{
    --paper:#FBF8F3;
    --card:#FFFFFF;
    --ink:#241A11;
    --ink-soft:#5B4C3B;
    --muted:#8A7A66;
    --line:#E7DECF;
    --amber:#B5761F;
    --amber-deep:#8F5C13;
    --spruce:#37503F;
    --spruce-soft:#5A7361;
    --shadow:0 1px 2px rgba(36,26,17,.04),0 8px 28px rgba(36,26,17,.06);
    --radius:14px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{-webkit-text-size-adjust:100%}
  body{
    font-family:'Inter',system-ui,sans-serif;
    background:var(--paper);
    color:var(--ink);
    line-height:1.55;
    font-feature-settings:"tnum" 0;
    -webkit-font-smoothing:antialiased;
  }
  .wrap{max-width:1040px;margin:0 auto;padding:0 20px}

  /* shared site header */
  header{position:relative;padding:20px 0 6px;display:flex;align-items:center;gap:13px}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border:0;background:none;cursor:pointer;color:var(--amber-deep);border-radius:8px;padding:0;transition:.15s}
  .menu-btn:hover{background:#F5EFE4}
  .menu-btn svg{display:block}
  .menu-btn .ic-close{display:none}
  .menu-btn.open .ic-open{display:none}
  .menu-btn.open .ic-close{display:block}
  .brand{display:flex;align-items:center;gap:10px;font-family:'Fraunces',serif;font-weight:600;font-size:19px;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}
  .brand img{display:block;width:24px;height:24px;flex:none}
  .brand span b{color:var(--amber)}
  .menu{position:absolute;top:calc(100% + 6px);left:0;z-index:60;min-width:250px;background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:7px}
  .menu[hidden]{display:none}
  .menu a{display:block;font-family:'Fraunces',serif;font-size:16px;font-weight:500;color:var(--ink-soft);text-decoration:none;padding:9px 13px;border-radius:8px;transition:.12s}
  .menu a:hover{background:#F5EFE4;color:var(--ink)}
  .menu a.current{background:#F3EADA;color:var(--ink);font-weight:600}

  /* hero */
  .hero{padding:26px 0 22px}
  .eyebrow{font-size:12.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--amber-deep)}
  h1{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(30px,5vw,46px);line-height:1.04;letter-spacing:-.02em;margin:8px 0 10px}
  .hero p{max-width:56ch;color:var(--ink-soft);font-size:16.5px}

  /* main grid */
  .grid{display:grid;grid-template-columns:1.05fr 1fr;gap:20px;align-items:start;margin-top:6px}
  @media(max-width:820px){.grid{grid-template-columns:1fr}}

  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
  .card-pad{padding:22px}

  /* segmented toggles */
  .seg{display:inline-flex;background:#F2EBDF;border:1px solid var(--line);border-radius:10px;padding:3px}
  .seg button{font:inherit;font-size:13px;font-weight:600;color:var(--ink-soft);background:none;border:0;border-radius:7px;padding:6px 14px;cursor:pointer;transition:.15s}
  .seg button.on{background:var(--card);color:var(--ink);box-shadow:0 1px 2px rgba(36,26,17,.08)}
  .seg.disabled{opacity:.55}
  .seg.disabled button{cursor:not-allowed}
  .row-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:10px}
  .row-top h2{font-family:'Fraunces',serif;font-size:18px;font-weight:600}

  label.fld{display:block;margin-bottom:15px}
  .fld .lab{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;font-weight:600;color:var(--ink-soft);margin-bottom:6px}
  .fld .lab .unit{font-weight:500;color:var(--muted);font-size:12px}
  .inp{position:relative}
  .inp input{
    width:100%;font:inherit;font-size:16px;font-weight:500;color:var(--ink);
    background:#FCFAF6;border:1.5px solid var(--line);border-radius:10px;
    padding:11px 44px 11px 13px;transition:.15s;font-variant-numeric:tabular-nums;
  }
  .inp input:focus{outline:none;border-color:var(--amber);background:#fff;box-shadow:0 0 0 3px rgba(181,118,31,.13)}
  .inp .suf{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);font-weight:600;pointer-events:none}

  .two{display:grid;grid-template-columns:1fr 1fr;gap:13px}

  /* select */
  .sel{position:relative}
  .sel select{
    width:100%;font:inherit;font-size:16px;font-weight:500;color:var(--ink);
    background:#FCFAF6;border:1.5px solid var(--line);border-radius:10px;
    padding:11px 40px 11px 13px;transition:.15s;appearance:none;-webkit-appearance:none;-moz-appearance:none;cursor:pointer;
  }
  .sel select:focus{outline:none;border-color:var(--amber);background:#fff;box-shadow:0 0 0 3px rgba(181,118,31,.13)}
  .sel::after{content:"▾";position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none;font-size:12px}

  /* depth quick chips */
  .chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
  .chips button{font:inherit;font-size:12.5px;font-weight:600;color:var(--ink-soft);background:#F5EFE4;border:1px solid var(--line);border-radius:20px;padding:5px 11px;cursor:pointer;transition:.12s}
  .chips button:hover{border-color:var(--amber);color:var(--amber-deep)}
  .chips button.on{background:var(--amber);border-color:var(--amber);color:#fff}

  /* mode toggle full-width segmented */
  .modeseg{display:grid;grid-template-columns:1fr 1fr 1fr;background:#F2EBDF;border:1px solid var(--line);border-radius:10px;padding:3px;gap:2px}
  .modeseg button{font:inherit;font-size:13px;font-weight:600;color:var(--ink-soft);background:none;border:0;border-radius:7px;padding:8px 6px;cursor:pointer;transition:.15s}
  .modeseg button.on{background:var(--card);color:var(--ink);box-shadow:0 1px 2px rgba(36,26,17,.08)}

  /* result hero */
  .res-lab{font-size:12.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--spruce-soft)}
  .res-big{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(46px,9vw,64px);line-height:1;letter-spacing:-.02em;color:var(--ink);font-variant-numeric:tabular-nums;margin:6px 0 2px}
  .res-unit{font-family:'Fraunces',serif;font-size:22px;color:var(--amber);font-weight:500}
  .res-sub{font-size:14px;color:var(--ink-soft);font-weight:500;margin-top:2px;font-variant-numeric:tabular-nums}
  .res-cost{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);display:flex;justify-content:space-between;align-items:baseline}
  .res-cost .k{font-size:13.5px;color:var(--ink-soft);font-weight:500}
  .res-cost .v{font-family:'Fraunces',serif;font-size:26px;font-weight:600;font-variant-numeric:tabular-nums}
  .res-cost.hide{display:none}
  .res-tip{font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.45}
  .res-tip.hide{display:none}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;border-radius:10px;padding:12px 16px;border:1.5px solid var(--ink);background:var(--ink);color:#fff;transition:.15s;width:100%}
  .btn:hover{background:#000}
  .add-wrap{margin-top:18px}
  .add-row{display:flex;gap:14px;align-items:center}
  .add-row .btn{flex:1;width:auto}
  .linkbtn{font:inherit;font-size:13px;font-weight:600;color:var(--muted);background:none;border:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px;white-space:nowrap;flex:none;padding:4px}
  .linkbtn:hover{color:var(--amber-deep)}
  .add-note{font-size:12.5px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.45}
  .res-hint{font-size:13px;color:var(--amber-deep);font-weight:500;margin-top:10px;text-align:center}
  .res-hint::before{content:"↑ "}

  /* project separator */
  .proj-sep{border-top:1px solid var(--line);margin:20px 0 16px}

  /* tally */
  .tally-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}
  .tally-head h3{font-family:'Fraunces',serif;font-size:20px;font-weight:700;letter-spacing:-.01em}
  .tally-head button{font:inherit;font-size:12.5px;font-weight:600;color:var(--muted);background:none;border:0;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
  .tally-head button:hover{color:var(--amber-deep)}
  .tally-empty{font-size:13.5px;color:var(--muted);padding:14px;text-align:center;background:#FCFAF6;border:1px dashed var(--line);border-radius:10px;line-height:1.45}
  .trow{display:grid;grid-template-columns:1fr 74px 70px 22px;gap:10px;align-items:center;padding:9px 2px;border-bottom:1px solid var(--line);font-size:13.5px}
  .trow:last-child{border-bottom:none}
  .trow .desc{color:var(--ink-soft);font-variant-numeric:tabular-nums;min-width:0}
  .trow .qt{font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
  .trow .qt.na{color:var(--muted);font-weight:500}
  .trow .rc{font-weight:600;font-variant-numeric:tabular-nums;text-align:left;border-left:1px solid #CBBBA0;padding-left:10px;color:var(--spruce)}
  .trow .rc.na{color:var(--muted);font-weight:500}
  .trow .x{background:none;border:0;color:var(--muted);cursor:pointer;font-size:16px;line-height:1;padding:2px 4px;border-radius:5px}
  .trow .x:hover{color:#b23;background:#f7e9e9}
  .tally-total{display:grid;grid-template-columns:1fr auto;gap:6px;margin-top:12px;padding-top:12px;border-top:2px solid var(--ink)}
  .tally-total .tl{font-weight:600;font-size:14px}
  .tally-total .tv{font-weight:700;font-variant-numeric:tabular-nums;text-align:right}
  .tally-total .sub{color:var(--muted);font-weight:500;font-size:13px}

  /* waste row + button */
  .wrow{background:#FCF7EE;border-top:1px solid var(--line);border-bottom:none}
  .wdesc{display:flex;align-items:center;gap:7px;min-width:0}
  .wtag{font-size:12px;font-weight:600;color:var(--amber-deep);flex:none}
  .win{flex:1;min-width:36px;width:100%;font:inherit;font-size:13px;font-weight:600;color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:8px;padding:5px 9px;font-variant-numeric:tabular-nums}
  .win:focus{outline:none;border-color:var(--amber);background:#fff;box-shadow:0 0 0 3px rgba(181,118,31,.13)}
  .win::placeholder{color:var(--muted);font-weight:500}
  .wsuf{font-size:13px;font-weight:600;color:var(--ink-soft);flex:none}
  .add-waste-btn{display:none;width:100%;margin-top:12px;font:inherit;font-size:13px;font-weight:600;color:var(--amber-deep);background:#FCF7EE;border:1.5px dashed var(--line);border-radius:10px;padding:9px;cursor:pointer;transition:.15s}
  .add-waste-btn:hover{border-color:var(--amber);background:#F8EDD9}

  /* content */
  .content{margin:44px 0 20px;max-width:none}
  .content .grid2{display:grid;grid-template-columns:1fr 1fr;gap:32px}
  @media(max-width:820px){.content .grid2{grid-template-columns:1fr;gap:0}}
  .content h2{font-family:'Fraunces',serif;font-size:24px;font-weight:600;letter-spacing:-.01em;margin:26px 0 10px}
  .content h3{font-family:'Fraunces',serif;font-size:17px;font-weight:600;margin:20px 0 6px}
  .content p{color:var(--ink-soft);margin-bottom:12px;font-size:15.5px}
  .content ul{color:var(--ink-soft);margin:0 0 12px 20px;font-size:15.5px}
  .content li{margin-bottom:5px}
  .formula{background:var(--spruce);color:#EAF0EC;border-radius:12px;padding:20px 22px;font-family:'Fraunces',serif;font-size:clamp(17px,3.3vw,22px);text-align:center;margin:8px 0 6px;letter-spacing:.01em}
  .formula small{display:block;font-family:'Inter';font-size:13px;color:#B4C6BB;letter-spacing:.04em;margin-top:8px;font-weight:500}
  .dtable{width:100%;border-collapse:collapse;margin:6px 0 14px;font-size:14.5px}
  .dtable th,.dtable td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);color:var(--ink-soft)}
  .dtable th{font-weight:600;color:var(--ink);font-size:13px}
  .dtable td:last-child,.dtable th:last-child{text-align:right;font-variant-numeric:tabular-nums}
  .faq{border-top:1px solid var(--line);padding:16px 0}
  .faq summary{font-family:'Fraunces',serif;font-size:16.5px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary::after{content:"+";color:var(--amber);font-size:22px;font-weight:400}
  .faq[open] summary::after{content:"–"}
  .faq p{margin-top:10px}

  footer{border-top:1px solid var(--line);margin-top:30px;padding:22px 0 40px;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
  footer a{color:var(--ink-soft);text-decoration:none}

  /* mobile sticky bar */
  .mbar{display:none}
  @media(max-width:820px){
    body{padding-bottom:88px}
    .tally-total{display:none!important}
    .mbar{
      display:flex;flex-direction:column;gap:3px;
      position:fixed;left:0;right:0;bottom:0;z-index:50;
      background:var(--card);border-top:1px solid var(--line);
      box-shadow:0 -4px 22px rgba(36,26,17,.12);
      padding:11px 18px calc(12px + env(safe-area-inset-bottom));
    }
    .mbar-lab{font-family:'Fraunces',serif;font-size:15px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
    .mbar-vals{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ink);font-weight:600}
    .mbar-seg{color:var(--ink)}
    .mbar-vals b{font-family:'Fraunces',serif;font-weight:700;font-size:24px;line-height:1;color:var(--amber);font-variant-numeric:tabular-nums;margin-right:4px}
    .mbar-eq{color:var(--amber);font-weight:700;font-size:18px;margin-right:2px}
    .mbar-div{width:1px;min-width:1px;height:24px;background:#CBBBA0;align-self:center}
    .mbar-cost{display:inline-flex;align-items:center}
    .mbar-cost b{color:var(--ink)}
    .mbar-cost.hide{display:none}
    .mbar-sub{color:var(--ink)}
    .chips button{padding:10px 16px;font-size:14px}
    .seg button{padding:10px 17px;font-size:14px}
    .modeseg button{padding:11px 6px;font-size:14px}
    .trow .x{font-size:20px;padding:7px 10px}
    .trow{grid-template-columns:1fr 68px 60px 20px;gap:7px;font-size:13px}
    .trow .rc{padding-left:8px}
    h1{font-size:33px}
  }
  @media(max-width:430px){ .two{grid-template-columns:1fr} }
  @media(prefers-reduced-motion:reduce){*{transition:none!important}}

  /* =========================================================
     HOMEPAGE  (body.p-home)  — hero/heading overrides + home-only components
     ========================================================= */
  .p-home .hero{padding:34px 0 10px;max-width:60ch}
  .p-home h1{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(32px,5.2vw,50px);line-height:1.03;letter-spacing:-.02em;margin:9px 0 12px}
  .p-home h1 b{color:var(--amber);font-weight:600}
  .p-home .hero p{color:var(--ink-soft);font-size:17px}

  .pills{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
  .pill{font-size:13px;font-weight:600;color:var(--spruce);background:#EDF2ED;border:1px solid #DCE6DC;border-radius:20px;padding:5px 12px}
  .pill.amber{color:var(--amber-deep);background:#F6EEDF;border-color:#EADFC8}

  .sec-h{font-family:'Fraunces',serif;font-weight:600;font-size:15px;letter-spacing:.02em;color:var(--ink-soft);text-transform:uppercase;margin:34px 0 14px;display:flex;align-items:center;gap:10px}
  .sec-h::after{content:"";flex:1;height:1px;background:var(--line)}

  .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
  @media(max-width:820px){.cards{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:520px){.cards{grid-template-columns:1fr}}
  .calc{display:flex;flex-direction:column;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 20px;text-decoration:none;color:inherit;transition:transform .14s ease,box-shadow .14s ease,border-color .14s ease}
  .calc:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(36,26,17,.05),0 16px 40px rgba(36,26,17,.10);border-color:#DFD2BC}
  .calc .ico{width:52px;height:52px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,#F7EEDD,#F1E4CB);border:1px solid #EADFC8}
  .calc .ico svg{display:block}
  .calc h3{font-family:'Fraunces',serif;font-weight:600;font-size:20px;letter-spacing:-.01em}
  .calc p{color:var(--ink-soft);font-size:14px;line-height:1.5}
  .calc .go{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--amber-deep);display:inline-flex;align-items:center;gap:6px}
  .calc .go svg{transition:transform .14s ease}
  .calc:hover .go svg{transform:translateX(3px)}
  .soon{opacity:.72;cursor:default;pointer-events:none}
  .soon .ico{background:#F4EFE6;border-color:var(--line)}
  .soon .badge{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px dashed var(--line);border-radius:20px;padding:3px 9px;align-self:flex-start;margin-top:auto}

  .prose{margin:40px 0 8px;max-width:72ch}
  .prose h2{font-family:'Fraunces',serif;font-weight:600;font-size:clamp(22px,3.4vw,28px);letter-spacing:-.01em;margin:0 0 12px}
  .prose h3{font-family:'Fraunces',serif;font-weight:600;font-size:18px;margin:26px 0 8px}
  .prose p{color:var(--ink-soft);font-size:16px;margin:0 0 13px}
  .prose strong{color:var(--ink);font-weight:600}

  .p-home footer nav a{margin-left:16px}

  /* =========================================================
     BOARD FOOT  (body.p-board-foot) — length toggle, ghost btn, cut-list row
     ========================================================= */
  .len-toggle{display:inline-flex;gap:2px;background:#F2EBDF;border:1px solid var(--line);border-radius:7px;padding:2px}
  .len-toggle button{font:inherit;font-size:11.5px;font-weight:600;color:var(--muted);background:none;border:0;border-radius:5px;padding:3px 9px;cursor:pointer}
  .len-toggle button.on{background:#fff;color:var(--ink);box-shadow:0 1px 1px rgba(0,0,0,.06)}
  .inp .len-toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);padding:2px;margin:0}
  .inp .len-toggle button{padding:5px 9px;font-size:12px}
  .p-board-foot #length{padding-right:72px}

  .btn-ghost{background:none;color:var(--ink);border-color:var(--line)}
  .btn-ghost:hover{background:#F5EFE4;border-color:var(--amber)}

  .result{position:relative}
  .trow .bf{font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
  .trow .bf.na{color:var(--muted);font-weight:500}
  /* board-foot cut-list uses a bd-ft + cost column pair (different widths than the qty/cost calcs) */
  .p-board-foot .trow{grid-template-columns:1fr 62px 78px 22px}

  @media(max-width:820px){
    .p-board-foot .trow{grid-template-columns:1fr 60px 58px 20px}
    .p-board-foot .len-toggle button{padding:7px 13px;font-size:13px}
  }