:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#17343c;--muted:#5c6d70;--line:#d5d9d4;--paper:#f6f5ef;--card:#fff;--wood:#b66d30;--wood-dark:#7e4720;--teal:#2f6c73;--success:#277058;--danger:#b73a32;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body,html{max-width:100%;overflow-x:hidden}body{color:var(--ink);background:linear-gradient(90deg,#17343c06 1px,transparent 1px) 0 0 /32px 32px,var(--paper);margin:0}.hero,footer,main{width:min(1480px,100% - 40px);margin-inline:auto}.hero{justify-content:space-between;align-items:center;gap:40px;min-height:250px;padding-block:55px 40px;display:flex}.hero>div{min-width:0}.eyebrow,.step-number{color:var(--wood);letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px;font-size:.78rem;font-weight:800}h1,h2,p{margin-top:0}h1{letter-spacing:-.055em;margin-bottom:14px;font-size:clamp(2.3rem,6vw,4.7rem);line-height:.98}h2{letter-spacing:-.025em;font-size:clamp(1.45rem,3vw,2rem)}.lead,h2{margin-bottom:0}.lead{max-width:700px;color:var(--muted);font-size:1.08rem;line-height:1.65}.hero-mark{flex:none;width:210px;height:140px;position:relative}.hero-mark:after{content:"";background:var(--ink);transform-origin:0;height:14px;position:absolute;inset:auto 0 12px;transform:rotate(-35.75deg)}.hero-mark span{background:var(--wood);border-left:3px solid var(--wood-dark);width:48px;height:10px;position:absolute}.hero-mark span:first-child{bottom:53px;left:18px}.hero-mark span:nth-child(2){bottom:82px;left:59px}.hero-mark span:nth-child(3){bottom:111px;left:100px}.hero-mark span:nth-child(4){bottom:140px;left:141px}main{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:60px;display:grid}main,main>*{min-width:0}.decking-panel,.drawing-section,.input-panel,.results,.support-construction-panel{background:color-mix(in srgb,var(--card) 96%,transparent);border:1px solid var(--line);border-radius:16px;box-shadow:0 14px 50px #17343c0f}.decking-panel,.input-panel,.results,.support-construction-panel{padding:clamp(24px,4vw,44px)}.drawing-heading,.section-heading{justify-content:space-between;align-items:flex-end;gap:30px;display:flex}.section-heading>p{max-width:480px;color:var(--muted);text-align:right;margin-bottom:2px;line-height:1.55}form{margin-top:34px}fieldset{min-width:0}.primary-dimensions,.use-profile-fields{border:0;margin:0;padding:0}.primary-dimensions legend,.use-profile-fields legend{margin-bottom:16px;padding:0;font-size:1.05rem;font-weight:800}.use-profile-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.use-profile-card{cursor:pointer;background:#fff;border:1.5px solid #c4cfcc;border-radius:11px;min-height:104px;padding:17px;position:relative}.use-profile-card input{opacity:0;width:1px;height:1px;position:absolute}.use-profile-card>span{align-content:space-between;gap:14px;height:100%;display:grid}.use-profile-card strong{font-size:.97rem;line-height:1.3}.use-profile-card small{color:var(--muted);font-weight:700}.use-profile-card.selected{border-color:var(--teal);background:#edf5f4;box-shadow:0 0 0 3px #2f6c731c}.profile-explanation{border-left:4px solid var(--teal);background:#eef4f3;border-radius:7px;margin-top:14px;padding:18px 20px}.profile-explanation p{color:#40575c;margin:6px 0 0;line-height:1.55}.primary-dimensions{margin-top:30px}.primary-field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}.primary-field-grid label>small{color:var(--muted);font-weight:500;line-height:1.45}.advanced-fields,.custom-decking{background:#f5f7f3;border:1px solid #cad4d1;border-radius:11px;margin-top:28px}.advanced-fields summary,.custom-decking summary{cursor:pointer;padding:18px 20px;font-weight:800}.advanced-fields[open] summary,.custom-decking[open] summary{border-bottom:1px solid #d7dfdc}.advanced-grid,.free-grid{padding:22px}.free-grid{padding-top:0}.field-grid,.free-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;display:grid}label{gap:9px;font-size:.88rem;font-weight:720;display:grid}.input-wrap{background:#fff;border:1.5px solid #bdc7c5;border-radius:9px;align-items:center;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden}.input-wrap:focus-within{border-color:var(--teal);box-shadow:0 0 0 4px #2f6c731f}input,select{width:auto;min-width:0;color:var(--ink);background:0 0;border:0;outline:0;flex:1 1 0;padding:14px;font-family:inherit;font-size:1.05rem;font-weight:700}input[readonly]{color:#607277;cursor:not-allowed;background:#eef2f0}.input-wrap>span{color:var(--muted);background:#f1f3f0;padding:14px;font-size:.82rem;font-weight:700}.form-footer{align-items:center;gap:20px;margin-top:26px;display:flex}.decking-fields{background:#f5f7f3;border:1px solid #cad4d1;border-radius:11px;margin:28px 0 0;padding:24px}.decking-fields legend{color:var(--ink);padding:0 9px;font-weight:800}.formula-note{color:var(--muted);margin:18px 0 0;font-size:.84rem;line-height:1.55}.decking-suggestions{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:28px;display:grid}.decking-suggestions article{background:#fff;border:1px solid #cbd5d2;border-radius:11px;gap:13px;padding:20px;display:grid}.decking-suggestions article:first-child{border-color:var(--teal);background:#f1f7f6}.suggestion-rank{color:var(--wood-dark);letter-spacing:.06em;text-transform:uppercase;font-size:.73rem;font-weight:850}.decking-suggestions article>strong{font-size:1.1rem}.decking-suggestions dl{gap:7px;margin:0;display:grid}.decking-suggestions dl div{justify-content:space-between;gap:16px;font-size:.84rem;display:flex}.decking-suggestions dt{color:var(--muted)}.decking-suggestions dd{margin:0;font-weight:750}.decking-suggestions button{justify-self:start}.selected-decking{background:#eaf5ef;border:1px solid #92c6b3;border-radius:10px;grid-template-columns:repeat(4,minmax(0,1fr)) auto;align-items:end;gap:14px;margin-top:26px;padding:18px;display:grid}.selected-decking>div{gap:6px;display:grid}.selected-decking span{color:var(--muted);font-size:.76rem}.selected-decking strong{font-size:.95rem}.custom-decking>p{color:var(--muted);margin:20px 22px 0;line-height:1.55}.custom-decking .field-grid{padding:20px 22px}.custom-decking-guidance{background:#fff;border:1px solid #cbd5d2;border-radius:9px;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0 22px 20px;padding:16px;display:grid}.custom-decking-guidance>div{gap:5px;display:grid}.custom-decking-guidance span{color:var(--muted);font-size:.76rem}.custom-decking-guidance p{border-top:1px solid #dce2df;grid-column:1/-1;margin:0;padding-top:12px;line-height:1.5}.custom-decking-guidance.success{background:#eaf5ef;border-color:#92c6b3}.custom-decking-guidance.warning{background:#fff8e9;border-color:#dfa95f}.custom-decking-button{margin:0 22px 22px}.decking-empty,.decking-status{background:#fff7e8;border:1px solid #dfa95f;border-radius:8px;margin:24px 0 0;padding:16px;line-height:1.5}.decking-status.error{color:var(--danger);font-weight:750}.support-size-controls{grid-template-columns:minmax(0,1fr) minmax(420px,.9fr);align-items:end;gap:26px;margin-top:28px;display:grid}.control-label{margin-bottom:10px;font-size:.88rem;font-weight:760;display:block}.support-size-buttons{flex-wrap:wrap;gap:9px;display:flex}.support-size-buttons button{color:var(--ink);background:#f1f4f1;border:1px solid #c7d2d0}.support-size-buttons button.selected{color:#fff;background:var(--teal);border-color:var(--teal)}.support-custom-size{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:end;gap:12px;display:grid}.support-result{background:#f4f6f3;border:1px solid #cbd5d2;border-radius:10px;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-top:24px;padding:18px;display:grid}.support-result.fits{background:#eaf5ef;border-color:#92c6b3}.support-result.multi{background:#fff8e9;border-color:#dfa95f}.support-result.does-not-fit{background:#fff0ed;border-color:#dc8c84}.support-result>div{gap:6px;display:grid}.support-options article>span,.support-result span{color:var(--muted);font-size:.76rem}.support-result strong{font-size:1rem}.support-message,.support-options article{border-radius:10px;margin-top:14px;padding:18px;line-height:1.5}.support-message p,.support-options article p{margin:7px 0 0}.support-message.success{color:#185b45;background:#e8f5ef;border:1px solid #92c6b3}.support-message.warning{color:#8f2d27;background:#fff0ed;border:1px solid #dc8c84}.support-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.support-options article{background:#fff;border:1px solid #cbd5d2}.support-options article>strong{margin-top:7px;font-size:1.05rem;display:block}.recommended-support{background:#f0f8f4!important;border-color:#92c6b3!important}.multi-support{background:#fffaf0!important;border-color:#dfa95f!important}.multi-support ul{color:#40575c;margin:13px 0 0;padding-left:19px;font-size:.86rem;line-height:1.55}.structural-warning{color:#8a5520;border-top:1px solid #e2c68f;padding-top:12px;font-weight:750}button{color:#fff;background:var(--ink);cursor:pointer;border:0;border-radius:8px;padding:13px 20px;font-family:inherit;font-size:.92rem;font-weight:750;transition:transform .12s,background .12s}button:hover:not(:disabled){background:var(--teal);transform:translateY(-1px)}button:disabled{cursor:default;opacity:.7}button.secondary{color:var(--ink);background:#edf2f1;border:1px solid #c7d2d0}#status{color:var(--muted);margin:0;font-size:.9rem}#status.success{color:var(--success)}#status.error{color:var(--danger);font-weight:700}.summary-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:30px;display:grid}.summary-grid article{border-top:3px solid var(--teal);background:#f1f4f1;border-radius:9px;align-content:space-between;gap:12px;min-height:100px;padding:18px;display:grid}.summary-grid span{color:var(--muted);font-size:.79rem}.summary-grid strong{font-size:1.16rem}.fit-message{border-radius:8px;margin-top:14px;padding:14px 18px;font-weight:700}.fit-message.fits{color:#185b45;background:#e8f5ef;border:1px solid #92c6b3}.fit-message.does-not-fit{color:#8f2d27;background:#fff0ed;border:1px solid #dc8c84}.overhang-message{color:#7a4b13;background:#fff7e8;border:1px solid #dfa95f;border-radius:8px;margin-top:14px;padding:14px 18px;font-weight:700}.criteria-message{color:#40575c;background:#eef3f3;border:1px solid #bfd0d2;border-radius:8px;margin-top:14px;padding:14px 18px;font-size:.84rem;line-height:1.55}.criteria-message a{color:var(--teal);font-weight:750}.guidance-panel{background:#fff8e9;border:1px solid #dfa95f;border-radius:11px;margin-top:26px;padding:22px}.guidance-panel h3{margin:0 0 6px}.guidance-panel>p{color:#72542d}.guidance-panel article{background:#fff;border:1px solid #ead3ae;border-radius:9px;gap:7px;margin-top:12px;padding:16px;display:grid}.guidance-panel article span{color:var(--muted);font-size:.84rem}.guidance-panel article p{margin:0;line-height:1.5}.guidance-button{background:#8a5520;justify-self:start;margin-top:4px}.layout-selection{border-top:1px solid var(--line);margin-top:30px;padding-top:26px}.candidate-heading h3{margin:0 0 6px;font-size:1.2rem}.candidate-heading p{color:var(--muted);margin:0 0 18px;font-size:.86rem}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.84rem}td,th{text-align:left;white-space:nowrap;border-bottom:1px solid #dce1dd;padding:12px 10px}th{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem}tr.selected{background:#eaf4ef}tr.overrun:not(.selected){background:#fff7e8}tr.overrun td:nth-child(5){color:#9a5a16;font-weight:750}.candidate-button{padding:8px 12px;font-size:.78rem}.candidate-button:disabled{color:var(--success);opacity:1;background:0 0}.drawing-section{min-width:0;overflow:hidden}.drawing-heading{border-bottom:1px solid var(--line);padding:28px 32px 22px}.svg-frame{background:#faf9f5;min-width:0;min-height:240px;padding:16px;overflow:auto}.svg-frame svg{width:100%;max-width:100%;height:auto;display:block}footer{color:var(--muted);text-align:center;padding:10px 0 42px;font-size:.84rem}@media (width<=900px){.hero-mark{display:none}.decking-suggestions,.field-grid,.free-grid,.selected-decking,.summary-grid,.use-profile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.support-size-controls{grid-template-columns:1fr}.section-heading{flex-direction:column;align-items:flex-start}.section-heading>p{text-align:left}}@media (width<=560px){.hero,footer,main{width:calc(100vw - 20px);max-width:calc(100vw - 20px)}.hero{min-height:0;padding-block:38px 25px}.hero>div{width:100%;max-width:100%}h1{overflow-wrap:anywhere;font-size:2.15rem}.custom-decking-guidance,.decking-suggestions,.field-grid,.free-grid,.primary-field-grid,.selected-decking,.summary-grid,.support-custom-size,.support-options,.support-result,.use-profile-grid{grid-template-columns:1fr}.custom-decking-guidance p{grid-column:auto}.decking-panel,.drawing-section,.input-panel,.results,.support-construction-panel{width:100%;min-width:0;max-width:calc(100vw - 20px)}.decking-panel,.input-panel,.results,.support-construction-panel{overflow:hidden}.field-grid,.input-wrap,label{width:100%;min-width:0;max-width:100%}.section-heading{width:100%;min-width:0}.section-heading>p{overflow-wrap:anywhere;width:100%;max-width:100%}.lead{overflow-wrap:break-word;width:100%;max-width:calc(100vw - 20px)}.decking-fields{padding:20px 12px}input,select{max-width:100%}.drawing-heading,.form-footer{flex-direction:column;align-items:stretch}.drawing-heading button{width:100%}.decking-panel,.drawing-heading,.input-panel,.results,.support-construction-panel{padding:22px 18px}.svg-frame{padding:5px}}