:root{--ink:#0b1220;--muted:#526071;--line:#dce3eb;--paper:#fbfaf7;--surface:#fff;--surface-soft:#f1f5f9;--blue:#1d4ed8;--blue-dark:#173b8f;--cyan:#0e7490;--green:#166534;--amber:#92400e;--radius:18px;--shadow:0 18px 50px #0f172a14}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}a{color:inherit}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}:focus-visible{outline-offset:3px;outline:3px solid #60a5fa}.skip{z-index:100;background:var(--ink);color:#fff;border-radius:10px;padding:.75rem 1rem;position:fixed;top:-5rem;left:1rem}.skip:focus{top:1rem}.container{width:min(1160px,100% - 2rem);margin-inline:auto}.site-header{z-index:50;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#fbfaf7eb;border-bottom:1px solid #dce3ebe6;position:sticky;top:0}.nav-row{align-items:center;gap:1rem;min-height:72px;display:flex}.brand{letter-spacing:-.02em;white-space:nowrap;align-items:center;gap:.7rem;font-weight:800;text-decoration:none;display:inline-flex}.brand-logo{object-fit:cover;border-radius:12px;flex:none;width:42px;height:42px;box-shadow:0 8px 20px #1d4ed840}.desktop-nav{gap:.2rem;margin-left:auto;display:flex}.desktop-nav a,.mobile-nav a{color:var(--muted);border-radius:9px;padding:.65rem .8rem;font-size:.92rem;font-weight:650;text-decoration:none}.desktop-nav a:hover,.mobile-nav a:hover{color:var(--ink);background:#fff}.nav-development{color:var(--muted);cursor:not-allowed;white-space:nowrap;align-items:center;gap:.35rem;padding:.65rem .55rem;font-size:.9rem;font-weight:650;display:inline-flex}.nav-development small{color:var(--amber);text-transform:uppercase;letter-spacing:.04em;background:#fff4df;border-radius:999px;padding:.1rem .35rem;font-size:.58rem;font-weight:850}.nav-cta{background:var(--ink);color:#fff;border-radius:10px;margin-left:.4rem;padding:.68rem .95rem;font-size:.9rem;font-weight:750;text-decoration:none}.menu-btn{border:1px solid var(--line);background:#fff;border-radius:10px;min-width:48px;min-height:44px;margin-left:auto;display:none}.mobile-nav{border-top:1px solid var(--line);padding:.4rem 1rem 1rem;display:none}.mobile-nav.open{display:grid}main{min-height:65vh}.hero{padding:clamp(4rem,9vw,7.5rem) 0 4rem;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle,#2563eb26,#0000 67%);border-radius:50%;width:620px;height:620px;position:absolute;top:-300px;right:-260px}.eyebrow{color:var(--blue);letter-spacing:.12em;text-transform:uppercase;align-items:center;gap:.5rem;font-size:.78rem;font-weight:850;display:inline-flex}.eyebrow:before{content:"";background:currentColor;width:26px;height:2px}h1,h2,h3{letter-spacing:-.035em;line-height:1.15}h1{max-width:820px;margin:1rem 0 1.25rem;font-size:clamp(2.7rem,7vw,5.5rem)}.hero-copy{max-width:700px;color:var(--muted);font-size:clamp(1.05rem,2vw,1.28rem)}.actions{flex-wrap:wrap;gap:.75rem;margin-top:2rem;display:flex}.button{cursor:pointer;border:1px solid #0000;border-radius:11px;justify-content:center;align-items:center;gap:.55rem;min-height:46px;padding:.75rem 1rem;font-weight:780;text-decoration:none;display:inline-flex}.button.primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px #1d4ed838}.button.primary:hover{background:var(--blue-dark)}.button.secondary{border-color:var(--line);background:#fff}.button.secondary:hover{border-color:#94a3b8}.button:disabled{cursor:not-allowed;opacity:.55}.trust-strip{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;grid-template-columns:repeat(3,1fr);display:grid}.trust-item{padding:1.2rem 1.4rem}.trust-item+.trust-item{border-left:1px solid var(--line)}.trust-item strong{margin-bottom:.2rem;display:block}.trust-item span{color:var(--muted);font-size:.9rem}.section{padding:4.8rem 0}.section.alt{border-block:1px solid var(--line);background:#f2f5f8}.section-head{justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:1.8rem;display:flex}.section-head h2{margin:.35rem 0 0;font-size:clamp(2rem,4vw,3rem)}.section-head p{max-width:620px;color:var(--muted);margin:.6rem 0 0}.product-cta{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;justify-content:space-between;align-items:center;gap:2rem;padding:clamp(1.25rem,4vw,2rem);display:flex}.product-cta h2{margin:.35rem 0 .6rem;font-size:clamp(1.55rem,3vw,2.35rem)}.product-cta p{max-width:720px;color:var(--muted);margin:0}.product-cta .button{flex:none}.text-link{color:var(--blue);white-space:nowrap;font-weight:750;text-decoration:none}.grid{gap:1rem;display:grid}.grid.cards-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cards-3{grid-template-columns:repeat(3,1fr)}.grid.cards-4{grid-template-columns:repeat(4,1fr)}.tool-groups{gap:4rem;padding:1.5rem 0 4.8rem;display:grid}.tool-category-section{min-width:0}.tool-category-section .section-head.compact{margin-bottom:1.25rem}.tool-category-section .section-head.compact h2{font-size:clamp(1.65rem,3vw,2.35rem)}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;flex-direction:column;min-height:100%;padding:1.35rem;text-decoration:none;transition:transform .18s,box-shadow .18s,border-color .18s;display:flex}.card:hover{box-shadow:var(--shadow);border-color:#b8c5d4;transform:translateY(-3px)}.card-disabled{cursor:not-allowed;background:#f8fafc}.card-disabled:hover{border-color:var(--line);box-shadow:none;transform:none}.card-icon{color:#fff;background:var(--accent,var(--blue));letter-spacing:-.04em;border-radius:13px;place-items:center;width:46px;height:46px;font-weight:850;display:grid}.card h3{margin:1rem 0 .55rem;font-size:1.15rem}.card p{color:var(--muted);margin:0;font-size:.94rem}.card-foot{color:var(--blue);justify-content:space-between;align-items:center;gap:.5rem;margin-top:auto;padding-top:1.25rem;font-size:.88rem;font-weight:750;display:flex}.badge{width:fit-content;color:var(--blue-dark);background:#eaf1ff;border-radius:999px;padding:.24rem .62rem;font-size:.72rem;font-weight:800;display:inline-flex}.badge.green{color:var(--green);background:#e9f7ed}.badge.amber{color:var(--amber);background:#fff4df}.page-hero{padding:4rem 0 2rem}.page-hero h1{margin-bottom:1rem;font-size:clamp(2.45rem,5vw,4.4rem)}.page-hero p{max-width:760px;color:var(--muted);font-size:1.1rem}.breadcrumb{color:var(--muted);flex-wrap:wrap;gap:.4rem;padding-top:1.5rem;font-size:.82rem;display:flex}.breadcrumb a{color:var(--blue);text-decoration:none}.controls{grid-template-columns:1.5fr repeat(2,minmax(160px,.55fr));gap:.75rem;margin-bottom:1.5rem;display:grid}.field{gap:.4rem;display:grid}.field label{color:#334155;font-size:.82rem;font-weight:800}.input,.select,.textarea{width:100%;min-height:46px;color:var(--ink);background:#fff;border:1px solid #cbd5e1;border-radius:10px;padding:.72rem .8rem}.textarea{resize:vertical;min-height:240px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.5}.empty{border-radius:var(--radius);text-align:center;color:var(--muted);background:#ffffff8c;border:1px dashed #b8c5d4;padding:3rem 1rem}.detail-grid{grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);align-items:start;gap:2rem;display:grid}.panel{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:clamp(1.2rem,3vw,2rem);box-shadow:0 10px 35px #0f172a0d}.panel h2:first-child,.panel h3:first-child{margin-top:0}.prose{color:#334155}.prose h2{color:var(--ink);margin-top:2.2rem}.prose h3{color:var(--ink);margin-top:1.6rem}.prose li{margin-bottom:.45rem}.prose a{color:var(--blue)}.calculator-shell{gap:1rem;display:grid}.finance-shell{grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);align-items:stretch;gap:1.25rem;display:grid}.finance-inputs{align-content:center;gap:1.5rem;display:grid}.finance-range{gap:.7rem;display:grid}.finance-range-head{justify-content:space-between;align-items:baseline;gap:1rem;display:flex}.finance-range-head label{color:#334155;font-size:.85rem;font-weight:800}.finance-range-head output{color:var(--blue);font-weight:850}.finance-range input[type=range]{width:100%;accent-color:var(--blue);cursor:pointer}.finance-summary{border:1px solid var(--line);background:var(--surface-soft);border-radius:14px;align-content:start;justify-items:center;gap:1.1rem;padding:1.2rem;display:grid}.finance-donut{aspect-ratio:1;background:conic-gradient(var(--donut-fill));border-radius:50%;place-items:center;width:150px;display:grid;position:relative}.finance-donut:after{content:"";background:var(--surface-soft);border-radius:50%;position:absolute;inset:22%}.finance-donut span{z-index:1;font-weight:850;position:relative}.finance-rows{border:1px solid var(--line);background:#fff;border-radius:12px;width:100%;display:grid;overflow:hidden}.finance-rows>div{justify-content:space-between;align-items:baseline;gap:1rem;padding:.8rem 1rem;display:flex}.finance-rows>div+div{border-top:1px solid var(--line)}.finance-rows span{color:var(--muted);font-size:.83rem}.finance-rows strong{text-align:right;overflow-wrap:anywhere}.finance-rows .positive{color:var(--green)}.finance-rows .negative{color:#be123c}.finance-rows .finance-total{background:#f8fafc}.finance-rows .finance-total strong{color:var(--blue-dark);font-size:1.08rem}.finance-schedule-button{width:100%}.finance-table-wrap{border:1px solid var(--line);border-radius:12px;max-height:420px;overflow:auto}.finance-table{border-collapse:collapse;font-variant-numeric:tabular-nums;background:#fff;width:100%}.finance-table caption{text-align:left;padding:.8rem;font-weight:850}.finance-table th{background:var(--surface-soft);color:#334155;position:sticky;top:0}.finance-table th,.finance-table td{border-top:1px solid var(--line);text-align:right;white-space:nowrap;padding:.65rem .8rem}.finance-table th:first-child,.finance-table td:first-child{text-align:center}.finance-note{color:#1e3a8a;background:#eff6ff;border:1px solid #bfdbfe;border-radius:11px;padding:.9rem 1rem;font-size:.88rem}.finance-disclaimer{color:var(--muted);margin:0;font-size:.82rem}.development-page{align-content:center;justify-items:start;max-width:760px;min-height:52vh;padding:4rem 0;display:grid}.development-page h1{margin-bottom:.75rem}.development-page p{max-width:620px;color:var(--muted);margin:0 0 1.5rem;font-size:1.1rem}.converter-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.converter-panel{border:1px solid var(--line);background:var(--surface-soft);border-radius:15px;align-content:start;gap:1rem;min-width:0;padding:1.15rem;display:grid}.converter-heading{align-items:flex-start;gap:.75rem;display:flex}.converter-heading h2{margin:0;font-size:1.15rem}.converter-heading p{color:var(--muted);margin:.25rem 0 0;font-size:.86rem}.converter-direction{background:var(--blue);color:#fff;border-radius:9px;flex:none;place-items:center;width:34px;height:34px;font-size:.73rem;font-weight:850;display:grid}.converter-output-grid{border:1px solid var(--line);background:#fff;border-radius:11px;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;overflow:hidden}.converter-output-grid>div{gap:.15rem;padding:.7rem .8rem;display:grid}.converter-output-grid>div+div{border-left:1px solid var(--line)}.converter-output-grid span{color:var(--muted);font-size:.76rem}.converter-output-grid strong{overflow-wrap:anywhere}.measurement-set,.operator-set{border:1px solid var(--line);border-radius:14px;margin:0;padding:1rem}.measurement-set legend,.operator-set legend{color:#334155;padding:0 .35rem;font-size:.82rem;font-weight:850}.measurement-grid{grid-template-columns:1fr 1fr 1.2fr;gap:.75rem;display:grid}.operator-grid{grid-template-columns:repeat(4,1fr);gap:.5rem;display:grid}.operator-button{border:1px solid var(--line);min-height:48px;color:var(--muted);cursor:pointer;background:#fff;border-radius:10px;font-size:1.2rem;font-weight:850}.operator-button.active{border-color:var(--blue);color:var(--blue-dark);box-shadow:inset 0 0 0 1px var(--blue);background:#eaf1ff}.breakdown{border:1px solid var(--line);background:#fff;border-radius:12px;display:grid;overflow:hidden}.breakdown>div{justify-content:space-between;gap:1rem;padding:.8rem 1rem;display:flex}.breakdown>div+div{border-top:1px solid var(--line)}.breakdown span{color:var(--muted)}.divider{border:0;border-top:1px solid var(--line);width:100%;margin:1rem 0}.subheading{margin:0 0 1rem;font-size:1.2rem}.calc-grid{grid-template-columns:repeat(2,1fr);gap:.9rem;display:grid}.stair-input-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.input-with-unit{background:#fff;border:1px solid #cbd5e1;border-radius:10px;grid-template-columns:minmax(0,1fr) auto;align-items:center;display:grid;overflow:hidden}.input-with-unit .input{border:0;border-radius:0}.input-with-unit span{min-width:48px;color:var(--muted);text-align:center;padding:0 .8rem;font-weight:750}.roof-diagram,.stair-diagram{border:1px solid var(--line);background:var(--surface-soft);border-radius:14px;padding:1rem;overflow:hidden}.roof-diagram svg,.stair-diagram svg{width:min(100%,540px);height:auto;margin-inline:auto;display:block}.roof-diagram path{fill:#2563eb14;stroke:var(--blue);stroke-width:4px;stroke-linejoin:round}.roof-diagram text,.stair-diagram text{fill:#334155;font-size:13px;font-weight:750}.stair-diagram path{fill:none;stroke:var(--blue);stroke-width:4px;stroke-linejoin:round}.stair-diagram line{stroke:#94a3b8;stroke-width:1.5px;stroke-dasharray:5 4}.calc-result{color:#fff;background:linear-gradient(135deg,#0b1736,#173b8f);border-radius:14px;padding:1.4rem}.calc-result small{color:#bfdbfe;text-transform:uppercase;letter-spacing:.1em;font-weight:750;display:block}.result-value{letter-spacing:-.04em;word-break:break-word;margin:.45rem 0 .25rem;font-size:clamp(1.8rem,5vw,3rem);font-weight:850}.result-meta{color:#dbeafe;font-size:.9rem}.error{color:#991b1b;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:.8rem 1rem}.button-row{flex-wrap:wrap;gap:.7rem;display:flex}.formula{border-left:4px solid var(--blue);color:#1e3a8a;background:#eff6ff;border-radius:0 10px 10px 0;padding:1rem 1.1rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:1rem 0}.faq summary{cursor:pointer;font-weight:780}.faq p{color:var(--muted)}.drop-zone{text-align:center;background:#f8fafc;border:2px dashed #9fb1c5;border-radius:14px;padding:1.5rem}.preset-row{flex-wrap:wrap;gap:.55rem;display:flex}.preset-button{border:1px solid var(--line);color:#334155;cursor:pointer;background:#fff;border-radius:9px;min-height:40px;padding:.5rem .72rem;font-weight:750}.preset-button.active{border-color:var(--blue);color:var(--blue-dark);box-shadow:inset 0 0 0 1px var(--blue);background:#eaf1ff}.pdf-selection-toolbar{flex-wrap:wrap;align-items:center;gap:.65rem;display:flex}.pdf-selection-toolbar strong{color:var(--blue-dark);margin-left:auto}.pdf-page-grid{grid-template-columns:repeat(auto-fill,minmax(135px,1fr));gap:.75rem;max-height:560px;padding:.15rem;display:grid;overflow:auto}.pdf-page-tile{border:1px solid var(--line);color:#334155;cursor:pointer;background:#fff;border-radius:12px;justify-items:center;gap:.4rem;min-width:0;padding:.65rem;display:grid}.pdf-page-tile:hover{border-color:#93c5fd}.pdf-page-tile.selected{border-color:var(--blue);box-shadow:inset 0 0 0 1px var(--blue);background:#eff6ff}.pdf-page-tile canvas{object-fit:contain;background:#fff;border:1px solid #e2e8f0;max-width:100%;height:150px;display:block}.pdf-page-tile span{font-size:.82rem;font-weight:800}.pdf-page-tile strong{color:var(--blue);font-size:.72rem}.file-list{gap:.55rem;padding:0;list-style:none;display:grid}.file-row{border:1px solid var(--line);background:#fff;border-radius:10px;align-items:center;gap:.7rem;padding:.75rem;display:flex}.file-row span{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.icon-button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:9px;min-width:42px;min-height:42px}.ocr-progress{background:#eff6ff;border:1px solid #bfdbfe;border-radius:999px;min-height:34px;position:relative;overflow:hidden}.ocr-progress>div{background:linear-gradient(90deg,#60a5fa,var(--blue));min-width:2px;transition:width .2s;position:absolute;inset:0 auto 0 0}.ocr-progress>span{z-index:1;color:#0b1736;place-items:center;min-height:32px;font-size:.8rem;font-weight:850;display:grid;position:relative}.ocr-output{min-height:340px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.diff-grid{grid-template-columns:repeat(2,1fr);gap:.8rem;display:grid}.diff-col{border:1px solid var(--line);border-radius:10px;overflow:hidden}.diff-col h3{background:var(--surface-soft);margin:0;padding:.7rem 1rem;font-size:.9rem}.diff-lines{white-space:pre-wrap;max-height:380px;padding:.7rem 1rem;font-family:ui-monospace,monospace;font-size:.8rem;overflow:auto}.pdf-compare-shell{gap:1rem;display:grid}.pdf-privacy-note{color:#1e40af;background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:.75rem 1rem;font-size:.9rem}.pdf-upload-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.pdf-upload-card{border:2px dashed var(--line);text-align:center;background:var(--surface-soft);border-radius:12px;justify-items:center;gap:.75rem;padding:1.15rem;display:grid}.pdf-upload-card.revision-a{border-color:#fca5a5}.pdf-upload-card.revision-b{border-color:#67e8f9}.pdf-upload-card.has-file{background:#fff;border-style:solid}.pdf-revision-tag{letter-spacing:.04em;text-transform:uppercase;border-radius:6px;padding:.3rem .55rem;font-size:.76rem;font-weight:850}.revision-a .pdf-revision-tag{color:#991b1b;background:#fee2e2}.revision-b .pdf-revision-tag{color:#155e75;background:#cffafe}.pdf-file-input{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.pdf-file-name{max-width:100%;color:var(--muted);overflow-wrap:anywhere;font-size:.84rem;font-weight:700}.pdf-compare-controls{border:1px solid var(--line);background:var(--surface-soft);border-radius:12px;gap:.75rem;padding:.8rem;display:grid}.pdf-mode-buttons{background:#e2e8f0;border-radius:9px;grid-template-columns:repeat(4,minmax(0,1fr));gap:.4rem;padding:.3rem;display:grid}.pdf-mode-button{min-height:42px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:7px;padding:.55rem .7rem;font-size:.82rem;font-weight:800}.pdf-mode-button.active{color:var(--blue-dark);background:#fff;box-shadow:0 1px 4px #0f172a1f}.pdf-mode-button:disabled{cursor:not-allowed;opacity:.55}.pdf-page-controls{flex-wrap:wrap;justify-content:center;align-items:center;gap:.55rem;display:flex}.button.compact{min-height:40px;padding:.5rem .75rem}.pdf-zoom-label{color:var(--muted);font-size:.82rem;font-weight:800}.compact-select{width:auto;min-height:40px;padding:.4rem 2rem .4rem .65rem}.pdf-diff-legend{border:1px solid var(--line);background:#fff;border-radius:9px;flex-wrap:wrap;justify-content:center;gap:1rem;padding:.6rem .8rem;font-size:.8rem;font-weight:800;display:flex}.pdf-diff-legend span{align-items:center;gap:.4rem;display:inline-flex}.pdf-diff-legend i{border-radius:50%;width:10px;height:10px;display:inline-block}.pdf-diff-legend .red{background:#dc2626}.pdf-diff-legend .blue{background:#2563eb}.pdf-diff-legend .black{background:#0f172a}.pdf-page-warning{color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;border-radius:9px;margin:0;padding:.65rem .8rem}.pdf-status{color:var(--muted);margin:0;font-size:.88rem}.pdf-compare-viewport{color:#e2e8f0;background:#475569;border:1px solid #334155;border-radius:10px;justify-content:center;align-items:flex-start;min-height:480px;padding:1rem;display:flex;position:relative;overflow:auto}.pdf-compare-viewport>p{text-align:center;align-self:center;max-width:38rem}.pdf-compare-viewport>canvas{background:#fff;max-width:100%;height:auto;display:none;box-shadow:0 12px 28px #0f172a59}.pdf-compare-viewport>canvas.visible{display:block}.pdf-split-view{background:#fff;width:100%;max-width:100%;line-height:0;display:none;position:relative;box-shadow:0 12px 28px #0f172a59}.pdf-split-view.visible{display:block}.pdf-split-view canvas{width:100%;height:auto;display:block}.pdf-split-view .pdf-split-top{position:absolute;inset:0}.pdf-split-line{z-index:2;background:var(--blue);pointer-events:none;width:3px;position:absolute;top:0;bottom:0;transform:translate(-1px)}.pdf-split-view input[type=range]{opacity:0;cursor:ew-resize;z-index:3;width:100%;height:100%;margin:0;position:absolute;inset:0}.added{color:#166534;background:#f0fdf4}.removed{color:#991b1b;background:#fef2f2}.creator{grid-template-columns:.65fr 1.35fr;align-items:center;gap:2rem;display:grid}.creator-mark{aspect-ratio:1;color:#fff;max-width:320px;box-shadow:var(--shadow);background:linear-gradient(145deg,#0b1736,#2563eb);border-radius:34px;place-items:center;font-size:4rem;font-weight:900;display:grid}.contact-layout{grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);align-items:start;gap:1.25rem;display:grid}.contact-section-heading{margin-bottom:1.4rem}.contact-section-heading h2{margin:.4rem 0 .45rem;font-size:clamp(1.6rem,3vw,2.25rem)}.contact-section-heading p{color:var(--muted);margin:0}.contact-form{gap:1.1rem;display:grid}.contact-form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem;display:grid}.contact-form .field label span{color:var(--muted);font-weight:600}.contact-message{min-height:170px;font-family:inherit}.contact-form .field small{color:var(--muted)}.contact-form-footer{align-items:center;gap:1rem;display:flex}.contact-response-note{color:var(--muted);margin:0;font-size:.82rem}.form-honeypot{width:1px;height:1px;position:absolute;left:-10000px;overflow:hidden}.form-success{color:var(--green);background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px;padding:.8rem 1rem;font-weight:750}.contact-details{position:sticky;top:96px}.contact-email{overflow-wrap:anywhere;font-size:clamp(1rem,3vw,1.25rem);font-weight:800;display:inline-block}.contact-details .contact-email{font-size:.98rem}.ai-services-section{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);background:linear-gradient(135deg,#eef4ff,#fff 55%,#eefaf7);gap:1.5rem;margin:4.5rem 0 1rem;padding:clamp(1.3rem,4vw,2.5rem);display:grid}.ai-services-intro{max-width:780px}.ai-services-intro h2{margin:.55rem 0 .8rem;font-size:clamp(2rem,4vw,3.2rem)}.ai-services-intro p{color:var(--muted);margin:0;font-size:1.06rem}.ai-services-intro .button{margin-top:1.35rem}.ai-services-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.ai-service-card{border:1px solid var(--line);background:#ffffffe6;border-radius:14px;min-width:0;padding:1.25rem}.ai-service-card h3{margin:0 0 .45rem;font-size:1.1rem}.ai-service-card p{color:var(--muted);margin:0;font-size:.94rem}.ai-process{border-top:1px solid var(--line);padding-top:.5rem}.ai-process ol{color:var(--muted);grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem 1.5rem;margin:1rem 0 0;padding-left:1.3rem;display:grid}.ai-process li{padding-left:.15rem}.ai-process strong{color:var(--ink)}.site-footer{border-top:1px solid var(--line);color:#fff;background:#0b1220;margin-top:5rem}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr);gap:2rem;padding:3.5rem 0;display:grid}.footer-grid p,.footer-grid a{color:#aeb9c8}.footer-grid a{padding:.25rem 0;text-decoration:none;display:block}.footer-grid a:hover{color:#fff}.footer-bottom{color:#94a3b8;border-top:1px solid #243044;padding:1.2rem 0;font-size:.8rem}@media (max-width:900px){.desktop-nav,.nav-cta{display:none}.menu-btn{place-items:center;display:inline-grid}.grid.cards-2,.grid.cards-4,.grid.cards-3{grid-template-columns:repeat(2,1fr)}.detail-grid,.converter-pair,.finance-shell,.contact-layout{grid-template-columns:1fr}.contact-details{position:static}}@media (max-width:640px){.container{width:min(100% - 1.25rem,1160px)}.hero{padding-top:3.5rem}.actions .button{width:100%}.trust-strip{grid-template-columns:1fr}.trust-item+.trust-item{border-left:0;border-top:1px solid var(--line)}.section{padding:3.4rem 0}.section-head,.product-cta{flex-direction:column;align-items:flex-start}.product-cta .button{width:100%}.grid.cards-2,.grid.cards-3,.grid.cards-4{grid-template-columns:1fr}.tool-groups{gap:3rem;padding-bottom:3.4rem}.controls,.calc-grid,.diff-grid,.pdf-upload-grid{grid-template-columns:1fr}.pdf-mode-buttons{display:flex;overflow-x:auto}.pdf-mode-button{flex:none}.pdf-page-controls{justify-content:flex-start}.pdf-compare-viewport{min-height:360px;padding:.55rem}.measurement-grid{grid-template-columns:1fr 1fr}.measurement-grid .field:last-child{grid-column:1/-1}.converter-output-grid{grid-template-columns:1fr}.converter-output-grid>div+div{border-left:0;border-top:1px solid var(--line)}.mobile-nav .nav-development{justify-content:space-between}.finance-range-head{flex-direction:column;align-items:flex-start;gap:.15rem}.finance-rows>div{flex-direction:column;align-items:flex-start;gap:.2rem}.finance-rows strong{text-align:left}.creator{grid-template-columns:1fr}.creator-mark{border-radius:24px;max-width:180px}.contact-form-grid,.ai-services-grid,.ai-process ol{grid-template-columns:1fr}.contact-form-footer{flex-direction:column;align-items:stretch}.contact-form-footer .button{width:100%}.footer-grid{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}