@font-face{font-family:system-fallback;src:local(Arial);font-display:swap}
:root{--ink:#202725;--muted:#6f7771;--paper:#f5f5ef;--line:#dcdfd5;--copper:#cc7548;--copper-dark:#984c2c;--light:#fff;--green:#487765;--radius:20px;font-family:Inter,Arial,system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:20px}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #b55d30;outline-offset:4px}[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.045em}h1{font-size:clamp(38px,4.5vw,64px);font-weight:650;line-height:1.04;margin-bottom:24px}h2{font-size:28px;line-height:1.13;font-weight:650}h3{font-size:26px}p{line-height:1.6}small{font-size:12px}button{color:inherit}input,select,textarea{width:100%;min-width:0;min-height:50px;border:1px solid var(--line);background:#fbfcf8;border-radius:10px;padding:13px 14px;color:var(--ink)}select{padding-right:28px}input::placeholder,textarea::placeholder{color:#858d86}textarea{resize:vertical}label{display:block;font-size:13px;font-weight:600;line-height:1.5}label input,label select,label textarea{display:block;margin-top:7px;font-weight:400;font-size:16px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:16px 12px;text-align:left;border-bottom:1px solid var(--line)}th{font-size:12px;color:var(--muted)}.site-header,.hero-inner,.workspace,.estimate-banner,.section,.content-card,.footer,.admin-shell{max-width:1184px;margin-left:auto;margin-right:auto}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 24px}.brand{text-decoration:none;display:inline-flex;align-items:center;gap:10px;font-size:25px;font-weight:700;letter-spacing:-1px;line-height:1}.brand b{color:var(--copper);font-weight:750}.brand small{display:block;font-weight:500;font-size:8px;letter-spacing:1.4px;margin-top:7px;color:var(--muted)}.site-header nav{display:flex;gap:28px;font-size:13px}.site-header nav a{text-decoration:none;padding:12px 0;color:#626c65}.site-header nav a[aria-current=page]{color:var(--ink);border-bottom:2px solid var(--copper)}.header-link{font-size:12px;text-decoration:none;border:1px solid var(--line);padding:13px 17px;border-radius:8px}.hero{background:linear-gradient(100deg,#eeeee5,#f6f6f0);border-block:1px solid var(--line)}.hero-inner{display:flex;align-items:center;justify-content:space-between;padding:52px 24px 65px;gap:40px}.eyebrow{display:block;font-size:10px;font-weight:700;letter-spacing:1.8px;color:var(--copper-dark);margin-bottom:18px}.hero p{color:#626b63;margin-bottom:0;font-size:15px;line-height:1.65}.hero-stamp{display:flex;align-items:center;gap:22px;color:#737c73;font-size:12px;line-height:1.6;padding-right:32px}.stamp-value{font-size:69px;font-weight:500;line-height:1.1;border:1px solid #d5d9cf;border-radius:18px;padding:22px;color:#a5b0a0;letter-spacing:-5px;position:relative}.stamp-value small{font-size:12px;letter-spacing:0;position:absolute;right:14px;top:9px}.workspace{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;padding:0 24px;position:relative;margin-top:-26px}.calc-card,.content-card{background:var(--light);border:1px solid var(--line);border-radius:var(--radius);padding:30px}.card-top{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:22px}.card-top h2{font-size:21px;margin:0}.tag{font-size:9px;font-weight:650;letter-spacing:1.2px;color:#7b847a}.mark-search{display:flex;border:1px solid #cfd5c8;border-radius:10px;overflow:hidden;background:#f7f9f3}.mark-search input{border:0;background:transparent;min-height:50px;border-radius:0}.mark-search button{border:0;background:transparent;width:54px;font-size:25px;color:var(--copper-dark)}.quick-chips{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 25px}.quick-chips button{font-size:11px;border:1px solid var(--line);background:white;padding:8px 10px;border-radius:6px;min-height:33px}.quick-chips button:hover{background:#f1eee8;border-color:#c6a68f}.fields{display:grid;gap:18px}.two{grid-template-columns:1fr 1fr}.optional{font-weight:400;color:var(--muted);font-size:10px}.field-help{font-size:11px;line-height:1.5;color:#788176;margin:9px 0 17px}.group-row{display:grid;grid-template-columns:1fr 1fr 30px;align-items:end;gap:18px;margin:16px 0}.group-row:first-child{grid-template-columns:1fr 1fr}.group-row label{min-width:0}.group-row button{border:0;background:transparent;min-height:50px;font-size:21px;color:var(--muted)}.text-button{border:0;background:none;padding:5px 0;color:var(--copper-dark);text-align:left;font-size:12px;min-height:35px}.mode-switch{display:flex;gap:4px;background:#f2f3ed;border-radius:8px;padding:4px;margin:19px 0}.mode-switch button{flex:1;background:transparent;border:0;padding:11px 6px;border-radius:5px;font-size:11px;min-height:40px}.mode-switch button.active{background:white;box-shadow:0 2px 6px #2027250d}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;border:0;border-radius:9px;min-height:50px;padding:15px 20px;font-size:13px;font-weight:600;line-height:1.3;text-decoration:none}.button span{font-size:20px}.primary{background:var(--copper);color:#201b16}.primary:hover{background:#d88455}.secondary{background:#e9ece4;border:1px solid var(--line)}.full{width:100%;justify-content:space-between}.footnote{font-size:10px;color:#81897f;line-height:1.5;margin:15px 0 0}.result-card{background:var(--ink);color:#f5f5ed;border-radius:var(--radius);padding:30px;position:relative;overflow:hidden}.result-card h2{font-size:19px}.result-dot{color:#88aa79;font-size:12px}.cross-section{position:relative;height:152px;width:152px;display:flex;align-items:center;justify-content:center;margin:20px auto 23px;border:2px solid #4a5048;border-radius:50%;background:radial-gradient(ellipse,#393e35 46%,#252c26 47%,#41483d 66%,#252c26 67%);transform:rotate(-10deg)}.cross-section i{position:absolute;width:47px;height:47px;border:7px solid #73775c;border-radius:50%;background:repeating-radial-gradient(circle,#e19d64 0,#e19d64 2px,#9b603c 3px,#b88051 5px);box-shadow:0 0 0 3px #161b17}.cross-section i:nth-child(1){left:27px;top:31px;border-color:#a09d81}.cross-section i:nth-child(2){right:20px;top:34px;border-color:#778b8a}.cross-section i:nth-child(3){left:51px;bottom:23px;border-color:#96926b}.cross-section span{position:absolute;right:-25px;top:-7px;transform:rotate(10deg);font-size:10px;padding:6px;border:1px solid #626956;border-radius:5px;color:#b6bea7}.result-card>p{font-size:12px;color:#bbc2b6;margin-bottom:6px}.big-number{font-size:clamp(38px,4.7vw,65px);font-weight:500;letter-spacing:-.045em;font-variant-numeric:tabular-nums;line-height:1.2;overflow-wrap:anywhere}.big-number small{font-size:23px;font-weight:400;color:#aeb7a5;letter-spacing:-1px}.result-details{margin:24px 0}.result-details>div{display:flex;justify-content:space-between;gap:14px;font-size:12px;padding:13px 0;border-bottom:1px solid #454c40}.result-details span{color:#b2bba9}.result-details strong{text-align:right;font-weight:500}.result-actions{display:flex;gap:10px}.quiet{background:#333d32;color:#dfe5d7;border:1px solid #4b5648;flex:1;min-height:44px;padding:12px 8px;font-size:11px}.light{color:#c1cbb6;margin-top:8px}.result-disclaimer{display:flex;gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid #454c40;color:#aeb8a4}.result-disclaimer>span{font-size:28px;line-height:1}.result-disclaimer p{font-size:10px;line-height:1.6;margin:0}.method-link{display:inline-block;font-size:10px;color:#c9d2c1;margin-top:15px}.estimate-banner{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:28px;padding:30px 54px;background:#eaece2;border:1px solid #dce0d4;border-radius:16px;max-width:1136px}.estimate-banner .eyebrow{margin-bottom:12px;font-size:9px}.estimate-banner h2{font-size:25px;margin-bottom:12px}.estimate-banner p{font-size:12px;color:#687561;margin:0}.estimate-banner .button{white-space:nowrap}.estimate-form{margin-top:24px;max-width:1136px}.estimate-form label{margin-top:14px}.quantity-field{display:flex;gap:6px}.quantity-field input{width:36%}.quantity-field select{width:64%;font-size:12px}.check{display:flex;align-items:flex-start;gap:12px;font-size:12px;font-weight:400;max-width:780px;margin:18px 0}.check input{min-height:22px;height:22px;width:22px;flex-shrink:0;accent-color:var(--copper-dark);margin-top:0}.check span{padding-top:2px}.calculation-summary{background:#f1f3ec;padding:16px;border-radius:10px;font-size:12px;line-height:1.6;margin-top:20px}.icon-button{border:0;background:none;font-size:25px;min-width:40px;min-height:40px}.notice,.form-error{padding:15px 18px;border-radius:9px;font-size:13px;line-height:1.6;background:#fbf1df;border:1px solid #eadabc}.form-error{background:#fdf0e9;border-color:#e8c9b8;color:#873e2d;margin-bottom:14px}.section{padding:0 24px;margin-top:62px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}.section-heading h2{margin:0}.section-heading .eyebrow{font-size:9px;margin-bottom:12px}.section-heading>a{font-size:12px}.cable-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.cable-card{text-decoration:none;border:1px solid var(--line);background:#fafbf6;border-radius:12px;padding:25px;transition:background .2s,transform .2s}.cable-card:hover{background:white;transform:translateY(-2px)}.cable-card .tag{color:var(--copper-dark)}.cable-card h3{font-size:31px;margin:13px 0 16px;letter-spacing:-1px}.cable-card h3 small{font-weight:400;font-size:13px;color:var(--muted)}.cable-card p{font-size:11px;color:var(--muted);margin:0 0 8px}.cable-card strong{display:flex;justify-content:space-between;font-size:14px;font-weight:500}.cable-card strong span{color:var(--copper-dark)}.method-section{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.method-section p{font-size:13px;color:var(--muted);max-width:420px}.method-section a{font-size:12px}.formula-card{padding:30px;background:#e9ece2;border-radius:14px;border:1px solid var(--line)}.formula-card>span{display:block;font-size:9px;letter-spacing:1px;color:#788372;margin-bottom:18px}.formula-card strong{display:block;font-size:25px;letter-spacing:-.04em;font-weight:500;line-height:1.5;overflow-wrap:anywhere}.formula-card p{font-size:12px;margin:16px 0 0}.saved-list{display:grid;gap:10px}.saved-row{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:15px;background:white;border:1px solid var(--line);border-radius:9px;font-size:13px}.footer{display:grid;grid-template-columns:1fr 1.3fr 1.2fr;gap:30px;border-top:1px solid var(--line);margin-top:75px;padding:35px 24px 30px}.footer>.brand{font-size:23px;align-self:start}.footer p{font-size:11px;color:var(--muted);margin:0}.footer>div{display:grid;grid-template-columns:1fr 1fr;gap:15px 12px;font-size:10px;color:#68735f}.footer>small{grid-column:1/-1;color:#8b9485;font-size:9px}.document{margin-top:26px;padding:48px;min-height:450px}.document h1{font-size:45px}.document h2{font-size:25px;margin-top:32px}.document>p,.article>p{font-size:14px;color:#68715f;max-width:850px}.article{margin-top:28px;max-width:1136px}.article h2{font-size:24px}.reference-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:25px}.reference-card{background:#f5f6f0;padding:24px;border:1px solid var(--line);border-radius:12px}.reference-card h2{margin:14px 0;font-size:25px}.reference-card p{font-size:12px;color:var(--muted);min-height:110px}.reference-card a{font-size:12px}.reference-links{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;font-size:13px}.narrow{max-width:550px;margin-left:0}.narrow>label{margin-bottom:20px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:min(500px,90vw);background:#202725;color:#f7f9ef;padding:16px 23px;border-radius:10px;box-shadow:0 8px 30px #0002;font-size:13px;z-index:50}.skip{position:absolute;top:-60px;left:20px;background:white;padding:12px;z-index:99}.skip:focus{top:10px}.sr-only,.trap{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.admin-shell{padding:35px 24px}.admin-shell h1{font-size:42px;margin:0}.admin-shell .content-card{margin-left:0}.admin-tabs{display:flex;gap:7px;flex-wrap:wrap;margin:24px 0}.admin-tabs button{border:1px solid var(--line);padding:13px 18px;border-radius:8px;background:#fff;min-height:45px}.admin-tabs .active{background:var(--ink);color:white}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:20px 0}.stat{background:white;border:1px solid var(--line);padding:20px;border-radius:12px}.stat strong{display:block;font-size:30px;margin-bottom:7px}.stat span{font-size:11px;color:var(--muted)}.admin-tools{display:flex;gap:10px;margin-bottom:22px}.admin-tools input{flex:2}.admin-tools select{flex:1}.admin-tools button{white-space:nowrap}.lead-card{padding:25px;background:white;border:1px solid var(--line);border-radius:16px;margin:16px 0}.lead-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px}.lead-head h3{margin-bottom:8px;font-size:21px}.lead-head small{color:var(--muted)}.lead-card dl{display:grid;grid-template-columns:140px 1fr;gap:9px;font-size:13px;margin:22px 0}.lead-card dt{color:var(--muted)}.lead-card dd{margin:0;overflow-wrap:anywhere}.lead-card details{font-size:12px;margin:18px 0;line-height:1.6}.lead-card details p{overflow-wrap:anywhere}.lead-card summary{cursor:pointer;color:var(--copper-dark)}.lead-photos{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.lead-photos img{width:90px;height:90px;object-fit:cover;border-radius:7px}.lead-edit{display:grid;grid-template-columns:1fr 2fr;gap:15px}.lead-edit label{min-width:0}.lead-edit .actions{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:10px}.danger{background:#f7e6e0;color:#8a3a23}.empty-state{padding:40px;border:1px dashed #cfd7c6;border-radius:15px;text-align:center;color:var(--muted);line-height:1.6}.report-table{background:white;border:1px solid var(--line);border-radius:12px;padding:20px}.admin-shell #settings-form>label{margin-bottom:18px}.admin-shell #settings-form>p{font-size:13px;color:var(--muted)}
@media(min-width:1250px){.hero-inner{padding-bottom:74px}.workspace{margin-top:-30px}}
@media(max-width:900px){.site-header nav{gap:16px}.header-link{display:none}.hero-stamp{padding-right:0;gap:15px}.hero-stamp>span:last-child{display:none}.workspace{gap:16px}.calc-card,.result-card{padding:23px}.big-number{font-size:43px}.estimate-banner{margin-left:24px;margin-right:24px;padding:28px}.reference-grid{grid-template-columns:1fr 1fr}.footer{grid-template-columns:1fr 1fr}.footer>div{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:22px}.admin-tools{flex-wrap:wrap}.admin-tools input{flex-basis:60%}.lead-edit{grid-template-columns:1fr}}
@media(max-width:640px){h1{font-size:40px;letter-spacing:-1.8px}.site-header{padding:20px 18px 0;gap:12px;flex-wrap:wrap}.brand{font-size:23px}.brand img{width:34px;height:34px}.brand small{font-size:7px}.site-header nav{order:3;width:100%;justify-content:space-between;font-size:12px;gap:20px;margin-top:8px}.site-header nav a{padding:14px 0}.hero-inner{padding:34px 20px 51px;gap:16px}.hero .eyebrow{font-size:8px;letter-spacing:1.5px;margin-bottom:16px}.hero p{font-size:12px;line-height:1.6}.hero-stamp{display:none}.hero h1{margin-bottom:17px}.desktop{display:none}.workspace{grid-template-columns:1fr;padding:0 14px;margin-top:-22px;gap:16px}.calc-card,.result-card{padding:22px 20px;border-radius:15px}.card-top h2{font-size:19px}.tag{font-size:8px}.quick-chips{gap:5px;margin-bottom:22px}.quick-chips button{font-size:10px;padding:8px}.fields,.group-row{gap:12px}.group-row{grid-template-columns:1fr 1fr 24px}.group-row:first-child{grid-template-columns:1fr 1fr}.optional{display:block;font-size:9px}.two>label{display:flex;flex-direction:column;justify-content:flex-end}.two .optional{display:inline}.mode-switch button{font-size:10px}.button{font-size:12px;min-height:50px}.cross-section{width:133px;height:133px;margin:8px auto 18px}.cross-section i{width:40px;height:40px;border-width:6px}.cross-section i:nth-child(1){left:23px;top:28px}.cross-section i:nth-child(2){right:19px;top:29px}.cross-section i:nth-child(3){left:44px;bottom:22px}.big-number{font-size:51px}.result-card .card-top{margin-bottom:12px}.result-details{margin:18px 0}.estimate-banner{margin:20px 14px 0;display:block;padding:25px 20px}.estimate-banner h2{font-size:25px}.estimate-banner .button{margin-top:22px;white-space:normal;width:100%}.content-card{padding:23px 20px;border-radius:15px;margin-left:14px;margin-right:14px}.estimate-form>.card-top{align-items:flex-start}.estimate-form .eyebrow{font-size:8px}.estimate-form .two{grid-template-columns:1fr}.quantity-field input{width:33%}.quantity-field select{width:67%}.section{padding:0 20px;margin-top:42px}.section-heading{align-items:flex-end;gap:12px}.section-heading h2{font-size:24px}.section-heading>a{font-size:10px;white-space:nowrap}.section-heading .eyebrow{font-size:8px;letter-spacing:1px}.cable-grid{grid-template-columns:1fr 1fr;gap:10px}.cable-card{padding:18px 13px}.cable-card h3{font-size:28px}.cable-card h3 small{font-size:10px}.cable-card p{font-size:9px}.cable-card strong{font-size:11px}.method-section{grid-template-columns:1fr;gap:20px}.method-section h2{font-size:29px}.formula-card{padding:23px}.formula-card strong{font-size:25px}.footer{margin-top:45px;padding:28px 20px;gap:22px}.footer>.brand{font-size:23px}.footer p{font-size:9px}.footer>div{display:grid;font-size:9px;grid-template-columns:1fr 1fr;gap:16px}.footer>small{font-size:8px;line-height:1.7}.document{padding:30px 20px;min-height:350px}.document h1{font-size:34px}.document h2{font-size:24px}.document>p{font-size:13px}.reference-grid{grid-template-columns:1fr;gap:12px}.reference-card p{min-height:0}.reference-links{grid-template-columns:1fr 1fr;font-size:12px}.article{margin-top:20px}.article table{font-size:12px}.article th,.article td{padding:13px 6px}.article>p{font-size:12px}.admin-shell{padding:25px 14px}.admin-shell h1{font-size:31px}.admin-shell .content-card{margin:0}.admin-shell .section-heading{align-items:center}.admin-tabs{gap:5px}.admin-tabs button{font-size:11px;padding:12px 11px}.stats-grid{grid-template-columns:1fr 1fr;gap:8px}.stat{padding:16px}.admin-tools input,.admin-tools select{flex-basis:100%}.admin-tools button{flex:1}.lead-card{padding:20px 17px}.lead-head{flex-wrap:wrap}.lead-card dl{grid-template-columns:90px 1fr;font-size:12px}.lead-edit .actions{flex-wrap:wrap}.lead-edit .actions button{width:100%}.lead-card h3{font-size:20px}.saved-row{font-size:11px}.toast{bottom:15px;font-size:12px}.form-error,.notice{font-size:12px}.narrow{max-width:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.arrow{display:inline-block;width:.65em;height:.65em;position:relative;border-top:1.4px solid currentColor;border-right:1.4px solid currentColor;flex-shrink:0;margin:0 2px 0 3px;vertical-align:middle}.arrow:after{content:"";position:absolute;right:-1px;top:-1px;width:.9em;border-top:1.4px solid currentColor;transform:rotate(-45deg);transform-origin:right top}