:root{--navy:#14315A;--ink:#0E1B2A;--copper:#C2772C;--copper-light:#E7A24E;--copper-text:#9A5A1C;--copper-btn:#A9631F;--copper-btn-h:#8F5319;--paper:#F7F8FA;--card:#FFFFFF;--line:#E3E8EF;--muted:#5B6A7D;--plumbing:#2B7FB8;--electrical:#E08A1E;--bathroom:#2AA79B;--success:#2E9E6B;--radius:10px;--shadow:0 2px 8px rgba(20,49,90,0.08);}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;font-size:16px;line-height:1.65;color:var(--ink);background:var(--paper)}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;color:var(--ink)}
.mono{font-family:'JetBrains Mono',monospace}
a{text-decoration:none;color:inherit}img,svg{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}.container-narrow{max-width:820px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;border-radius:8px;font-weight:600;font-size:15px;cursor:pointer;transition:all 200ms ease-out;border:2px solid transparent}
.btn-primary{background:var(--copper-btn);color:#fff}.btn-primary:hover{background:var(--copper-btn-h)}
.btn-primary:focus-visible{outline:2px solid var(--copper-btn);outline-offset:2px}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--navy)}.btn-outline:hover{background:rgba(20,49,90,0.08)}
header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:100}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:1400px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk';font-weight:700;font-size:20px;color:#fff}.logo-mark{width:32px;height:32px}
nav ul{list-style:none;display:flex;gap:28px;align-items:center}nav a{font-size:15px;font-weight:500;color:#E3E8EF;transition:color 150ms}nav a:hover{color:var(--copper-light)}
.nav-cta{background:var(--copper-btn);color:#fff;padding:10px 20px;border-radius:8px;font-weight:600;font-size:14px}.nav-cta:hover{background:var(--copper-btn-h);color:#fff}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer}
.eyebrow{color:var(--copper-text);font-weight:600;font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px;display:block}
section{padding:56px 0}
.crumb{max-width:1180px;margin:0 auto;padding:16px 24px 0;font-size:13px;color:var(--muted)}.crumb a:hover{color:var(--copper-text)}.crumb span{margin:0 6px}
.hub-hero{background:linear-gradient(180deg,var(--navy) 0%,#1a3d6e 100%);color:#fff;padding:56px 0}
.hub-hero h1{font-size:38px;line-height:1.15;margin:14px 0 16px}.hub-hero .lede{font-size:18px;color:#C9D4E3;max-width:64ch;margin-bottom:24px}
.hub-hero .btn-outline{border-color:#fff;color:#fff}.hero-ctas{display:flex;gap:14px;flex-wrap:wrap}
.chip{display:inline-block;padding:4px 12px;border-radius:100px;font-size:12px;font-weight:600}
.chip.plumbing{background:rgba(43,127,184,.16);color:#1E6390}.chip.electrical{background:rgba(224,138,30,.18);color:#8A4E0E}.chip.bathroom{background:rgba(42,167,155,.18);color:#1B7268}
.hub-hero .chip{background:rgba(255,255,255,.14);color:#fff}
.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:32px 0;font-size:14px;line-height:2}
.toc strong{color:var(--ink)}.toc a{color:var(--copper-text);font-weight:500;margin-right:14px}.toc a:hover{text-decoration:underline}
.cat-sec{border-top:1px solid var(--line);padding:36px 0;max-width:820px}.cat-sec h2{font-size:24px;margin-bottom:10px}.cat-sec>p{color:var(--muted);margin-bottom:16px}
.pchips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.pchip{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:5px 12px;font-size:13px;font-family:'JetBrains Mono';color:var(--navy)}
.specify{background:var(--card);border-left:4px solid var(--copper);border-radius:0 var(--radius) var(--radius) 0;padding:20px 24px;box-shadow:var(--shadow)}
.specify h3{font-size:15px;margin-bottom:10px}.specify ul{margin-left:18px;font-size:14px;color:#37485c}.specify li{margin-bottom:6px}
.ind{font-size:12px;color:var(--muted);margin-top:12px}
.xsystems{max-width:820px}.xsystems h2{font-size:20px;margin-bottom:16px}.xlinks{display:flex;gap:16px;flex-wrap:wrap}
.xlink{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 20px;font-weight:600;color:var(--navy);box-shadow:var(--shadow)}.xlink:hover{border-color:var(--copper)}
.whenwrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0}
.whenbox{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow)}
.whenbox h3{font-size:16px;margin-bottom:8px;color:var(--navy)}.whenbox p{color:var(--muted);font-size:14px}
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.door-card{background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-top:4px solid var(--copper);transition:transform 200ms,box-shadow 200ms;display:block}
.door-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(20,49,90,.14)}
.door-card h3{font-size:18px;margin:10px 0 8px}.door-card p{color:var(--muted);font-size:13px;margin-bottom:12px}
.door-link{font-weight:600;font-size:14px;color:var(--navy)}.door-link::after{content:" →"}
.spec-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:14px}
.spec-table th{background:var(--navy);color:#fff;text-align:left;padding:12px 16px;font-weight:600}
.spec-table td{padding:12px 16px;border-bottom:1px solid var(--line)}.spec-table tr:nth-child(even){background:var(--paper)}
.faq-sec{max-width:820px}.faq-sec h2{font-size:22px;margin-bottom:16px}
.faq{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}.faq-item:last-child{border-bottom:none}
.faq-q{padding:18px 20px;font-weight:600;font-size:15px}.faq-a{padding:0 20px 18px;color:var(--muted);font-size:14px}
.cta-band{background:var(--navy);color:#fff;text-align:center;padding:48px 24px;border-radius:var(--radius);margin:24px 0}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px}.cta-band p{color:#C9D4E3;margin-bottom:24px}
footer{background:var(--ink);color:#C9D4E3;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}.footer-col ul{list-style:none}.footer-col li{margin-bottom:10px;font-size:14px}.footer-col a:hover{color:var(--copper-light)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;font-size:13px;color:#8497AC;flex-wrap:wrap;gap:12px}.footer-bottom a:hover{color:var(--copper-light)}
/* calculator */
.calc-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:32px;margin:32px 0;align-items:start}
.calc-form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.calc-form label{display:block;font-size:14px;font-weight:600;margin:16px 0 6px}
.calc-form input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:'JetBrains Mono'}
.calc-form input:focus{outline:2px solid var(--copper);border-color:var(--copper)}
.calc-out{background:var(--ink);color:#fff;border-radius:var(--radius);padding:28px}
.calc-out h3{color:#fff;font-size:18px;margin-bottom:16px}
.crow{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:14px}
.crow span:first-child{color:#9AABBF}.crow span:last-child{font-family:'JetBrains Mono';font-weight:500;color:var(--copper-light)}
@media (max-width:900px){.calc-wrap{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.doors{grid-template-columns:1fr 1fr}}
@media (max-width:767px){nav ul{display:none}.menu-toggle{display:block}.hub-hero h1{font-size:30px}.footer-grid{grid-template-columns:1fr}.whenwrap{grid-template-columns:1fr}.doors{grid-template-columns:1fr}section{padding:40px 0}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}