:root{--navy:#0b1f33;--navy2:#13304d;--accent:#f26b1d;--accent-d:#c9530f;--teal:#0e7c86;--ink:#1b2430;--muted:#556170;--bg:#f5f7fa;--line:#dde3ea;--white:#fff;--radius:10px;--max:1140px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;font-size:17px}
img{max-width:100%;height:auto}a{color:var(--teal)}a:hover{color:var(--navy)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:99}
/* header */
.topbar{background:var(--navy);color:#cfd9e4;font-size:14px}
.topbar .wrap{display:flex;justify-content:space-between;gap:10px;padding-top:6px;padding-bottom:6px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;font-weight:600}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:800;font-size:22px;letter-spacing:.5px}
.logo .mark{background:var(--navy);color:#fff;border-radius:8px;padding:4px 9px;font-size:20px}
.logo .mark b{color:var(--accent)}
.logo small{display:block;font-size:11px;font-weight:600;color:var(--muted);letter-spacing:1px;text-transform:uppercase;line-height:1.1}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
nav.main a{display:block;padding:8px 9px;white-space:nowrap;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;border-radius:6px}
nav.main a:hover,nav.main a[aria-current=page]{background:var(--bg);color:var(--teal)}
.nav-cta{display:flex;gap:8px;align-items:center}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;font-size:15px;font-weight:700;cursor:pointer}
@media (max-width:1180px){
 .menu-btn{display:block}
 nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.08)}
 nav.main.open{display:block}
 nav.main ul{flex-direction:column;align-items:stretch;padding:10px 20px}
 .nav-cta .btn-quote{display:none}
}
/* buttons */
.btn{white-space:nowrap;display:inline-block;padding:12px 20px;border-radius:8px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:16px;line-height:1.2;text-align:center}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-d);color:#fff}
.btn-dark{background:var(--navy);color:#fff}.btn-dark:hover{background:var(--navy2);color:#fff}
.btn-outline{border-color:var(--navy);color:var(--navy);background:#fff}.btn-outline:hover{background:var(--navy);color:#fff}
.btn-light{border-color:#fff;color:#fff;background:transparent}.btn-light:hover{background:#fff;color:var(--navy)}
.btn-sm{padding:8px 14px;font-size:14px}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 60%,#0e4b5a 100%);color:#fff;padding:64px 0 56px}
.hero h1{font-size:clamp(30px,4.4vw,48px);line-height:1.15;margin:0 0 14px}
.hero p.lead{font-size:clamp(17px,2vw,20px);color:#d5e1ec;max-width:760px;margin:0}
.hero .eyebrow{display:inline-block;background:rgba(255,255,255,.12);padding:4px 12px;border-radius:30px;font-size:13px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;margin-bottom:14px}
.hero.small{padding:44px 0 38px}
.crumbs{font-size:14px;color:#b7c7d6;margin-bottom:10px}.crumbs a{color:#fff}
/* sections */
section{padding:56px 0}section.alt{background:var(--bg)}
h2{font-size:clamp(24px,3vw,32px);line-height:1.2;color:var(--navy);margin:0 0 14px}
h3{font-size:20px;color:var(--navy);margin:0 0 8px}
.sub{color:var(--muted);max-width:760px;margin:0 0 28px}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column}
.card p{margin:0 0 12px;color:#3a4553}.card .more{margin-top:auto;font-weight:700;text-decoration:none}
.icon{width:44px;height:44px;border-radius:10px;background:#e8f3f4;color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px}
ul.check{list-style:none;padding:0;margin:0 0 12px}ul.check li{padding-left:28px;position:relative;margin:6px 0}
ul.check li:before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
.banner{background:var(--accent);color:#fff;padding:40px 0}.banner h2{color:#fff}
.banner .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.notice{background:#fff7e6;border:1px solid #f5d38a;border-left:5px solid #e6a100;padding:14px 18px;border-radius:8px;margin:18px 0;color:#4a3b10}
.notice.info{background:#eef7f8;border-color:#b8dde0;border-left-color:var(--teal);color:#1d3a3d}
.callout-strong{background:var(--navy);color:#fff;border-radius:var(--radius);padding:22px 26px;font-size:18px}
.callout-strong strong{color:#ffb27f}
.two{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:start}
@media (max-width:860px){.two{grid-template-columns:1fr}}
/* how-to */
.toc{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px}
.toc ol{margin:0;padding-left:20px}.toc li{margin:4px 0}
details.howto{border:1px solid var(--line);border-radius:var(--radius);margin:12px 0;background:#fff}
details.howto summary{cursor:pointer;padding:16px 20px;font-weight:700;color:var(--navy);font-size:18px;list-style:none}
details.howto summary::-webkit-details-marker{display:none}
details.howto summary:after{content:"+";float:right;font-size:22px;color:var(--teal)}
details.howto[open] summary:after{content:"–"}
details.howto .body{padding:0 20px 18px}
details.howto ol li{margin:5px 0}
table.codes{width:100%;border-collapse:collapse;margin:10px 0 18px;font-size:16px;background:#fff}
table.codes th,table.codes td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
table.codes th{background:var(--navy);color:#fff}
table.codes tr:nth-child(even) td{background:#f8fafc}
kbd{background:#eef2f6;border:1px solid #cdd6df;border-bottom-width:2px;border-radius:4px;padding:1px 6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em;white-space:nowrap}
.tag{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;background:#fff1e8;color:var(--accent-d);padding:2px 8px;border-radius:20px;margin-left:6px;vertical-align:middle}
/* app buttons */
.store{display:flex;gap:12px;flex-wrap:wrap}
.store a{display:flex;align-items:center;gap:10px;background:#000;color:#fff;text-decoration:none;border-radius:10px;padding:10px 16px;min-width:200px}
.store a span{display:block;font-size:11px;opacity:.85}.store a strong{display:block;font-size:17px}
.store a:hover{background:#222;color:#fff}.store .ic{font-size:26px}
/* forms */
form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){form .row{grid-template-columns:1fr}}
label{display:block;font-weight:700;margin:12px 0 6px;color:var(--navy)}
input[type=text],input[type=email],input[type=tel],input[type=number],select,textarea{width:100%;padding:11px 12px;border:1px solid #b9c4cf;border-radius:8px;font:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:3px solid #9fd3d8;border-color:var(--teal)}
fieldset{border:none;padding:0;margin:0}legend{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:6px;padding:0}
.opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:8px}
.opt{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:8px;padding:11px 12px;background:#fff;font-weight:600;margin:0;cursor:pointer;color:var(--ink)}
.opt input{margin-top:5px}.opt:has(input:checked){border-color:var(--teal);background:#eef7f8}
.hint{font-size:14px;color:var(--muted);font-weight:400}
.quote-shell{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 10px 30px rgba(11,31,51,.06)}
.progress{display:flex;gap:6px;margin-bottom:22px}.progress span{flex:1;height:7px;border-radius:4px;background:#e2e8ee}
.progress span.on{background:var(--teal)}
.step{display:none}.step.active{display:block}
.step-nav{display:flex;justify-content:space-between;gap:10px;margin-top:26px}
.estimate{background:linear-gradient(135deg,var(--navy),#0e4b5a);color:#fff;border-radius:12px;padding:24px;margin-top:10px}
.estimate h3{color:#fff}.estimate .big{font-size:30px;font-weight:800;color:#ffb27f}
.estimate table{width:100%;border-collapse:collapse;margin-top:10px;font-size:15px}
.estimate td{padding:6px 0;border-bottom:1px solid rgba(255,255,255,.15)}.estimate td:last-child{text-align:right}
.err{color:#b00020;font-weight:700;font-size:15px;margin-top:8px}
.hp{position:absolute;left:-5000px}
/* footer */
footer.site{background:var(--navy);color:#c8d4e0;padding:44px 0 20px;font-size:15px}
footer.site a{color:#fff;text-decoration:none}footer.site a:hover{text-decoration:underline}
footer.site h4{color:#fff;margin:0 0 10px;font-size:16px}
footer.site ul{list-style:none;padding:0;margin:0}footer.site li{margin:5px 0}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
@media (max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.fgrid{grid-template-columns:1fr}}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:16px;font-size:13px;color:#93a6b8}
.mobile-call{display:none}
@media (max-width:700px){.mobile-call{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;box-shadow:0 -4px 14px rgba(0,0,0,.15)}
 .mobile-call a{flex:1;text-align:center;padding:14px 6px;font-weight:800;text-decoration:none;color:#fff;background:var(--navy)}
 .mobile-call a.q{background:var(--accent)} body{padding-bottom:52px}}
.areas{display:flex;flex-wrap:wrap;gap:8px;padding:0;list-style:none}
.areas li{background:#fff;border:1px solid var(--line);border-radius:30px;padding:6px 14px;font-weight:600}
.logo>span:last-child{white-space:nowrap}
@media (max-width:520px){
 .topbar .wrap>span:first-child{display:none}.topbar .wrap{justify-content:center}
 .logo small{display:none}.logo{font-size:18px}
 .nav-cta .btn-dark{padding:8px 10px;font-size:13px}
 .mobile-call a{font-size:15px;white-space:nowrap}
 .hero .btns .btn{flex:1 1 100%}
}