:root{--navy:#0b1b2b;--ink:#33475b;--muted:#5b6f82;--blue:#0f6fbf;--blue-d:#0a5594;--sky:#e8f3fc;--soft:#f3f6f9;--line:#dde5ec;--white:#fff;--accent:#f5b83d;--r:16px;--sh:0 10px 30px rgba(11,27,43,.08)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font:17px/1.7 Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}a:hover{color:var(--blue-d)}
h1,h2,h3,h4,.logo{font-family:"Plus Jakarta Sans",Inter,system-ui,sans-serif;color:var(--navy);letter-spacing:-.02em}
h1{font-size:clamp(34px,5.4vw,58px);line-height:1.08;margin:0 0 18px;font-weight:800}
h2{font-size:clamp(28px,3.6vw,42px);line-height:1.15;margin:0 0 14px;font-weight:800}
h3{font-size:21px;line-height:1.3;margin:0 0 8px;font-weight:700}
h4{font-size:15px;margin:0 0 12px;text-transform:uppercase;letter-spacing:.08em}
p{margin:0 0 16px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.narrow{max-width:800px}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ic.sm{width:16px;height:16px}
.eyebrow{display:inline-block;font:700 13px/1 "Plus Jakarta Sans",sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.lede{font-size:19px;color:var(--ink);max-width:640px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;font:700 16px/1 "Plus Jakarta Sans",sans-serif;text-decoration:none;transition:.15s;border:2px solid transparent}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-d);color:#fff}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--navy)}.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy)}.btn-light:hover{background:var(--sky);color:var(--navy)}
.cta-phone{display:none!important}/* PHONE_CTA: shown only after LeadSmart approves a tracking number */
/* top bar + header */
.topbar{background:var(--navy);color:#cfe1f1;font-size:14px}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar span{display:inline-flex;align-items:center;gap:8px}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:18px;font-weight:800;line-height:1.05}
.logo b{display:block;color:var(--blue)}
.logo>span:last-child{display:flex;flex-direction:column}
.mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#1584d6,#0a4f8a);color:#fff;display:grid;place-items:center}
.mark .ic{width:22px;height:22px;fill:rgba(255,255,255,.25)}
nav.main{display:flex;align-items:center;gap:6px}
nav.main>a,nav.main .dd>button{font:600 15px "Plus Jakarta Sans",sans-serif;color:var(--navy);text-decoration:none;padding:10px 12px;border-radius:10px;background:none;border:0;cursor:pointer;display:inline-flex;align-items:center;gap:4px}
nav.main>a:hover,nav.main .dd>button:hover{background:var(--soft)}
.dd{position:relative}
.dd .menu{display:none;position:absolute;top:100%;left:0;min-width:270px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh);padding:8px}
.dd:hover .menu,.dd:focus-within .menu{display:block}
.dd .menu a{display:block;padding:9px 12px;border-radius:8px;text-decoration:none;color:var(--navy);font-size:15px}
.dd .menu a:hover{background:var(--sky)}
.hdr-cta{margin-left:8px;padding:12px 18px;font-size:15px}
.menu-toggle{display:none}
@media(max-width:960px){
 nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 20px 18px;box-shadow:var(--sh)}
 nav.main.open{display:flex}
 .dd .menu{position:static;display:block;box-shadow:none;border:0;padding:0 0 0 12px;min-width:0}
 .dd>button{width:100%}
 .hdr-cta{margin:8px 0 0;justify-content:center}
 .menu-toggle{display:inline-flex;align-items:center;gap:8px;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:10px 14px;font:700 15px "Plus Jakarta Sans",sans-serif;color:var(--navy);cursor:pointer}
}
/* hero */
.hero{background:linear-gradient(180deg,#eef6fd 0%,#fff 100%);padding:56px 0 64px;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-media{position:relative}
.hero-media img{border-radius:24px;box-shadow:0 24px 60px rgba(11,27,43,.18);aspect-ratio:5/4;object-fit:cover;width:100%}
.float-card{position:absolute;left:-24px;bottom:-22px;background:#fff;border-radius:16px;box-shadow:var(--sh);padding:16px 18px;max-width:280px;border:1px solid var(--line)}
.float-card strong{display:block;font:800 15px "Plus Jakarta Sans",sans-serif;color:var(--navy)}
.float-card span{font-size:14px;color:var(--muted)}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 18px}
.ticks{display:flex;gap:8px 20px;flex-wrap:wrap;list-style:none;padding:0;margin:0;font-size:15px;color:var(--navy);font-weight:600}
.ticks li{display:inline-flex;align-items:center;gap:6px}
.ticks .ic{color:var(--blue);width:18px;height:18px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--blue)}
.crumbs span{margin:0 6px}
@media(max-width:900px){.hero{padding:34px 0 46px}.hero .grid{grid-template-columns:1fr;gap:34px}.float-card{left:12px;bottom:-18px}}
/* answer box (AEO) */
.answer{background:#fff;border:1px solid var(--line);border-left:5px solid var(--blue);border-radius:14px;padding:20px 22px;margin:0 0 8px;box-shadow:var(--sh)}
.answer .lbl{font:800 12px "Plus Jakarta Sans",sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);display:block;margin-bottom:6px}
.answer p{margin:0;font-size:18px;color:var(--navy)}
/* sections */
section.sec{padding:80px 0}
section.alt{background:var(--soft)}
section.dark{background:var(--navy);color:#c9d8e6}
section.dark h2,section.dark h3{color:#fff}
section.dark .eyebrow{color:#7cc0f5}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head p{font-size:18px}
@media(max-width:700px){section.sec{padding:56px 0}}
/* problem picker */
.pick{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-40px;position:relative;z-index:2}
.pick a{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;text-decoration:none;color:var(--ink);box-shadow:var(--sh);transition:.15s}
.pick a:hover{transform:translateY(-3px);border-color:var(--blue)}
.pick .ic{width:30px;height:30px;color:var(--blue);background:var(--sky);padding:6px;border-radius:10px;box-sizing:content-box}
.pick strong{font:800 17px "Plus Jakarta Sans",sans-serif;color:var(--navy)}
.pick span{font-size:15px}
@media(max-width:900px){.pick{grid-template-columns:1fr 1fr;margin-top:24px}}
@media(max-width:520px){.pick{grid-template-columns:1fr}}
/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.15s}
.card:hover{box-shadow:var(--sh)}
.card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card .tag{font:800 12px "Plus Jakarta Sans",sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:6px}
.card p{font-size:16px}
.card .more{margin-top:auto;font:700 15px "Plus Jakarta Sans",sans-serif;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.card .more .ic{width:18px;height:18px}
@media(max-width:900px){.cards,.cards.two{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.cards,.cards.two{grid-template-columns:1fr}}
/* icon tiles */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
section.dark .tile{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}
.tile .ic{width:28px;height:28px;color:var(--blue);margin-bottom:14px}
section.dark .tile .ic{color:#7cc0f5}
.tile p{font-size:15.5px;margin:0}
@media(max-width:900px){.tiles{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.tiles{grid-template-columns:1fr}}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:s}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px 24px}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:-18px;left:24px;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font:800 18px/40px "Plus Jakarta Sans",sans-serif;text-align:center}
.step p{font-size:16px;margin:0}
@media(max-width:820px){.steps{grid-template-columns:1fr;gap:34px}}
/* numbered list */
ol.num{list-style:none;padding:0;margin:0;counter-reset:n;display:grid;gap:14px}
ol.num li{position:relative;padding:18px 20px 18px 66px;background:#fff;border:1px solid var(--line);border-radius:14px}
ol.num li:before{counter-increment:n;content:counter(n);position:absolute;left:18px;top:16px;width:34px;height:34px;border-radius:10px;background:var(--sky);color:var(--blue);font:800 16px/34px "Plus Jakarta Sans",sans-serif;text-align:center}
ol.num strong{color:var(--navy)}
/* checklist */
ul.check{list-style:none;padding:0;margin:0 0 16px;display:grid;gap:12px}
ul.check li{position:relative;padding-left:34px}
ul.check li:before{content:"";position:absolute;left:0;top:4px;width:22px;height:22px;border-radius:50%;background:var(--sky) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f6fbf' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/13px no-repeat}
ul.check strong{color:var(--navy)}
/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.top{align-items:start}
.split img{border-radius:20px;aspect-ratio:4/3;object-fit:cover;width:100%;box-shadow:var(--sh)}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:30px}}
.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--sh)}
/* category cards */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat{border-radius:var(--r);padding:24px;border:1px solid var(--line);background:#fff;border-top:6px solid}
.cat.c1{border-top-color:#3aa0e8}.cat.c2{border-top-color:#8a9aaa}.cat.c3{border-top-color:#1f2a36}
.cat .lvl{font:800 13px "Plus Jakarta Sans",sans-serif;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.cat p{font-size:15.5px;margin:0 0 10px}
@media(max-width:820px){.cats{grid-template-columns:1fr}}
/* chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:20px 0}
.chips li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:15px;font-weight:600;color:var(--navy)}
/* prose */
.prose h2{margin-top:48px}.prose h3{margin-top:30px}
.prose ul:not(.check),.prose ol:not(.num){padding-left:22px}.prose li{margin:6px 0}
.tablewrap{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;font-size:16px;background:#fff}
th,td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:var(--soft);color:var(--navy);font-family:"Plus Jakarta Sans",sans-serif}
tr:last-child td{border-bottom:0}
.note{background:var(--sky);border-radius:14px;padding:16px 20px;margin:22px 0;font-size:16px}
.note strong{color:var(--navy)}
/* faq */
.faq{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px}
.faq summary{list-style:none;cursor:pointer;padding:18px 30px 18px 0;font:700 17px "Plus Jakarta Sans",sans-serif;color:var(--navy);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:14px;font-size:24px;color:var(--blue)}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 18px}
/* cta band */
.band{background:linear-gradient(120deg,#0f6fbf,#0a3f6e);color:#e4f1fc;border-radius:24px;padding:48px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.band h2{color:#fff;margin:0 0 8px}.band p{margin:0;max-width:620px}
@media(max-width:620px){.band{padding:32px 24px}}
/* related */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related a{display:block;padding:18px 20px;border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--navy);font:700 16px "Plus Jakarta Sans",sans-serif;background:#fff}
.related a:hover{border-color:var(--blue)}
.related small{display:block;font:400 14px Inter,sans-serif;color:var(--muted);margin-top:4px}
@media(max-width:820px){.related{grid-template-columns:1fr}}
/* footer */
footer.site{background:var(--navy);color:#a9bccd;font-size:15px;padding:64px 0 30px}
footer.site a{color:#dbe8f3;text-decoration:none}footer.site a:hover{color:#fff}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.fgrid h4{color:#fff}
.fgrid nav a{display:block;padding:4px 0}
.logo.light{color:#fff}.logo.light b{color:#7cc0f5}
.fine{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:24px;font-size:13.5px;line-height:1.65}
@media(max-width:900px){.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.fgrid{grid-template-columns:1fr}}
.small{font-size:14px;color:var(--muted)}
.center{text-align:center}
.related.four{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.related.four{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.related.four{grid-template-columns:1fr}}
.topbar span:last-child{white-space:nowrap}
@media(max-width:560px){.topbar span:last-child{display:none}}
/* layout with sidebar */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:56px;align-items:start}
.layout>.main{min-width:0}
aside.side{position:sticky;top:100px;display:grid;gap:18px}
.side .box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 22px 18px;box-shadow:var(--sh)}
.side h4{color:var(--navy);margin-bottom:10px}
.toc a{display:block;padding:7px 0 7px 14px;border-left:2px solid var(--line);text-decoration:none;color:var(--ink);font-size:15px;line-height:1.4}
.toc a:hover{border-color:var(--blue);color:var(--blue)}
.helpbox{background:linear-gradient(135deg,#0f6fbf,#0a3f6e)!important;color:#e4f1fc;border:0!important}
.helpbox h4{color:#fff}.helpbox p{font-size:15px;margin:0 0 14px}
.helpbox .btn{width:100%;justify-content:center;padding:12px 16px;font-size:15px}
.side .links a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--navy);font-weight:600;font-size:15px}
.side .links a:last-child{border-bottom:0}
.side .links .ic{width:16px;height:16px;color:var(--blue)}
.prose h2[id],section[id]{scroll-margin-top:100px}
@media(max-width:1000px){.layout{grid-template-columns:1fr;gap:36px}aside.side{position:static}}
.layout .prose>h2:first-child{margin-top:0}