/* D&S Catalytic Converter Rebuilds — site styles
   Navy-forward, white, restrained red accent. Deployable static site. */
:root{
  --navy:#0A3161; --navy-bright:#0057B7; --red:#C8102E;
  --ink:#1e293b; --body:#4a5568; --muted:#64748b; --light:#7a8aa0;
  --line:#e6eaf0; --line2:#eef2f7; --field:#cbd5e1;
  --tint:#f7f9fc; --tint2:#eef2f7; --white:#fff; --radius:8px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:#fff;line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--navy-bright);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{color:var(--navy);font-weight:600;line-height:1.2;margin:0 0 .4em}
h1{font-size:32px}h2{font-size:23px}h3{font-size:18px}
p{margin:0 0 1em;color:var(--body)}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* header / nav */
.site-header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:16px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;color:var(--navy);text-decoration:none}
.brand:hover{text-decoration:none}
.brand-badge{width:46px;height:46px;border-radius:9px;background:var(--navy);color:#fff;display:flex;
  align-items:center;justify-content:center;font-weight:600;font-size:17px;letter-spacing:-1px;flex:none}
.brand-name{display:flex;flex-direction:column;font-weight:600;font-size:16px;line-height:1.15}
.brand-name small{font-weight:400;font-size:11px;color:var(--light)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.main-nav a{color:var(--navy);font-size:14.5px;font-weight:500;padding:8px 11px;border-radius:6px}
.main-nav a:hover{background:var(--tint2);text-decoration:none}
.top-accent{height:3px;background:var(--line)}
.top-accent i{display:block;height:3px;width:64px;background:var(--red)}

/* buttons */
.btn{display:inline-block;padding:11px 22px;border-radius:var(--radius);font-size:15px;font-weight:500;
  cursor:pointer;text-decoration:none;border:1px solid transparent;transition:.12s}
.btn:hover{text-decoration:none;opacity:.94}
.btn-primary{background:var(--navy);color:#fff}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--field)}
.btn-onnavy{background:#fff;color:var(--navy)}
.btn-outnavy{background:transparent;color:#fff;border-color:#4a6a92}
.btn-sm{padding:8px 15px;font-size:14px}

/* sections */
.sec{padding:48px 0}
.sec-tint{background:var(--tint)}
.sec-navy{background:var(--navy);color:#fff}
.sec-navy h1,.sec-navy h2{color:#fff}
.sec-navy p{color:#c9dbf0}
.center{text-align:center}
/* centered section heading block, but keep cards/steps/lists left-aligned */
.sec-c{text-align:center}
.sec-c .lead{margin-left:auto;margin-right:auto}
.sec-c .card,.sec-c .faq,.sec-c ul.ticks{text-align:left}
.sec-c .steps{margin-left:auto;margin-right:auto}
.sec-c>.wrap>p:not(.lead){max-width:640px;margin-left:auto;margin-right:auto}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--light);margin-bottom:8px}
.usa{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;color:var(--navy)}
.usa .star{color:var(--red)}
.sec-navy .usa{color:#c9dbf0}
.lead{font-size:18px;color:var(--body);max-width:620px}
.center .lead,.center.lead,.hero .lead{margin-left:auto;margin-right:auto;text-align:center}

/* hero */
.hero{padding:56px 0;background:var(--tint);text-align:center}
.hero h1{font-size:34px;max-width:720px;margin-left:auto;margin-right:auto}
.hero .cta{margin-top:22px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* trust bar */
.trust{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 30px;padding:18px 0;
  border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.trust .item{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#334155}
.trust .item .ti{font-size:19px;color:var(--navy)}
.trust .item .star{color:var(--red)}

/* cards + grid */
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g-auto{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin-bottom:4px}
.card .ti{font-size:24px;color:var(--navy)}
.card .ti.red{color:var(--red)}
.card p{font-size:14px;color:var(--muted);margin:0}
.card-link{display:block;transition:.12s}
.card-link:hover{border-color:var(--navy);text-decoration:none}
.card-link .more{color:var(--navy-bright);font-size:14px;font-weight:500;margin-top:8px;display:inline-block}
.rec{border:1.5px solid var(--navy)}
.badge{display:inline-block;background:var(--navy);color:#fff;font-size:12px;font-weight:500;
  padding:3px 11px;border-radius:6px;margin-bottom:8px}
ul.ticks{list-style:none;padding:0;margin:8px 0 0}
ul.ticks li{position:relative;padding:4px 0 4px 26px;font-size:15px;color:var(--body)}
ul.ticks li::before{content:"\2713";position:absolute;left:0;color:var(--navy);font-weight:600}

/* steps */
.steps{display:flex;flex-direction:column;gap:14px;max-width:640px}
.step{display:flex;gap:14px;align-items:flex-start}
.step .n{flex:none;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}
.step b{color:var(--navy)}
.step p{font-size:14.5px;color:var(--muted);margin:2px 0 0}

/* chips */
.chip{display:inline-block;padding:6px 14px;border-radius:8px;font-size:14px;font-weight:500;
  margin:5px 6px 0 0;background:var(--tint2);color:var(--navy)}

/* callout */
.callout{padding:14px 16px;background:var(--tint);border-left:3px solid var(--navy);
  border-radius:0 8px 8px 0;font-size:14.5px;color:#334155;margin:14px 0}
.callout .ti{color:var(--navy)}

/* faq */
.faq details{border-bottom:1px solid var(--line2);padding:13px 0}
.faq summary{font-weight:600;color:var(--navy);cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--light);font-weight:400}
.faq details[open] summary::after{content:"\2013"}
.faq details p{margin:8px 0 0;font-size:14.5px;color:var(--muted)}

/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.field{display:flex;flex-direction:column}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--navy);margin-bottom:5px}
.field input,.field select,.field textarea{padding:11px 13px;border:1px solid var(--field);
  border-radius:8px;font-size:15px;font-family:inherit;background:#fff;color:var(--ink);width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--navy);
  box-shadow:0 0 0 3px rgba(10,49,97,.12)}
.form-note{font-size:13px;color:var(--muted);margin-top:6px}

/* section headings block */
.sec-head{max-width:640px}
.sec .center.sec-head{margin:0 auto}

/* footer */
.site-footer{background:#0A2645;color:#c4d3e6;padding:40px 0 26px;margin-top:10px}
.site-footer a{color:#c4d3e6}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin:0 0 10px;letter-spacing:.02em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:6px 0;font-size:14px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.foot-badge{width:34px;height:34px;border-radius:7px;background:#fff;color:var(--navy);display:flex;
  align-items:center;justify-content:center;font-weight:600;font-size:13px;letter-spacing:-.5px;flex:none}
.foot-legal{border-top:1px solid #1c3a5c;margin-top:24px;padding-top:16px;font-size:12.5px;color:#8fa6c0}

@media(max-width:820px){
  .g3,.g2,.site-footer .cols{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .brand-name{display:none}
  h1{font-size:26px}.hero h1{font-size:27px}h2{font-size:20px}
  .main-nav{gap:0}.main-nav a{padding:7px 8px;font-size:13.5px}
  .sec{padding:36px 0}
}