/* TDC Automotive & Light Duty Diesel — tdcauto.com */
:root{
  --bg:#07090c;
  --bg2:#0c1116;
  --panel:#10161d;
  --panel2:#141c24;
  --line:#1e2933;
  --teal:#3fd0e0;
  --teal-bright:#7deefb;
  --teal-dim:#1a7f8e;
  --text:#c3ced7;
  --text-dim:#8fa0ac;
  --head:#eef4f8;
  --chrome-a:#f4f7f9;
  --chrome-b:#9fb0bb;
  --chrome-c:#5d6d78;
  --max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:1.0625rem;
  line-height:1.7;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none}
a:hover,a:focus{color:var(--teal-bright);text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.25rem}
.skip{position:absolute;left:-9999px;top:0;background:var(--teal);color:#04252b;padding:.6rem 1rem;z-index:100;font-weight:700}
.skip:focus{left:0}

/* ---------- Headings: chrome effect ---------- */
h1,h2,h3,h4{
  color:var(--head);
  font-weight:800;
  line-height:1.2;
  letter-spacing:.02em;
  text-transform:uppercase;
}
h1{font-size:clamp(1.7rem,4.2vw,2.7rem);margin-bottom:1rem}
h2{font-size:clamp(1.3rem,3vw,1.8rem);margin:2.6rem 0 1rem}
h3{font-size:1.15rem;margin:1.8rem 0 .7rem}
.chrome{
  background:linear-gradient(180deg,var(--chrome-a) 0%,var(--chrome-a) 38%,var(--chrome-b) 52%,var(--chrome-c) 62%,var(--chrome-b) 78%,var(--chrome-a) 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.tagline-rule{
  display:flex;align-items:center;gap:.9rem;margin:.4rem 0 1.4rem;
  color:var(--teal);font-weight:600;letter-spacing:.35em;text-transform:uppercase;font-size:.8rem;
}
.tagline-rule::before,.tagline-rule::after{
  content:"";flex:1;height:1px;max-width:110px;
  background:linear-gradient(90deg,transparent,var(--teal));
}
.tagline-rule::after{background:linear-gradient(90deg,var(--teal),transparent)}
p{margin-bottom:1.1rem}
ul,ol{margin:0 0 1.2rem 1.4rem}
li{margin-bottom:.45rem}
strong{color:var(--head)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,9,12,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-in{display:flex;align-items:center;gap:1rem;padding:.55rem 1.25rem;max-width:var(--max);margin:0 auto}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.brand:hover{text-decoration:none}
.brand img{width:54px;height:46px;object-fit:cover;border-radius:6px}
.brand-name{font-weight:800;letter-spacing:.04em;color:var(--head);font-size:1.02rem;line-height:1.15;text-transform:uppercase}
.brand-name small{display:block;color:var(--teal);font-size:.62rem;letter-spacing:.3em;font-weight:600}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--head);padding:.45rem .7rem;border-radius:6px;font-size:1.15rem;cursor:pointer}
nav.main{margin-left:auto}
nav.main ul{display:flex;gap:1.15rem;list-style:none;margin:0;align-items:center}
nav.main a{color:var(--text);font-weight:600;font-size:.92rem;letter-spacing:.03em;text-transform:uppercase}
nav.main a:hover{color:var(--teal-bright);text-decoration:none}
nav.main a[aria-current="page"]{color:var(--teal)}
.btn-call{
  display:inline-block;
  background:linear-gradient(180deg,var(--teal-bright),var(--teal) 45%,var(--teal-dim));
  color:#04252b !important;
  font-weight:800;letter-spacing:.04em;
  padding:.6rem 1.15rem;border-radius:8px;
  box-shadow:0 0 18px rgba(63,208,224,.35);
  text-transform:uppercase;font-size:.92rem;white-space:nowrap;
}
.btn-call:hover{box-shadow:0 0 26px rgba(63,208,224,.6);text-decoration:none;color:#04252b}
.btn-ghost{
  display:inline-block;border:1px solid var(--teal);color:var(--teal);
  padding:.6rem 1.15rem;border-radius:8px;font-weight:700;letter-spacing:.04em;
  text-transform:uppercase;font-size:.92rem;white-space:nowrap;
}
.btn-ghost:hover{background:rgba(63,208,224,.08);text-decoration:none}

@media(max-width:900px){
  .nav-toggle{display:block}
  nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);margin:0}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;align-items:stretch;gap:0;padding:.5rem 0}
  nav.main li{margin:0}
  nav.main a{display:block;padding:.8rem 1.4rem}
  .header-call{display:none}
}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%,rgba(63,208,224,.14),transparent 60%),
    linear-gradient(180deg,var(--bg2),var(--bg));
  border-bottom:1px solid var(--line);
  padding:3.4rem 0 3rem;
  text-align:center;
}
.hero .lede{max-width:46rem;margin:0 auto 1.6rem;font-size:1.15rem;color:var(--text)}
.hero-ctas{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}
.hero-ctas .btn-call{font-size:1.05rem;padding:.85rem 1.6rem}
.hero-ctas .btn-ghost{font-size:1.05rem;padding:.85rem 1.6rem}
.hero-logo{width:min(300px,62vw);margin:0 auto 1.4rem;border-radius:12px}
.trust-row{display:flex;gap:1.6rem;justify-content:center;flex-wrap:wrap;margin-top:1.8rem;color:var(--text-dim);font-size:.9rem;letter-spacing:.05em;text-transform:uppercase;font-weight:600}
.trust-row span::before{content:"✓ ";color:var(--teal)}

/* ---------- Breadcrumbs ---------- */
.crumbs{padding:.8rem 0;font-size:.85rem;color:var(--text-dim)}
.crumbs ol{list-style:none;margin:0;display:flex;flex-wrap:wrap;gap:.35rem}
.crumbs li+li::before{content:"›";margin-right:.35rem;color:var(--chrome-c)}
.crumbs a{color:var(--text-dim)}
.crumbs a:hover{color:var(--teal)}
.crumbs [aria-current]{color:var(--teal)}

/* ---------- Layout blocks ---------- */
main{padding-bottom:3rem}
.section{margin-top:2.5rem}
.grid{display:grid;gap:1.1rem}
.grid.c2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid.c3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.grid.c4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card{
  background:linear-gradient(180deg,var(--panel2),var(--panel));
  border:1px solid var(--line);border-radius:10px;
  padding:1.3rem 1.3rem 1.1rem;
  position:relative;
}
.card h3{margin-top:0;font-size:1.02rem}
.card h3 a{color:var(--head)}
.card h3 a:hover{color:var(--teal-bright);text-decoration:none}
.card p{font-size:.95rem;color:var(--text-dim);margin-bottom:.6rem}
.card .more{font-size:.85rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.card::before{
  content:"";position:absolute;top:0;left:1.3rem;right:60%;height:2px;
  background:linear-gradient(90deg,var(--teal),transparent);
  border-radius:2px;
}
.chip-list{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;margin:0 0 1.2rem}
.chip-list li{margin:0}
.chip-list a{
  display:inline-block;background:var(--panel);border:1px solid var(--line);
  padding:.4rem .85rem;border-radius:999px;font-size:.88rem;color:var(--text);
}
.chip-list a:hover{border-color:var(--teal);color:var(--teal-bright);text-decoration:none}

/* ---------- Process steps ---------- */
.steps{list-style:none;margin:0;counter-reset:step}
.steps li{
  counter-increment:step;margin-bottom:1rem;padding:1rem 1.2rem 1rem 3.4rem;position:relative;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
}
.steps li::before{
  content:counter(step);
  position:absolute;left:1rem;top:1rem;
  width:1.7rem;height:1.7rem;border-radius:50%;
  background:linear-gradient(180deg,var(--teal-bright),var(--teal-dim));
  color:#04252b;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:.95rem;
}
.steps strong{display:block;margin-bottom:.15rem;text-transform:uppercase;letter-spacing:.04em;font-size:.95rem}
.steps p{margin:0;font-size:.95rem;color:var(--text-dim)}

/* ---------- Checklist ---------- */
.checklist{list-style:none;margin:0 0 1.4rem}
.checklist li{padding-left:1.7rem;position:relative;margin-bottom:.55rem}
.checklist li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:800}

/* ---------- FAQ ---------- */
.faq details{border:1px solid var(--line);border-radius:10px;margin-bottom:.7rem;background:var(--panel)}
.faq summary{
  cursor:pointer;padding:1rem 1.2rem;font-weight:700;color:var(--head);
  list-style:none;position:relative;padding-right:2.6rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:1.2rem;top:.85rem;color:var(--teal);font-size:1.3rem;font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 1.2rem 1.1rem;color:var(--text-dim);font-size:.98rem}
.faq .a p{margin-bottom:.6rem}

/* ---------- CTA band ---------- */
.cta-band{
  margin:3rem 0 0;padding:2.6rem 0;text-align:center;
  background:
    radial-gradient(ellipse 70% 100% at 50% 100%,rgba(63,208,224,.13),transparent 65%),
    linear-gradient(180deg,var(--bg),var(--bg2));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band h2{margin:0 0 .5rem}
.cta-band p{max-width:38rem;margin:0 auto 1.4rem;color:var(--text-dim)}
.cta-band .phone-big{font-size:clamp(1.6rem,5vw,2.4rem);font-weight:800;letter-spacing:.03em;display:inline-block;margin-bottom:1rem}

/* ---------- Info boxes ---------- */
.note{
  border-left:3px solid var(--teal);background:var(--panel);
  padding:1rem 1.2rem;border-radius:0 10px 10px 0;margin:1.4rem 0;font-size:.98rem;
}
.pricing-table{width:100%;border-collapse:collapse;margin:1rem 0 1.5rem}
.pricing-table th,.pricing-table td{border:1px solid var(--line);padding:.8rem 1rem;text-align:left}
.pricing-table th{background:var(--panel2);color:var(--head);text-transform:uppercase;letter-spacing:.05em;font-size:.85rem}
.pricing-table td{background:var(--panel)}
.price{color:var(--teal-bright);font-weight:800;font-size:1.15rem}

/* ---------- About / media ---------- */
.media-split{display:grid;gap:2rem;grid-template-columns:1fr;align-items:start}
@media(min-width:760px){.media-split{grid-template-columns:5fr 4fr}}
.media-split img{border-radius:12px;border:1px solid var(--line)}
figure figcaption{font-size:.85rem;color:var(--text-dim);margin-top:.5rem;text-align:center}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg2);border-top:1px solid var(--line);padding:2.6rem 0 5.5rem;font-size:.92rem}
.footer-grid{display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.site-footer h4{font-size:.85rem;letter-spacing:.12em;color:var(--teal);margin-bottom:.8rem}
.site-footer ul{list-style:none;margin:0}
.site-footer li{margin-bottom:.45rem}
.site-footer a{color:var(--text)}
.site-footer a:hover{color:var(--teal-bright)}
.footer-nap{color:var(--text-dim)}
.footer-nap strong{display:block;color:var(--head);margin-bottom:.3rem}
.footer-bottom{margin-top:2.2rem;padding-top:1.2rem;border-top:1px solid var(--line);color:var(--text-dim);font-size:.82rem;display:flex;flex-wrap:wrap;gap:.8rem;justify-content:space-between}

/* ---------- Mobile call bar ---------- */
.call-bar{
  position:fixed;bottom:0;left:0;right:0;z-index:60;
  display:none;padding:.65rem .9rem;
  background:rgba(7,9,12,.96);border-top:1px solid var(--teal-dim);
  backdrop-filter:blur(8px);
}
.call-bar a{display:block;text-align:center;font-size:1.05rem}
@media(max-width:760px){.call-bar{display:block}}

/* ---------- Map embed ---------- */
.map-embed{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:1.4rem 0}
.map-embed iframe{display:block;width:100%;height:380px;border:0}

@media print{
  .site-header,.call-bar,.cta-band,.site-footer{display:none}
  body{background:#fff;color:#000}
}