/* Drivetrova Auto Parts
   Palette: gunmetal shop floor, manila parts tag, safety-yellow marking, block-enamel blue. */
:root{
  --gunmetal:#24313B;
  --gunmetal-2:#2E3E4A;
  --manila:#EFE3C6;
  --manila-edge:#D9C79E;
  --ink:#1A2026;
  --safety:#F2B705;
  --enamel:#2F5D8A;
  --steel:#C9D2D9;
  --paper:#F7F8F9;
  --muted:#5B6873;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --wrap:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--body);font-size:1.0625rem;line-height:1.6;color:var(--ink);background:var(--paper)}
img,svg{display:block;max-width:100%}
a{color:var(--enamel)}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--safety);outline-offset:2px}
h1,h2,h3{font-family:var(--display);line-height:1.05;margin:0 0 .5em;letter-spacing:.005em}
h2{font-size:clamp(2rem,4vw,2.75rem);font-weight:700}
h3{font-size:1.45rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:0;background:var(--safety);color:var(--ink);padding:8px 14px;z-index:10}
.skip:focus{left:8px;top:8px}

/* Header */
.site-header{background:var(--gunmetal);color:#fff;border-bottom:6px solid var(--safety)}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:var(--display);font-weight:800;font-size:1.6rem;line-height:1}
.brand:hover{color:#fff}
.brand-mark{width:34px;height:34px;color:var(--safety)}
.brand-sub{display:block;font-weight:600;font-size:.8rem;letter-spacing:.04em;color:var(--steel);margin-top:2px}
nav{display:flex;align-items:center;gap:22px}
nav a{color:#fff;text-decoration:none;font-weight:600;font-size:.98rem}
nav a:hover{color:var(--safety)}
.nav-cta{background:var(--safety);color:var(--ink)!important;padding:8px 14px;border-radius:4px}
.nav-cta:hover{background:#fff}
@media (max-width:760px){nav a:not(.nav-cta){display:none}}

/* Hero */
.hero{background:var(--gunmetal);color:#fff;padding:56px 0 72px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  repeating-linear-gradient(135deg,transparent 0 22px,rgba(255,255,255,.025) 22px 44px);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
@media (min-width:980px){.hero-grid{grid-template-columns:1fr 520px;gap:56px}.hero{padding:80px 0 96px}}
.hero h1{font-size:clamp(2.6rem,6.2vw,4.4rem);font-weight:800;max-width:14ch;margin-bottom:.35em}
.lede{font-size:1.2rem;color:#E3E9ED;max-width:34em}
.hero-points{list-style:none;padding:0;margin:28px 0;display:grid;gap:12px}
.hero-points li{padding-left:30px;position:relative;color:#fff}
.hero-points li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:10px;border-left:3px solid var(--safety);border-bottom:3px solid var(--safety);transform:rotate(-45deg)}
.hero-mail{color:var(--steel);font-size:.98rem}
.hero-mail a{color:#fff}

/* The parts tag form: the one bold element */
.tag{position:relative;background:var(--manila);color:var(--ink);padding:40px 28px 28px;border-radius:6px 6px 6px 6px;
  box-shadow:0 2px 0 var(--manila-edge),0 24px 48px -18px rgba(0,0,0,.55);
  clip-path:polygon(0 34px,34px 0,calc(100% - 34px) 0,100% 34px,100% 100%,0 100%)}
@media (min-width:980px){.tag{transform:rotate(1.2deg);margin-top:8px}}
.tag-hole{position:absolute;top:18px;left:50%;width:22px;height:22px;margin-left:-11px;border-radius:50%;background:var(--gunmetal);box-shadow:inset 0 0 0 4px var(--manila-edge)}
.tag-title{font-size:2.1rem;font-weight:800;margin:14px 0 2px}
.tag-sub{color:#5a4f37;margin-bottom:18px}
fieldset{border:0;border-top:2px dashed var(--manila-edge);margin:0 0 6px;padding:14px 0 0}
legend{font-family:var(--display);font-weight:700;font-size:1.15rem;padding:0 8px 0 0;color:var(--ink)}
label{display:block;font-weight:600;font-size:.95rem;margin-bottom:12px}
.opt{font-weight:400;color:#6f6347;font-size:.85rem}
input,select,textarea{display:block;width:100%;margin-top:4px;font:inherit;font-weight:400;font-size:1rem;color:var(--ink);
  background:#FFFDF7;border:1.5px solid #BFAE86;border-radius:4px;padding:10px 11px;min-height:44px}
textarea{resize:vertical;min-height:64px}
input:focus,select:focus,textarea:focus{border-color:var(--ink);outline:3px solid var(--safety);outline-offset:0}
input[aria-invalid="true"],select[aria-invalid="true"]{border-color:#B3261E;background:#FFF4F2}
.row{display:grid;gap:0 12px}
@media (min-width:520px){.row.two{grid-template-columns:1fr 1fr}.row.three{grid-template-columns:.8fr 1.1fr 1.1fr}}
.hp{position:absolute;left:-5000px;width:1px;height:1px;overflow:hidden}
.btn{display:inline-block;width:100%;font-family:var(--display);font-weight:800;font-size:1.35rem;letter-spacing:.01em;
  background:var(--ink);color:var(--safety);border:0;border-radius:4px;padding:14px 20px;cursor:pointer;text-align:center;text-decoration:none;margin-top:6px}
.btn:hover{background:#000;color:#fff}
.btn[disabled]{opacity:.7;cursor:wait}
.fine{font-size:.85rem;color:#6f6347;margin:12px 0 0}
.fine a{color:var(--ink)}
.form-msg{background:#FFF4F2;border-left:5px solid #B3261E;color:#5F1410;padding:10px 12px;margin-bottom:14px;border-radius:2px}

/* Steps: a real sequence, so numbered */
.band{padding:72px 0}
#how{background:var(--paper)}
.steps{list-style:none;counter-reset:s;padding:0;margin:28px 0 0;display:grid;gap:28px}
@media (min-width:760px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{counter-increment:s;border-top:4px solid var(--gunmetal);padding-top:16px}
.steps li::before{content:counter(s);display:block;font-family:var(--display);font-weight:800;font-size:3rem;line-height:1;color:var(--enamel);margin-bottom:8px}
.steps p{color:var(--muted);margin:0}

/* Parts */
.parts{background:#fff;padding:72px 0;border-top:1px solid #E3E7EA;border-bottom:1px solid #E3E7EA}
.parts-grid{display:grid;gap:32px}
@media (min-width:900px){.parts-grid{grid-template-columns:5fr 7fr;gap:64px}}
.parts-grid > div > p{color:var(--muted);max-width:36em}
.part-list{margin:0;display:grid;gap:0}
.part-list > div{display:grid;gap:4px;padding:18px 0;border-bottom:1px solid #E3E7EA}
.part-list > div:first-child{padding-top:0}
@media (min-width:600px){.part-list > div{grid-template-columns:220px 1fr;gap:20px}}
.part-list dt{font-family:var(--display);font-weight:700;font-size:1.35rem;line-height:1.2}
.part-list dd{margin:0;color:var(--muted)}

/* Ready checklist */
.ready{background:var(--steel)}
.ready-grid{display:grid;gap:24px}
@media (min-width:900px){.ready-grid{grid-template-columns:5fr 7fr;gap:64px;align-items:start}}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.checklist li{background:#fff;padding:14px 16px 14px 48px;position:relative;border-radius:4px}
.checklist li::before{content:"";position:absolute;left:16px;top:17px;width:18px;height:18px;border:2.5px solid var(--gunmetal);border-radius:3px}

/* FAQ */
.faq{padding:72px 0}
details{border-bottom:1px solid #DCE1E5}
summary{cursor:pointer;list-style:none;font-weight:700;font-size:1.12rem;padding:18px 36px 18px 0;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:12px;font-family:var(--display);font-size:1.8rem;color:var(--enamel)}
details[open] summary::after{content:"–"}
details p{color:var(--muted);margin:0 0 18px;max-width:40em}

/* Closing + footer */
.closing{background:var(--safety);padding:36px 0}
.closing-row{display:flex;flex-wrap:wrap;gap:16px 32px;align-items:center;justify-content:space-between}
.closing p{font-family:var(--display);font-weight:700;font-size:clamp(1.5rem,3vw,2rem);margin:0;line-height:1.15}
.btn-dark{width:auto;padding:12px 26px}
.site-footer{background:var(--gunmetal);color:var(--steel);padding:40px 0;font-size:.95rem}
.site-footer a{color:#fff}
.footer-row{display:grid;gap:12px}
@media (min-width:760px){.footer-row{grid-template-columns:2fr 2fr 1fr;align-items:start}}
.site-footer strong{color:#fff}
.copy{color:#8E9BA5}

/* Simple pages */
.page{padding:56px 0 72px}
.page h1{font-size:clamp(2.4rem,5vw,3.4rem);font-weight:800}
.page h2{font-size:1.7rem;margin-top:1.6em}
.page p,.page li{max-width:42em}
.notice{background:#fff;border-left:6px solid var(--safety);padding:20px 22px;border-radius:2px}