/* ============================================================
   Aftermarket precision parts — shared stylesheet
   Light "parts schedule" theme. No dark backgrounds anywhere.
   ============================================================ */

:root{
  --paper:#F6F3EC;       /* warm light background */
  --paper-2:#FBF9F4;     /* cards / raised surfaces */
  --ink:#1A1D23;         /* primary text (gunmetal) */
  --steel:#61656E;       /* secondary text */
  --blued:#21405B;       /* links, headers (blued steel) */
  --blued-deep:#16293A;  /* hover / strong */
  --brass:#A8843E;       /* single accent */
  --brass-soft:#C9A84F;
  --line:#DED8CC;        /* hairlines */
  --line-2:#ECE7DA;
  --ok:#2E7D5B;          /* in stock */
  --warn:#B23A3A;        /* lead-time / out */
  --radius:6px;
  --maxw:1120px;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --display:"Space Grotesk","Inter",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--blued);text-decoration:none}
a:hover{color:var(--blued-deep);text-decoration:underline}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.15;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(2rem,4.4vw,3.2rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:-.01em}
h3{font-size:1.18rem}
p{margin:0 0 1rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.mono{font-family:var(--mono)}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--brass);margin:0 0 .9rem}
.lead{font-size:1.15rem;color:var(--steel);max-width:60ch}
.muted{color:var(--steel)}
.center{text-align:center}

/* ---------- Skip link / a11y ---------- */
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--blued);outline-offset:2px}

/* ---------- Header ---------- */
.site-head{position:sticky;top:0;z-index:100;background:rgba(246,243,236,.92);
  backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;
  font-size:1.16rem;color:var(--ink);letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand .mark{width:30px;height:30px;border:2px solid var(--blued);border-radius:50%;
  display:grid;place-items:center;font-family:var(--mono);font-size:.62rem;font-weight:700;
  color:var(--blued);letter-spacing:0}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);font-size:.95rem;font-weight:500}
.nav-links a:hover{color:var(--blued)}
.nav-cta{font-family:var(--mono);font-size:.82rem;border:1.5px solid var(--ink);
  padding:8px 14px;border-radius:var(--radius)}
.nav-cta:hover{background:var(--ink);color:var(--paper);text-decoration:none}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;color:var(--ink)}
.burger svg{width:26px;height:26px}

@media(max-width:820px){
  .nav-links{position:fixed;inset:66px 0 auto 0;background:var(--paper-2);flex-direction:column;
    align-items:flex-start;gap:0;padding:8px 22px 18px;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .28s ease;box-shadow:0 10px 30px rgba(0,0,0,.06)}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%;border-bottom:1px solid var(--line-2)}
  .nav-links a{display:block;padding:14px 0;width:100%}
  .nav-cta{border:0;padding:14px 0}
  .burger{display:inline-flex}
}

/* ---------- Hero ---------- */
.hero{padding:64px 0 28px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1 span{color:var(--blued)}
.hero .lead{margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.schematic{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;font-family:var(--mono);font-size:.82rem;color:var(--steel)}
.schematic .row{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line)}
.schematic .row:last-child{border-bottom:0}
.schematic .pn{color:var(--ink);font-weight:500}
.schematic .pr{color:var(--blued);font-weight:600}
.schematic .cap{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--brass)}
@media(max-width:820px){.hero-grid{grid-template-columns:1fr;gap:30px}.hero{padding:40px 0 24px}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.9rem;
  font-weight:500;padding:13px 20px;border-radius:var(--radius);border:1.5px solid transparent;cursor:pointer;
  transition:transform .12s ease,background .2s ease}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn svg{width:18px;height:18px}
.btn-wa{background:#25D366;color:#08361a;border-color:#1eb858}
.btn-wa:hover{background:#1eb858;color:#08361a}
.btn-mail{background:var(--blued);color:#fff}
.btn-mail:hover{background:var(--blued-deep);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-brass{background:var(--brass);color:#241a06}
.btn-brass:hover{background:var(--brass-soft);color:#241a06}

/* ---------- Sections ---------- */
section{padding:56px 0}
.section-head{max-width:64ch;margin-bottom:30px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Card grids ---------- */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:8px;transition:border-color .2s,box-shadow .2s,transform .12s}
.card:hover{border-color:var(--blued);box-shadow:0 8px 24px rgba(33,64,91,.08);transform:translateY(-2px)}
.card .kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brass)}
.card h3{margin:.1rem 0 .2rem}
.card p{margin:0;color:var(--steel);font-size:.95rem}
.card .more{margin-top:auto;padding-top:12px;font-family:var(--mono);font-size:.82rem;color:var(--blued);font-weight:500}
.card a.cardlink{position:absolute;inset:0}
.card.rel{position:relative}

/* brand cards */
.brandcard{display:flex;flex-direction:column;justify-content:space-between;min-height:190px;
  background:linear-gradient(180deg,var(--paper-2),#fff);}
.brandcard .stamp{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--steel)}

/* ---------- Value props ---------- */
.props{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prop .n{font-family:var(--mono);color:var(--brass);font-size:.8rem;letter-spacing:.1em}
.prop h3{margin:.4rem 0 .3rem;font-size:1.05rem}
.prop p{font-size:.93rem;color:var(--steel);margin:0}
@media(max-width:760px){.props{grid-template-columns:1fr;gap:18px}}

/* ---------- Parts schedule table ---------- */
.schedule{width:100%;border-collapse:collapse;font-size:.92rem;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.schedule caption{caption-side:top;text-align:left;font-family:var(--mono);font-size:.74rem;
  letter-spacing:.12em;text-transform:uppercase;color:var(--brass);margin-bottom:10px}
.schedule th,.schedule td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-2)}
.schedule thead th{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--steel);background:#F1ECE0;border-bottom:1px solid var(--line)}
.schedule tbody tr:last-child td{border-bottom:0}
.schedule tbody tr:hover{background:#F1ECE0}
.schedule .pn{font-family:var(--mono);color:var(--ink);white-space:nowrap}
.schedule .price{font-family:var(--mono);color:var(--blued);font-weight:600;white-space:nowrap}
.schedule a{font-weight:500}
.stock{font-family:var(--mono);font-size:.74rem;padding:3px 8px;border-radius:20px;white-space:nowrap}
.stock.in{background:rgba(46,125,91,.12);color:var(--ok)}
.stock.made{background:rgba(168,132,62,.14);color:#7a5e1e}
.table-scroll{overflow-x:auto}

/* ---------- Breadcrumb ---------- */
.crumbs{font-family:var(--mono);font-size:.78rem;color:var(--steel);padding:18px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.crumbs li::after{content:"/";margin-left:8px;color:var(--line)}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--steel)}
.crumbs a:hover{color:var(--blued)}

/* ---------- Product detail ---------- */
.product{display:grid;grid-template-columns:1fr 1fr;gap:46px;padding:30px 0 10px}
.product .visual{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  min-height:320px;display:grid;place-items:center;padding:30px}
.product .visual .diagram{font-family:var(--mono);color:var(--steel);text-align:center;font-size:.84rem}
.product .visual .diagram .big{font-size:3.2rem;color:var(--blued);display:block;margin-bottom:8px;letter-spacing:.04em}
.spec{font-family:var(--mono);font-size:.9rem;border-top:1px solid var(--line);margin-top:18px}
.spec div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line-2)}
.spec dt{color:var(--steel)}.spec dd{margin:0;color:var(--ink);text-align:right}
.pricebox{display:flex;align-items:baseline;gap:12px;margin:6px 0 4px}
.pricebox .amt{font-family:var(--mono);font-size:2rem;font-weight:600;color:var(--ink)}
.pricebox .vs{font-family:var(--mono);font-size:.95rem;color:var(--steel);text-decoration:line-through}
.fitment{background:#F1ECE0;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;
  font-size:.9rem;margin:18px 0}
.fitment strong{font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brass);display:block;margin-bottom:6px}
.order-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
@media(max-width:820px){.product{grid-template-columns:1fr;gap:26px}}

/* ---------- FAQ ---------- */
.faq{max-width:760px}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;font-family:var(--display);font-weight:600;font-size:1.05rem;padding:14px 0;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--brass);font-size:1.4rem}
.faq details[open] summary::after{content:"\2212"}
.faq details p{color:var(--steel);padding:0 0 14px}

/* ---------- Contact band ---------- */
.contact-band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.contact-band .inner{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.contact-card .line{display:flex;justify-content:space-between;gap:12px;font-family:var(--mono);
  font-size:.88rem;padding:10px 0;border-bottom:1px dashed var(--line)}
.contact-card .line:last-of-type{border-bottom:0}
@media(max-width:820px){.contact-band .inner{grid-template-columns:1fr;gap:24px}}

/* ---------- Region strip ---------- */
.regions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.regions span{font-family:var(--mono);font-size:.76rem;color:var(--steel);border:1px solid var(--line);
  border-radius:20px;padding:5px 12px;background:var(--paper-2)}

/* ---------- Footer ---------- */
.site-foot{background:#F1ECE0;border-top:1px solid var(--line);padding:48px 0 28px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.foot-grid h4{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);margin:0 0 14px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:9px}
.foot-grid a{color:var(--ink)}
.foot-grid a:hover{color:var(--blued)}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:34px;
  padding-top:18px;border-top:1px solid var(--line);font-family:var(--mono);font-size:.78rem;color:var(--steel)}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:460px){.foot-grid{grid-template-columns:1fr}}

/* ---------- Notice / disclaimer ---------- */
.notice{background:#FAF4E6;border:1px solid #E8D9AE;border-radius:var(--radius);padding:16px 18px;
  font-size:.9rem;color:#6b5a2c}
.notice strong{color:#5a4a20}

/* ---------- utilities ---------- */
.mt0{margin-top:0}.mb0{margin-bottom:0}
.stack>*+*{margin-top:14px}
.pill{display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--blued);border:1px solid var(--line);border-radius:20px;padding:4px 11px;background:var(--paper-2)}

@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}