/* =========================================================
   OTOTECH BİLİŞİM — stylesheet
   Tokens
   --bg:      #EEF0EF  soğuk çelik-beyazı zemin
   --panel:   #FFFFFF  kart/panel zemini
   --ink:     #171B1E  başlık/metin
   --ink-2:   #4B545B  ikincil metin
   --steel:   #263847  koyu çelik-lacivert (header/footer)
   --steel-2: #33495C  çelik açık ton
   --amber:   #D98C2B  vurgu (skorlama cihazı ışığı)
   --amber-2: #F2B25C  amber açık
   --line:    #D7DAD8  ince çizgi
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --bg:#EEF0EF;
  --panel:#FFFFFF;
  --ink:#171B1E;
  --ink-2:#4B545B;
  --steel:#212F3B;
  --steel-2:#2F4356;
  --amber:#D98C2B;
  --amber-2:#F2B25C;
  --line:#D7DAD8;
  --line-dark:rgba(255,255,255,.12);
  --radius:2px;
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:'Archivo',sans-serif;
  font-weight:700;
  line-height:1.12;
  letter-spacing:-0.01em;
  margin:0 0 .5em;
  color:var(--ink);
}
p{margin:0 0 1em;color:var(--ink-2);max-width:62ch;}
.mono{font-family:'IBM Plex Mono',monospace;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}
@media (prefers-reduced-motion: reduce){*{animation:none !important;transition:none !important;}}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section--panel{background:var(--panel);}
.rule{border:0;border-top:1px solid var(--line);margin:0;}

/* ---------- code-tag: diagnostik kod etiketi ---------- */
.code-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;font-weight:600;color:var(--amber);
  border:1px solid rgba(217,140,43,.4);
  padding:4px 10px;border-radius:2px;
  background:rgba(217,140,43,.06);
  margin-bottom:18px;
}
.code-tag::before{content:'●';font-size:8px;color:var(--amber);}

/* ---------- header ---------- */
.site-header{
  background:var(--steel);
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid var(--line-dark);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;
}
.brand{display:flex;align-items:center;color:#fff;}
.brand-logo{height:38px;width:auto;display:block;}
nav.main-nav{display:flex;align-items:center;gap:2px;}
nav.main-nav a{
  color:#C7CDD2;font-size:14.5px;font-weight:500;padding:10px 16px;
  border-radius:2px;transition:color .15s;
}
nav.main-nav a:hover, nav.main-nav a.active{color:#fff;}
nav.main-nav a.active{color:var(--amber-2);}
.header-actions{display:flex;align-items:center;gap:14px;}
.btn-call{
  font-family:'IBM Plex Mono',monospace;font-size:14px;color:#fff;
  border:1px solid var(--line-dark);padding:9px 14px;border-radius:2px;
  white-space:nowrap;
}
.btn-call:hover{border-color:var(--amber);color:var(--amber-2);}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'Archivo',sans-serif;font-weight:600;font-size:15px;
  padding:14px 24px;border-radius:2px;border:1px solid transparent;
  cursor:pointer;
}
.btn-primary{background:var(--amber);color:#1B1200;}
.btn-primary:hover{background:var(--amber-2);}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent;}
.btn-ghost:hover{border-color:var(--ink);}
.btn-on-dark{border-color:var(--line-dark);color:#fff;}
.btn-on-dark:hover{border-color:var(--amber);color:var(--amber-2);}

/* ---------- hero (tam arka plan fotoğraflı) ---------- */
.hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  padding:120px 0 96px;
  background-image:url('../img/stethoscope-diagnostic.jpg');
  background-size:cover;
  background-position:38% 42%;
  background-repeat:no-repeat;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,
    rgba(19,26,32,.96) 0%,
    rgba(19,26,32,.92) 30%,
    rgba(19,26,32,.62) 58%,
    rgba(19,26,32,.28) 100%);
}
.hero .wrap{position:relative;}
.hero h1{color:#fff;font-size:clamp(32px,4.4vw,52px);max-width:16ch;}
.hero p.lead{color:#C7CDD2;font-size:18px;max-width:46ch;}
.hero-stats{display:flex;gap:36px;margin-top:36px;flex-wrap:wrap;}
.hero-stats div strong{
  display:block;font-family:'Archivo',sans-serif;font-size:26px;color:#fff;
}
.hero-stats div span{font-size:13px;color:#C7CDD2;}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap;}

/* ---------- diag-monitor: animasyonlu teşhis göstergesi ---------- */
.diag-monitor{
  margin-top:38px;max-width:330px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(19,26,32,.45);
  backdrop-filter:blur(3px);
  padding:16px 18px;
}
.diag-monitor .row{display:flex;align-items:center;gap:9px;margin-bottom:12px;}
.diag-monitor .row .mono{font-size:11px;color:#AEB6BB;letter-spacing:.05em;}
.diag-monitor .dot{
  width:9px;height:9px;border-radius:50%;flex:none;
  animation:diagDot 4.5s ease-in-out infinite;
}
.diag-monitor .track{
  height:3px;background:rgba(255,255,255,.16);position:relative;overflow:hidden;
}
.diag-monitor .fill{
  position:absolute;left:0;top:0;height:100%;background:var(--amber);
  width:4%;animation:diagFill 4.5s ease-in-out infinite;
}
.diag-monitor .label{position:relative;height:36px;margin-top:11px;}
.diag-monitor .label span{position:absolute;left:0;top:0;width:100%;}
.diag-monitor .scanning{
  font-family:'Archivo',sans-serif;font-weight:600;font-size:14px;color:#fff;
  animation:diagScanText 4.5s ease-in-out infinite;
}
.diag-monitor .scanning small{
  display:block;font-family:'IBM Plex Mono',monospace;font-weight:500;
  font-size:11.5px;color:#9AA3A9;margin-top:3px;
}
.diag-monitor .done{
  font-family:'Archivo',sans-serif;font-weight:600;font-size:14px;color:#fff;
  opacity:0;animation:diagDoneText 4.5s ease-in-out infinite;
}
.diag-monitor .done small{
  display:block;font-family:'IBM Plex Mono',monospace;font-weight:500;
  font-size:11.5px;color:var(--amber-2);margin-top:3px;
}
@keyframes diagFill{0%{width:4%}58%{width:100%}100%{width:100%}}
@keyframes diagDot{
  0%{background:var(--amber);box-shadow:0 0 0 0 rgba(217,140,43,.45)}
  45%{background:var(--amber);box-shadow:0 0 0 6px rgba(217,140,43,0)}
  60%{background:#4C8C6B;box-shadow:0 0 0 0 rgba(76,140,107,.4)}
  100%{background:#4C8C6B;box-shadow:0 0 0 6px rgba(76,140,107,0)}
}
@keyframes diagScanText{0%,52%{opacity:1}62%,100%{opacity:0}}
@keyframes diagDoneText{0%,52%{opacity:0}64%,100%{opacity:1}}
@media (prefers-reduced-motion: reduce){
  .diag-monitor .dot{animation:none;background:#4C8C6B;}
  .diag-monitor .fill{animation:none;width:100%;}
  .diag-monitor .scanning{animation:none;opacity:0;}
  .diag-monitor .done{animation:none;opacity:1;}
}

/* ---------- page header (iç sayfalar) ---------- */
.page-hero{background:var(--steel);color:#fff;padding:56px 0;}
.page-hero .code-tag{color:var(--amber-2);border-color:rgba(242,178,92,.4);background:rgba(242,178,92,.08);}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,40px);max-width:22ch;}
.page-hero p{color:#B9C0C5;max-width:60ch;}
.breadcrumb{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:#8D969C;margin-bottom:16px;}
.breadcrumb a{color:#8D969C;}
.breadcrumb a:hover{color:var(--amber-2);}

/* ---------- grids / cards ---------- */
.grid{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);}
.grid > *{background:var(--panel);padding:34px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.feature h3{font-size:19px;margin-bottom:10px;}
.feature .num{
  font-family:'IBM Plex Mono',monospace;color:var(--amber);font-size:13px;
  display:block;margin-bottom:14px;
}

.card-list{list-style:none;margin:0;padding:0;}
.card-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-top:1px solid var(--line);
}
.card-list li:first-child{border-top:0;}
.card-list .tick{
  flex:none;width:20px;height:20px;margin-top:2px;
  border:1px solid var(--amber);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--amber);font-weight:700;
}

/* section heads */
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,2.8vw,34px);}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;}
.two-col img{border:1px solid var(--line);}

/* ---------- product/brand cards ---------- */
.product-card{display:flex;flex-direction:column;gap:16px;}
.product-card .thumb{
  height:180px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#F7F8F7;padding:20px;
}
.product-card .thumb img{max-height:120px;object-fit:contain;}
.product-card h3{font-size:18px;margin-bottom:4px;}
.product-card .cat{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--amber);}

.brand-strip{
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--panel);
  padding:26px 18px;height:110px;
}
.brand-strip img{max-height:52px;max-width:100%;object-fit:contain;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--steel);color:#fff;padding:64px 0;}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:26px;margin:0;max-width:30ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
details.faq{border-top:1px solid var(--line);padding:20px 0;}
details.faq:last-child{border-bottom:1px solid var(--line);}
details.faq summary{
  cursor:pointer;font-family:'Archivo',sans-serif;font-weight:600;font-size:17px;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary::after{content:'+';font-size:22px;color:var(--amber);font-weight:400;}
details.faq[open] summary::after{content:'–';}
details.faq p{margin-top:14px;}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);}
.contact-grid > div{background:var(--panel);padding:36px;}
.info-row{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line);}
.info-row:first-child{border-top:0;}
.info-row .k{
  font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--amber);
  width:110px;flex:none;padding-top:2px;
}
.info-row .v{font-size:15.5px;color:var(--ink);}
.info-row .v a:hover{color:var(--amber);}
.map-embed{border:0;width:100%;height:100%;min-height:320px;filter:grayscale(.15);}

/* ---------- footer ---------- */
.site-footer{background:var(--steel);color:#B9C0C5;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-grid h4{color:#fff;font-size:14px;font-family:'IBM Plex Mono',monospace;letter-spacing:.05em;margin-bottom:16px;}
.footer-grid ul{list-style:none;margin:0;padding:0;}
.footer-grid li{margin-bottom:10px;font-size:14.5px;}
.footer-grid a:hover{color:var(--amber-2);}
.footer-logo{height:46px;width:auto;margin-bottom:16px;display:block;}
.footer-brand p{color:#8D969C;font-size:14px;max-width:34ch;}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  border-top:1px solid var(--line-dark);margin-top:44px;padding-top:22px;
  font-size:13px;color:#727C82;
}

/* ---------- brand strips (dark variant for light/white logos) ---------- */
.brand-strip--dark{background:var(--steel);border-color:var(--steel);}
.brand-wordmark{
  font-family:'Archivo',sans-serif;font-weight:800;font-size:22px;
  color:var(--ink);letter-spacing:-0.01em;
}
.brand-wordmark span{color:var(--amber);}

/* ---------- marque / vehicle-brand tool cards ---------- */
.marque-card{display:flex;flex-direction:column;gap:14px;}
.marque-card .thumb{
  height:150px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#F7F8F7;padding:16px;overflow:hidden;
}
.marque-card .thumb img{max-height:118px;max-width:100%;object-fit:contain;}
.marque-card .thumb.no-photo{
  background:var(--steel);
}
.marque-card .thumb.no-photo span{
  font-family:'Archivo',sans-serif;font-weight:800;font-size:34px;color:#fff;
  letter-spacing:.02em;
}
.marque-card .make{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--amber);}
.marque-card h3{font-size:17px;margin-bottom:2px;}
.marque-card p{font-size:14px;margin-bottom:0;}

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .two-col{grid-template-columns:1fr;gap:32px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .contact-grid{grid-template-columns:1fr;}
}
@media (max-width: 680px){
  nav.main-nav{
    position:absolute;top:76px;left:0;right:0;background:var(--steel);
    flex-direction:column;align-items:stretch;padding:8px 16px 20px;
    border-bottom:1px solid var(--line-dark);
    display:none;
  }
  nav.main-nav.open{display:flex;}
  nav.main-nav a{padding:12px 8px;border-top:1px solid var(--line-dark);}
  .btn-call{display:none;}
  .nav-toggle{display:block;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .cta-band .wrap{flex-direction:column;align-items:flex-start;}
  .hero{background-position:30% 30%;padding:96px 0 64px;}
  .diag-monitor{max-width:none;}
}