/* ============================================================
   STEINMETZ — Design System
   Akredite muayene, denetim & mühendislik
   ============================================================ */

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

:root{
  /* palette */
  --ink:#0C1A2B;
  --ink-700:#13283f;
  --surface:#FFFFFF;
  --surface-2:#F5F7FA;
  --blue:#1E63FF;
  --blue-600:#1854db;
  --blue-050:#eef3ff;
  --yellow:#FFC400;
  --text:#0A0F14;
  --muted:#5A6675;
  --border:#E3E8EF;
  --border-strong:#cfd6e0;

  /* type */
  --font-head:'Manrope',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,monospace;

  /* shape */
  --r-sm:8px;
  --r:12px;
  --r-lg:16px;
  --r-xl:22px;

  /* shadow */
  --sh-1:0 1px 2px rgba(12,26,43,.04), 0 1px 3px rgba(12,26,43,.06);
  --sh-2:0 8px 24px rgba(12,26,43,.08), 0 2px 6px rgba(12,26,43,.05);
  --sh-3:0 18px 50px rgba(12,26,43,.14), 0 6px 14px rgba(12,26,43,.08);

  /* layout */
  --maxw:1200px;
  --gutter:clamp(20px,5vw,40px);
  --section-y:clamp(64px,9vw,116px);

  --header-h:74px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--surface);
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
::selection{background:var(--blue);color:#fff}

/* ---------- layout ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.container--wide{max-width:1320px}
.section{padding-block:var(--section-y)}
.section--tint{background:var(--surface-2)}
.section--ink{background:var(--ink);color:#fff}

/* ---------- typography ---------- */
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;letter-spacing:-.02em;line-height:1.07;margin:0;color:var(--ink)}
.section--ink h1,.section--ink h2,.section--ink h3{color:#fff}
.h-hero{font-size:clamp(2.5rem,5.4vw,4.5rem);font-weight:800;line-height:1.02;letter-spacing:-.03em}
.h1{font-size:clamp(2rem,3.6vw,3rem)}
.h2{font-size:clamp(1.75rem,3vw,2.6rem)}
.h3{font-size:clamp(1.25rem,1.6vw,1.5rem)}
p{margin:0 0 1rem}
.lead{font-size:clamp(1.075rem,1.5vw,1.3rem);color:var(--muted);line-height:1.55;font-weight:400}
.muted{color:var(--muted)}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue);
  display:inline-flex;align-items:center;gap:.6em;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--blue);display:inline-block}
.section--ink .eyebrow{color:#7ea6ff}
.section--ink .eyebrow::before{background:#7ea6ff}

.section-head{max-width:62ch}
.section-head .h2{margin-top:.55rem;text-wrap:balance}
.section-head .lead{margin-top:1rem}

/* ---------- buttons ---------- */
.btn{
  --bg:var(--blue);--fg:#fff;--bd:transparent;
  display:inline-flex;align-items:center;gap:.55em;justify-content:center;
  font-family:var(--font-head);font-weight:600;font-size:.975rem;letter-spacing:-.01em;
  padding:.82em 1.4em;border-radius:var(--r);
  background:var(--bg);color:var(--fg);border:1.5px solid var(--bd);
  cursor:pointer;transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn--primary{box-shadow:0 6px 16px rgba(30,99,255,.26)}
.btn--primary:hover{background:var(--blue-600);transform:translateY(-2px);box-shadow:0 10px 24px rgba(30,99,255,.32)}
.btn--ghost{--bg:transparent;--fg:var(--ink);--bd:var(--border-strong)}
.btn--ghost:hover{--bd:var(--ink);transform:translateY(-2px)}
.section--ink .btn--ghost{--fg:#fff;--bd:rgba(255,255,255,.32)}
.section--ink .btn--ghost:hover{--bd:#fff;background:rgba(255,255,255,.06)}
.btn--lg{padding:1em 1.7em;font-size:1.05rem}
.btn--block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:.45em;font-family:var(--font-head);font-weight:600;color:var(--blue);font-size:.97rem}
.link-arrow svg{width:16px;height:16px;transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- spec tag / pills ---------- */
.spec{
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;
  color:var(--muted);border:1px solid var(--border);border-radius:999px;
  padding:.32em .7em;display:inline-flex;align-items:center;gap:.5em;background:var(--surface);
}
.spec--blue{color:var(--blue);border-color:rgba(30,99,255,.3);background:var(--blue-050)}
.spec .dot{width:6px;height:6px;border-radius:50%;background:var(--yellow)}

/* ---------- cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:28px;transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--sh-2);border-color:var(--border-strong)}
.card .ic{margin-bottom:18px}
.card h3{margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.97rem;margin:0}
a.card{display:block}

/* icon chip */
.ic{
  width:48px;height:48px;border-radius:12px;display:grid;place-items:center;
  background:var(--blue-050);color:var(--blue);border:1px solid rgba(30,99,255,.14);
}
.ic svg{width:24px;height:24px;stroke-width:1.6}
.ic--ink{background:rgba(255,255,255,.06);color:#9ec0ff;border-color:rgba(255,255,255,.12)}
.ic--lg{width:58px;height:58px;border-radius:14px}
.ic--lg svg{width:28px;height:28px}

/* ---------- grids ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ---------- image frame (placeholder for real photos) ---------- */
.media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--ink);
  border:1px solid var(--border);
}
.media image-slot{width:100%;height:100%;display:block}
.media__motif{
  position:absolute;inset:0;
  background:
    linear-gradient(135deg, rgba(30,99,255,.18), rgba(12,26,43,.0) 60%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 1px, transparent 1px 38px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 38px),
    var(--ink);
  pointer-events:none;
}
.media__tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;color:rgba(255,255,255,.78);
  background:rgba(12,26,43,.6);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(6px);
  padding:.34em .6em;border-radius:7px;
}

/* ---------- divider rule ---------- */
.rule{height:1px;background:var(--border);border:0;margin:0}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.07s}
.reveal[data-d="2"]{transition-delay:.14s}
.reveal[data-d="3"]{transition-delay:.21s}
.reveal[data-d="4"]{transition-delay:.28s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============================================================
   HEADER
   ============================================================ */
.header{
  position:sticky;top:0;z-index:60;
  transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
  border-bottom:1px solid transparent;
}
.header__bar{display:flex;align-items:center;gap:28px;height:var(--header-h)}
.header.is-solid{background:rgba(255,255,255,.86);backdrop-filter:saturate(140%) blur(12px);border-bottom-color:var(--border);box-shadow:var(--sh-1)}
/* on pages with light hero, header starts solid */
.header--solid{background:rgba(255,255,255,.86);backdrop-filter:saturate(140%) blur(12px);border-bottom-color:var(--border)}

.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;font-size:1.28rem;color:var(--ink)}
.brand__mark{width:34px;height:34px;flex:none}
.brand small{display:block;font-family:var(--font-mono);font-weight:500;font-size:.58rem;letter-spacing:.22em;color:var(--muted);margin-top:2px}

.nav{display:flex;align-items:center;gap:4px;margin-inline:auto}
.nav__item{position:relative}
.nav__link{
  display:inline-flex;align-items:center;gap:.4em;
  font-family:var(--font-head);font-weight:600;font-size:.95rem;color:var(--ink);
  padding:.6em .8em;border-radius:9px;cursor:pointer;transition:background .15s ease,color .15s ease;
  background:none;border:0;
}
.nav__link:hover{background:var(--surface-2);color:var(--blue)}
.nav__link svg{width:14px;height:14px;transition:transform .2s ease}
.nav__item.open .nav__link svg{transform:rotate(180deg)}

.header__right{display:flex;align-items:center;gap:14px}

/* language switch */
.lang{display:inline-flex;border:1px solid var(--border-strong);border-radius:999px;overflow:hidden;font-family:var(--font-mono);font-size:.76rem;font-weight:500}
.lang button{background:none;border:0;padding:.42em .72em;cursor:pointer;color:var(--muted);letter-spacing:.04em}
.lang button.active{background:var(--ink);color:#fff}

/* mega menu */
.mega{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);
  width:min(720px,90vw);background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);padding:22px;opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease;
  display:grid;grid-template-columns:1fr 1fr;gap:10px 26px;z-index:70;
}
.nav__item.open .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega__col h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 6px;padding:8px 10px}
.mega__link{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:10px;transition:background .15s ease}
.mega__link:hover{background:var(--surface-2)}
.mega__link .ic{width:38px;height:38px;border-radius:9px}
.mega__link .ic svg{width:20px;height:20px}
.mega__link strong{display:block;font-family:var(--font-head);font-weight:600;font-size:.92rem;color:var(--ink)}
.mega__link span{font-size:.82rem;color:var(--muted);line-height:1.4}

/* mobile */
.hamburger{display:none;background:none;border:1px solid var(--border-strong);border-radius:10px;width:42px;height:42px;cursor:pointer;align-items:center;justify-content:center}
.hamburger svg{width:22px;height:22px}
.mobile-nav{display:none}

@media (max-width:1000px){
  .nav,.header__right .lang{display:none}
  .hamburger{display:inline-flex}
  .header__right .btn{display:none}
  .mobile-nav{
    display:block;position:fixed;inset:var(--header-h) 0 0;z-index:55;
    background:#fff;padding:18px var(--gutter) 40px;overflow:auto;
    transform:translateX(100%);transition:transform .3s ease;
  }
  .mobile-nav.open{transform:none}
  body.menu-open{overflow:hidden}
}

/* ============================================================
   FOOTER
   ============================================================ */
.cta-band{background:var(--blue);color:#fff;border-radius:var(--r-xl);padding:clamp(34px,5vw,56px);position:relative;overflow:hidden}
.cta-band__motif{position:absolute;inset:0;opacity:.5;pointer-events:none;
  background:repeating-linear-gradient(90deg,rgba(255,255,255,.08) 0 1px,transparent 1px 46px)}
.cta-band h2{color:#fff;position:relative}
.cta-band .lead{color:rgba(255,255,255,.86);position:relative}
.cta-band .btn--primary{background:#fff;color:var(--blue);box-shadow:0 8px 20px rgba(0,0,0,.18)}
.cta-band .btn--primary:hover{background:#f3f6ff}
.cta-band .btn--ghost{--fg:#fff;--bd:rgba(255,255,255,.5)}

.footer{background:var(--ink);color:rgba(255,255,255,.7);padding-block:clamp(48px,6vw,72px) 30px;font-size:.93rem}
.footer a{color:rgba(255,255,255,.7);transition:color .15s ease}
.footer a:hover{color:#fff}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer h4{color:#fff;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 16px;font-weight:500}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer .brand{color:#fff}
.footer .brand small{color:rgba(255,255,255,.5)}
.footer__news{display:flex;gap:8px;margin-top:12px}
.footer__news input{flex:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:.7em .9em;color:#fff;font-family:inherit;font-size:.9rem}
.footer__news input::placeholder{color:rgba(255,255,255,.45)}
.footer__news button{background:var(--blue);border:0;border-radius:10px;padding:0 .9em;color:#fff;cursor:pointer;display:grid;place-items:center}
.footer__social{display:flex;gap:10px;margin-top:18px}
.footer__social a{width:38px;height:38px;border:1px solid rgba(255,255,255,.16);border-radius:10px;display:grid;place-items:center}
.footer__social a:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}
.footer__social svg{width:18px;height:18px}
.footer__bottom{display:flex;flex-wrap:wrap;align-items:center;gap:16px 26px;margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);font-size:.84rem}
.footer__badges{display:flex;gap:12px;margin-right:auto}
.footer__legal{display:flex;gap:18px;flex-wrap:wrap}

/* accreditation seal */
.seal{
  display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(255,255,255,.2);
  border-radius:10px;padding:.5em .75em;font-family:var(--font-mono);font-size:.72rem;color:#fff;letter-spacing:.04em;
}
.seal__ring{width:26px;height:26px;border:2px solid var(--yellow);border-radius:50%;display:grid;place-items:center;font-weight:600;color:var(--yellow);font-size:.6rem;flex:none}
.seal--light{border-color:var(--border);color:var(--ink)}
.seal--light .seal__ring{border-color:var(--blue);color:var(--blue)}

/* ============================================================
   INNER PAGE COMPONENTS
   ============================================================ */
.subhero{background:var(--surface-2);border-bottom:1px solid var(--border);padding-block:clamp(34px,5vw,60px)}
.subhero--ink{background:var(--ink);color:#fff;border-bottom:0;position:relative;overflow:hidden}
.subhero--ink::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(900px 460px at 88% -20%,rgba(30,99,255,.3),transparent 60%),repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 58px)}
.subhero--ink>*{position:relative;z-index:2}
.subhero .h1{margin:.5rem 0 .9rem;max-width:20ch}
.subhero--ink .h1{color:#fff}
.subhero .lead{max-width:60ch}
.subhero--ink .lead{color:rgba(255,255,255,.76)}
.crumb{display:flex;gap:8px;align-items:center;font-family:var(--font-mono);font-size:.76rem;color:var(--muted);letter-spacing:.03em}
.crumb a:hover{color:var(--blue)}
.subhero--ink .crumb{color:rgba(255,255,255,.6)}
.crumb svg{width:13px;height:13px}
.subhero__specs{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

/* service group + cards */
.svc-group{margin-top:clamp(36px,5vw,58px)}
.svc-group__head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.svc-group__head .n{font-family:var(--font-mono);font-size:.78rem;color:var(--blue);letter-spacing:.08em}
.svc-group__head h2{font-size:clamp(1.3rem,1.9vw,1.7rem)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc-grid--4{grid-template-columns:repeat(4,1fr)}
.svc-card{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;transition:transform .2s,box-shadow .2s,border-color .2s}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--border-strong)}
.svc-card .ic{width:42px;height:42px}
.svc-card .ic svg{width:21px;height:21px}
.svc-card h3{font-size:1.04rem;line-height:1.25}
.svc-card p{color:var(--muted);font-size:.9rem;margin:0;flex:1}
.svc-card .foot{display:flex;align-items:center;justify-content:space-between;margin-top:4px}
.svc-card .std{font-family:var(--font-mono);font-size:.68rem;color:var(--muted);border:1px solid var(--border);border-radius:6px;padding:.2em .5em}
.svc-card .go{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:var(--surface-2);color:var(--blue);transition:background .15s,transform .15s}
.svc-card:hover .go{background:var(--blue);color:#fff;transform:translateX(3px)}
.svc-card .go svg{width:16px;height:16px}

/* callout / mandatory box */
.callout{display:flex;gap:18px;background:var(--blue-050);border:1px solid rgba(30,99,255,.22);border-radius:var(--r-lg);padding:24px 26px}
.callout .ic{flex:none}
.callout h3{font-size:1.1rem;margin-bottom:.35rem}
.callout p{margin:0;color:#324a63}
.callout--yellow{background:#fff9e6;border-color:rgba(255,196,0,.4)}
.callout--yellow .ic{background:#fff3cc;color:#9a7400;border-color:rgba(255,196,0,.4)}

/* detail layout */
.detail{display:grid;grid-template-columns:1fr 360px;gap:clamp(28px,4vw,56px);align-items:start}
.prose h2{font-size:clamp(1.35rem,2vw,1.7rem);margin:clamp(30px,4vw,46px) 0 14px}
.prose h2:first-child{margin-top:0}
.prose p{color:#33414f}
.prose ul.checks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.prose ul.checks li{display:flex;gap:12px;align-items:flex-start}
.prose ul.checks li svg{width:20px;height:20px;color:var(--blue);flex:none;margin-top:2px}
.proc{display:grid;gap:0;counter-reset:p;margin:0;padding:0;list-style:none}
.proc li{position:relative;padding:18px 0 18px 56px;border-bottom:1px solid var(--border)}
.proc li:last-child{border-bottom:0}
.proc li::before{counter-increment:p;content:counter(p);position:absolute;left:0;top:16px;width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;font-family:var(--font-mono);font-size:.85rem;display:grid;place-items:center}
.proc li strong{display:block;font-family:var(--font-head);font-size:1.02rem;color:var(--ink)}
.proc li span{color:var(--muted);font-size:.92rem}
.proc li .t{position:absolute;right:0;top:18px;font-family:var(--font-mono);font-size:.74rem;color:var(--blue)}

/* sticky quote box */
.quotebox{position:sticky;top:calc(var(--header-h) + 20px);background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:26px;display:flex;flex-direction:column;gap:14px}
.quotebox h3{font-size:1.2rem}
.quotebox .field{display:flex;flex-direction:column;gap:6px}
.quotebox label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.quotebox input,.quotebox select,.quotebox textarea{font-family:inherit;font-size:.95rem;padding:.7em .8em;border:1px solid var(--border-strong);border-radius:10px;background:#fff;color:var(--text)}
.quotebox input:focus,.quotebox select:focus,.quotebox textarea:focus{outline:2px solid var(--blue);outline-offset:0;border-color:var(--blue)}
.quotebox .mini{font-size:.78rem;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.quotebox .mini input{padding:0;margin-top:3px}

/* report sample */
.report{background:var(--ink);border-radius:var(--r-lg);padding:22px;color:#fff;position:relative;overflow:hidden}
.report .media__motif{opacity:.6}
.report__doc{position:relative;z-index:2;background:#fff;border-radius:8px;padding:18px;color:var(--text);box-shadow:var(--sh-2)}
.report__doc .bar{height:8px;background:var(--surface-2);border-radius:4px;margin:7px 0}
.report__doc .bar.s{width:60%}.report__doc .bar.m{width:85%}

/* accordion */
.acc{border-top:1px solid var(--border)}
.acc__item{border-bottom:1px solid var(--border)}
.acc__q{width:100%;background:none;border:0;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0;cursor:pointer;font-family:var(--font-head);font-weight:600;font-size:1.05rem;color:var(--ink)}
.acc__q .pm{width:26px;height:26px;flex:none;border:1px solid var(--border-strong);border-radius:50%;display:grid;place-items:center;transition:background .2s,transform .2s,color .2s}
.acc__q .pm svg{width:15px;height:15px}
.acc__item.open .acc__q .pm{background:var(--blue);border-color:var(--blue);color:#fff;transform:rotate(45deg)}
.acc__a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc__a p{padding:0 0 20px;margin:0;color:var(--muted)}

@media (max-width:960px){
  .svc-grid,.svc-grid--4{grid-template-columns:repeat(2,1fr)}
  .detail{grid-template-columns:1fr}
  .quotebox{position:static}
}
@media (max-width:620px){
  .svc-grid,.svc-grid--4{grid-template-columns:1fr}
  .callout{flex-direction:column;gap:12px}
}

@media (max-width:860px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:620px){
  .grid-2,.grid-4{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}