:root{
  --bg:#EEF1EC; --surface:#F8FAF6; --ink:#16211F; --muted:#56635F; --line:#C9D1CA;
  --accent:#0E6A7E; --accent-ink:#FFFFFF; --warm:#B8621B; --chip:#E1E7E0; --scene:#F3F5F1;
  --display:"Archivo","Arial Narrow",Arial,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#111917; --surface:#18221F; --ink:#E4EBE6; --muted:#9AA8A2; --line:#2C3935;
    --accent:#4FB6CB; --accent-ink:#0C1513; --warm:#E08C45; --chip:#22302C; --scene:#141C1A;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#111917; --surface:#18221F; --ink:#E4EBE6; --muted:#9AA8A2; --line:#2C3935;
  --accent:#4FB6CB; --accent-ink:#0C1513; --warm:#E08C45; --chip:#22302C; --scene:#141C1A;
}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;margin:0}
.wrap{max-width:1140px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0;line-height:1.05}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand b{font-family:var(--display);font-stretch:118%;font-weight:850;font-size:22px;letter-spacing:.02em}
.brand span{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.nav ul{display:flex;gap:18px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.nav ul a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:500}
.nav ul a:hover{color:var(--accent)}
@media (max-width:720px){.nav ul{display:none}}

/* hero */
.hero{display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,48px);align-items:start;padding-block:clamp(40px,7vw,88px) clamp(32px,5vw,64px)}
.hero h1{font-stretch:72%;font-weight:800;font-size:clamp(46px,7.4vw,92px);letter-spacing:-.01em;text-transform:uppercase}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{font-size:18px;color:var(--muted);max-width:72ch;margin:22px 0 28px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:4px;font-weight:600;font-size:15px;text-decoration:none;border:1.5px solid var(--accent);cursor:pointer;font-family:var(--body)}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--accent)}
.btn:hover{filter:brightness(1.08)}
figure.section-fig{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:16px 16px 12px}
figure.section-fig canvas{display:block;width:100%;height:auto;aspect-ratio:16/8.4}
figcaption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-top:10px}
.scale{display:flex;align-items:center;gap:8px}
.scale i{display:block;width:120px;max-width:30vw;height:8px;border-radius:2px;background:linear-gradient(90deg,#1c2f9e,#1f6fd1,#1fb3c9,#3cc36b,#c9d63a,#f2a623,#e2521f,#a3171b)}
@media (max-width:860px){.hero{grid-template-columns:1fr}}

/* params strip */
.strip{border-block:1px solid var(--line);background:var(--surface)}
.strip .wrap{display:grid;grid-template-columns:repeat(6,1fr)}
.stat{padding:22px 14px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat .sym{font-family:var(--mono);font-size:13px;color:var(--warm)}
.stat .name{font-family:var(--display);font-stretch:85%;font-weight:700;font-size:18px;line-height:1.2;margin:4px 0}
.stat .unit{font-size:14px;color:var(--muted)}
@media (max-width:980px){.strip .wrap{grid-template-columns:repeat(3,1fr)}.stat:nth-child(4){border-left:0;padding-left:0}.stat:nth-child(n+4){border-top:1px solid var(--line)}}
@media (max-width:560px){.strip .wrap{grid-template-columns:1fr 1fr}.stat{border-left:1px solid var(--line)!important;padding-left:18px!important;border-top:1px solid var(--line)}.stat:nth-child(odd){border-left:0!important;padding-left:0!important}.stat:nth-child(-n+2){border-top:0}}

section.block{padding-block:clamp(56px,8vw,96px)}
.head{display:grid;grid-template-columns:1fr 1.3fr;gap:24px 48px;align-items:end;margin-bottom:40px}
.head h2{font-stretch:78%;font-weight:800;font-size:clamp(34px,4.6vw,54px);text-transform:uppercase}
.head p{color:var(--muted);margin:0;max-width:60ch}
@media (max-width:760px){.head{grid-template-columns:1fr}}

/* services */
.services{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink)}
.svc{padding:26px 24px 30px 0;border-bottom:1px solid var(--line);display:grid;gap:10px;align-content:start}
.svc:not(:nth-child(3n+1)){padding-left:22px;border-left:1px solid var(--line)}
.svc{padding-right:22px}
.svc .code{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.06em}
.svc h3{font-size:24px;font-stretch:88%;font-weight:750}
.svc p{margin:0;color:var(--muted);font-size:15px}
.svc ul{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.svc li{font-family:var(--mono);font-size:11.5px;background:var(--chip);padding:3px 8px;border-radius:3px}
@media (max-width:900px){.services{grid-template-columns:1fr 1fr}.svc{padding-left:0!important;border-left:0!important;padding-right:20px}}
@media (max-width:560px){.services{grid-template-columns:1fr}}

/* site classes */
.twocol{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media (max-width:860px){.twocol{grid-template-columns:1fr}}
.tbl-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:6px}
table{border-collapse:collapse;width:100%;font-size:14.5px;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line)}
th{font-family:var(--mono);font-size:11.5px;font-weight:500;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
tr:last-child td{border-bottom:0}
td.cls{font-family:var(--display);font-weight:800;font-size:18px;font-stretch:90%}
td.mono{font-family:var(--mono);font-size:13.5px}
.bar{height:6px;border-radius:3px;background:var(--accent);opacity:.8}
.note{font-size:13px;color:var(--muted);margin-top:10px}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s}
.step{padding:0 22px 0 0;position:relative}
.step + .step{padding-left:22px;border-left:1px dashed var(--line)}
.step .n{font-family:var(--mono);font-size:13px;color:var(--warm);display:block;margin-bottom:10px}
.step h3{font-size:22px;font-stretch:88%;font-weight:750;margin-bottom:8px}
.step p{margin:0;color:var(--muted);font-size:15px}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr;gap:32px 0}.step:nth-child(3){padding-left:0;border-left:0}}
@media (max-width:520px){.steps{grid-template-columns:1fr}.step{padding-left:0!important;border-left:0!important}}

/* equipment + area */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:26px}
.panel h3{font-size:24px;font-stretch:88%;font-weight:750;margin-bottom:14px}
dl.spec{display:grid;grid-template-columns:auto 1fr;gap:10px 20px;margin:0;font-size:15px}
dl.spec dt{font-family:var(--mono);font-size:12.5px;color:var(--muted);padding-top:2px}
dl.spec dd{margin:0}
.regions{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.regions span{border:1px solid var(--line);padding:6px 12px;border-radius:30px;font-size:14px}

/* contact */
.contact{background:var(--ink);color:var(--bg);border-radius:8px;padding:clamp(28px,5vw,56px);display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center}
.contact h2{font-stretch:75%;font-weight:800;font-size:clamp(32px,4.4vw,52px);text-transform:uppercase;color:var(--bg)}
.contact p{color:color-mix(in srgb,var(--bg) 75%,var(--ink));margin:14px 0 0;max-width:48ch}
.cline{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid color-mix(in srgb,var(--bg) 25%,var(--ink));padding-block:14px;flex-wrap:wrap}
.cline .k{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:color-mix(in srgb,var(--bg) 60%,var(--ink))}
.cline .v{font-size:17px;font-weight:500;user-select:all;word-break:break-all}
.copy{background:transparent;border:1px solid color-mix(in srgb,var(--bg) 40%,var(--ink));color:var(--bg);font-family:var(--mono);font-size:12px;padding:5px 10px;border-radius:3px;cursor:pointer}
@media (max-width:760px){.contact{grid-template-columns:1fr}}
footer{padding-block:32px 48px;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* 3B ERT örnek çalışma */
#vaka .viewer{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:16px;align-items:start}
@media (max-width:900px){#vaka .viewer{grid-template-columns:1fr}}
#plot3d{width:100%;height:min(70vh,640px);min-height:400px;background:var(--scene);border:1px solid var(--line);border-radius:6px;overflow:hidden}
#vaka aside{display:flex;flex-direction:column;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:18px;font-size:14px}
#vaka .grp{display:flex;flex-direction:column;gap:8px}
#vaka .lbl{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
#vaka .chips{display:flex;flex-wrap:wrap;gap:6px}
#vaka .chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:4px;padding:4px 8px;cursor:pointer;user-select:none;font-size:13px}
#vaka input,#vaka select{accent-color:var(--accent)}
#vaka input[type=range],#vaka select{width:100%}
#vaka select{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:5px 6px}
#vaka .row{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:13px}
#vaka .mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
#vaka .cbar{height:12px;border-radius:2px;border:1px solid var(--line)}
#vaka .ticks{position:relative;height:16px;font-size:11px;color:var(--muted)}
#vaka .ticks span{position:absolute;transform:translateX(-50%)}
#vaka .zone{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}
#vaka table{font-size:13px}
#vaka td,#vaka th{padding:4px 0}
#vaka td:not(:first-child),#vaka th:not(:first-child){text-align:right}
#vaka .hint{font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-top:10px}
#vaka .notes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;color:var(--muted);font-size:14px}
#vaka .notes b{display:block;color:var(--ink);font-family:var(--display);font-stretch:90%;font-size:17px;margin-bottom:4px}
#vaka .notes p{margin:0}
@media (max-width:820px){#vaka .notes{grid-template-columns:1fr}}

#vaka2 .figs{display:grid;grid-template-columns:1fr 1.9fr;gap:16px;align-items:start}
@media (max-width:860px){#vaka2 .figs{grid-template-columns:1fr}}
#vaka2 figure{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:10px}
#vaka2 figure img{display:block;width:100%;height:auto;border-radius:3px}
#vaka2 figcaption{display:block;font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-top:8px}
#vaka2 .legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px;font-size:13px;color:var(--muted)}
#vaka2 .legend i{display:inline-block;width:14px;height:14px;border:1px solid var(--line);vertical-align:-2px;margin-right:6px}
#vaka2 .notes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;color:var(--muted);font-size:14px}
#vaka2 .notes b{display:block;color:var(--ink);font-family:var(--display);font-stretch:90%;font-size:17px;margin-bottom:4px}
#vaka2 .notes p{margin:0}
@media (max-width:820px){#vaka2 .notes{grid-template-columns:1fr}}

#vaka3 .kgrid{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:start}
@media (max-width:860px){#vaka3 .kgrid{grid-template-columns:1fr}}
#vaka3 figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:6px;padding:10px}
#vaka3 figure img{display:block;width:100%;height:auto}
#vaka3 figcaption{display:block;font-family:var(--mono);font-size:11.5px;color:#56635F;margin-top:8px}
#vaka3 dl.spec{margin-top:6px}
#vaka3 .body p{color:var(--muted);margin:0 0 14px;max-width:56ch}

#vaka4 .dgrid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}
@media (max-width:860px){#vaka4 .dgrid{grid-template-columns:1fr}}
#vaka4 figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:6px;padding:10px}
#vaka4 figure img{display:block;width:100%;height:auto}
#vaka4 figcaption{display:block;font-family:var(--mono);font-size:11.5px;color:#56635F;margin-top:8px}
#vaka4 .body p{color:var(--muted);margin:0 0 14px;max-width:56ch}

.logo{height:42px;width:auto;display:block}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .logo{filter:brightness(0) invert(.92)}}
:root[data-theme="dark"] .logo{filter:brightness(0) invert(.92)}
@media (max-width:420px){.brand span{display:none}}

/* --- çok sayfalı site eklemeleri --- */
img{max-width:100%}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;z-index:20;background:var(--surface);padding:8px 12px}
.nav nav ul a[aria-current="page"]{color:var(--accent)}
.menu-btn{display:none;background:transparent;border:1px solid var(--line);color:var(--ink);border-radius:4px;padding:7px 12px;font:600 14px var(--body);cursor:pointer}
@media (max-width:1120px){
  .menu-btn{display:inline-block}
  .nav{flex-wrap:wrap}
  .nav nav{flex-basis:100%;display:none}
  .nav nav.open{display:block}
  .nav nav ul{display:flex!important;flex-direction:column;gap:0;padding:6px 0 10px}
  .nav nav ul a{display:block;padding:10px 0;border-top:1px solid var(--line);font-size:15px}
}
@media (min-width:1121px){.nav nav ul{display:flex!important}}
.crumbs{font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:22px}
.crumbs a{color:var(--muted)}
.page-hero{padding-block:clamp(28px,5vw,56px) clamp(24px,4vw,40px)}
.page-hero h1{font-stretch:74%;font-weight:800;font-size:clamp(38px,6vw,72px);text-transform:uppercase;letter-spacing:-.01em;margin-top:12px}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.page-hero .lead{font-size:18px;color:var(--muted);max-width:72ch;margin:20px 0 26px}
.prose{max-width:74ch}
.prose h2{font-stretch:80%;font-weight:800;font-size:clamp(26px,3.2vw,36px);text-transform:uppercase;margin:48px 0 14px}
.prose h3{font-size:21px;font-stretch:88%;font-weight:750;margin:28px 0 8px}
.prose p,.prose li{color:var(--ink)}
.prose p{margin:0 0 14px}
.prose ul{padding-left:20px;margin:0 0 14px}
.prose li{margin-bottom:6px}
.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;padding-bottom:clamp(40px,6vw,72px)}
@media (max-width:900px){.content-grid{grid-template-columns:1fr}}
.side{position:sticky;top:90px;display:flex;flex-direction:column;gap:16px}
.side .panel{padding:20px}
.side .panel h3{font-size:19px;margin-bottom:10px}
.side ul{list-style:none;margin:0;padding:0;font-size:14.5px}
.side li a{display:block;padding:7px 0;border-top:1px solid var(--line);text-decoration:none;color:var(--ink)}
.side li a:hover,.side li a[aria-current="page"]{color:var(--accent)}
.fig{margin:22px 0;background:#fff;border:1px solid var(--line);border-radius:6px;padding:10px}
.fig img{display:block;width:100%;height:auto;border-radius:3px}
.fig figcaption{display:block;font-family:var(--mono);font-size:11.5px;color:#56635F;margin-top:8px}
.faq details{border-top:1px solid var(--line);padding:14px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;font-size:16.5px}
.faq details p{margin:10px 0 0;color:var(--muted)}
.svc h3 a{color:inherit;text-decoration:none}
.svc h3 a:hover{color:var(--accent)}
.svc .more{font-size:14px;font-weight:600;text-decoration:none}
.cta{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;background:var(--ink);color:var(--bg);border-radius:8px;padding:clamp(22px,4vw,36px);margin:40px 0 0}
.cta b{font-family:var(--display);font-stretch:80%;font-size:clamp(22px,3vw,30px);text-transform:uppercase}
.cta .btn.primary{background:var(--bg);color:var(--ink);border-color:var(--bg)}
.cta .btn.ghost{color:var(--bg);border-color:var(--bg)}
.cline .v a{color:inherit;text-decoration:none}
.cline .v a:hover{text-decoration:underline}
.foot-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:6px 24px;padding-block:28px 0;border-top:1px solid var(--line);font-size:14px}
.foot-links a{color:var(--muted);text-decoration:none}
.foot-links a:hover{color:var(--accent)}
.foot-links b{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:500;margin-bottom:6px}
.city-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:18px 0}
.city-grid .panel{padding:18px}
.city-grid h3{font-size:20px;margin-bottom:6px}
.city-grid p{margin:0;color:var(--muted);font-size:14.5px}
#plot3d .load{display:flex;align-items:center;justify-content:center;height:100%;color:var(--muted);font-family:var(--mono);font-size:13px;text-align:center;padding:20px}
[id]{scroll-margin-top:84px}