/* Sigun Ar-Ge · koyu mühendislik teması */
:root{
  --bg:#0b1219; --bg2:#0e1720; --panel:#111c27; --line:#22364a; --fg:#e8eef5; --muted:#93a4b7; --dim:#6b7d90;
  --accent:#4ea3ff; --cyan:#47d6e0; --green:#4fd18b; --amber:#f2b84b; --coral:#ff7a59; --btnfg:#06121f;
  --display:"Sora",system-ui,-apple-system,"Segoe UI",sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --max:1160px; --r:14px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:var(--display);margin:0;text-wrap:balance;letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.lead{color:var(--muted);font-size:1.08rem;max-width:62ch}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;text-decoration:none;padding:12px 20px;border-radius:10px;font-size:.95rem;transition:transform .15s,background .15s}
.btn-primary{background:var(--accent);color:var(--btnfg)}
.btn-primary:hover{transform:translateY(-1px);background:#6db4ff}
.btn-ghost{border:1px solid var(--line);color:var(--fg)}
.btn-ghost:hover{border-color:var(--accent)}

/* header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(11,18,25,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(34,54,74,.6)}
.nav{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font-family:var(--display);font-weight:700;font-size:1.1rem;margin-right:auto}
.brand img{height:44px;width:auto;border-radius:8px}
.wordmark{display:grid;line-height:1;gap:3px}
.wordmark b{font-family:var(--display);font-weight:700;font-size:1.15rem;letter-spacing:.04em;color:var(--fg)}
.wordmark small{font-family:var(--display);font-weight:600;font-size:.62rem;letter-spacing:.32em;color:var(--muted)}
.brand small{font-family:var(--mono);font-weight:400;font-size:.7rem;color:var(--muted);letter-spacing:.1em}
.nav-links{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--muted);text-decoration:none;font-size:.92rem}
.nav-links a:hover{color:var(--fg)}
.lang{font-family:var(--mono);font-size:.8rem;display:flex;gap:4px;border:1px solid var(--line);border-radius:8px;padding:3px}
.lang a{padding:3px 8px;border-radius:5px;color:var(--muted);text-decoration:none}
.lang a[aria-current]{background:var(--panel);color:var(--fg)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--fg);border-radius:8px;padding:8px 10px;font:inherit;cursor:pointer}
@media (max-width:900px){
  .menu-btn{display:block}
  .nav-links{position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px max(20px,env(safe-area-inset-left,0px)) 16px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{display:block;padding:12px 0;font-size:1rem;border-bottom:1px solid rgba(34,54,74,.5)}
}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.9}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 20%,rgba(11,18,25,.55) 60%,rgba(11,18,25,.2));pointer-events:none}
.hero-in{position:relative;z-index:1;padding-block:110px 100px;display:grid;gap:26px;max-width:var(--max)}
.hero h1{font-size:clamp(2.2rem,5.4vw,4rem);line-height:1.06;max-width:16ch}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 28px;font-family:var(--mono);font-size:.8rem;color:var(--muted);margin-top:14px}
.hero-meta b{color:var(--fg);font-weight:500}

/* sections */
section{padding-block:96px}
.sec-head{display:grid;gap:14px;margin-bottom:48px}
.sec-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.15;max-width:22ch}
.alt{background:var(--bg2);border-block:1px solid var(--line)}

/* products */
.featured{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:24px}
.featured .media{background:#0b1219;display:flex;align-items:center}
.featured .media img{width:100%;height:auto}
.featured .body{padding:36px;display:grid;gap:16px;align-content:center}
.products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.product{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s}
.product:hover{border-color:var(--c,var(--accent));transform:translateY(-2px)}
.product .media{aspect-ratio:3/2;background:#0b1219;max-width:100%}
.product .media img{width:100%;height:100%;object-fit:cover}
.product .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.p-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.p-name{font-family:var(--display);font-size:1.4rem;font-weight:700;letter-spacing:.01em}
.p-tag{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase}
.status{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;padding:4px 8px;border-radius:999px;border:1px solid currentColor;white-space:nowrap}
.status.live{color:var(--green)}
.status.soon{color:var(--amber)}
.status.dev{color:var(--coral)}
.product p,.featured p{color:var(--muted)}
.feats{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.feats li{padding-left:14px;border-left:2px solid var(--line);font-size:.94rem;color:var(--muted)}
.feats li b{color:var(--fg);font-weight:600;display:block}
.p-cta{margin-top:auto;padding-top:8px;display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center}
.fine{font-size:.78rem;color:var(--dim)}
.link-arrow{color:var(--c,var(--accent));text-decoration:none;font-weight:600;font-size:.94rem}
.link-arrow:hover{text-decoration:underline}
.partners{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.partner{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--c,var(--accent));border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:12px;transition:border-color .2s,transform .2s}
.partner:hover{border-color:var(--c,var(--accent));transform:translateY(-2px)}
.partner p{color:var(--muted)}
@media (max-width:760px){.partners{grid-template-columns:minmax(0,1fr)}}
@media (max-width:980px){.products{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){.featured{grid-template-columns:minmax(0,1fr)}.featured .media{min-height:0}.featured .body{padding:24px}.products{grid-template-columns:minmax(0,1fr)}}

/* R&D service */
.service{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:48px;align-items:start}
.service .media{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;position:sticky;top:96px}
.chain{list-style:none;margin:0;padding:0;counter-reset:s;display:grid;gap:0}
.chain li{counter-increment:s;display:grid;grid-template-columns:52px minmax(0,1fr);gap:16px;padding:20px 0;border-top:1px solid var(--line)}
.chain li:last-child{border-bottom:1px solid var(--line)}
.chain li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);color:var(--cyan);font-size:.9rem;padding-top:3px}
.chain h3{font-size:1.1rem;margin-bottom:4px}
.chain p{color:var(--muted);font-size:.95rem}
@media (max-width:860px){.service{grid-template-columns:minmax(0,1fr)}.service .media{position:static}}

/* sectors */
.sectors{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.sector{padding:28px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel);display:grid;gap:10px;align-content:start}
.sector .k{font-family:var(--mono);font-size:.75rem;color:var(--cyan);letter-spacing:.1em}
.sector h3{font-size:1.2rem}
.sector p{color:var(--muted);font-size:.95rem}
@media (max-width:860px){.sectors{grid-template-columns:minmax(0,1fr)}}

/* about */
.about{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:48px;align-items:start}
.about .lead+.lead{margin-top:14px}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.fact{background:var(--panel);padding:22px}
.fact b{display:block;font-family:var(--display);font-size:1.6rem}
.fact span{color:var(--muted);font-size:.88rem}
@media (max-width:860px){.about{grid-template-columns:minmax(0,1fr)}}

/* contact */
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px}
.contact dl{margin:0;display:grid;gap:18px}
.contact dt{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
.contact dd{margin:4px 0 0;font-size:1.05rem}
.contact dd a{color:var(--fg);text-decoration:none;border-bottom:1px solid var(--line)}
.contact dd a:hover{border-color:var(--accent)}
.cta-box{background:linear-gradient(135deg,#12263a,#0f1b26);border:1px solid var(--line);border-radius:var(--r);padding:32px;display:grid;gap:16px;align-content:start}
.cta-box h3{font-size:1.4rem}
.cta-box p{color:var(--muted)}
@media (max-width:860px){.contact{grid-template-columns:minmax(0,1fr)}}

/* footer */
footer{border-top:1px solid var(--line);padding-block:40px;color:var(--dim);font-size:.85rem}
.foot{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr);gap:32px}
.foot-logo{display:inline-block;margin-bottom:16px}
.foot-logo img{height:130px;width:auto;border-radius:12px}
.foot h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 10px;font-weight:500}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.foot a{color:var(--dim);text-decoration:none}
.foot a:hover{color:var(--fg)}
.legal{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
@media (max-width:760px){.foot{grid-template-columns:minmax(0,1fr)}}

/* reveal: görünür başlar, yalnız hareket ekler */
.rv{animation:rv .7s ease both}
@keyframes rv{from{transform:translateY(12px);opacity:.001}to{transform:none;opacity:1}}