:root{--bg:#f7f8fa;--surface:#fff;--alt:#eef1f5;--text:#0f1b2d;--muted:#56637a;--line:#dde3eb;--brand:#0f1b2d;--accent:#e8590c;--accent-ink:#fff;--radius:14px;--shadow:0 1px 2px rgba(15,27,45,.06),0 8px 24px rgba(15,27,45,.06)}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--surface:#121b2c;--alt:#0f1727;--text:#e6ebf2;--muted:#9aa7bb;--line:#22304a;--brand:#e6ebf2;--accent:#ff7a33;--accent-ink:#140a03;--shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25)}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:20}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--brand);font-size:19px;letter-spacing:-.01em}
.logo b{font-weight:700}
.nav{display:flex;align-items:center;gap:22px}
.nav a{text-decoration:none;color:var(--muted);font-size:15px}
.nav a:hover{color:var(--text)}
.nav a.btn{color:var(--accent-ink)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;padding:13px 22px;border-radius:999px;border:1px solid var(--accent);transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 35%,transparent)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{box-shadow:none;border-color:var(--text)}

.hero{padding:88px 0 72px}
.eyebrow{margin:0 0 14px;color:var(--accent);font-weight:600;font-size:14px;letter-spacing:.04em;text-transform:uppercase}
h1{margin:0;font-size:clamp(34px,6vw,62px);line-height:1.06;letter-spacing:-.03em;max-width:16ch}
h1 span{color:var(--muted)}
.lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:60ch;margin:22px 0 30px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.facts{list-style:none;padding:0;margin:56px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.facts li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.facts b{display:block;font-size:26px;letter-spacing:-.02em}
.facts span{color:var(--muted);font-size:14px}

.sec{padding:80px 0}
.sec-alt{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{margin:0 0 10px;font-size:clamp(28px,4vw,40px);letter-spacing:-.025em;line-height:1.15}
.sub{color:var(--muted);margin:0 0 36px;max-width:62ch;font-size:17px}
h3{margin:0 0 8px;font-size:18px;letter-spacing:-.01em}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.svc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.svc p{margin:0;color:var(--muted);font-size:15px}

.filters{display:flex;flex-wrap:wrap;gap:8px;margin:-12px 0 28px}
.chip{font:inherit;font-size:14px;cursor:pointer;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:7px 15px}
.chip.on{background:var(--text);color:var(--bg);border-color:var(--text)}
.refs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ref{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .2s ease}
.ref:hover{transform:translateY(-3px)}
.ref[hidden]{display:none}
.ref>a{display:block;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:var(--alt)}
.ref img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .5s ease}
.ref:hover img{transform:scale(1.03)}
.ref-b{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.ref-b>p{margin:0 0 12px;color:var(--muted);font-size:15px}
.ref-b .cat{margin:0 0 4px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent)}
.ref-b .tech{font-size:13px;margin-top:auto}
.go{font-size:14px;font-weight:600;text-decoration:none;color:var(--text)}
.go::after{content:" ↗";color:var(--accent)}
.go:hover{text-decoration:underline}

.steps{list-style:none;padding:0;margin:28px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.steps li::before{content:"0" counter(s);display:block;font-weight:700;color:var(--accent);font-size:14px;margin-bottom:10px}
.steps b{display:block;font-size:18px;margin-bottom:6px}
.steps span{color:var(--muted);font-size:15px}

.two{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:start}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.checks li{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px 14px 46px;position:relative}
.checks li::before{content:"";position:absolute;left:16px;top:17px;width:16px;height:16px;border-radius:50%;background:var(--accent)}
.checks li::after{content:"";position:absolute;left:21px;top:21px;width:6px;height:3px;border-left:2px solid var(--accent-ink);border-bottom:2px solid var(--accent-ink);transform:rotate(-45deg)}

.contact h2,.contact .sub{text-align:center;margin-left:auto;margin-right:auto}
.contact-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:900px;margin:0 auto}
.cbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-decoration:none;display:flex;flex-direction:column;gap:4px;transition:border-color .15s ease}
.cbox:hover{border-color:var(--accent)}
.cbox .k{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.cbox .v{font-size:17px;font-weight:600;overflow-wrap:anywhere}

.foot{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

@media (max-width:960px){.grid3,.refs{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.facts{grid-template-columns:repeat(2,1fr)}.two{grid-template-columns:1fr;gap:8px}}
@media (max-width:640px){.wrap{padding:0 16px}.nav a:not(.btn){display:none}.hero{padding:56px 0 48px}.grid3,.refs,.steps,.contact-row{grid-template-columns:1fr}.sec{padding:60px 0}.facts{margin-top:40px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* İletişim formu (2026-10-23) */
.form{max-width:900px;margin:0 auto 28px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:grid;gap:16px;box-shadow:var(--shadow)}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:grid;gap:6px;font-size:14px;font-weight:600}
.form label em{color:var(--accent);font-style:normal}
.form input,.form select,.form textarea{font:inherit;font-weight:400;font-size:16px;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 13px;width:100%}
.form textarea{resize:vertical;min-height:120px}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
.form [aria-invalid="true"]{border-color:#d33}
.hint{margin:-8px 0 0;font-size:13px;color:var(--muted)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.kvkk{margin:0;font-size:13px;color:var(--muted);max-width:46ch}
.form button[disabled]{opacity:.6;cursor:wait;transform:none}
.status{margin:0;font-size:15px;min-height:1px}
.status.ok{color:#1a8a4a}.status.err{color:#d33}
@media (prefers-color-scheme:dark){.status.ok{color:#4cd38a}.status.err{color:#ff7b7b}}
.or{text-align:center;color:var(--muted);font-size:14px;margin:0 0 16px}
@media (max-width:640px){.f2{grid-template-columns:1fr}.form{padding:20px}.form-foot .btn{width:100%}}

/* 2026-10-23: teknoloji satırı kalkınca site bağlantısı kartın dibine sabitlenir */
.ref-b .go{margin-top:auto;align-self:flex-start}
.ref-b>p:not(.cat){margin-bottom:16px}