:root{
  --bg:#fafaf9;--surface:#ffffff;--ink:#0f172a;--muted:#5b6472;--line:#e6e8ec;
  --accent:#4f46e5;--accent-2:#0ea5e9;--accent-ink:#ffffff;--shadow:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06);
  --radius:18px;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0a0d13;--surface:#111620;--ink:#e9edf4;--muted:#98a2b3;--line:#1d2432;
    --accent:#8b8cf8;--accent-2:#38bdf8;--accent-ink:#0a0d13;--shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.35)}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;overflow-x:clip;background:var(--bg);color:var(--ink);font:16px/1.65 ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
html[data-lang="en"] .tr,html[data-lang="tr"] .en{display:none!important}

/* header */
.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;letter-spacing:-.01em}
.brand i{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:inline-block}
nav{display:flex;align-items:center;gap:6px}
nav a.nl{color:var(--muted);text-decoration:none;font-size:.95rem;padding:8px 12px;border-radius:10px}
nav a.nl:hover{color:var(--ink);background:color-mix(in srgb,var(--ink) 6%,transparent)}
.lang-toggle{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--surface);margin-left:6px}
.lang-toggle button{border:0;background:transparent;color:var(--muted);font:inherit;font-size:.82rem;font-weight:600;padding:4px 11px;border-radius:999px;cursor:pointer}
html[data-lang="en"] .lang-toggle [data-set="en"],html[data-lang="tr"] .lang-toggle [data-set="tr"]{background:var(--ink);color:var(--bg)}
@media(max-width:640px){nav a.nl{display:none}}

/* hero */
.hero{padding:88px 0 56px;position:relative}
.hero:before{content:"";position:absolute;inset:-20% -10% auto -10%;height:520px;background:radial-gradient(60% 60% at 30% 20%,color-mix(in srgb,var(--accent) 18%,transparent),transparent 70%),radial-gradient(50% 50% at 80% 10%,color-mix(in srgb,var(--accent-2) 16%,transparent),transparent 70%);z-index:-1;pointer-events:none}
.eyebrow{display:inline-block;font-size:.82rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
h1{font-size:clamp(2.2rem,5.2vw,3.6rem);line-height:1.08;letter-spacing:-.03em;margin:0 0 20px;font-weight:800;max-width:18ch}
h1 .grad{background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.15rem;color:var(--muted);max-width:56ch;margin:0 0 32px}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:12px;font-weight:600;text-decoration:none;border:1px solid var(--line);color:var(--ink);background:var(--surface)}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow)}

/* sections */
section{padding:56px 0}
.sec-head{margin-bottom:28px}
.sec-head h2{font-size:1.7rem;letter-spacing:-.02em;margin:0 0 6px}
.sec-head p{margin:0;color:var(--muted)}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
a.app-card{display:flex;flex-direction:column;gap:16px;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s;position:relative;overflow:hidden}
a.app-card:hover{transform:translateY(-3px)}
a.app-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--card-accent,var(--accent))}
.app-top{display:flex;gap:16px;align-items:center}
.app-top img{width:64px;height:64px;border-radius:15px;box-shadow:0 2px 8px rgba(0,0,0,.18)}
.app-top strong{display:block;font-size:1.1rem;letter-spacing:-.01em}
.app-top span{color:var(--muted);font-size:.92rem}
.app-desc{color:var(--muted);margin:0;font-size:.97rem}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:.78rem;font-weight:600;padding:3px 10px;border-radius:999px;background:color-mix(in srgb,var(--ink) 6%,transparent);color:var(--muted)}
.tag.soon{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent)}
.card.ghost{border-style:dashed;box-shadow:none;background:transparent;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:var(--muted);min-height:200px}
.feat h3{margin:0 0 6px;font-size:1.05rem}
.feat p{margin:0;color:var(--muted);font-size:.96rem}
.feat .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;margin-bottom:14px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:1.2rem}
.about{display:grid;gap:32px;grid-template-columns:1fr}
.about p{color:var(--muted);max-width:68ch;margin:0 0 12px;font-size:1.05rem}
.contact{text-align:center;padding:48px 24px}
.contact h2{font-size:1.8rem;margin:0 0 8px;letter-spacing:-.02em}
.contact p{color:var(--muted);margin:0 0 20px}
.site-footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:.9rem}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
.site-footer a{color:var(--muted)}

/* app page */
.app-hero{display:grid;gap:40px;grid-template-columns:1.2fr .8fr;align-items:center;padding:72px 0 40px}
@media(max-width:820px){.app-hero{grid-template-columns:1fr}}
.app-hero .icon{width:96px;height:96px;border-radius:22px;box-shadow:0 8px 24px rgba(0,0,0,.25);margin-bottom:20px}
.app-hero h1{font-size:clamp(2rem,4.5vw,3rem);max-width:none;margin-bottom:8px}
.sub{color:var(--muted);margin:0 0 20px;font-size:1.05rem}
.badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.badge{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:12px;background:var(--ink);color:var(--bg);font-weight:600;font-size:.92rem;opacity:.55;cursor:default}
.badge small{display:block;font-weight:500;font-size:.7rem;opacity:.8;line-height:1.1}
.phone{justify-self:center;width:260px}
.phone svg{width:100%;height:auto;filter:drop-shadow(0 24px 40px rgba(0,0,0,.28))}
.langs{display:flex;flex-wrap:wrap;gap:8px}
.prose{max-width:760px}
.prose h2{font-size:1.25rem;margin:28px 0 8px}
.prose p{color:var(--ink)}
.muted{color:var(--muted)}