/* Seyir web sitesi: tek renkli (siyah/beyaz/gri + platin), dış kaynak yok (font, betik, analitik yok). */
:root{
  --bg:#09090b;--bg2:#101013;--card:#141417;--fg:#f3f3f1;--mut:#a3a6ad;--line:#25272c;--plat:#c9ccd2;
  --green:#2fb67c;--shadow:0 40px 90px -40px rgba(0,0,0,.9);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color-scheme:dark;
}
@media (prefers-color-scheme:light){:root{--bg:#f6f5f2;--bg2:#ecebe7;--card:#ffffff;--fg:#121316;--mut:#5d6169;--line:#dcdad4;--plat:#5f646c;--shadow:0 40px 80px -40px rgba(30,30,40,.35);color-scheme:light}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%}
.wrap{width:min(1080px,100% - 40px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---- üst çubuk ---- */
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:10px 14px;min-height:62px;padding-block:8px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--serif);font-size:23px;letter-spacing:.01em}
.mark{display:block;width:32px;height:32px;border-radius:9px;object-fit:cover}
nav.menu{display:flex;gap:4px;font-size:14px;flex-wrap:wrap;justify-content:flex-end}
nav.menu a{text-decoration:none;color:var(--mut);padding:7px 11px;border-radius:99px;transition:.2s}
nav.menu a:hover,nav.menu a.on{color:var(--fg);background:var(--bg2)}
.lang{border:1px solid var(--line);background:transparent;color:var(--fg);border-radius:99px;padding:6px 13px;font:inherit;font-size:13px;cursor:pointer}
.lang:hover{border-color:var(--plat)}
@media(max-width:760px){nav.menu a.opt{display:none}}

/* ---- düğmeler ---- */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;border-radius:99px;padding:13px 24px;font-weight:600;font-size:15px;border:1px solid var(--line);background:var(--card);color:var(--fg);transition:.25s}
.btn:hover{border-color:var(--plat);transform:translateY(-2px)}
.btn.primary{background:var(--fg);color:var(--bg);border-color:transparent}
.btn.soon{opacity:.62;cursor:default;pointer-events:none}
.btn svg{width:18px;height:18px}

/* ---- tanıtım: hero ---- */
.hero{position:relative;padding:72px 0 40px;overflow:hidden}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}
.eyebrow{font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut);margin:0 0 18px;display:flex;align-items:center;gap:10px}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(47,182,124,.6);animation:pulse 2.2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(47,182,124,0)}100%{box-shadow:0 0 0 0 rgba(47,182,124,0)}}
h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:-.015em;margin:0}
h1{font-size:clamp(40px,5.3vw,72px);line-height:1.04;margin-bottom:22px}
h1 em{font-style:italic;color:var(--plat)}
.lead{font-size:clamp(17px,2vw,20px);color:var(--mut);max-width:520px;margin:0 0 30px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta small{color:var(--mut);font-size:13px}
.stage{position:relative;display:grid;place-items:center;min-height:560px}
.phone{position:relative;width:min(290px,60vw);aspect-ratio:9/19.3;border-radius:46px;padding:9px;background:linear-gradient(145deg,#3a3d44,#0d0e11 45%,#2a2c32);box-shadow:var(--shadow),inset 0 0 0 1.5px #55585f}
.phone .screen{position:relative;width:100%;height:100%;border-radius:38px;overflow:hidden;background:#000}
.phone .screen img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.03);transition:opacity .9s ease,transform 1.4s ease}
.phone .screen img.on{opacity:1;transform:none}
.phone::after{content:"";position:absolute;inset:9px;border-radius:38px;background:linear-gradient(115deg,rgba(255,255,255,.14),transparent 38%);pointer-events:none}
.phone .hole{position:absolute;top:18px;left:50%;width:11px;height:11px;margin-left:-5px;border-radius:50%;background:#050506;z-index:2}
.phone.main{z-index:2;animation:float 9s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-8px)}}
.stage::before{content:"";position:absolute;width:520px;height:520px;max-width:120%;border-radius:50%;background:radial-gradient(closest-side,color-mix(in srgb,var(--plat) 24%,transparent),transparent 72%);filter:blur(6px);z-index:0}
.dotsnav{display:flex;gap:7px;margin-top:22px;justify-content:center}
.dotsnav button{width:26px;height:5px;border-radius:9px;border:0;padding:0;background:var(--line);cursor:pointer;transition:.3s}
.dotsnav button.on{background:var(--fg);width:44px}
@media(max-width:900px){.hero{padding-top:36px}.hero .wrap{grid-template-columns:1fr}.stage{order:-1;min-height:480px}.lead{max-width:none}}

/* ---- bölümler ---- */
section{padding:84px 0;position:relative}
section.alt{background:var(--bg2);border-block:1px solid var(--line)}
.kicker{font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut);margin:0 0 14px}
h2{font-size:clamp(32px,4.6vw,54px);line-height:1.06;margin-bottom:18px}
.sub{color:var(--mut);font-size:18px;max-width:640px;margin:0 0 44px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px;transition:transform .3s,border-color .3s}
.card:hover{transform:translateY(-4px);border-color:var(--plat)}
.card .ico{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);display:grid;place-items:center;margin-bottom:18px;color:var(--plat)}
.card .ico svg{width:22px;height:22px}
.card h3{font-size:24px;margin-bottom:8px}
.card p{margin:0;color:var(--mut);font-size:15.5px}
@media(max-width:900px){.grid3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.grid3{grid-template-columns:1fr}section{padding:60px 0}}

/* adımlar */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:s;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:var(--card)}
.step{padding:26px;border-right:1px solid var(--line);counter-increment:s}
.step:last-child{border:0}
.step::before{content:"0" counter(s);font-family:var(--serif);font-size:38px;color:var(--plat);display:block;margin-bottom:10px}
.step h3{font-size:22px;margin-bottom:6px}.step p{margin:0;color:var(--mut);font-size:15px}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}.step{border-bottom:1px solid var(--line)}.step:nth-child(2n){border-right:0}}
@media(max-width:560px){.steps{grid-template-columns:1fr}.step{border-right:0}}

/* adım anlatımı: kaydırdıkça telefon ekranı değişir */
.walk{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:64px;align-items:start}
.wstep{min-height:44vh;display:flex;flex-direction:column;justify-content:center;padding-left:28px;border-left:1px solid var(--line);opacity:.35;transition:opacity .5s ease,border-color .5s ease}
.wstep.on{opacity:1;border-color:var(--plat)}
.wstep .num{font:400 44px/1 var(--serif);color:var(--plat);margin-bottom:12px}
.wstep h3{font-size:30px;margin-bottom:8px}
.wstep p{margin:0;color:var(--mut);font-size:17px;max-width:420px}
.walk-phone{position:sticky;top:96px;display:grid;place-items:center;height:min(640px,calc(100vh - 130px))}
.walk-phone .phone{width:min(280px,100%)}
@media(max-width:860px){.walk{grid-template-columns:1fr;gap:0}.walk-phone{display:none}.wstep{min-height:0;opacity:1;padding:22px 0 22px 22px}}

/* ekran galerisi */
.shots{display:flex;gap:22px;overflow-x:auto;padding:10px 20px 34px;margin-inline:-20px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.shots .phone{flex:0 0 auto;width:196px;scroll-snap-align:center}
.shots figure{margin:0;flex:0 0 auto;scroll-snap-align:center;text-align:center}
.shots figcaption{margin-top:14px;color:var(--mut);font-size:14px}
.shots .phone .screen img{opacity:1;transform:none}

/* ayrılmış bölümler: kitap + gizlilik */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.split .phone{margin-inline:auto}
.split .phone .screen img{opacity:1;transform:none}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:34px}}
.checks{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;color:var(--fg)}
.checks li::before{content:"";flex:0 0 20px;height:20px;margin-top:3px;border-radius:50%;border:1px solid var(--plat);background:radial-gradient(circle,var(--plat) 0 3px,transparent 4px)}
.pledge{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:6px 0 30px}
.pledge div{border:1px solid var(--line);border-radius:18px;padding:18px 18px 16px;background:var(--card)}
.pledge b{display:block;font-family:var(--serif);font-weight:400;font-size:25px;margin-bottom:4px}
.pledge span{color:var(--mut);font-size:14px;line-height:1.5;display:block}
@media(max-width:900px){.pledge{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.pledge{grid-template-columns:1fr}}
.links{display:flex;flex-wrap:wrap;gap:10px}
.links a{text-decoration:none;border:1px solid var(--line);border-radius:99px;padding:9px 16px;font-size:14px;background:var(--card);transition:.2s}
.links a:hover{border-color:var(--plat)}

/* SSS + kaynaklar */
details{border-bottom:1px solid var(--line);padding:18px 2px}
details summary{cursor:pointer;font-family:var(--serif);font-size:22px;list-style:none;display:flex;justify-content:space-between;gap:14px}
details summary::after{content:"+";color:var(--plat);font-family:var(--sans)}
details[open] summary::after{content:"–"}
details p{color:var(--mut);margin:12px 0 0;max-width:720px}
.credits{color:var(--mut);font-size:14px;max-width:820px}
.credits a{color:var(--fg)}

/* ---- alt bilgi ---- */
footer{border-top:1px solid var(--line);padding:46px 0 60px;color:var(--mut);font-size:14px}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px}
footer h4{margin:0 0 12px;color:var(--fg);font:600 13px var(--sans);letter-spacing:.12em;text-transform:uppercase}
footer a{display:block;text-decoration:none;margin:7px 0}
footer a:hover{color:var(--fg)}
footer .copy{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media(max-width:800px){footer .cols{grid-template-columns:1fr 1fr}}

/* ---- yasal sayfalar ---- */
main.doc{padding:48px 0 70px;max-width:780px}
main.doc h1{font-size:clamp(34px,5vw,54px);margin-bottom:8px}
main.doc h2{font-size:26px;margin:38px 0 10px;padding-top:22px;border-top:1px solid var(--line)}
main.doc p,main.doc li{color:var(--fg)}
main.doc .mut,.mut{color:var(--mut);font-size:14px}
main.doc ul,main.doc ol{padding-left:22px}
main.doc li{margin:6px 0}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14.5px;display:block;overflow-x:auto}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
th{background:var(--card);font-weight:600}
.note{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;font-size:14.5px}
.center{min-height:70vh;display:grid;place-items:center;text-align:center;padding:40px 0}
.center .mark{width:56px;height:56px;border-radius:16px;margin-bottom:22px}

/* ---- hareket ---- */
.rv{opacity:0;transform:translateY(14px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.grid3 .card:nth-child(3n+2){transition-delay:.07s}.grid3 .card:nth-child(3n){transition-delay:.14s}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}html{scroll-behavior:auto}}
.noscript .rv{opacity:1;transform:none}

/* tablet çerçevesi (dikey, 10" oranı) */
.tabhead{font-family:var(--serif);font-weight:400;font-size:28px;margin:46px 0 4px}
.tablet{position:relative;width:min(300px,64vw);aspect-ratio:10/16;border-radius:26px;padding:10px;background:linear-gradient(145deg,#3a3d44,#0d0e11 45%,#2a2c32);box-shadow:var(--shadow)}
.tablet .screen{position:relative;width:100%;height:100%;border-radius:18px;overflow:hidden;background:#000}
.tablet .screen img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.shots.tabs .tablet{flex:0 0 auto;scroll-snap-align:center}