/* Mercek tanıtım sitesi. Kağıt üstüne mürekkep, tek sinyal rengi kehribar.
   Kaynak renkleri: mavi öğretmen, kehribar karne, mor harita. Sistem teması.
   Kural: bölüm üstü etiket yok, kutu içinde metin yok. Görsel ve tipografi taşır. */
:root{
  --paper:#FBF7EF;--paper-2:#F3EDE1;--paper-3:#E9E1D0;--ink:#17150F;--ink-2:#4A4538;--ink-3:#7A7361;--line:#E6DECB;--line-2:#D5CBB4;
  --amber:#E39A2E;--amber-ink:#8A5A0F;--amber-bg:#FBEBD0;--amber-line:#F0D3A0;
  --blue:#1F4A66;--blue-bg:#DCE9F2;--mor:#4A3E7A;--mor-bg:#E6E0F5;--green:#2E7D4F;
  --golge:23,21,15;--pil-bg:rgba(251,247,239,.82);--kart:#fff;--egri:cubic-bezier(.23,1,.32,1);--r:16px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#121110;--paper-2:#1B1915;--paper-3:#26221C;--ink:#F1ECE0;--ink-2:#C8C1B1;--ink-3:#8E8779;--line:#2E2A24;--line-2:#3B362E;
    --amber:#E39A2E;--amber-ink:#E8A94A;--amber-bg:#2E2413;--amber-line:#5A4419;
    --blue:#8FB8D6;--blue-bg:#1B2731;--mor:#B3A4E6;--mor-bg:#26223A;--green:#6CBF8C;
    --golge:0,0,0;--pil-bg:rgba(18,17,16,.82);--kart:#1B1915;
    color-scheme:dark;
  }
  .koyu{display:inline-block!important}.acik{display:none!important}
  .gorsel img,.tile img,.cerceve img{filter:brightness(.92)}
}
.koyu{display:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper);scroll-padding-top:104px}
@media (max-width:820px){html{scroll-padding-top:84px}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Manrope,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--amber-ink)}
b,strong{font-weight:700}
.kap{max-width:1100px;margin:0 auto;padding:0 40px}
.dar{max-width:760px}
section,section.kap{padding-top:120px}
h1,h2,h3{margin:0;letter-spacing:-.03em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(40px,6.2vw,72px);font-weight:800;letter-spacing:-.045em;line-height:1}
h1 em{font-style:normal;color:var(--amber-ink)}
h2{font-size:clamp(30px,4vw,48px);font-weight:800;margin:0 0 16px;letter-spacing:-.04em}
h3{font-size:20px;font-weight:700;margin:0 0 6px;letter-spacing:-.02em}
p{margin:0 0 12px}
.lede{font-size:clamp(17px,1.6vw,20px);color:var(--ink-2);max-width:620px;margin:20px auto 28px;line-height:1.5}
.not{font-size:14px;color:var(--ink-3);margin:12px 0 0}
.orta{text-align:center}
.bas{max-width:720px;margin:0 auto 44px;text-align:center}
.bas p{font-size:17px;color:var(--ink-2);margin:0}
.row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:12px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);font-weight:700;font-size:15px;text-decoration:none;white-space:nowrap;transition:transform .12s var(--egri),background .2s var(--egri),border-color .2s var(--egri)}
.btn:hover{background:var(--ink-2);border-color:var(--ink-2)}
.btn:active{transform:scale(.97)}
.btn.sec{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn.sec:hover{background:var(--paper-2);border-color:var(--ink)}
.btn.buyuk{height:52px;padding:0 26px;font-size:16px}

/* Üst çubuk: ortada yüzen kapsül, arkasında kağıt renginde perde */
.perde{position:fixed;top:0;left:0;right:0;height:96px;z-index:49;pointer-events:none;background:linear-gradient(var(--paper) 30%,rgba(251,247,239,0))}
@media (prefers-color-scheme:dark){.perde{background:linear-gradient(var(--paper) 30%,rgba(18,17,16,0))}}
.ust{position:fixed;top:14px;left:0;right:0;z-index:50;padding:0 16px;pointer-events:none}
.pil{pointer-events:auto;max-width:940px;margin:0 auto;display:flex;align-items:center;gap:8px;height:60px;padding:0 10px 0 16px;background:var(--pil-bg);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border:1px solid var(--line);border-radius:20px;box-shadow:0 12px 34px rgba(var(--golge),.10);transition:height .2s var(--egri),max-width .2s var(--egri)}
.ust.kucuk .pil{height:52px;max-width:840px}
.pil .marka{display:flex;align-items:center;flex:none}
.pil img{height:38px;width:auto;transition:height .2s var(--egri)}
.ust.kucuk .pil img{height:30px}
.pil nav{display:flex;gap:0;margin:0 auto}
.pil nav a{text-decoration:none;font-weight:600;font-size:14px;color:var(--ink-2);padding:7px 12px;border-radius:9px;white-space:nowrap}
.pil nav a:hover{background:var(--paper-2);color:var(--ink)}
.pil .sag{display:flex;gap:8px;align-items:center;margin-left:auto;flex:none}
.pil .btn{height:38px;padding:0 14px;font-size:14px;border-radius:10px}
.menu{display:none;position:relative}
.menu summary{list-style:none;cursor:pointer;width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line-2)}
.menu summary::-webkit-details-marker{display:none}
.menu svg{width:20px;height:20px;stroke:var(--ink);stroke-width:2;fill:none;stroke-linecap:round}
.menu .liste{position:absolute;right:0;top:46px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:8px;min-width:220px;box-shadow:0 18px 50px rgba(var(--golge),.18);display:flex;flex-direction:column}
.menu .liste a{padding:10px 12px;text-decoration:none;color:var(--ink);font-weight:600;border-radius:9px}
.menu .liste a:hover{background:var(--paper-2)}
#ustGozcu{position:absolute;top:0;height:120px;width:1px}
@media (prefers-reduced-motion:reduce){.pil,.pil img,.btn{transition:none}}

/* Kahraman */
.kahraman,section.kahraman{text-align:center;padding-top:160px}
.kahraman .kicker{font-size:15px;font-weight:600;color:var(--ink-3);margin:0 0 20px}
.kahraman .sinav{font-size:clamp(19px,2.2vw,24px);font-weight:800;letter-spacing:-.02em;color:var(--ink);margin:-6px 0 26px}
.kahraman .sinav b{color:var(--amber-ink)}
.kahraman .row{margin-top:4px}
.kahraman .not{margin-top:16px}
/* Kanıt zinciri: kutusuz, tek satır akış */
.zincir{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:nowrap;max-width:1060px;margin:44px auto 0;font-size:14px}
.zincir .adim{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);white-space:nowrap}
.zincir .adim b{color:var(--ink);font-weight:700}
.zincir .adim.k{background:var(--amber-bg);color:var(--amber-ink)}
.zincir .adim.k b{color:var(--amber-ink)}
.zincir .adim.son{background:var(--ink);color:var(--paper)}
.zincir .adim.son b{color:var(--paper)}
.zincir .ok{color:var(--line-2);font-size:18px}
.cerceve{max-width:1040px;margin:40px auto 0;border:1px solid var(--line);border-radius:var(--r);background:var(--kart);box-shadow:0 40px 90px -30px rgba(var(--golge),.35);overflow:hidden}
.cubuk{display:flex;align-items:center;gap:6px;padding:12px 14px;border-bottom:1px solid var(--line);background:var(--paper-2)}
.cubuk i{width:11px;height:11px;border-radius:50%;background:var(--line-2);display:block}
.cubuk span{margin-left:10px;font-size:12px;color:var(--ink-3);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:3px 10px}
.altyazi{max-width:640px;margin:18px auto 0;font-size:15px;color:var(--ink-2);text-align:center}

/* Görsel ağırlıklı bölüm: metin solda, ürün kırpımı sağda */
.ikili{display:grid;grid-template-columns:1fr 1.25fr;gap:48px;align-items:center}
.ikili.ters{grid-template-columns:1.25fr 1fr}
.ikili.ters>div:first-child{order:2}
.ikili p{font-size:16px;color:var(--ink-2)}
.gorsel{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 70px -30px rgba(var(--golge),.35);background:var(--kart)}
.gorsel.sade{border:0;box-shadow:none;background:transparent}

/* Özellikler: her satır metin ve ürün kırpımı, sırayla sağ ve sol */
.ozellikler{display:flex;flex-direction:column;gap:88px;margin-top:64px}
.ozellikler .ikili{gap:56px}
.ozellikler h3{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.03em;line-height:1.12;margin-bottom:12px}
.ozellikler p{font-size:16px;color:var(--ink-2);max-width:460px}
.ikili .gorsel img{width:100%;display:block}

/* Nasıl çalışır: numaralı satırlar */
.adimlar{max-width:860px;margin:0 auto}
.adimk{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:26px 0;border-top:1px solid var(--line)}
.adimk:last-child{border-bottom:1px solid var(--line)}
.adimk .no{font-size:34px;font-weight:800;color:var(--amber-ink);letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.adimk p{font-size:16px;color:var(--ink-2);margin:0;max-width:640px}

/* Neden: büyük ifadeler, çizgili */
.neden{max-width:900px;margin:0 auto}
.neden div{display:grid;grid-template-columns:1fr 1.4fr;gap:24px;padding:26px 0;border-top:1px solid var(--line)}
.neden div:last-child{border-bottom:1px solid var(--line)}
.neden b{font-size:22px;letter-spacing:-.03em;line-height:1.2;font-weight:800}
.neden p{font-size:16px;color:var(--ink-2);margin:0}

/* Görünümler */
.gorunumler div{padding:16px 0;border-top:1px solid var(--line)}
.gorunumler div:last-child{border-bottom:1px solid var(--line)}
.gorunumler b{display:block;font-size:17px;letter-spacing:-.02em;margin-bottom:4px}
.gorunumler p{font-size:15px;color:var(--ink-2);margin:0}

/* Canlı demo */
.demo{background:#17150F;color:#FBF7EF;padding:96px 0 104px;margin-top:120px}
.demo h2{color:#FBF7EF}
.demo .bas{margin-bottom:28px}
.demo .bas p{color:rgba(255,255,255,.7)}
.demo .bas p{max-width:620px;margin:0 auto;font-size:17px}
.demo .bas p b{color:#FBF7EF}
.demo .btn.sec{color:#FBF7EF;border-color:rgba(255,255,255,.28)}
.demo .btn.sec:hover{background:rgba(255,255,255,.08);border-color:#FBF7EF}
.demo .not{color:rgba(255,255,255,.62)}
.demo .cerceve{position:relative;border-color:rgba(255,255,255,.14);box-shadow:0 40px 100px rgba(0,0,0,.45);background:#FBF7EF;max-width:1100px}
.demo .cubuk{background:#F3EDE1;border-color:#E6DECB}
.demo .cubuk span{color:#7A7361;background:#FBF7EF;border-color:#E6DECB}
.demo iframe{width:100%;height:720px;border:0;display:block;background:#F3EDE0}
.demo .ortu{position:absolute;inset:44px 0 0;background:rgba(23,21,15,.12);border:0;cursor:pointer;display:flex;align-items:center;justify-content:center}
.demo .ortu span{background:var(--ink);color:var(--paper);font:inherit;font-weight:700;font-size:16px;padding:14px 26px;border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.35)}
.demo .mobil{display:none;text-align:center;padding:0 24px}
.demo .mobil p{color:rgba(255,255,255,.7);font-size:14px}
.demo .mobil .btn{background:#FBF7EF;color:#17150F;border-color:#FBF7EF}
@media (prefers-color-scheme:dark){.demo{background:#0C0B0A}.demo .cerceve{border-color:var(--line)}}

/* Kimin için: üç sütun, çizgili */
.kimin{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.kimin div{border-top:2px solid var(--ink);padding-top:16px}
.kimin b{display:block;font-size:18px;letter-spacing:-.02em;margin-bottom:6px}
.kimin p{margin:0;font-size:15px;color:var(--ink-2)}

/* Paketler: dört sütun, dikey çizgiler, kutu yok */
.fiyat{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.paket{padding:28px 24px 28px 0;margin-right:24px;border-right:1px solid var(--line);display:flex;flex-direction:column}
.paket:last-child{border-right:0;margin-right:0;padding-right:0}
.paket .ad{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:10px}
.paket .tutar{font-size:34px;font-weight:800;letter-spacing:-.04em;line-height:1}
.paket .tutar small{display:block;font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:0;margin-top:6px}
.paket .pa{font-size:14px;color:var(--ink-2);margin:14px 0 6px}
.paket ul{padding-left:18px;margin:6px 0 20px;font-size:14px;color:var(--ink-2);flex:1}
.paket li{margin:4px 0}
.paket .btn{width:100%}
.paket.one .ad{color:var(--amber-ink)}
.paket.kurum .tutar{font-size:22px;line-height:1.2;letter-spacing:-.02em}

/* SSS */
.sss{max-width:820px;margin:0 auto}
.sss details{border-top:1px solid var(--line);padding:18px 0}
.sss details:last-child{border-bottom:1px solid var(--line)}
.sss summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;letter-spacing:-.01em}
.sss summary::-webkit-details-marker{display:none}
.sss summary::after{content:"+";font-size:22px;color:var(--ink-3);font-weight:500;flex:none;line-height:1}
.sss details[open] summary::after{content:"–"}
.sss p{margin:10px 0 0;color:var(--ink-2);font-size:15px;max-width:720px}

/* Kapanış ve altbilgi */
.kapanis{text-align:center;padding-bottom:40px}
.kapanis .lede{margin-top:14px}
.kapanis .not{margin-top:14px}
footer{border-top:1px solid var(--line);margin-top:96px;padding:44px 0 40px;font-size:13.5px;color:var(--ink-3)}
footer .kap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px 40px;align-items:start}
footer .fmarka img{height:34px;width:auto;margin-bottom:12px}
footer .fmarka p{margin:0;line-height:1.6;max-width:340px}
footer h4{margin:0 0 10px;font-size:13px;font-weight:700;color:var(--ink);letter-spacing:0}
footer nav{display:flex;flex-direction:column;gap:8px}
footer a{text-decoration:none;color:var(--ink-2)}
footer a:hover{color:var(--ink)}
footer .alt{grid-column:1 / -1;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px;margin-top:8px}
footer .iyzico-bant{height:22px;width:auto;opacity:.8}

/* Kurum sayfası: başlıkta tek renk logo, formun yanında düz satırlar */
.kurum-bas{display:flex;align-items:center;justify-content:center;gap:.28em;flex-wrap:wrap;font-size:clamp(30px,5vw,54px);line-height:1.05}
.kurum-bas img{height:1.08em;width:auto;display:block}
@media (max-width:620px){.kurum-bas{flex-direction:column;gap:.1em}.kurum-bas img{height:1.25em}}
.kiyi .gorunumler div{padding:12px 0}
.kiyi .gorunumler b{font-size:16px}
.kiyi .gorunumler p{font-size:14.5px}
form.teklif .onay{grid-column:1 / -1;display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);line-height:1.45;cursor:pointer}
form.teklif .onay input{margin:3px 0 0;width:16px;height:16px;flex:none;accent-color:var(--ink)}

/* Kurum sayfası formu */
.form-kap{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start;margin-top:40px}
.form-kap .kiyi p{font-size:16px;color:var(--ink-2)}
form.teklif{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
form.teklif .tam{grid-column:1 / -1}
form.teklif label{display:block;font-size:13px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
form.teklif input,form.teklif select,form.teklif textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:var(--kart);border:1px solid var(--line-2);border-radius:10px;padding:10px 12px;outline:none}
form.teklif input:focus,form.teklif select:focus,form.teklif textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px var(--amber-bg)}
form.teklif textarea{min-height:110px;resize:vertical}
form.teklif .btn{height:48px}
form.teklif .durum{grid-column:1 / -1;font-size:14px;color:var(--ink-2);min-height:20px}
form.teklif .durum.ok{color:var(--green);font-weight:700}
form.teklif .durum.hata{color:#B3372B;font-weight:700}
.bal{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Dar ekranlar */
@media (max-width:1100px){.zincir{flex-wrap:wrap;row-gap:10px}}
@media (max-width:1000px){
  .fiyat{grid-template-columns:1fr 1fr;column-gap:56px}
  .paket{border-right:0;margin-right:0;padding-right:0;border-top:1px solid var(--line)}
  .paket:first-child,.paket:nth-child(2){border-top:0}
}
@media (max-width:820px){
  .kap{padding:0 24px}
  section,section.kap{padding-top:88px}
  .kahraman,section.kahraman{padding-top:128px}
  .zincir{flex-wrap:wrap}
  .ikili,.ikili.ters{grid-template-columns:1fr;gap:24px}
  .ikili.ters>div:first-child{order:0}
  .kimin{grid-template-columns:1fr}
  .ozellikler{gap:56px;margin-top:40px}
  .ozellikler .ikili{gap:20px}
  .neden div{grid-template-columns:1fr;gap:6px}
  .adimk{grid-template-columns:48px 1fr;gap:14px}
  .adimk .no{font-size:26px}
  .pil nav{display:none}
  .pil{height:56px;padding-left:14px}
  .pil img{height:32px}
  .pil .btn.sec{display:none}
  .menu{display:block}
  .demo{padding:64px 0 48px;margin-top:88px}
  .demo .cerceve{display:none}
  .demo .mobil{display:block}
  footer .kap{grid-template-columns:1fr 1fr}
  footer .fmarka{grid-column:1 / -1}
  .form-kap{grid-template-columns:1fr;gap:28px}
}
@media (max-width:560px){
  .fiyat{grid-template-columns:1fr}
  .paket:nth-child(2){border-top:1px solid var(--line)}
  .zincir{flex-direction:column;align-items:stretch}
  .zincir .ok{display:none}
  .row .btn{flex:1 1 100%}
  form.teklif{grid-template-columns:1fr}
  footer .kap{grid-template-columns:1fr}
  h1{font-size:clamp(34px,10vw,44px)}
}