/* ══════════════════════════════════════════════════════════════════════════
   ContraCORE — www.contracoreapp.com
   Acik tema · blurlu belge dokulu zemin · yandan kayarak gelen moduller
   Kaydirmaya bagli sahne/zum mekanizmasi KALDIRILDI (kullanici karari).
   ══════════════════════════════════════════════════════════════════════════ */

:root{
  --kagit:#f5f8fc;
  --beyaz:#ffffff;
  --yuzey:#eef3fa;
  --cizgi:#dbe4f0;
  --cizgi-koyu:#c7d4e6;

  --lacivert:#12325c;
  --mavi:#1f63c8;
  --mavi-koyu:#164a99;
  --mavi-acik:#e8f0fc;
  --camgobegi:#12958c;

  --metin:#16293f;
  --metin-2:#4a5f7a;
  --metin-3:#7488a3;

  --r-s:9px; --r-m:16px; --r-l:24px; --r-full:999px;
  --expo:cubic-bezier(.16,1,.3,1);
  --yumusak:cubic-bezier(.4,0,.2,1);
  --bosluk:clamp(20px,5vw,56px);
  --golge:0 18px 44px -22px rgba(18,50,92,.32);
  --golge-buyuk:0 30px 70px -30px rgba(18,50,92,.42);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--kagit);color:var(--metin);
  font-family:Inter,system-ui,"Segoe UI",sans-serif;font-size:16.5px;line-height:1.62;
  -webkit-font-smoothing:antialiased;overflow-x:clip;
}
img,svg{display:block;max-width:100%}
a{color:var(--mavi-koyu)}
h1,h2,h3,h4{font-family:Archivo,Inter,sans-serif;margin:0;line-height:1.06;
  letter-spacing:-.03em;color:var(--lacivert)}
h1{font-size:clamp(2.3rem,6vw,4.4rem);font-weight:900}
h2{font-size:clamp(1.8rem,4vw,2.9rem);font-weight:800}
h3{font-size:clamp(1.25rem,2.3vw,1.7rem);font-weight:700}
h4{font-size:1.04rem;font-weight:700;letter-spacing:-.015em}
p{margin:0 0 1em}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:1240px;margin-inline:auto;padding-inline:var(--bosluk)}
.wrap-dar{max-width:900px}

/* ── Blurlu doku zeminler ──────────────────────────────────────────────────
   Gorseller muhasebe masasini andiran soyut bir kompozisyondan uretildi
   (telifsiz, kendi urettigimiz). Uzerine acik bir ortu koyulur ki metin
   her zaman okunur kalsin.                                                 */
.dokulu{position:relative;isolation:isolate}
.dokulu::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:var(--doku);background-size:cover;background-position:center;
}
.dokulu::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(245,248,252,.55),rgba(245,248,252,.78));
}
.doku-1{--doku:url("../img/zemin/doku-1.webp")}
.doku-2{--doku:url("../img/zemin/doku-2.webp")}
.doku-3{--doku:url("../img/zemin/doku-3.webp")}

/* Koyu bant: ayni doku, lacivert ortu */
.koyu{color:#eaf1fb}
.koyu::after{background:linear-gradient(180deg,rgba(14,32,58,.93),rgba(11,26,48,.96))}
.koyu h1,.koyu h2,.koyu h3,.koyu h4{color:#fff}
.koyu p{color:#b9cbe4}
.koyu a{color:#9cc4fa}

.oku{position:fixed;top:0;left:0;height:2px;z-index:60;width:100%;
  background:linear-gradient(90deg,var(--mavi),var(--camgobegi));
  transform:scaleX(0);transform-origin:left;will-change:transform}

/* ── Ust bar ───────────────────────────────────────────────────────────── */
.ustbar{position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(255,255,255,.93);border-bottom:1px solid var(--cizgi);
  transition:box-shadow .3s var(--yumusak)}
.ustbar.derin{box-shadow:0 6px 24px -14px rgba(18,50,92,.5)}
.ustbar-ic{display:flex;align-items:center;gap:18px;height:64px;
  max-width:1240px;margin-inline:auto;padding-inline:var(--bosluk)}
.marka{display:flex;align-items:center;gap:9px;text-decoration:none;flex:none}
.marka-logo{width:30px;height:30px;border-radius:7px;flex:none}
.marka-ad{font-family:Archivo,Inter,sans-serif;font-weight:900;font-size:1.12rem;
  letter-spacing:-.045em;color:var(--lacivert);white-space:nowrap;line-height:1}
.marka-ad b{color:var(--mavi);font-weight:900;letter-spacing:-.03em}
.menu{margin-left:auto;display:flex;gap:2px}
.menu a{text-decoration:none;font-size:.9rem;font-weight:500;color:var(--metin-2);
  padding:9px 13px;border-radius:var(--r-s);
  transition:color .2s var(--yumusak),background-color .2s var(--yumusak)}
.menu a:hover{color:var(--lacivert);background:var(--mavi-acik)}
.menu a[aria-current="page"]{color:var(--mavi)}
.ust-dg{display:flex;align-items:center;gap:10px;flex:none}

.menu-dg{display:none;width:44px;height:44px;margin-left:auto;align-items:center;
  justify-content:center;background:transparent;border:1px solid var(--cizgi-koyu);
  border-radius:var(--r-s);color:var(--lacivert);cursor:pointer}
.menu-dg span{display:block;width:17px;height:1.7px;background:currentColor;position:relative}
.menu-dg span::before,.menu-dg span::after{content:"";position:absolute;left:0;width:17px;
  height:1.7px;background:currentColor;transition:transform .25s var(--expo),top .25s var(--expo)}
.menu-dg span::before{top:-5.5px}.menu-dg span::after{top:5.5px}
.menu-dg[aria-expanded="true"] span{background:transparent}
.menu-dg[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.menu-dg[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

@media(max-width:940px){
  .menu-dg{display:inline-flex}
  .menu{position:fixed;inset:64px 0 auto 0;display:grid;gap:2px;margin:0;
    padding:14px var(--bosluk) 22px;background:#fff;
    border-bottom:1px solid var(--cizgi);box-shadow:var(--golge);
    transform:translate3d(0,-14px,0);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .25s var(--expo),transform .25s var(--expo),visibility 0s linear .25s;
    max-height:calc(100dvh - 64px);overflow-y:auto}
  .menu.acik{transform:none;opacity:1;visibility:visible;pointer-events:auto;
    transition:opacity .25s var(--expo),transform .25s var(--expo),visibility 0s linear 0s}
  .menu a{padding:14px 12px;font-size:1.04rem;min-height:48px;display:flex;align-items:center}
  .ust-dg .dg{padding:0 17px;font-size:.88rem;min-height:42px}
}

/* ── Buton ─────────────────────────────────────────────────────────────── */
.dg{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:0 26px;border:1px solid transparent;border-radius:var(--r-full);
  font:600 .97rem/1 Inter,sans-serif;text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--expo),background-color .22s var(--yumusak),
             box-shadow .3s var(--yumusak),border-color .22s var(--yumusak),color .22s var(--yumusak)}
.dg:active{transform:scale(.97)}
.dg-ana{background:var(--mavi);color:#fff}
.dg-ana:hover{background:var(--mavi-koyu);box-shadow:0 12px 34px -14px rgba(31,99,200,.9)}
.dg-hat{border-color:var(--cizgi-koyu);color:var(--lacivert);background:rgba(255,255,255,.72)}
.dg-hat:hover{border-color:var(--mavi);color:var(--mavi)}
.koyu .dg-hat{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.06)}
.koyu .dg-hat:hover{border-color:#9cc4fa;color:#9cc4fa}
.dg-buyuk{min-height:56px;padding:0 32px;font-size:1.03rem}
.dg svg{width:17px;height:17px;flex:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,
select:focus-visible,summary:focus-visible{outline:2px solid var(--mavi);outline-offset:3px;
  border-radius:var(--r-s)}

/* ── Etiket ────────────────────────────────────────────────────────────── */
.etiket{display:inline-flex;align-items:center;gap:9px;
  font-family:Archivo;font-size:.71rem;font-weight:650;letter-spacing:.18em;
  text-transform:uppercase;color:var(--mavi-koyu);
  padding:7px 14px;border-radius:var(--r-full);
  background:var(--mavi-acik);border:1px solid #cfe0f8}
.koyu .etiket{color:#9cc4fa;background:rgba(156,196,250,.12);border-color:rgba(156,196,250,.28)}
.etiket i{width:6px;height:6px;border-radius:50%;background:var(--camgobegi)}

/* ── Bolum basliklari ──────────────────────────────────────────────────── */
.bolum{padding-block:clamp(72px,9vw,128px)}
.bolum-dar{padding-block:clamp(52px,6.5vw,88px)}
.bas{max-width:64ch}
.bas h2{margin:18px 0 0}
.bas p{color:var(--metin-2);font-size:clamp(1rem,1.6vw,1.14rem);margin-top:18px}
.koyu .bas p{color:#b9cbe4}
.orta{text-align:center;margin-inline:auto}
.orta p{margin-inline:auto}

/* ── Kart ──────────────────────────────────────────────────────────────── */
.kart{background:var(--beyaz);border:1px solid var(--cizgi);border-radius:var(--r-m);
  padding:26px 24px 28px;box-shadow:var(--golge);
  transition:transform .35s var(--expo),box-shadow .35s var(--yumusak)}
.kart:hover{transform:translateY(-4px);box-shadow:var(--golge-buyuk)}
.kart .no{font-family:"JetBrains Mono";font-size:.74rem;color:var(--mavi);
  display:block;margin-bottom:12px;letter-spacing:.06em}
.kart h3,.kart h4{margin-bottom:9px}
.kart p{margin:0;color:var(--metin-2);font-size:.93rem;line-height:1.55}
.uclu{display:grid;gap:16px}
@media(min-width:820px){.uclu{grid-template-columns:repeat(3,1fr)}}
.ikili{display:grid;gap:16px}
@media(min-width:760px){.ikili{grid-template-columns:1fr 1fr}}

/* ── Ozellik listesi ───────────────────────────────────────────────────── */
.ozl{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.ozl li{display:grid;grid-template-columns:21px 1fr;gap:13px;align-items:start}
.ozl svg{width:17px;height:17px;margin-top:4px;color:var(--camgobegi)}
.ozl b{display:block;font-weight:640;font-size:.97rem;color:var(--lacivert);margin-bottom:2px}
.ozl span{font-size:.91rem;color:var(--metin-2);line-height:1.5}
.koyu .ozl b{color:#fff}.koyu .ozl span{color:#b9cbe4}

/* ══ MODÜL BLOKLARI — yandan kayarak gelir ════════════════════════════════ */
.modul{display:grid;gap:30px;align-items:center}
@media(min-width:1000px){
  .modul{grid-template-columns:.92fr 1.08fr;gap:56px}
  .modul.ters .modul-metin{order:2}
  .modul.ters .modul-ekran{order:1}
}
.modul + .modul{margin-top:clamp(64px,9vw,116px)}
.modul-no{font-family:"JetBrains Mono";font-size:.78rem;color:var(--mavi);
  letter-spacing:.1em;display:block;margin-bottom:10px}
.modul h3{margin-bottom:13px}
.modul-lead{color:var(--metin-2);margin-bottom:20px}

.modul-ekran{position:relative;border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--cizgi);background:#fff;box-shadow:var(--golge-buyuk)}
.modul-ekran img{width:100%;max-height:430px;object-fit:cover;object-position:top center}
.modul-cubuk{display:flex;align-items:center;gap:6px;height:32px;padding-inline:13px;
  background:var(--yuzey);border-bottom:1px solid var(--cizgi)}
.modul-cubuk i{width:8px;height:8px;border-radius:50%;background:var(--cizgi-koyu)}
.modul-cubuk b{margin-left:6px;font:500 .73rem Inter,sans-serif;color:var(--metin-3)}

/* Kayarak giris — JS oncesi baslangic durumu */
.kay-sol{opacity:0;transform:translate3d(-56px,0,0)}
.kay-sag{opacity:0;transform:translate3d(56px,0,0)}
.kay-ust{opacity:0;transform:translate3d(0,26px,0)}
html.no-js .kay-sol,html.no-js .kay-sag,html.no-js .kay-ust,
html.duz .kay-sol,html.duz .kay-sag,html.duz .kay-ust{opacity:1;transform:none}
@media(max-width:780px){
  /* Dar ekranda yatay kayma yok: hem sarsintili duruyor hem de oge gecici
     olarak viewport disina tasip yatay kaydirma cubugu olusturuyordu. */
  .kay-sol,.kay-sag{transform:translate3d(0,20px,0)}
}
@media(prefers-reduced-motion:reduce){
  .kay-sol,.kay-sag,.kay-ust{opacity:1!important;transform:none!important}
}

/* ── Alt bilgi ─────────────────────────────────────────────────────────── */
.alt{background:var(--lacivert);color:#cddcef;padding-block:54px 30px}
.alt .marka-ad{color:#fff}
.alt .marka-ad b{color:#9cc4fa}
.alt-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:38px}
@media(max-width:900px){.alt-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:560px){.alt-grid{grid-template-columns:1fr;gap:24px}}
.alt h4{font-family:Archivo;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:#8fa8c8;margin-bottom:14px}
.alt ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.alt a{color:#cddcef;text-decoration:none;font-size:.92rem;transition:color .2s var(--yumusak)}
.alt a:hover{color:#fff}
.alt-taban{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:.85rem;color:#8fa8c8}

/* ── Kelime kelime baslik ──────────────────────────────────────────────── */
.kelime{display:inline-block;overflow:hidden;vertical-align:bottom;
  padding-bottom:.09em;margin-bottom:-.09em}
.kelime > span{display:inline-block;transform:translateY(105%);will-change:transform}
html.no-js .kelime > span,html.duz .kelime > span{transform:none}
.vurgu,.vurgu .kelime > span{
  background:linear-gradient(100deg,var(--mavi),var(--camgobegi));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.vurgu:has(.kelime){background:none}