/* WebLibrary — tanıtım sayfası
   ------------------------------------------------------------------------
   Koyu bir giriş (3B bağlantı küresi + gerçek uygulama ekranlı 3B telefon),
   ardından açık ve sakin bölümler. Renkler logodan: koyu teal, zümrüt
   yeşili, tek vurgu olarak amber.

   Yazı tipi sistem yığınından: gizlilik iddiası olan bir sayfanın her
   açılışta yazı tipi sunucusuna istek atması tutarsız olurdu.

   CSP style-src 'self': satır içi style="" yok. Gecikmeler data-d ile
   geliyor, landing.js CSSOM üzerinden --d olarak yazıyor.

   Hareket: yalnızca transform ve opacity (GPU). prefers-reduced-motion
   açıkken her şey yerinde ve görünür, hiçbir şey dönmüyor. */

:root {
  --ink: #071F27;
  --deep: #06171D;
  --deep-2: #0A2A33;
  --teal: #0D3B4A;
  --em: #2FA37A;
  --em-deep: #1F7355;
  --em-dark: #175B43;
  --mint: #7BE3BB;
  --amber: #F5A623;
  --paper: #F4F6F5;
  --card: #FFFFFF;
  --muted: #536A72;
  --rule: #E1E8E5;
  --wash: #E9F4EF;

  --hold: 1160px;
  --r: 22px;
  --nav-h: 64px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --shadow-1: 0 1px 2px rgba(7, 31, 39, .05), 0 12px 32px -16px rgba(7, 31, 39, .22);
  --shadow-2: 0 2px 6px rgba(7, 31, 39, .06), 0 30px 60px -28px rgba(7, 31, 39, .35);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

a { color: var(--em-deep); text-underline-offset: 3px; }
img, svg { display: block; }
.ic { flex: 0 0 auto; }

h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.035em; line-height: 1.08; }
p { margin: 0; }

.hold { max-width: var(--hold); margin: 0 auto; padding: 0 24px; }

.skip {
  position: absolute; left: -9999px; z-index: 100;
  padding: 12px 18px; background: var(--ink); color: #fff; border-radius: 0 0 12px 0;
}
.skip:focus { left: 0; top: 0; }

:focus-visible { outline: 2px solid var(--em); outline-offset: 3px; border-radius: 8px; }

/* ---------------------------------------------------------------- düğmeler */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 20px;
  border: 0; border-radius: 999px;
  background: var(--em-deep); color: #fff;
  font: inherit; font-size: 15px; font-weight: 650; letter-spacing: -0.005em;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  box-shadow: 0 2px 6px rgba(7, 31, 39, .14), 0 14px 26px -12px rgba(31, 115, 85, .7);
  transition: transform .18s ease, background-color .18s ease, box-shadow .18s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { background: var(--em-dark); transform: translateY(-1px); }
.btn:active { transform: translateY(1px) scale(.99); }
.btn-lg { height: 52px; padding: 0 24px; font-size: 16px; }
.btn-sm { height: 38px; padding: 0 16px; font-size: 14px; box-shadow: none; }
.btn-ghost {
  background: rgba(255, 255, 255, .06); color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .12); }
.btn-light { background: #fff; color: var(--em-dark); box-shadow: 0 18px 40px -18px rgba(0, 0, 0, .5); }
.btn-light:hover { background: #F2FBF7; }
.btn.is-busy { opacity: .7; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 18px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(123, 227, 187, .1);
  box-shadow: inset 0 0 0 1px rgba(123, 227, 187, .25);
  color: var(--mint);
  font-size: 13px; font-weight: 650; letter-spacing: .02em;
}
.eyebrow-dark { background: var(--wash); box-shadow: none; color: var(--em-deep); }

/* ---------------------------------------------------------- ilerleme çubuğu */

.progress {
  position: fixed; inset: 0 0 auto; z-index: 60;
  height: 3px;
  background: linear-gradient(90deg, var(--em), var(--mint));
  transform-origin: 0 50%;
  transform: scaleX(var(--p, 0));
}

/* ------------------------------------------------------------------ üst şerit */

.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  transition: background-color .25s ease, box-shadow .25s ease;
}
.nav-in {
  max-width: var(--hold); height: var(--nav-h);
  margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 20px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: #fff; text-decoration: none;
  font-weight: 800; font-size: 17px; letter-spacing: -0.02em;
}
.logo-mark { border-radius: 10px; box-shadow: 0 0 0 1px rgba(255, 255, 255, .12); }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
  padding: 8px 12px; border-radius: 999px;
  color: rgba(255, 255, 255, .78); text-decoration: none;
  font-size: 14.5px; font-weight: 600;
  transition: color .2s ease, background-color .2s ease;
}
.nav-links a:hover { color: #fff; background: rgba(255, 255, 255, .08); }
.nav-lang { font-size: 13px !important; letter-spacing: .04em; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px; margin-left: 4px;
  border: 0; border-radius: 12px;
  background: rgba(255, 255, 255, .08); color: #fff; cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute; left: 12px; right: 12px; height: 2px; border-radius: 2px;
  background: currentColor; transition: transform .25s ease, top .25s ease;
}
.nav-toggle span:first-child { top: 15px; }
.nav-toggle span:last-child { top: 23px; }
.nav-toggle[aria-expanded="true"] span:first-child { top: 19px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { top: 19px; transform: rotate(-45deg); }

/* Kaydırınca açık zemin. */
.nav.is-solid {
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 1px 0 rgba(7, 31, 39, .06), 0 10px 30px -20px rgba(7, 31, 39, .3);
}
@supports (backdrop-filter: blur(1px)) {
  .nav.is-solid { background: rgba(255, 255, 255, .72); backdrop-filter: saturate(1.6) blur(18px); }
}
.nav.is-solid .brand { color: var(--ink); }
.nav.is-solid .nav-links a { color: var(--muted); }
.nav.is-solid .nav-links a:hover { color: var(--ink); background: rgba(7, 31, 39, .05); }
.nav.is-solid .nav-toggle { background: rgba(7, 31, 39, .06); color: var(--ink); }

/* -------------------------------------------------------------------- giriş */

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: calc(var(--nav-h) + env(safe-area-inset-top, 0px) + 36px) 0 72px;
  background:
    radial-gradient(70% 60% at 85% 20%, rgba(47, 163, 122, .22), transparent 70%),
    radial-gradient(60% 50% at 10% 100%, rgba(13, 59, 74, .9), transparent 70%),
    linear-gradient(180deg, var(--deep) 0%, var(--deep-2) 100%);
  color: #fff;
}
.orb {
  position: absolute; inset: 0; z-index: -1;
  width: 100%; height: 100%;
  opacity: .9;
}
.hero-glow {
  position: absolute; z-index: -1;
  width: 520px; height: 520px; right: -120px; top: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(123, 227, 187, .18), transparent 65%);
  filter: blur(10px);
  pointer-events: none;
}

.hero-in {
  max-width: var(--hold); margin: 0 auto; padding: 0 24px;
  display: grid; gap: 48px; align-items: center;
  grid-template-columns: minmax(0, 1fr);
}

.hero h1 {
  font-size: clamp(38px, 6.2vw, 70px);
  letter-spacing: -0.045em;
  line-height: 1.02;
  text-wrap: balance;
}
.grad {
  background: linear-gradient(100deg, #FFFFFF 0%, var(--mint) 55%, var(--em) 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.lead {
  max-width: 44ch;
  margin-top: 22px;
  font-size: clamp(16.5px, 1.6vw, 19px);
  color: rgba(255, 255, 255, .74);
}

/* deneme kutusu */
.try {
  max-width: 520px;
  margin-top: 28px;
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .06);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
}
@supports (backdrop-filter: blur(1px)) {
  .try { backdrop-filter: blur(12px); }
}
.try-label { display: block; margin-bottom: 10px; font-size: 14px; font-weight: 600; color: rgba(255, 255, 255, .86); }
.try-row { display: flex; gap: 8px; flex-wrap: wrap; }
.try-row input {
  flex: 1 1 200px; min-width: 0; height: 46px;
  padding: 0 16px;
  border: 0; border-radius: 999px;
  background: rgba(255, 255, 255, .95); color: var(--ink);
  font: inherit; font-size: 16px;
}
.try-row input:focus { outline: 2px solid var(--mint); outline-offset: 2px; }
.try-row .btn { flex: 0 0 auto; }
.try-msg { min-height: 1.4em; margin-top: 8px; font-size: 14px; color: var(--mint); }
.try-msg:empty { display: none; }
.try-msg.is-bad { color: #FFB4A9; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.hero-stats {
  display: flex; gap: 28px; flex-wrap: wrap;
  margin: 32px 0 0; padding: 0; list-style: none;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats b { font-size: 26px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
.hero-stats span { font-size: 13.5px; color: rgba(255, 255, 255, .6); }

/* ------------------------------------------------------------ 3B telefon */

.stage {
  position: relative;
  display: grid; place-items: center;
  perspective: 1600px;
  perspective-origin: 50% 40%;
  min-height: 560px;
}
.stage-in {
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 8deg)) rotateY(var(--ry, -18deg)) rotateZ(var(--rz, 2deg));
  will-change: transform;
}
.stage-shadow {
  position: absolute; left: 50%; bottom: 6px;
  width: 260px; height: 36px; margin-left: -130px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0, 0, 0, .45), transparent);
  filter: blur(6px);
  transform: translateX(calc(var(--ry-n, -0.4) * 30px));
}

.phone {
  --w: 270px;
  position: relative;
  width: var(--w);
  aspect-ratio: 9 / 19;
  transform-style: preserve-3d;
}
.phone-screen, .phone-side {
  position: absolute; inset: 0;
  border-radius: 42px;
}
/* Kalınlık: aynı biçimde, arkada ve koyu bir katman. Döndükçe kenar görünür. */
.phone-side {
  background: linear-gradient(135deg, #2B3B40, #0E1A1E 60%, #24353A);
  transform: translateZ(-14px);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7);
}
.phone-side::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  transform: translateZ(7px);
  background: #131F23;
}
.phone-screen {
  overflow: hidden;
  padding: 30px 12px 0;
  border: 7px solid #0F1A1E;
  background:
    radial-gradient(120% 140px at 0 0, rgba(31, 115, 85, .10), transparent 70%),
    #F4F6F5;
  color: var(--ink);
  font-size: 9.5px; line-height: 1.35;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06), 0 0 0 1px #2A383C;
}
.phone-screen::after {
  /* cam yansıması */
  content: ""; position: absolute; inset: -40% -60% auto auto;
  width: 140%; height: 90%;
  background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, .22) 50%, transparent 60%);
  transform: translateX(var(--shine, 0px));
  pointer-events: none;
}
.p-notch {
  position: absolute; top: 9px; left: 50%;
  width: 76px; height: 18px; margin-left: -38px;
  border-radius: 999px; background: #0F1A1E;
}
.p-head { display: flex; align-items: center; justify-content: space-between; }
.p-head b { font-size: 17px; font-weight: 800; letter-spacing: -0.04em; }
.p-menu {
  display: grid; place-items: center; width: 24px; height: 24px;
  border-radius: 50%; background: #fff; box-shadow: var(--shadow-1);
}
.p-tag { margin: 1px 0 8px; color: #45606A; font-size: 9px; }
.p-search {
  display: flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 4px 0 10px;
  border-radius: 999px; background: #fff; color: #587179;
  box-shadow: 0 1px 2px rgba(10, 42, 51, .05), 0 6px 14px -8px rgba(10, 42, 51, .18);
}
.p-search span:not(.p-filter) { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.p-filter { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: #EFF3F1; }
.p-quick { display: flex; gap: 6px; margin: 9px 0 7px; }
.p-q {
  flex: 1 1 0; min-width: 0;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 6px 2px 5px;
  border-radius: 10px; background: #fff;
  box-shadow: 0 1px 2px rgba(10, 42, 51, .04), 0 4px 10px -6px rgba(10, 42, 51, .14);
  font-size: 7.5px; font-weight: 650;
}
.p-q > span:last-child { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.p-q-logo {
  display: grid; place-items: center; width: 20px; height: 20px;
  border-radius: 6px; font-size: 10px; font-weight: 800; color: #fff;
}
.p-q-logo.c0 { background: #E53935; }
.p-q-logo.c1 { background: #1F2328; }
.p-q-logo.c2 { background: #F59E0B; }
.p-q-logo.c3 { background: #2F62C4; }
.p-q-add .p-q-logo { border: 1px solid #E4EAE8; color: #45606A; border-radius: 50%; }
.p-q-add { color: #587179; }
.p-stats { display: flex; gap: 5px; }
.p-stat {
  flex: 1 1 0; min-width: 0;
  display: flex; align-items: center; gap: 5px;
  padding: 5px 6px; border-radius: 10px; background: #fff;
  box-shadow: 0 1px 2px rgba(10, 42, 51, .04), 0 4px 10px -6px rgba(10, 42, 51, .14);
}
.p-stat b { display: block; font-size: 10.5px; line-height: 1.1; }
.p-stat small { display: block; font-size: 7px; color: #587179; white-space: nowrap; }
.p-stat-ic { display: grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; }
.p-stat.t0 .p-stat-ic { background: rgba(31, 115, 85, .12); color: #1F7355; }
.p-stat.t1 .p-stat-ic { background: rgba(47, 98, 196, .12); color: #2F62C4; }
.p-stat.t2 .p-stat-ic { background: rgba(201, 120, 10, .12); color: #C9780A; }
.p-sec { display: flex; justify-content: space-between; align-items: baseline; margin: 10px 1px 6px; }
.p-sec b { font-size: 10.5px; }
.p-sec span { font-size: 8px; color: #45606A; font-weight: 600; }

/* Raf kartları — site.js yeni kartı en üste ekliyor. */
.shelf-stack { display: flex; flex-direction: column; gap: 5px; }
.tile {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 6px 6px 7px;
  border-radius: 11px; background: #fff;
  box-shadow: 0 1px 2px rgba(10, 42, 51, .04), 0 6px 14px -8px rgba(10, 42, 51, .18);
}
.tile.is-new { animation: drop .7s cubic-bezier(.2, .9, .25, 1.15); }
@keyframes drop {
  from { opacity: 0; transform: translateY(-28px) scale(.92) rotateX(30deg); }
  to   { opacity: 1; transform: none; }
}
.tile-icon {
  flex: 0 0 auto; display: grid; place-items: center;
  width: 28px; height: 28px; overflow: hidden;
  border-radius: 8px; background: #E9F2EE; color: #175B43;
  font-weight: 800; font-size: 12px;
}
.tile-icon img { width: 18px; height: 18px; object-fit: contain; }
.tile-icon img.is-cover { width: 100%; height: 100%; object-fit: cover; }
.tile-body { flex: 1; min-width: 0; }
.tile-body h3 {
  font-size: 9px; font-weight: 700; letter-spacing: -0.01em; line-height: 1.25;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tile-body p {
  display: flex; align-items: center; gap: 4px; margin-top: 1px;
  font-size: 7.5px; color: #45606A; white-space: nowrap; overflow: hidden;
}
.tile-kind {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 1px 4px; border-radius: 999px; font-size: 6.5px; font-weight: 700;
}
.k-yazi  { background: rgba(31, 115, 85, .11); color: #1F7355; }
.k-arac  { background: rgba(69, 96, 106, .11); color: #45606A; }
.k-haber { background: rgba(180, 65, 58, .11); color: #B4413A; }
.k-video { background: rgba(47, 98, 196, .11); color: #2F62C4; }
.tile-mark {
  flex: 0 0 auto; width: 8px; height: 11px; margin-right: 3px;
  border: 1.3px solid #45606A; border-bottom: 0;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 72%, 0 100%);
}
.tile-mark.is-on { background: #C9780A; border-color: #C9780A; }

.p-fab {
  position: absolute; right: 12px; bottom: 50px;
  display: inline-flex; align-items: center; gap: 4px;
  height: 24px; padding: 0 10px 0 8px;
  border-radius: 999px; background: #1F7355; color: #fff;
  font-size: 8px; font-weight: 700;
  box-shadow: 0 8px 16px -8px rgba(31, 115, 85, .8);
}
.p-navbar {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; gap: 3px; padding: 5px 8px 10px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 -1px 0 rgba(10, 42, 51, .05);
}
.p-nav {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 1px;
  padding: 3px 0; border-radius: 9px;
  font-size: 6.5px; font-weight: 700; color: #587179;
}
.p-nav.is-on { background: #E9F2EE; color: #1F7355; }

/* Yüzen kartlar — telefonun önünde, farklı derinliklerde. */
.float {
  position: absolute;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 10px 10px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .96); color: var(--ink);
  box-shadow: 0 24px 50px -20px rgba(0, 0, 0, .55), 0 0 0 1px rgba(255, 255, 255, .5);
  white-space: nowrap;
  animation: bob 6s ease-in-out infinite;
}
.float b { display: block; font-size: 14px; line-height: 1.15; }
.float small { display: block; font-size: 11.5px; color: var(--muted); }
.float-ic { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; }
.f1 { left: -96px; top: 18%; transform: translateZ(150px); }
.f1 .float-ic { background: rgba(47, 98, 196, .12); color: #2F62C4; }
.f2 { right: -104px; top: 46%; transform: translateZ(170px); animation-delay: -2s; }
.f2 .float-ic { background: rgba(31, 115, 85, .12); color: var(--em-deep); }
.f3 { left: -64px; bottom: 12%; transform: translateZ(140px); animation-delay: -4s; }
.f3 .float-ic { background: rgba(245, 166, 35, .16); color: #B36F00; }
@keyframes bob {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}

/* ---------------------------------------------------------------- şerit */

.strip {
  overflow: hidden;
  border-bottom: 1px solid var(--rule);
  background: #fff;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.strip-track {
  display: flex; gap: 40px; width: max-content;
  margin: 0; padding: 18px 20px; list-style: none;
  animation: marquee 40s linear infinite;
}
.strip-track li {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 650; color: var(--teal); white-space: nowrap;
}
.strip-track .ic { color: var(--em); }
.strip:hover .strip-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ------------------------------------------------------------ bölümler */

.sec { padding: 96px 0; }
.sec-alt { background: #fff; }
.sec h2 { font-size: clamp(30px, 4.4vw, 48px); max-width: 18ch; text-wrap: balance; }
.sec-lead { max-width: 56ch; margin-top: 16px; font-size: 18px; color: var(--muted); }

/* adımlar — 3B çevrilerek gelir */
.steps {
  display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr);
  margin: 44px 0 0; padding: 0; list-style: none;
  perspective: 1200px;
}
.step {
  position: relative;
  padding: 28px 26px 30px;
  border-radius: var(--r);
  background: #fff;
  box-shadow: var(--shadow-1);
  transform-origin: 50% 0;
}
.step-ic {
  display: grid; place-items: center; width: 48px; height: 48px;
  border-radius: 14px; background: var(--wash); color: var(--em-deep);
}
.step-num {
  position: absolute; top: 22px; right: 24px;
  font-size: 44px; font-weight: 800; letter-spacing: -0.05em; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px #D5E1DC;
}
.step h3 { margin-top: 20px; font-size: 21px; }
.step p { margin-top: 10px; color: var(--muted); font-size: 16px; }

/* bento özellikler */
.bento {
  display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr);
  margin-top: 44px;
  perspective: 1400px;
}
.feat {
  position: relative; overflow: hidden;
  padding: 26px;
  border-radius: var(--r);
  background: var(--paper);
  box-shadow: inset 0 0 0 1px var(--rule);
  transform: rotateX(var(--ty, 0deg)) rotateY(var(--tx, 0deg));
  transform-style: preserve-3d;
  transition: transform .35s cubic-bezier(.2, .8, .2, 1), box-shadow .3s ease, background-color .3s ease;
}
.feat:hover { background: #fff; box-shadow: inset 0 0 0 1px var(--rule), var(--shadow-2); }
.feat-ic {
  display: grid; place-items: center; width: 48px; height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--em-deep), var(--em));
  color: #fff;
  box-shadow: 0 12px 22px -12px rgba(31, 115, 85, .9);
  transform: translateZ(30px);
}
.feat h3 { margin-top: 18px; font-size: 20px; transform: translateZ(20px); }
.feat p { margin-top: 8px; color: var(--muted); font-size: 15.5px; transform: translateZ(10px); }
.feat-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%), rgba(47, 163, 122, .12), transparent 60%);
  opacity: 0; transition: opacity .3s ease;
}
.feat:hover .feat-glow { opacity: 1; }

/* koyu gizlilik bölümü */
.sec-dark {
  position: relative; overflow: hidden;
  background:
    radial-gradient(60% 70% at 100% 50%, rgba(47, 163, 122, .16), transparent 70%),
    linear-gradient(180deg, var(--deep-2), var(--deep));
  color: #fff;
}
.priv { display: grid; gap: 48px; grid-template-columns: minmax(0, 1fr); align-items: center; }
.priv-copy > p { max-width: 56ch; margin-top: 18px; color: rgba(255, 255, 255, .74); }
.facts { display: grid; gap: 14px; margin: 30px 0 0; }
.fact {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 16px 18px; border-radius: 16px;
  background: rgba(255, 255, 255, .05);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .1);
}
.fact > .ic { margin-top: 3px; color: var(--mint); }
.fact dt { font-weight: 700; }
.fact dd { margin: 4px 0 0; font-size: 15px; color: rgba(255, 255, 255, .68); }
.link-arrow {
  display: inline-flex; align-items: center; gap: 4px; margin-top: 24px;
  color: var(--mint); font-weight: 650; text-decoration: none;
}
.link-arrow:hover { text-decoration: underline; }

/* 3B kasa küpü */
.cube-stage {
  position: relative; display: grid; place-items: center;
  height: 320px; perspective: 900px;
}
.cube {
  --s: 150px;
  position: relative; width: var(--s); height: var(--s);
  transform-style: preserve-3d;
  transform: rotateX(-24deg) rotateY(var(--cube-y, 35deg));
  animation: spin 18s linear infinite;
}
.cube-face {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(47, 163, 122, .32), rgba(13, 59, 74, .55));
  box-shadow: inset 0 0 0 1px rgba(123, 227, 187, .4), inset 0 0 40px rgba(123, 227, 187, .12);
  color: var(--mint);
  backface-visibility: visible;
}
.cube-face.fr { transform: translateZ(calc(var(--s) / 2)); }
.cube-face.bk { transform: rotateY(180deg) translateZ(calc(var(--s) / 2)); }
.cube-face.rt { transform: rotateY(90deg) translateZ(calc(var(--s) / 2)); }
.cube-face.lt { transform: rotateY(-90deg) translateZ(calc(var(--s) / 2)); }
.cube-face.tp { transform: rotateX(90deg) translateZ(calc(var(--s) / 2)); }
.cube-face.bt { transform: rotateX(-90deg) translateZ(calc(var(--s) / 2)); }
.cube-ring {
  position: absolute; left: 50%; top: 50%;
  width: 300px; height: 300px; margin: -150px 0 0 -150px;
  border-radius: 50%;
  border: 1px dashed rgba(123, 227, 187, .3);
  transform: rotateX(72deg);
  animation: ring 24s linear infinite;
}
@keyframes spin { to { transform: rotateX(-24deg) rotateY(395deg); } }
@keyframes ring { to { transform: rotateX(72deg) rotateZ(360deg); } }

/* kurulum */
.inst-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); margin-top: 36px; perspective: 1400px; }
.inst {
  padding: 28px; border-radius: var(--r);
  background: #fff; box-shadow: var(--shadow-1);
  transform: rotateX(var(--ty, 0deg)) rotateY(var(--tx, 0deg));
  transition: transform .35s cubic-bezier(.2, .8, .2, 1), box-shadow .3s ease;
}
.inst:hover { box-shadow: var(--shadow-2); }
.inst-ic {
  display: grid; place-items: center; width: 48px; height: 48px;
  border-radius: 14px; background: var(--wash); color: var(--em-deep);
}
.inst h3 { margin-top: 18px; font-size: 22px; }
.inst p { margin-top: 10px; color: var(--muted); }
.inst p strong { color: var(--ink); }
.inst-note { font-size: 15px; }

/* son çağrı */
.final {
  padding: 24px 0 96px;
}
.final-in {
  position: relative; overflow: hidden;
  padding: 56px 28px;
  border-radius: 32px;
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(123, 227, 187, .35), transparent 60%),
    linear-gradient(135deg, var(--em-dark), var(--em-deep) 50%, #23876A);
  color: #fff; text-align: center;
  box-shadow: var(--shadow-2);
}
.final h2 { font-size: clamp(30px, 5vw, 52px); }
.final p { margin: 14px auto 28px; max-width: 40ch; color: rgba(255, 255, 255, .82); font-size: 18px; }

/* alt bilgi */
.foot { padding: 40px 0 calc(40px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--rule); background: #fff; }
.foot-in { display: grid; gap: 18px; }
.foot .brand { color: var(--ink); }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.foot-links a { color: var(--muted); text-decoration: none; font-size: 15px; }
.foot-links a:hover { color: var(--ink); text-decoration: underline; }
.foot-line { color: var(--muted); font-size: 14px; }

/* ------------------------------------------------------------ açılışlar */

.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s cubic-bezier(.2, .8, .2, 1), transform .9s cubic-bezier(.2, .8, .2, 1);
  transition-delay: var(--d, 0ms);
}
.js .reveal.flip { transform: perspective(1000px) rotateX(-32deg) translateY(30px); }
.js .reveal.is-in { opacity: 1; transform: none; }
/* Eğilen kartlar açıldıktan sonra kendi dönüşünü kullanıyor. */
.js .feat.reveal.is-in,
.js .inst.reveal.is-in { transform: rotateX(var(--ty, 0deg)) rotateY(var(--tx, 0deg)); }
.no-js .reveal { opacity: 1; transform: none; }

/* --------------------------------------------------------------- yerleşim */

@media (min-width: 640px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .inst-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-in { grid-template-columns: auto 1fr; align-items: center; }
  .foot-line { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bento { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feat-wide { grid-column: span 2; }
  .priv { grid-template-columns: 1.2fr .8fr; }
  .final-in { padding: 72px 40px; }
}

@media (min-width: 1000px) {
  .hero { min-height: min(100svh, 920px); display: flex; align-items: center; }
  .hero-in { grid-template-columns: 1.1fr .9fr; gap: 40px; width: 100%; }
  .phone { --w: 290px; }
}

/* Telefon ve tablet: menü açılır panel, giriş tek sütun. */
@media (max-width: 899px) {
  .nav-toggle { display: block; }
  .nav-in { gap: 10px; }
  .nav-cta { margin-left: auto; }
  .nav-links {
    position: absolute; left: 12px; right: 12px; top: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
    flex-direction: column; align-items: stretch; gap: 2px;
    margin: 0; padding: 8px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .98);
    box-shadow: 0 30px 60px -20px rgba(7, 31, 39, .45);
    opacity: 0; visibility: hidden;
    transform: translateY(-8px) scale(.98);
    transform-origin: 50% 0;
    transition: opacity .2s ease, transform .25s ease, visibility 0s linear .25s;
  }
  .nav-links.is-open {
    opacity: 1; visibility: visible; transform: none;
    transition: opacity .2s ease, transform .25s ease, visibility 0s;
  }
  .nav-links a, .nav.is-solid .nav-links a { padding: 12px 14px; color: var(--ink); font-size: 16px; border-radius: 12px; }
  .nav-links a:hover { background: var(--paper); }
  .hero-copy { text-align: left; }
  .stage { min-height: 520px; margin-top: 8px; }
}

@media (max-width: 599px) {
  body { font-size: 16px; }
  .hold, .hero-in, .nav-in { padding-left: 18px; padding-right: 18px; }
  .brand span { font-size: 16px; }
  .nav-cta { height: 36px; padding: 0 14px; font-size: 13.5px; }
  .hero { padding-bottom: 48px; }
  .hero h1 br { display: none; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-stats { gap: 22px; }
  .try { padding: 12px; }
  .try-row .btn { flex: 1 1 100%; }
  .stage { min-height: 470px; }
  .phone { --w: 232px; }
  .float { padding: 8px 12px 8px 8px; border-radius: 14px; }
  .float b { font-size: 12.5px; }
  .float small { font-size: 10.5px; }
  .float-ic { width: 28px; height: 28px; }
  .f1 { left: -28px; top: 27%; }
  .f2 { right: -30px; top: 60%; }
  .f3 { left: -22px; bottom: 6%; }
  .sec { padding: 68px 0; }
  .sec-lead { font-size: 16.5px; }
  .step, .feat, .inst { padding: 22px; }
  .cube-stage { height: 240px; }
  .cube { --s: 110px; }
  .cube-ring { width: 220px; height: 220px; margin: -110px 0 0 -110px; }
  .final { padding-bottom: 64px; }
  .final-in { padding: 44px 22px; border-radius: 26px; }
}

/* Çok dar ekranlar (320–359): yüzen kartlar telefonun üstüne binmesin. */
@media (max-width: 359px) {
  .f1, .f3 { display: none; }
  .f2 { right: -24px; }
  .phone { --w: 214px; }
}

/* ------------------------------------------------------- hareket azaltma */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal, .js .reveal.flip { opacity: 1; transform: none; }
  .stage-in { transform: rotateX(6deg) rotateY(-14deg); }
  .feat, .inst { transform: none !important; }
  .orb { display: none; }
}