/* ZRK Yazılım — tek tema (gece laciverti). Vurgu: logodaki mavi → camgöbeği → altın geçiş.
   Yazı tipleri sitenin içinde; sayfa açılırken dış servise istek gitmez. */

@font-face { font-family: "Sora"; font-weight: 400 700; font-display: swap;
  src: url("fonts/sora-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Sora"; font-weight: 400 700; font-display: swap;
  src: url("fonts/sora-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Plus Jakarta Sans"; font-weight: 400 700; font-display: swap;
  src: url("fonts/jakarta-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Plus Jakarta Sans"; font-weight: 400 700; font-display: swap;
  src: url("fonts/jakarta-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  --bg: #050B17;
  --bg-2: #07112A;
  --surface: rgba(14, 28, 58, .55);
  --surface-solid: #0B1730;
  --line: rgba(120, 150, 210, .14);
  --line-strong: rgba(120, 170, 255, .28);
  --text: #EEF3FC;
  --soft: #BCC7DB;
  --muted: #8191B0;
  --cyan: #45C8FF;
  --blue: #2A7BFF;
  --gold: #F6B95E;
  --trail: linear-gradient(90deg, var(--blue), var(--cyan) 55%, var(--gold));
  --display: "Sora", "Segoe UI", system-ui, sans-serif;
  --body: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --wrap: 1160px;
  --radius: 18px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 400 17px/1.7 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; text-wrap: balance; margin: 0; }
p { margin: 0; }
.grad { background: var(--trail); -webkit-background-clip: text; background-clip: text; color: transparent; }
.skip { position: absolute; left: -9999px; top: 12px; z-index: 50; background: var(--cyan); color: #03101F;
  padding: 10px 16px; border-radius: 8px; font-weight: 600; }
.skip:focus { left: 12px; }

.wrap { max-width: var(--wrap); margin: 0 auto;
  padding-left: max(24px, env(safe-area-inset-left, 0px));
  padding-right: max(24px, env(safe-area-inset-right, 0px)); }

/* Arka plan: ince ızgara + yıldız tozu, yalnızca sayfanın üst kısmında */
.backdrop { position: absolute; inset: 0 0 auto; height: 1100px; pointer-events: none; z-index: 0; overflow: hidden; }
.backdrop::before { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(70% 60% at 70% 30%, #000 10%, transparent 75%);
  mask-image: radial-gradient(70% 60% at 70% 30%, #000 10%, transparent 75%); opacity: .55; }
.backdrop::after { content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(1.5px 1.5px at 12% 22%, rgba(255,255,255,.55), transparent 60%),
    radial-gradient(1px 1px at 28% 68%, rgba(255,255,255,.4), transparent 60%),
    radial-gradient(1.5px 1.5px at 46% 14%, rgba(69,200,255,.7), transparent 60%),
    radial-gradient(1px 1px at 63% 52%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(1.5px 1.5px at 84% 18%, rgba(246,185,94,.7), transparent 60%),
    radial-gradient(1px 1px at 92% 64%, rgba(255,255,255,.45), transparent 60%),
    radial-gradient(1px 1px at 7% 84%, rgba(69,200,255,.5), transparent 60%),
    radial-gradient(55% 45% at 78% 32%, rgba(42,123,255,.22), transparent 70%),
    radial-gradient(35% 30% at 18% 10%, rgba(69,200,255,.08), transparent 70%); }
main, footer { position: relative; z-index: 1; }

/* Üst çubuk */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px);
  z-index: 31; background: var(--bg); }
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30;
  background: rgba(5, 11, 23, .72); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 12px; }
.top .brand img { height: 42px; width: auto; }
.top nav { display: flex; align-items: center; gap: 30px; font-size: 15px; }
.top nav a { color: var(--soft); text-decoration: none; transition: color .15s; }
.top nav a:hover { color: var(--text); }
.top nav .lang { font-size: 12.5px; letter-spacing: .1em; color: var(--muted);
  border: 1px solid var(--line-strong); border-radius: 999px; padding: 4px 11px; }
.top nav .cta { color: var(--text); font-weight: 600; border: 1px solid var(--line-strong);
  border-radius: 999px; padding: 8px 16px; background: rgba(69, 200, 255, .06); }
.top nav .cta:hover { border-color: var(--cyan); }

/* Mobil menü: JS'siz <details> */
.menu { display: none; position: relative; }
.menu summary { list-style: none; cursor: pointer; display: grid; place-items: center;
  width: 42px; height: 42px; border: 1px solid var(--line-strong); border-radius: 12px; }
.menu summary::-webkit-details-marker { display: none; }
.menu summary span, .menu summary span::before, .menu summary span::after {
  display: block; width: 18px; height: 1.6px; background: var(--text); border-radius: 2px; position: relative; transition: transform .2s, background .2s; }
.menu summary span::before, .menu summary span::after { content: ""; position: absolute; left: 0; }
.menu summary span::before { top: -6px; } .menu summary span::after { top: 6px; }
.menu[open] summary span { background: transparent; }
.menu[open] summary span::before { transform: translateY(6px) rotate(45deg); }
.menu[open] summary span::after { transform: translateY(-6px) rotate(-45deg); }
.menu nav { position: absolute; right: 0; top: calc(100% + 10px); min-width: 210px; display: grid; gap: 2px;
  padding: 8px; background: var(--surface-solid); border: 1px solid var(--line-strong); border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0,0,0,.45); }
.menu nav a { padding: 10px 14px; border-radius: 9px; color: var(--soft); text-decoration: none; }
.menu nav a:hover { background: rgba(69,200,255,.08); color: var(--text); }
@media (max-width: 820px) { .top .wrap > nav:has(+ .menu) { display: none; } .menu { display: block; } }

/* Giriş */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center; gap: 40px; padding-block: 120px 104px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--soft);
  border: 1px solid var(--line-strong); border-radius: 999px; padding: 6px 14px 6px 10px; margin-bottom: 28px;
  background: rgba(14, 28, 58, .5); }
.eyebrow i { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.hero h1 { font-size: clamp(38px, 5.6vw, 66px); font-weight: 600; letter-spacing: -.03em; }
.hero .lead { color: var(--soft); font-size: 19px; max-width: 33em; margin: 26px 0 40px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero .visual { position: relative; justify-self: end; width: min(100%, 440px); aspect-ratio: 1; }
.hero .visual::before { content: ""; position: absolute; inset: 8%; border-radius: 50%;
  border: 1px solid var(--line-strong); }
.hero .visual::after { content: ""; position: absolute; inset: -6%; border-radius: 50%;
  border: 1px dashed rgba(120, 170, 255, .14); }
.hero .mark { position: relative; z-index: 1; width: 100%; filter: drop-shadow(0 0 48px rgba(69, 200, 255, .32));
  animation: breathe 6s ease-in-out infinite; }
@keyframes breathe { 50% { filter: drop-shadow(0 0 70px rgba(69, 200, 255, .5)); transform: translateY(-6px); } }
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; padding-block: 40px 72px; gap: 8px; }
  .hero .visual { order: -1; width: 200px; justify-self: start; margin-left: -18px; }
}

.btn { display: inline-flex; align-items: center; gap: 10px; padding: 15px 24px; border-radius: 12px;
  font: 600 16px/1 var(--body); text-decoration: none; background: var(--cyan); color: #03101F;
  box-shadow: 0 8px 30px rgba(69, 200, 255, .25), inset 0 1px 0 rgba(255,255,255,.4);
  transition: transform .15s, box-shadow .15s, background .15s; }
.btn:hover { background: #7FD9FF; transform: translateY(-1px); box-shadow: 0 12px 36px rgba(69, 200, 255, .35); }
.btn svg { width: 18px; height: 18px; }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line-strong); box-shadow: none; }
.btn.ghost:hover { border-color: var(--cyan); background: rgba(69,200,255,.06); }

/* Güven şeridi */
.facts { border-block: 1px solid var(--line); background: rgba(7, 17, 42, .6); }
.facts ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.facts li { padding: 26px 24px; display: grid; gap: 4px; }
.facts li + li { border-left: 1px solid var(--line); }
.facts b { font: 600 15.5px/1.3 var(--display); color: var(--text); }
.facts span { font-size: 14px; color: var(--muted); line-height: 1.5; }
@media (max-width: 900px) {
  .facts ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts li:nth-child(3) { border-left: 0; }
  .facts li:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 480px) {
  .facts ul { grid-template-columns: 1fr; }
  .facts li + li { border-left: 0; border-top: 1px solid var(--line); }
}

/* Bölümler */
section.block { padding-block: 96px; }
@media (max-width: 760px) { section.block { padding-block: 64px; } .head { margin-bottom: 36px; } footer { margin-top: 64px; } }
.head { display: grid; gap: 18px; max-width: 46em; margin-bottom: 56px; }
.label { display: flex; align-items: center; gap: 12px; font: 600 12.5px/1 var(--body);
  letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.label::before { content: ""; width: 26px; height: 2px; background: var(--trail); border-radius: 2px; }
.block h2 { font-size: clamp(28px, 3.4vw, 42px); font-weight: 600; letter-spacing: -.02em; }
.head p { color: var(--soft); font-size: 18px; }

/* Kartlar (hizmetler) */
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card { position: relative; padding: 34px 30px 36px; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(20, 38, 76, .55), rgba(10, 20, 42, .4));
  border: 1px solid var(--line); display: grid; align-content: start; gap: 14px;
  transition: transform .25s, border-color .25s, box-shadow .25s; }
.card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0;
  background: radial-gradient(120% 80% at 0% 0%, rgba(69, 200, 255, .12), transparent 60%); transition: opacity .25s; }
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 24px 60px rgba(0, 0, 0, .35); }
.card:hover::before { opacity: 1; }
.icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 8px;
  background: rgba(69, 200, 255, .08); border: 1px solid rgba(69, 200, 255, .22); color: var(--cyan); }
.icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 21px; font-weight: 600; }
.card p { color: var(--soft); font-size: 16px; }
.card ul { list-style: none; margin: 6px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line); display: grid; gap: 9px; }
.card li { position: relative; padding-left: 20px; font-size: 15px; color: var(--muted); line-height: 1.5; }
.card li::before { content: ""; position: absolute; left: 0; top: .55em; width: 7px; height: 7px; border-radius: 2px;
  background: var(--trail); }
@media (max-width: 900px) { .services { grid-template-columns: 1fr; } }

/* Süreç */
.process { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px;
  counter-reset: step; }
.process li { position: relative; padding: 30px 26px 32px; border-radius: var(--radius); border: 1px solid var(--line);
  background: rgba(10, 20, 42, .45); counter-increment: step; }
.process li::before { content: "0" counter(step); display: block; font: 600 14px/1 var(--display); letter-spacing: .1em;
  margin-bottom: 26px; background: var(--trail); -webkit-background-clip: text; background-clip: text; color: transparent; }
.process li::after { content: ""; position: absolute; top: 36px; left: 62px; right: 22px; height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent); }
.process h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; }
.process p { color: var(--muted); font-size: 15px; line-height: 1.6; }
@media (max-width: 960px) { .process { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .process { grid-template-columns: 1fr; } }

/* Zerka Games */
.showcase { position: relative; overflow: hidden; border-radius: 24px; padding: 56px 52px;
  border: 1px solid var(--line-strong); display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 48px; align-items: center;
  background: radial-gradient(50% 90% at 100% 0%, rgba(42, 123, 255, .28), transparent 65%),
              radial-gradient(40% 70% at 0% 100%, rgba(246, 185, 94, .10), transparent 60%),
              linear-gradient(135deg, rgba(20, 38, 76, .7), rgba(7, 14, 32, .9)); }
.showcase .copy { display: grid; gap: 18px; }
.showcase h3 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 600; letter-spacing: -.02em; }
.showcase p { color: var(--soft); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.tags li { font-size: 13px; color: var(--soft); border: 1px solid var(--line-strong); border-radius: 999px; padding: 4px 12px; }
.caps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.caps li { position: relative; padding: 22px 22px 22px 24px; border-radius: 14px; border: 1px solid var(--line);
  background: rgba(5, 11, 23, .45); transition: border-color .25s, transform .25s; }
.caps li::before { content: ""; position: absolute; left: 0; top: 22px; bottom: 22px; width: 2px; border-radius: 2px; background: var(--trail); }
.caps li:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.caps h4 { margin: 0 0 6px; font: 600 16px/1.3 var(--display); }
.caps p { color: var(--muted); font-size: 14.5px; line-height: 1.55; }
.studio-note { margin-top: 22px; color: var(--muted); font-size: 15px; }
@media (max-width: 960px) { .showcase { grid-template-columns: 1fr; gap: 32px; } }
@media (max-width: 560px) { .showcase { padding: 36px 24px; } .caps { grid-template-columns: 1fr; } }

/* Yaklaşım */
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.values .card { padding: 30px 28px; }
.values h3 { font-size: 18.5px; }
@media (max-width: 900px) { .values { grid-template-columns: 1fr; } }

/* İletişim */
.cta-panel { position: relative; overflow: hidden; border-radius: 28px; padding: 72px 64px;
  border: 1px solid var(--line-strong);
  background: radial-gradient(60% 120% at 100% 0%, rgba(42, 123, 255, .35), transparent 60%),
              radial-gradient(40% 80% at 0% 100%, rgba(246, 185, 94, .12), transparent 60%), var(--bg-2);
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 48px; align-items: center; }
.cta-panel h2 { font-size: clamp(30px, 3.6vw, 46px); margin-top: 18px; }
.cta-panel p { color: var(--soft); margin-top: 18px; font-size: 18px; max-width: 30em; }
.mailbox { display: grid; gap: 14px; justify-items: start; }
.mailbox .addr { font: 600 clamp(19px, 2.2vw, 24px)/1.3 var(--display); color: var(--text); text-decoration: none; overflow-wrap: anywhere; }
.mailbox .addr:hover { color: var(--cyan); }
.mailbox small { color: var(--muted); font-size: 14px; }
.copy-btn { font: 500 14px/1 var(--body); color: var(--soft); background: none; border: 1px solid var(--line-strong);
  border-radius: 999px; padding: 8px 14px; cursor: pointer; }
.copy-btn:hover { color: var(--text); border-color: var(--cyan); }
@media (max-width: 860px) { .cta-panel { grid-template-columns: 1fr; padding: 44px 28px; gap: 32px; } }

/* Alt bilgi */
footer { margin-top: 112px; border-top: 1px solid var(--line); padding-block: 48px 56px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 32px; }
footer .brand img { height: 36px; width: auto; opacity: .9; }
footer a { color: var(--soft); text-decoration: none; }
footer a:hover { color: var(--text); }
footer nav { display: flex; flex-wrap: wrap; gap: 22px; }

/* Kaydırınca beliren öğeler (yalnızca JS varsa) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* Metin sayfaları (KVKK, 404) */
.doc { padding-block: 80px 40px; }
.doc article { max-width: 46em; }
.doc h1 { font-size: clamp(30px, 4vw, 42px); margin-bottom: 10px; letter-spacing: -.02em; }
.doc .date { color: var(--muted); margin: 0 0 44px; }
.doc h2 { font-size: 20px; margin: 44px 0 12px; }
.doc p, .doc li { color: var(--soft); }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 22px; display: grid; gap: 8px; margin: 12px 0 0; }
.notfound { min-height: 60vh; display: grid; align-content: center; gap: 22px; }
.notfound .code { font: 600 clamp(72px, 14vw, 150px)/1 var(--display); letter-spacing: -.04em; }