/* Spent: ortak stil. Cam yüzeyler, hareketli renk küreleri, açık/koyu tema.
   Üçüncü taraf kaynak yok; yalnız sistem yazı tipleri. */

@property --halo {
  syntax: "<color>";
  inherits: true;
  initial-value: #3d7bff;
}

:root {
  color-scheme: light dark;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI Variable Text", "Segoe UI", system-ui, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI Variable Display", "Segoe UI", system-ui, sans-serif;
  --font-serif: ui-serif, "New York", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-round: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

  --bg: #eceefb;
  --bg-2: #f6eefc;
  --ink: #0b0c22;
  --ink-2: #363955;
  --ink-3: #565a7a;
  --accent: #0060d0;
  --accent-bright: #0a84ff;
  --aqua: #0b8f86;
  --violet: #5b3fe0;
  --pink: #d63a78;

  --glass: rgba(255, 255, 255, .5);
  --glass-2: rgba(255, 255, 255, .7);
  --glass-3: rgba(255, 255, 255, .3);
  --edge: rgba(255, 255, 255, .95);
  --edge-soft: rgba(255, 255, 255, .6);
  --line: rgba(28, 32, 90, .12);
  --shadow: 0 1px 2px rgba(30, 30, 90, .06), 0 22px 48px -22px rgba(40, 40, 130, .4);
  --shadow-lg: 0 2px 4px rgba(30, 30, 90, .06), 0 40px 90px -36px rgba(40, 40, 140, .5);

  --blob-1: #6f9dff;
  --blob-2: #b493ff;
  --blob-3: #5fe0d4;
  --blob-4: #ff9cc5;
  --blob-o: .75;
  --base: linear-gradient(160deg, #e9edff 0%, #f4eefe 45%, #eaf7f6 100%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #05061a;
    --bg-2: #0c0a2a;
    --ink: #f4f5ff;
    --ink-2: #cdd0ea;
    --ink-3: #a2a6c8;
    --accent: #5aaeff;
    --aqua: #4ce8d6;
    --violet: #ab9bff;
    --pink: #ff86b9;

    --glass: rgba(24, 26, 64, .4);
    --glass-2: rgba(22, 24, 60, .66);
    --glass-3: rgba(255, 255, 255, .06);
    --edge: rgba(255, 255, 255, .32);
    --edge-soft: rgba(255, 255, 255, .12);
    --line: rgba(255, 255, 255, .1);
    --shadow: 0 1px 1px rgba(0, 0, 0, .3), 0 26px 60px -26px rgba(0, 0, 0, .8);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, .3), 0 50px 110px -40px rgba(0, 0, 0, .9);

    --blob-1: #1f5cff;
    --blob-2: #7a2fff;
    --blob-3: #00b4c4;
    --blob-4: #ff2f8a;
    --blob-o: .5;
    --base: linear-gradient(160deg, #070a24 0%, #0d0828 50%, #04121c 100%);
  }
}

/* backdrop-filter yoksa cam yerine okunaklı, opak dolgu. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  :root { --glass: rgba(246, 247, 255, .95); --glass-2: rgba(250, 250, 255, .97); }
  @media (prefers-color-scheme: dark) {
    :root { --glass: rgba(18, 20, 48, .96); --glass-2: rgba(18, 20, 48, .98); }
  }
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(104px + env(safe-area-inset-top, 0px));
}

body {
  margin: 0;
  min-height: 100vh;
  font: 400 1.0625rem/1.55 var(--font);
  color: var(--ink);
  background: var(--bg);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent-bright); outline-offset: 3px; border-radius: 8px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; letter-spacing: -.03em; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap; margin: -1px; padding: 0; border: 0;
}

.skip {
  position: absolute; left: 16px; top: -80px; z-index: 100;
  padding: 10px 16px; border-radius: 999px;
  background: var(--ink); color: var(--bg); font-weight: 600; text-decoration: none;
}
.skip:focus { top: 16px; }

.wrap { width: min(1200px, calc(100% - 32px)); margin-inline: auto; }

/* ---------- Arka plan: yavaş süzülen renk küreleri ---------- */

.ambient {
  position: fixed;
  inset: -12vmax;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  background: var(--base);
  transform: translate3d(0, calc(var(--sp, 0) * -6vmax), 0);
}
.ambient i {
  position: absolute;
  width: 64vmax;
  height: 64vmax;
  border-radius: 50%;
  opacity: var(--blob-o);
  background: radial-gradient(closest-side, var(--c) 0%, color-mix(in srgb, var(--c) 45%, transparent) 45%, transparent 100%);
  will-change: transform;
  animation: drift-a 34s ease-in-out infinite alternate;
}
.ambient i:nth-child(1) { --c: var(--blob-1); top: -8%; left: -12%; }
.ambient i:nth-child(2) { --c: var(--blob-2); top: 14%; right: -18%; animation-name: drift-b; animation-duration: 41s; }
.ambient i:nth-child(3) { --c: var(--blob-3); bottom: -18%; left: 8%; animation-name: drift-c; animation-duration: 38s; }
.ambient i:nth-child(4) { --c: var(--blob-4); top: 46%; left: 38%; width: 46vmax; height: 46vmax; animation-name: drift-b; animation-duration: 47s; animation-direction: alternate-reverse; }

@keyframes drift-a { to { transform: translate3d(14vmax, 10vmax, 0) scale(1.12); } }
@keyframes drift-b { to { transform: translate3d(-16vmax, 12vmax, 0) scale(.9); } }
@keyframes drift-c { to { transform: translate3d(10vmax, -14vmax, 0) scale(1.15); } }

@media (max-width: 700px) {
  .ambient i { width: 92vmax; height: 92vmax; }
  .ambient i:nth-child(4) { display: none; }
}

/* ---------- Cam yüzey ---------- */

.glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(var(--blur, 24px)) saturate(180%);
  backdrop-filter: blur(var(--blur, 24px)) saturate(180%);
  border: 1px solid var(--edge-soft);
  box-shadow: inset 0 1px 0 var(--edge), inset 0 -1px 0 var(--glass-3), var(--shadow);
  isolation: isolate;
}
/* Işığı yakalayan ince kenar: üst-sol parlak, alt-sağ yumuşak. */
.glass::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg, var(--edge) 0%, transparent 32%, transparent 64%, var(--edge-soft) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
  pointer-events: none;
}

/* ---------- Üst gezinme ---------- */

.site-header {
  position: fixed;
  top: calc(16px + env(safe-area-inset-top, 0px));
  inset-inline: 0;
  z-index: 50;
  display: flex;
  justify-content: center;
  padding-inline: 16px;
  pointer-events: none;
}
.nav-shell {
  position: relative;
  display: flex;
  align-items: center;
  width: max-content;
  max-width: 100%;
  gap: 16px;
  padding: 6px 8px 6px 12px;
  pointer-events: auto;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 76%, transparent);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--edge-soft);
  box-shadow: inset 0 1px 0 var(--edge), inset 0 -1px 0 var(--glass-3),
    0 4px 10px -5px rgba(10, 12, 40, .18), 0 18px 44px -18px rgba(10, 12, 40, .28);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-right: auto;
  color: var(--ink);
  font: 700 1.12rem/1 var(--font-display);
  letter-spacing: -.02em;
  text-decoration: none;
}
.brand img { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 4px 12px -4px rgba(40, 30, 140, .6); }
.site-header .brand { min-height: 44px; margin-right: 0; padding-right: 4px; }
.site-header .brand img { width: 30px; height: 30px; }
.nav-main, .languages { display: flex; align-items: center; gap: 2px; }
.nav-main a, .languages a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--ink-2);
  font-size: .875rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color .18s, color .18s;
}
.nav-main a:hover, .languages a:hover, .nav-main a:active, .languages a:active {
  background: color-mix(in srgb, var(--ink) 7%, transparent);
  color: var(--ink);
}
.nav-main a[aria-current="page"] {
  background: color-mix(in srgb, var(--ink) 7%, transparent);
  color: var(--ink);
}
.languages {
  gap: 0;
  padding: 0 0 0 8px;
  border-left: 1px solid var(--line);
}
.languages a {
  min-width: 44px;
  padding: 8px 10px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.languages a[aria-current="page"], .languages a[aria-current="page"]:hover {
  background: var(--ink);
  color: var(--bg);
}

@media (max-width: 640px) {
  .site-header { top: calc(10px + env(safe-area-inset-top, 0px)); padding-inline: 12px; }
  .nav-shell { gap: 6px; padding: 5px 6px; }
  .site-header .brand { padding: 0 2px; }
  .site-header .brand span { display: none; }
  .nav-main { gap: 0; }
  .nav-main a { padding-inline: 8px; font-size: .8rem; }
  .languages { padding-left: 4px; }
  .languages a { min-width: 40px; padding-inline: 8px; }
}
@media (max-width: 380px) {
  .nav-shell { gap: 4px; }
  .nav-main a { padding-inline: 6px; font-size: .78rem; }
  .languages a { min-width: 44px; }
  .languages a[aria-current="page"] { display: none; }
}

/* Cam desteği veya saydamlık tercihi değişse de gezinme okunaklı kalır. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .nav-shell { background: var(--bg); }
}
@media (prefers-reduced-transparency: reduce), (prefers-contrast: more) {
  .nav-shell {
    background: var(--bg);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-color: var(--ink-3);
  }
}

/* ---------- Ortak parçalar ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--ink-2);
  font: 650 .78rem/1 var(--font);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-bright), var(--violet));
}

.store-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 24px 0 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #23264a, #0b0c22);
  color: #fff;
  font: 650 1rem/1 var(--font);
  letter-spacing: -.01em;
  text-decoration: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .28), inset 0 0 0 1px rgba(255, 255, 255, .08), 0 18px 40px -16px rgba(20, 20, 90, .7);
  cursor: pointer;
}
.store-button svg { width: 22px; height: 22px; fill: currentColor; }
.store-button:disabled { cursor: default; }
@media (prefers-color-scheme: dark) {
  .store-button {
    background: linear-gradient(180deg, #ffffff, #dfe3ff);
    color: #0b0c22;
    box-shadow: inset 0 1px 0 #fff, 0 18px 50px -14px rgba(120, 140, 255, .55);
  }
}
.small-note { color: var(--ink-3); font-size: .86rem; }

/* ---------- Belge sayfaları (gizlilik, destek, 404) ---------- */

.document {
  position: relative;
  width: min(820px, calc(100% - 32px));
  margin: calc(112px + env(safe-area-inset-top, 0px)) auto clamp(48px, 8vw, 96px);
  padding: clamp(26px, 6vw, 64px);
  border-radius: clamp(28px, 4vw, 44px);
  background: var(--glass-2);
  -webkit-backdrop-filter: blur(30px) saturate(170%);
  backdrop-filter: blur(30px) saturate(170%);
  border: 1px solid var(--edge-soft);
  box-shadow: inset 0 1px 0 var(--edge), var(--shadow-lg);
}
.document h1 {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 760;
  letter-spacing: -.045em;
  margin-bottom: 18px;
}
.document .intro {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.2rem, 2.6vw, 1.5rem);
  line-height: 1.4;
  color: var(--ink-2);
}
.document .updated { margin-top: 14px; color: var(--ink-3); font-size: .88rem; }
.document section { padding-top: 30px; margin-top: 30px; border-top: 1px solid var(--line); }
.document h2 { font-size: clamp(1.35rem, 3vw, 1.7rem); letter-spacing: -.025em; margin-bottom: 12px; }
.document section p + p { margin-top: 12px; }
.document p { color: var(--ink-2); }
.document .callout {
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  background: color-mix(in srgb, var(--accent-bright) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-bright) 26%, transparent);
}
.document .callout p { color: var(--ink); }
.document .email {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 14px;
  background: var(--glass-3);
  border: 1px solid var(--line);
  font-weight: 600;
  word-break: break-all;
}

.error-page { text-align: center; }
.error-number {
  font: 800 clamp(6rem, 26vw, 12rem)/.9 var(--font-round);
  letter-spacing: -.06em;
  background: linear-gradient(120deg, var(--blob-1), var(--blob-2) 45%, var(--blob-4) 75%, var(--blob-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 12px;
}
.error-page .intro { margin-bottom: 22px; }
.error-page > p + p { margin-top: 26px; }
.back-link { font-weight: 650; }

/* ---------- Alt bilgi ---------- */

.site-footer { padding: 24px 0 40px; }
.site-footer .wrap {
  position: relative;
  padding: 24px clamp(20px, 4vw, 32px);
  border-radius: 28px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--edge-soft);
  box-shadow: inset 0 1px 0 var(--edge);
}
.footer-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; }
.footer-top .brand { gap: 0; margin-right: 0; font-size: 1.3rem; }
.footer-top .brand span { display: inline; }
.footer-top .brand span { color: var(--accent-bright); }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.footer-links a { color: var(--ink-2); font-size: .92rem; text-decoration: none; }
.footer-links a:hover { color: var(--ink); text-decoration: underline; }
.footer-note { margin-top: 14px; color: var(--ink-3); font-size: .86rem; }

@media (prefers-reduced-motion: reduce) {
  .ambient, .ambient i { animation: none !important; transform: none !important; }
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}