/* Mechaway sitesi — Claude Design "Mechaway v3" tasarımından üretildi.
   Taban: Modernist tasarım sistemi (Archivo, sıfır radius, 2px bölücüler),
   üstüne v3'ün koyu paleti. Tek tema: koyu — marka tercihi. */

:root {
  --color-bg: #0b0c11;
  --color-surface: #13141c;
  --color-text: #eceef5;
  --color-divider: color-mix(in srgb, #eceef5 28%, transparent);
  --color-accent: #5b8cff;
  --color-accent-2: #8b6cf6;
  --color-accent-700: #a9bfff;
  --color-accent-100: #1a2140;
  --color-accent-2-100: #251b45;
  --color-accent-2-800: #d9c9ff;
  --color-neutral-100: #1a1b24;
  --color-neutral-800: #c9cbd6;

  --grid: color-mix(in srgb, #eceef5 7%, transparent);
  --grid2: color-mix(in srgb, #eceef5 16%, transparent);

  --font-heading: "Archivo", system-ui, sans-serif;
  --font-body: "Archivo", system-ui, sans-serif;

  --sx: 1;

  --gutter: clamp(20px, 5vw, 72px);
  --shell: 1200px;
  /* Üst çubuk sabit; sticky içindekiler, bölüm çapası ve başlık boşluğu buna
     bağlı. Dar ekranda çubuk iki satıra çıktığı için değer orada büyüyor. */
  --nav-h: 52px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* İmleci izleyen ışık. Tam ekran gradyanı imleç konumuyla kaydırmak her harekette
   tam repaint demekti; kendi katmanına alınıp transform ile taşınıyor. */
.scene-glow { display: none; }
.scene-3d .scene-glow {
  display: block;
  position: fixed;
  left: 0;
  top: 0;
  width: 1040px;
  height: 1040px;
  margin: -520px 0 0 -520px;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  will-change: transform;
  background: radial-gradient(closest-side circle,
    color-mix(in srgb, var(--color-accent) 18%, transparent),
    color-mix(in srgb, var(--color-accent-2) 8%, transparent) 45%,
    transparent 72%);
}

a { color: var(--color-accent-700); text-underline-offset: 3px; }
a:hover { color: var(--color-accent); }
::selection { background: color-mix(in srgb, var(--color-accent) 40%, transparent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.shell { max-width: var(--shell); margin: 0 auto; padding-inline: var(--gutter); }

.kicker {
  display: block;
  font-size: 11px;
  line-height: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-feature-settings: 'tnum' 1;
  color: var(--color-accent-700);
}

/* URL yolları büyütülmez: sayfa dili tr olduğunda text-transform "i"yi "İ"ye
   çevirip /privacy'yi /PRİVACY yapıyor — yol artık yol olmaktan çıkıyor. */
.path { text-transform: none; }

.eyebrow {
  display: block;
  font-size: 11px;
  line-height: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}

/* ─── marka ────────────────────────────────────────────────────────────── */

/* Varsayılan konum üst çubuktaki .nav-anchor boşluğuyla birebir çakışır: belge
   sayfalarında JS koşmaz, logo yerine buradan oturur. Ana sayfada home.js her
   karede left/top'ı satır içi yazarak devralır. */
.brand {
  position: fixed;
  left: max(var(--gutter), calc((100% - var(--shell)) / 2 + var(--gutter)));
  top: 12px;
  z-index: 60;
  transform-origin: 0 0;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 28px;
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
}
/* Konumu her iki modda da CSS veriyor; 3D modda JS yalnız hero'ya olan FARKI transform
   ile yazar. Her karede left/top yazmak layout tetikliyordu, konumu tamamen JS'e bırakmak
   ise ilk kare gecikirse logoyu bir an sol üst köşede gösteriyordu. */
.scene-3d .brand { will-change: transform; }
.brand-mark { transform-origin: 50% 50%; }
.scene-3d .brand-mark { will-change: transform; }
.brand-word {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 22px;
  line-height: 28px;
  letter-spacing: -.03em;
}
.brand-word span {
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ─── üst çubuk ────────────────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px max(var(--gutter), calc((100% - var(--shell)) / 2 + var(--gutter)));
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.nav-anchor { display: block; width: 172px; height: 28px; margin-right: auto; }
.nav-links { display: flex; align-items: center; gap: 16px; }
.nav a { color: inherit; text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--color-accent); }
.nav a[aria-current="page"] { color: var(--color-accent); }

.seg { display: inline-flex; border: 1px solid var(--color-divider); }
.seg a {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  color: inherit;
}
.seg a + a { border-left: 1px solid var(--color-divider); }
.seg a[aria-current="true"] { background: var(--color-accent); color: var(--color-bg); }
.seg a:not([aria-current="true"]):hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }

/* ─── etiket ve düğme ──────────────────────────────────────────────────── */

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  letter-spacing: .02em;
  padding: 3px 10px;
}
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent); }
.tag-neutral { background: var(--color-neutral-100); color: var(--color-neutral-800); }
.tag-accent { background: var(--color-accent-100); color: var(--color-accent-700); }
.tag-accent-2 { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg); }
.btn-primary:hover { background: var(--color-accent-700); color: var(--color-bg); }

/* ─── ana sayfa: varsayılan (JS yok / hareket azaltılmış) yığın düzeni ──── */

.scene { position: relative; z-index: 1; }
.scene-spacer { display: none; }
.scene-stage { max-width: var(--shell); margin: 0 auto; padding: 148px var(--gutter) 96px; }
.scene-floor, .scene-progress { display: none; }

.hero { max-width: 880px; }
.hero-anchor { display: block; height: clamp(48px, 6.5vw, 88px); width: 100%; margin-bottom: 32px; }
.hero h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(40px, 6.4vw, 92px);
  line-height: 1;
  letter-spacing: -.03em;
  margin: 24px 0 0 -.058em;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-shadow: 0 20px 60px rgba(0, 0, 0, .6);
}
.hero h1 > span { display: block; overflow: hidden; padding-bottom: .06em; }
.hero h1 .grad {
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  font-size: 17px;
  line-height: 28px;
  margin: 32px 0 0;
  max-width: 44ch;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}

.cards { display: flex; flex-direction: column; gap: 28px; margin-top: 96px; }

.card3d {
  position: relative;
  width: min(520px, 100%);
  padding: 36px 36px 32px;
  background: color-mix(in srgb, var(--color-surface) 62%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid color-mix(in srgb, var(--color-text) 16%, transparent);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .8),
              inset 0 1px 0 color-mix(in srgb, var(--color-text) 10%, transparent);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.card3d::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
}
/* Derinlik etiketi (Z 1750) yalnız 3D sahnede bir şey ifade ediyor. */
.card3d-depth { display: none; }
.scene-3d .card3d-depth { display: inline; }

.card3d-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-feature-settings: 'tnum' 1;
  color: var(--color-accent-700);
}
.card3d h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 0 0 0 -.04em;
}
.card3d p {
  font-size: 15.5px;
  line-height: 26px;
  margin: 0;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}
.card3d .tag, .card3d .btn { align-self: flex-start; }

.card3d-cta {
  width: min(720px, 100%);
  padding: 42px;
  gap: 24px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: #0b0c11;
  border: 0;
  box-shadow: 0 40px 120px -30px color-mix(in srgb, var(--color-accent) 60%, transparent);
}
.card3d-cta::before { display: none; }
.card3d-cta .card3d-head { color: inherit; }
.card3d-cta h2 { font-size: clamp(30px, 4vw, 52px); }
.card3d-cta a {
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid #0b0c11;
  align-self: flex-start;
  font-weight: 500;
  font-size: 17px;
}

/* ─── ana sayfa: JS açık ve hareket serbestse 3D sahne ──────────────────── */

.scene-3d .scene-spacer { display: block; height: calc(100vh + 3200px); }

.scene-3d .scene {
  position: fixed;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  perspective: 1100px;
  perspective-origin: 50% 45%;
}

.scene-3d .scene-floor {
  display: block;
  position: absolute;
  left: -100vw;
  right: -100vw;
  top: 58%;
  height: 1600px;
  overflow: hidden;
  transform-origin: top;
  transform: rotateX(78deg);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 70%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .9), transparent 70%);
}

/* Izgara kendi katmanında ve transform ile kaydırılıyor. background-position ile
   kaydırmak, üç ekran genişliğindeki bu yüzeyi her karede yeniden boyuyordu.
   280px tam tur; 56'nın katı olduğu için ince ızgara da dikişsiz sarıyor. */
.scene-floor-grid {
  position: absolute;
  left: 0;
  right: 0;
  top: -280px;
  bottom: -280px;
  will-change: transform;
  background-image:
    linear-gradient(var(--grid2) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid2) 1px, transparent 1px),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 280px 280px, 280px 280px, 56px 56px, 56px 56px;
}

.scene-3d .scene-stage {
  position: absolute;
  inset: 0;
  max-width: none;
  padding: 0;
  transform-style: preserve-3d;
  will-change: transform;
}

.scene-3d .hero {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(880px, 90vw);
  margin-left: calc(min(880px, 90vw) / -2);
  transform: translate3d(0, -50%, 0);
  will-change: transform, opacity;
}
.scene-3d .hero h1 { margin-top: 0; }

.scene-3d .cards { display: contents; }

.scene-3d .card3d {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(520px, 86vw);
  margin-left: calc(min(520px, 86vw) / -2);
  transform: translate3d(calc(var(--sx) * var(--tx)), calc(var(--sx) * var(--ty) - 50%), var(--z));
  will-change: transform, opacity;
  /* backdrop-filter altı kartta birden en pahalı işti: her kart arkasındaki her şeyi
     (zemin, diğer kartlar, ışık) her karede yeniden örnekleyip bulanıklaştırıyordu.
     Zemin zaten neredeyse siyah; opak yüzey görsel olarak aynı yere düşüyor. */
  background: color-mix(in srgb, var(--color-surface) 92%, var(--color-bg));
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.scene-3d .card3d-cta {
  width: min(720px, 88vw);
  margin-left: calc(min(720px, 88vw) / -2);
}

.scene-3d .scene-progress {
  display: flex;
  position: absolute;
  right: clamp(16px, 3vw, 40px);
  top: 50%;
  transform: translateY(-50%);
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
  font-size: 11px;
  letter-spacing: .08em;
  font-feature-settings: 'tnum' 1;
  color: var(--color-accent-700);
}
.scene-progress-track {
  width: 2px;
  height: 160px;
  background: color-mix(in srgb, var(--color-text) 14%, transparent);
  position: relative;
}
/* Yükseklik yerine scaleY: yükseklik yazmak layout tetikler, ölçek tetiklemez. */
.scene-progress-bar {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transform: scaleY(0);
  transform-origin: top;
  will-change: transform;
  background: linear-gradient(var(--color-accent), var(--color-accent-2));
}

@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes reveal { from { transform: translateY(110%) skewY(4deg); } to { transform: none; } }

.scene-3d .hero .kicker { animation: rise .7s cubic-bezier(.2, .7, .2, 1) both; }
.scene-3d .hero h1 > span > span { display: block; animation: reveal .9s cubic-bezier(.2, .8, .2, 1) both; }
.scene-3d .hero h1 > span:nth-child(1) > span { animation-delay: .15s; }
.scene-3d .hero h1 > span:nth-child(2) > span { animation-delay: .3s; }
.scene-3d .hero h1 > span:nth-child(3) > span { animation-delay: .45s; }
.scene-3d .hero p { animation: rise .8s cubic-bezier(.2, .7, .2, 1) .5s both; }

/* ─── belge sayfaları ──────────────────────────────────────────────────── */

.doc { position: relative; z-index: 1; }

.doc-header { padding: calc(var(--nav-h) + 96px) 0 56px; border-bottom: 2px solid var(--color-divider); }
.doc-header h1 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(36px, 4.6vw, 64px);
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: 14px 0 0 -.058em;
}
.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 48px;
  margin-top: 36px;
  font-size: 14px;
  line-height: 28px;
}
.doc-meta .eyebrow { margin-bottom: 2px; }
.doc-scope { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }

.doc-body {
  display: grid;
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: 56px clamp(32px, 5vw, 96px);
  padding: 56px 0 112px;
}

.toc { position: sticky; top: calc(var(--nav-h) + 44px); align-self: start; display: flex; flex-direction: column; }
.toc .eyebrow { margin-bottom: 14px; }
.toc a {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 8px;
  font-size: 14px;
  line-height: 28px;
  color: inherit;
  text-decoration: none;
  border-top: 1px solid var(--color-divider);
  padding: 4px 0;
}
.toc a:hover { color: var(--color-accent); }
.toc a span:first-child {
  font-feature-settings: 'tnum' 1;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
}

.doc-article { max-width: 64ch; min-width: 0; }
.doc-intro {
  font-size: 19px;
  line-height: 32px;
  margin: 0 0 56px;
  color: color-mix(in srgb, var(--color-text) 85%, transparent);
}

.doc-section {
  padding: 28px 0 42px;
  border-top: 2px solid var(--color-divider);
  margin-top: 14px;
  scroll-margin-top: calc(var(--nav-h) + 44px);
}
.doc-section h2 {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  line-height: 28px;
  letter-spacing: -.01em;
  margin: 0 0 28px;
}
.doc-section h2 .num {
  font-size: 15px;
  font-feature-settings: 'tnum' 1;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
}
.doc-blocks { padding-left: 56px; display: flex; flex-direction: column; gap: 20px; }
.doc-blocks p { font-size: 17px; line-height: 28px; margin: 0; }

.doc-kv {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 24px;
  margin: 0;
  font-size: 17px;
  line-height: 28px;
}
.doc-kv dt { color: color-mix(in srgb, var(--color-text) 60%, transparent); }
.doc-kv dd { margin: 0; }

.doc-list-intro { font-size: 17px; line-height: 28px; margin: 0 0 8px; font-weight: 500; }
.doc-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; }
.doc-list li {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 6px 0;
  border-top: 1px solid var(--color-divider);
  font-size: 17px;
  line-height: 28px;
}
.doc-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  display: block;
  transform: translateY(-2px);
}

/* ─── alt bilgi ────────────────────────────────────────────────────────── */

footer {
  position: relative;
  z-index: 1;
  border-top: 2px solid var(--color-divider);
  background: var(--color-bg);
}
footer .shell {
  padding-block: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-size: 13px;
  line-height: 28px;
  font-feature-settings: 'tnum' 1;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
footer .shell span:first-child { margin-right: auto; }
footer a { color: inherit; text-decoration: none; }
footer a:hover { color: var(--color-text); }
.scene-3d footer { display: none; }

/* ─── dar ekran ────────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .doc-body { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; }
  .doc-blocks { padding-left: 0; }
  .doc-section h2 { grid-template-columns: 36px 1fr; }
}

@media (max-width: 640px) {
  /* Türkçe etiketler tek satıra sığmıyor: marka + dil üstte, bağlantılar altta. */
  :root { --nav-h: 84px; }
  .nav { flex-wrap: wrap; row-gap: 8px; padding-bottom: 10px; padding-inline: var(--gutter); }
  .nav-anchor { width: 150px; }
  .nav-links { order: 3; width: 100%; gap: 14px; }
  .scene-stage { padding-top: calc(var(--nav-h) + 56px); }
}

/* 320px sınıfında üst çubuk bağlantıları tek satıra sığmıyor. */
@media (max-width: 360px) {
  .nav-links { gap: 10px; }
  .nav-links a { font-size: 13px; }
}