/* Gray Group — grayltdsti.com.tr
   İki tema: açık (varsayılan, beyaz nokta-dünya) ve koyu (gece ışıklı gerçek dünya).
   Tema <html data-theme="light|dark"> ile seçilir; seçim tarayıcıda saklanır.
   Başlık: Oswald Medium · Metin: Raleway */
:root {
  --red: #e5322d;        /* menü vurgusu */
  --display: "Oswald", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --body: "Raleway", "Segoe UI", system-ui, -apple-system, sans-serif;
  --gut: max(20px, env(safe-area-inset-left, 0px));
  --gut-r: max(20px, env(safe-area-inset-right, 0px));
  --max: 1240px;
}
/* açık tema (varsayılan) */
:root, :root[data-theme="light"] {
  --ink: #f3f5f8;
  --ink-2: #ffffff;
  --panel: #f7f9fc;
  --line: rgba(16, 36, 74, 0.08);
  --line-2: rgba(16, 36, 74, 0.18);
  --fg: #0c1a3a;
  --fg-2: #3d4a63;
  --fg-3: #6a7690;
  --signal: #1d4ed8;
  --signal-2: #1e3a8a;
  --ok: #067647;
  --err: #b42318;
  --vig: 243, 245, 248;
  --card: rgba(255, 255, 255, .74);
  --card-2: rgba(255, 255, 255, .9);
  --top-bg: rgba(243, 245, 248, .82);
  --menu-bg: rgba(243, 245, 248, .98);
  --foot-bg: rgba(255, 255, 255, .72);
  --svc-bg: linear-gradient(160deg, rgba(29, 78, 216, .05), rgba(255, 255, 255, .72) 45%, rgba(255, 255, 255, .88));
  --svc-glow: rgba(29, 78, 216, .09);
  --field: rgba(255, 255, 255, .8);
  --field-on: #fff;
  --btn-bg: #ffffff;
  --btn-fg: #0c1a3a;
  --btn-hover: #eef3ff;
  --btn-shadow: 0 10px 28px rgba(16, 36, 74, .12), 0 1px 2px rgba(16, 36, 74, .08);
  --ghost-line: rgba(12, 26, 58, .8);
  --ghost-bg: transparent;
  --partner: #6a7487;
  --partner-on: #0c1a3a;
  --raster: grayscale(1) brightness(.55);
  --raster-on: grayscale(1) brightness(.15);
  --msg-err: #b42318;
  --msg-ok: #067647;
  --grain-op: .75;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --ink: #020304;
  --ink-2: #06080b;
  --panel: #0b0f14;
  --line: rgba(170, 196, 224, 0.12);
  --line-2: rgba(170, 196, 224, 0.22);
  --fg: #e8eef5;
  --fg-2: #a3b0bf;
  --fg-3: #6d7a89;
  --signal: #4cc3ff;
  --signal-2: #9fe0ff;
  --red: #ff3d3d;
  --ok: #3ddc97;
  --err: #ff6b6b;
  --vig: 2, 3, 4;
  --card: rgba(11, 15, 20, .72);
  --card-2: rgba(11, 15, 20, .82);
  --top-bg: rgba(6, 8, 11, .78);
  --menu-bg: rgba(6, 8, 11, .97);
  --foot-bg: rgba(6, 8, 11, .92);
  --svc-bg: linear-gradient(160deg, rgba(76, 195, 255, .06), rgba(8, 11, 15, .55) 45%, rgba(8, 11, 15, .8));
  --svc-glow: rgba(76, 195, 255, .18);
  --field: rgba(255, 255, 255, .03);
  --field-on: rgba(76, 195, 255, .05);
  --btn-bg: #e8eef5;
  --btn-fg: #020304;
  --btn-hover: #9fe0ff;
  --btn-shadow: none;
  --ghost-line: rgba(170, 196, 224, 0.22);
  --ghost-bg: rgba(255, 255, 255, .02);
  --partner: #8a96a3;
  --partner-on: #d7dee6;
  --raster: invert(.62) grayscale(1);
  --raster-on: invert(.9) grayscale(1);
  --msg-err: #ffb3b3;
  --msg-ok: #b7f5d8;
  --grain-op: .35;
  color-scheme: dark;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { background: var(--ink); color: var(--fg); font-family: var(--body); font-size: 17px; line-height: 1.7; font-weight: 400;
  -webkit-font-smoothing: antialiased; overflow-x: hidden; }
html.theming, html.theming * { transition: background-color .45s ease, color .45s ease, border-color .45s ease, fill .45s ease !important; }
a { color: inherit; }
img, svg { max-width: 100%; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--signal); color: var(--ink); }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 500; line-height: 1.08; letter-spacing: .005em; text-wrap: balance; }
p { max-width: 66ch; }
.wrap { max-width: var(--max); margin: 0 auto; padding-left: var(--gut); padding-right: var(--gut-r); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 3D sahne ---------- */
.stage { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.stage canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; display: block; }
.stage::after { content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 20% 40%, rgba(var(--vig), 0) 0%, rgba(var(--vig), .4) 60%, rgba(var(--vig), .88) 100%); }
:root[data-theme="light"] .stage::after { background: radial-gradient(120% 90% at 30% 45%, rgba(var(--vig), 0) 0%, rgba(var(--vig), 0) 55%, rgba(var(--vig), .7) 100%); }
.grain { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: var(--grain-op);
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 96px 96px; mask-image: radial-gradient(80% 70% at 50% 0%, #000 0%, transparent 75%); -webkit-mask-image: radial-gradient(80% 70% at 50% 0%, #000 0%, transparent 75%); }
.page { position: relative; z-index: 1; }
:root[data-theme="light"] body { background:
  radial-gradient(90% 70% at 70% 30%, #ffffff 0%, rgba(255, 255, 255, 0) 60%),
  linear-gradient(180deg, #f6f8fb 0%, #eef1f6 100%) fixed; }

/* ---------- üst menü ---------- */
.top { position: fixed; z-index: 20; top: 0; left: 0; right: 0; padding-top: env(safe-area-inset-top, 0px);
  transition: background .3s, border-color .3s, backdrop-filter .3s; border-bottom: 1px solid transparent; }
.top.solid { background: var(--top-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-color: var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 76px; }
.logo { display: block; flex: none; }
.logo img { height: 30px; width: auto; display: block; }
.lg-dark { display: none !important; }
:root[data-theme="dark"] .lg-dark { display: block !important; }
:root[data-theme="dark"] .lg-light { display: none !important; }
/* tema düğmesi */
.theme { flex: none; position: relative; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line-2); background: var(--btn-bg); color: var(--fg);
  cursor: pointer; display: grid; place-items: center; box-shadow: var(--btn-shadow); transition: background .2s, border-color .2s, transform .2s; }
.theme:hover { border-color: var(--signal); }
.theme:active { transform: scale(.94); }
.theme svg { grid-area: 1 / 1; width: 20px; height: 20px; transition: opacity .35s, transform .5s cubic-bezier(.2, .8, .2, 1); }
.theme .i-moon { opacity: 1; transform: none; }
.theme .i-sun { opacity: 0; transform: rotate(-90deg) scale(.5); }
:root[data-theme="dark"] .theme { background: rgba(255, 255, 255, .04); }
:root[data-theme="dark"] .theme .i-moon { opacity: 0; transform: rotate(90deg) scale(.5); }
:root[data-theme="dark"] .theme .i-sun { opacity: 1; transform: none; color: #ffd27a; }
.nav { display: flex; gap: 28px; margin-left: auto; font-size: 15px; font-weight: 500; }
.nav a { text-decoration: none; color: var(--fg-2); position: relative; padding: 6px 0; transition: color .2s; }
.nav a:hover, .nav a:focus-visible, .nav a[aria-current="page"], .nav a.on { color: var(--red); }
.nav a[aria-current="page"]::after, .nav a.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--red); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font: 500 15px/1 var(--body); letter-spacing: .02em;
  padding: 15px 24px; border-radius: 999px; text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: transform .2s, background .2s, border-color .2s, color .2s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--btn-bg); color: var(--btn-fg); box-shadow: var(--btn-shadow); }
.btn-primary:hover { background: var(--btn-hover); }
.btn-ghost { border-color: var(--ghost-line); color: var(--fg); background: var(--ghost-bg); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal-2); }
:root[data-theme="light"] .btn-ghost { border-width: 1.5px; }
.top .btn { padding: 11px 18px; font-size: 14px; }
.burger { display: none; margin-left: 4px; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2); background: transparent; color: var(--fg); cursor: pointer; }
.burger span { display: block; width: 18px; height: 2px; background: currentColor; margin: 4px auto; transition: transform .25s, opacity .25s; }
.menu-open .burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .burger span:nth-child(2) { opacity: 0; }
.menu-open .burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- ortak bloklar ---------- */
section { position: relative; }
.block { padding-block: clamp(64px, 9vw, 120px); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 600 12.5px/1 var(--body); letter-spacing: .22em; text-transform: uppercase; color: var(--signal); }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.h-xl { font-size: clamp(46px, 7.4vw, 104px); text-transform: uppercase; letter-spacing: -.005em; line-height: .98; }
.h-l { font-size: clamp(36px, 5.2vw, 68px); text-transform: uppercase; }
.h-m { font-size: clamp(26px, 3vw, 36px); }
.lead { font-size: clamp(17px, 1.5vw, 20px); color: var(--fg-2); line-height: 1.75; }
.stack { display: flex; flex-direction: column; gap: 22px; }
.col { max-width: 760px; }
.muted { color: var(--fg-2); }

/* hero */
.hero { min-height: 100svh; display: flex; align-items: center; padding-block: 130px 90px; }
.hero > .wrap { width: 100%; }
.hero .col { max-width: 720px; }
.hero h1 .thin { display: block; color: transparent; -webkit-text-stroke: 1px var(--fg-3); }
.hero .lead { margin-top: 28px; max-width: 54ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.hero .coords { margin-top: 56px; display: flex; flex-wrap: wrap; gap: 10px 28px; font: 500 12.5px/1.4 var(--body); letter-spacing: .14em; text-transform: uppercase; color: var(--fg-3); }
.hero .coords b { color: var(--fg-2); font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: .06em; }
.scrollcue { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); width: 22px; height: 36px; border: 1px solid var(--line-2); border-radius: 12px; }
.scrollcue::after { content: ""; position: absolute; left: 50%; top: 7px; width: 2px; height: 7px; margin-left: -1px; background: var(--signal); border-radius: 2px; animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0% { transform: translateY(0); opacity: 1 } 70% { transform: translateY(12px); opacity: 0 } 100% { opacity: 0 } }

/* sayılar */
.figures { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: 56px; }
.figures > div { padding: 26px 22px 24px; border-left: 1px solid var(--line); }
.figures > div:first-child { border-left: 0; padding-left: 0; }
.figures b { display: block; font: 500 clamp(40px, 5vw, 64px)/1 var(--display); font-variant-numeric: tabular-nums; }
.figures span { display: block; margin-top: 10px; font-size: 14px; color: var(--fg-2); }

/* iki sütunlu metin */
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.split > * { min-width: 0; }
.split .stack p { color: var(--fg-2); }

/* hizmet kartları (3D eğim) */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 56px; perspective: 1200px; }
.svc { position: relative; padding: clamp(28px, 3.4vw, 44px); border: 1px solid var(--line); border-radius: 22px;
  background: var(--svc-bg); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); overflow: hidden;
  transform-style: preserve-3d; transition: transform .25s ease-out, border-color .3s; min-height: 360px; display: flex; flex-direction: column; }
.svc:hover { border-color: var(--line-2); }
.svc .idx { font: 500 13px/1 var(--body); letter-spacing: .2em; color: var(--fg-3); }
.svc h3 { font-size: clamp(28px, 3vw, 40px); text-transform: uppercase; margin-top: 64px; transform: translateZ(40px); }
.svc p { margin-top: 16px; color: var(--fg-2); transform: translateZ(24px); }
.svc ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 30px; transform: translateZ(18px); }
.svc li { font-size: 13px; padding: 7px 12px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--fg-2); }
.svc .glow { position: absolute; width: 380px; height: 380px; border-radius: 50%; pointer-events: none; left: var(--mx, 70%); top: var(--my, 20%);
  transform: translate(-50%, -50%); background: radial-gradient(circle, var(--svc-glow), transparent 65%); transition: opacity .3s; opacity: .7; }
.svc .ico { position: absolute; right: clamp(24px, 3vw, 40px); top: clamp(24px, 3vw, 40px); width: 64px; height: 64px; color: var(--signal); transform: translateZ(60px); }

/* hizmetler: üstte başlık + konumlar, ortada veri akışı penceresi, altta yan yana kartlar */
.flowhead { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 24px 56px; align-items: end; }
.flowhead .col { max-width: none; }
.flowwin { height: clamp(260px, 44vh, 480px); }
#hizmetler .services { margin-top: 0; }
.flowlegend { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0; max-width: 600px; font-size: 13px; color: var(--fg-2); }
.flowlegend li { display: inline-flex; align-items: center; gap: 8px; }
.flowlegend li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 3px rgba(76, 195, 255, .18); }
.flowlegend li.hq::before { background: var(--fg); box-shadow: 0 0 0 3px var(--line-2); }
.flowlegend .lbl { width: 100%; font-weight: 600; color: var(--fg); letter-spacing: .02em; }
.flowlegend .lbl::before { display: none; }

/* ürünler */
.products { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; margin-top: 44px; }
.prod { background: var(--ink-2); padding: 26px 24px 28px; text-decoration: none; display: flex; flex-direction: column; gap: 10px; transition: background .2s; min-width: 0; }
a.prod:hover { background: var(--panel); }
.prod .n { font: 500 22px/1.1 var(--display); letter-spacing: .02em; }
.prod small { display: block; font: 500 12px/1.4 var(--body); color: var(--signal); letter-spacing: .04em; margin-top: 6px; }
.prod p { font-size: 14.5px; color: var(--fg-2); }

/* iş ortakları */
.partners { margin-top: 48px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; position: relative;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.partners .track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.partners:hover .track { animation-play-state: paused; }
.partners ul { display: flex; list-style: none; }
.partners li { width: clamp(170px, 18vw, 230px); height: 116px; display: flex; align-items: center; justify-content: center; padding: 0 28px; color: var(--partner); border-right: 1px solid var(--line); transition: color .3s; }
.partners li:hover { color: var(--partner-on); }
.partners li img, .partners li svg { display: block; width: auto; max-width: 100%; }
.partners .tk { height: 30px; }
.partners .tall { height: 50px; }
.partners .mid { height: 34px; }
.partners .tp { display: flex; align-items: center; gap: 8px; font: 600 26px/1 var(--body); letter-spacing: -.01em; }
.partners .tp svg { height: 30px; }
.partners img.raster { filter: var(--raster); opacity: .95; height: 30px; }
.partners li:hover img.raster { filter: var(--raster-on); }
@keyframes marquee { from { transform: translateX(0) } to { transform: translateX(-50%) } }

/* ofisler ve şirket bilgileri */
.offices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 48px; }
.off { padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); backdrop-filter: blur(6px); display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.off .tag { font: 600 11.5px/1 var(--body); letter-spacing: .2em; text-transform: uppercase; color: var(--signal); }
.off h3 { font-size: 24px; }
.off address { font-style: normal; color: var(--fg-2); font-size: 15px; }
.off a { font-size: 14px; color: var(--signal-2); text-decoration: none; margin-top: auto; padding-top: 8px; }
.off a:hover { text-decoration: underline; }
.entities { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }
.entity { padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); min-width: 0; }
.entity .country { display: flex; align-items: center; gap: 10px; font: 600 12px/1 var(--body); letter-spacing: .2em; text-transform: uppercase; color: var(--fg-3); }
.entity h3 { font-size: clamp(18px, 1.7vw, 22px); line-height: 1.3; margin-top: 14px; letter-spacing: .02em; }
.entity .sub { color: var(--fg-2); font-size: 14px; margin-top: 4px; }
.entity dl { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px 22px; margin-top: 22px; font-size: 15px; }
.entity dt { color: var(--fg-3); }
.entity dd { color: var(--fg); overflow-wrap: anywhere; }
.entity dd a { text-decoration: none; }
.entity dd a:hover { color: var(--signal-2); }
.iban { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; }
.iban .k { font-size: 13px; color: var(--fg-3); width: 100%; }
.iban code { font: 500 15px/1.3 ui-monospace, "Cascadia Mono", Consolas, monospace; letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.copy { font: 500 13px/1 var(--body); padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line-2); background: transparent; color: var(--fg-2); cursor: pointer; }
.copy:hover { color: var(--fg); border-color: var(--signal); }

/* formlar */
.formwrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.formwrap > * { min-width: 0; }
.lines { display: flex; flex-direction: column; margin-top: 34px; border-top: 1px solid var(--line); }
.lines a { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); text-decoration: none; font-variant-numeric: tabular-nums; transition: color .2s; flex-wrap: wrap; }
.lines a span { color: var(--fg-3); font-size: 14px; }
.lines a:hover { color: var(--signal-2); }
form.card { padding: clamp(24px, 3.5vw, 44px); border: 1px solid var(--line-2); border-radius: 24px; background: var(--card-2); backdrop-filter: blur(10px); display: grid; gap: 18px; }
.row2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field label { font-size: 14px; font-weight: 600; color: var(--fg); }
.field label .opt { font-weight: 400; color: var(--fg-3); }
.field input, .field textarea, .field select { width: 100%; font: 400 16px/1.5 var(--body); color: var(--fg); background: var(--field);
  border: 1px solid var(--line-2); border-radius: 14px; padding: 13px 15px; transition: border-color .2s, background .2s; }
.field textarea { min-height: 150px; resize: vertical; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--fg-2) 50%), linear-gradient(135deg, var(--fg-2) 50%, transparent 50%);
  background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 40px; }
.field select option { background: var(--panel); color: var(--fg); }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--signal); background: var(--field-on); }
.field .hint { font-size: 13px; color: var(--fg-3); }
.file { position: relative; display: flex; align-items: center; gap: 14px; padding: 16px; border: 1px dashed var(--line-2); border-radius: 14px; cursor: pointer; transition: border-color .2s, background .2s; }
.file:hover, .file.drag { border-color: var(--signal); background: rgba(76, 195, 255, .05); }
.file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.file svg { flex: none; width: 28px; height: 28px; color: var(--signal); }
.file .t { font-size: 15px; }
.file .t small { display: block; color: var(--fg-3); font-size: 13px; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--fg-2); }
.check input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--signal); flex: none; }
.form-msg { font-size: 15px; border-radius: 14px; padding: 14px 16px; }
.form-msg.err { background: rgba(255, 107, 107, .1); color: var(--msg-err); border: 1px solid rgba(255, 107, 107, .3); }
.form-msg.ok { background: rgba(61, 220, 151, .08); color: var(--msg-ok); border: 1px solid rgba(61, 220, 151, .3); }
.sent { text-align: left; display: grid; gap: 14px; }
.sent .ic { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: rgba(61, 220, 151, .12); color: var(--ok); }
.sent h3 { font-size: 30px; text-transform: uppercase; }
.sent p { color: var(--fg-2); }
.linkbtn { background: none; border: 0; color: var(--signal-2); font: 500 15px var(--body); cursor: pointer; padding: 0; justify-self: start; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* sayfa başlığı (alt sayfalar) */
.pagehead { padding-block: 170px 70px; }
.pagehead .lead { margin-top: 26px; max-width: 60ch; }
.prose { display: flex; flex-direction: column; gap: 22px; }
.prose p { color: var(--fg-2); font-size: 18px; }
.prose p strong { color: var(--fg); font-weight: 600; }

/* zaman çizgisi */
.timeline { list-style: none; margin-top: 48px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line-2); }
.timeline li { padding: 26px 22px 0 0; position: relative; min-width: 0; }
.timeline li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: var(--signal); box-shadow: 0 0 0 4px rgba(76, 195, 255, .15); }
.timeline b { display: block; font: 500 26px/1 var(--display); }
.timeline span { display: block; color: var(--fg-2); font-size: 15px; margin-top: 10px; }

/* değer kartları */
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 48px; }
.value { padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); }
.value h3 { font-size: 22px; text-transform: uppercase; }
.value p { color: var(--fg-2); margin-top: 10px; font-size: 15.5px; }

/* SSS */
.faq { margin-top: 20px; border-top: 1px solid var(--line); counter-reset: q; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 48px minmax(0, 1fr) 28px; align-items: start; gap: 10px; padding: 26px 0; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { counter-increment: q; content: counter(q, decimal-leading-zero); font: 500 14px/1.9 var(--body); color: var(--fg-3); font-variant-numeric: tabular-nums; }
.faq summary h2 { font: 500 clamp(19px, 2vw, 24px)/1.35 var(--display); letter-spacing: .01em; text-transform: none; }
.faq summary .pm { width: 28px; height: 28px; position: relative; margin-top: 2px; }
.faq summary .pm::before, .faq summary .pm::after { content: ""; position: absolute; left: 6px; right: 6px; top: 13px; height: 2px; background: var(--fg-2); transition: transform .25s; }
.faq summary .pm::after { transform: rotate(90deg); }
.faq details[open] summary .pm::after { transform: rotate(0); }
.faq details[open] summary h2 { color: var(--signal-2); }
.faq .a { padding: 0 38px 28px 58px; color: var(--fg-2); }
.faq .a p + p { margin-top: 12px; }

/* kariyer */
.perks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 44px; }
.roles { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 30px; }
.roles li { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); font-weight: 600; flex-wrap: wrap; }
.roles li span { font-weight: 400; font-size: 13px; color: var(--fg-3); }

/* alt bilgi */
footer { position: relative; z-index: 1; border-top: 1px solid var(--line); background: var(--foot-bg); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding-block: 56px calc(30px + env(safe-area-inset-bottom, 0px)); }
.foot { display: grid; grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr)); gap: 36px; }
.foot img { height: 28px; width: auto; display: block; }
.foot p { color: var(--fg-3); font-size: 14px; margin-top: 16px; max-width: 36ch; }
.foot h4 { font: 600 12px/1 var(--body); letter-spacing: .2em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 16px; }
.foot ul { list-style: none; display: grid; gap: 10px; font-size: 15px; }
.foot a { text-decoration: none; color: var(--fg-2); }
.foot a:hover { color: var(--fg); }
.legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--fg-3); font-size: 13px; }

/* ---------- blog ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips a { text-decoration: none; font-size: 14px; font-weight: 500; padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--fg-2); background: var(--card); transition: color .2s, border-color .2s, background .2s; }
.chips a:hover { color: var(--fg); border-color: var(--signal); }
.chips a[aria-current] { background: var(--fg); color: var(--ink); border-color: var(--fg); }
.blog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; margin-top: 36px; }
.post-lead { margin-top: 36px; }
.post-card { display: flex; flex-direction: column; min-width: 0; border-radius: 20px; background: var(--card); border: 1px solid var(--line); overflow: hidden; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); transition: border-color .25s, transform .25s; }
.post-card:hover { border-color: var(--line-2); transform: translateY(-3px); }
.post-card .thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--panel); }
.post-card .thumb img, .post-card .thumb .ph { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.post-card .thumb .ph { background: linear-gradient(135deg, var(--signal), var(--signal-2)); opacity: .25; }
.post-card:hover .thumb img { transform: scale(1.04); }
.post-card .meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; padding: 20px 22px 0; font-size: 13px; color: var(--fg-3); }
.post-card .meta .cat { text-decoration: none; color: var(--signal); font-weight: 600; letter-spacing: .02em; }
.post-card h3 { padding: 10px 22px 0; font-size: 22px; line-height: 1.25; letter-spacing: .01em; }
.post-card h3 a { text-decoration: none; }
.post-card h3 a:hover { color: var(--signal); }
.post-card p { padding: 10px 22px 24px; font-size: 15px; color: var(--fg-2); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-card.big { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); grid-template-rows: auto auto 1fr; }
.post-card.big .thumb { grid-row: 1 / span 3; aspect-ratio: auto; min-height: 380px; }
.post-card.big .meta { padding: 40px 36px 0; }
.post-card.big h3 { padding: 14px 36px 0; font-size: clamp(26px, 2.6vw, 36px); }
.post-card.big p { padding: 14px 36px 36px; font-size: 16.5px; -webkit-line-clamp: 5; }
.pager { display: flex; gap: 8px; justify-content: center; margin-top: 44px; }
.pager a { min-width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; border: 1px solid var(--line-2); text-decoration: none; color: var(--fg-2); font-variant-numeric: tabular-nums; }
.pager a[aria-current] { background: var(--fg); color: var(--ink); border-color: var(--fg); }

.article { padding-top: 150px; }
.art-head { max-width: 900px; }
.crumb { font-size: 14px; color: var(--fg-3); display: flex; gap: 8px; flex-wrap: wrap; }
.crumb a { color: var(--signal); text-decoration: none; font-weight: 500; }
.crumb a:hover { text-decoration: underline; }
.art-head h1 { font-size: clamp(34px, 4.6vw, 60px); line-height: 1.06; margin-top: 18px; text-transform: none; letter-spacing: 0; }
.art-head .lead { margin-top: 22px; }
.art-meta { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-top: 26px; font-size: 14px; color: var(--fg-3); }
.art-meta span + span::before { content: "·"; margin-right: 22px; color: var(--line-2); }
.art-cover { margin-top: 40px; }
.art-cover img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 24px; border: 1px solid var(--line); }
.art-body { display: grid; grid-template-columns: minmax(0, 780px) 270px; justify-content: space-between; gap: clamp(32px, 6vw, 80px); align-items: start; margin-top: 48px; padding-bottom: 40px; }
.art-side { position: sticky; top: 110px; display: grid; gap: 22px; padding: 24px; border-radius: 20px; border: 1px solid var(--line); background: var(--card); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.art-side .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.art-side .tags span { font-size: 12.5px; color: var(--fg-2); padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line-2); }
.art-side .share { display: grid; gap: 8px; font-size: 14px; }
.art-side .share span { font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--fg-3); }
.art-side .share a { color: var(--fg-2); text-decoration: none; }
.art-side .share a:hover { color: var(--signal); }
.art-side .btn { justify-content: center; }

.md { font-size: 18px; line-height: 1.8; color: var(--fg-2); background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: clamp(24px, 4vw, 48px); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.md > * + * { margin-top: 1.1em; }
.md h2, .md h3, .md h4 { color: var(--fg); font-family: var(--display); font-weight: 500; line-height: 1.2; margin-top: 1.8em; }
.md h2 { font-size: 30px; } .md h3 { font-size: 24px; } .md h4 { font-size: 20px; }
.md strong { color: var(--fg); font-weight: 600; }
.md a { color: var(--signal); text-underline-offset: 3px; }
.md ul, .md ol { padding-left: 1.3em; }
.md li + li { margin-top: .45em; }
.md li::marker { color: var(--signal); }
.md blockquote { border-left: 3px solid var(--signal); padding: 14px 0 14px 22px; color: var(--fg); font-size: 17px; background: linear-gradient(90deg, var(--line), transparent); border-radius: 0 12px 12px 0; }
.md blockquote p { max-width: none; }
.md code { font: 500 .88em/1.4 ui-monospace, "Cascadia Mono", Consolas, monospace; padding: 2px 6px; border-radius: 6px; background: var(--line); color: var(--fg); }
.md pre { overflow-x: auto; padding: 18px 20px; border-radius: 14px; background: var(--ink-2); border: 1px solid var(--line); }
.md pre code { background: none; padding: 0; font-size: 14px; }
.md figure img, .md p img { display: block; width: 100%; height: auto; border-radius: 16px; border: 1px solid var(--line); }
.md figcaption { font-size: 14px; color: var(--fg-3); margin-top: 8px; text-align: center; }
.md hr { border: 0; border-top: 1px solid var(--line-2); margin: 2em 0; }
.md .video { position: relative; aspect-ratio: 16 / 9; border-radius: 16px; overflow: hidden; border: 1px solid var(--line); }
.md .video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.md p { max-width: none; }
@media (max-width: 1060px) { .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 900px) {
  .post-card.big { display: flex; }
  .post-card.big .thumb { min-height: 0; aspect-ratio: 16 / 9; }
  .post-card.big .meta { padding: 22px 22px 0; } .post-card.big h3 { padding: 10px 22px 0; font-size: 26px; } .post-card.big p { padding: 10px 22px 24px; }
  .art-body { grid-template-columns: minmax(0, 1fr); }
  .art-side { position: static; }
  .article { padding-top: 120px; }
}
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: minmax(0, 1fr); }
  .md { font-size: 17px; padding: 22px 18px; border-radius: 18px; }
  .md h2 { font-size: 25px; }
  .art-cover img { border-radius: 16px; }
}

/* görünür olunca beliren öğeler (önce görünür; JS varsa animasyon) */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s cubic-bezier(.2, .7, .2, 1), transform .9s cubic-bezier(.2, .7, .2, 1); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- duyarlı ---------- */
@media (max-width: 1060px) {
  .products { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .offices { grid-template-columns: minmax(0, 1fr); }
  .foot { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 30px; border-top: 0; }
  .timeline li { border-top: 1px solid var(--line-2); }
}
@media (max-width: 900px) {
  .nav, .top .btn { display: none; }
  .burger { display: block; }
  .theme { margin-left: auto; }
  .menu-open .nav { display: flex; position: fixed; top: calc(76px + env(safe-area-inset-top, 0px)); left: 0; right: 0; bottom: 0; flex-direction: column; gap: 0;
    padding: 10px var(--gut-r) 30px var(--gut); background: var(--menu-bg); font-size: 26px; font-family: var(--display); }
  .menu-open .nav a { padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--fg); }
  .menu-open .nav a[aria-current="page"]::after { display: none; }
  .menu-open .nav a[aria-current="page"], .menu-open .nav a.on { color: var(--red); }
  .split, .formwrap { grid-template-columns: minmax(0, 1fr); }
  .services, .entities, .values, .perks, .roles { grid-template-columns: minmax(0, 1fr); }
  .figures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .figures > div:nth-child(3) { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .figures > div:nth-child(4) { border-top: 1px solid var(--line); }
  .stage::after, :root[data-theme="light"] .stage::after { background: linear-gradient(180deg, rgba(var(--vig), .15) 0%, rgba(var(--vig), .5) 45%, rgba(var(--vig), .88) 100%); }
  .flowhead { grid-template-columns: minmax(0, 1fr); }
  .flowwin { height: clamp(220px, 46vh, 420px); }
  .svc { min-height: 0; }
  .svc h3 { margin-top: 70px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .eyebrow { letter-spacing: .14em; font-size: 11.5px; }
  .row2 { grid-template-columns: minmax(0, 1fr); }
  .products { grid-template-columns: minmax(0, 1fr); }
  .foot { grid-template-columns: minmax(0, 1fr); }
  .timeline { grid-template-columns: minmax(0, 1fr); }
  .faq summary { grid-template-columns: 34px minmax(0, 1fr) 24px; }
  .faq .a { padding: 0 0 24px 44px; }
  .hero { padding-top: 110px; }
  .pagehead { padding-block: 140px 50px; }
  .entity dl { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .entity dd { margin-bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .partners .track { animation: none; }
  .scrollcue::after { animation: none; }
  .svc { transition: none; }
}