/* SUSTAICO — site stilleri
   Renkler: Marka Paketi/marka-tokens.css + wiki/konular/marka-kimligi.md
   Tek marka rengi: Antrasit #2A2F3D
   İçerik kaynağı: Ecz_SUSTAICO Kurumsal Sunum_Ekim 2026.pdf */

:root {
  /* Marka paleti */
  --antrasit: #2A2F3D;
  --derin: #22262F;
  --celik: #46698A;
  --sis: #9DBAD5;
  --acik-ton: #E0E6F0;
  --inci: #ECEDF2;
  --buz: #EBF3FA;
  --logo-ton: #D8DCE8;
  --gece: #374357; /* sunumdaki "Dönüştür" sütun tonu */

  /* Rol tokenları */
  --bg: #F7F9FC;
  --bg-alt: var(--buz);
  --bg-neutral: var(--inci);
  --surface: #FFFFFF;
  --line: var(--logo-ton);
  --ink: var(--antrasit);
  --ink-body: #4A5263;
  --muted: #5E6678;
  --accent: var(--celik);
  --accent-hover: #3A5873;
  --on-dark: var(--buz);
  --on-dark-muted: #B7C6D6;
  --on-dark-line: rgba(235, 243, 250, 0.14);
  --error: #A33A3A;
  --success: #2F6B4F;

  --font-display: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --font-text: "Inter", "Segoe UI", system-ui, sans-serif;

  --container: 1200px;
  --gutter: clamp(20px, 5vw, 48px);
  --section-y: clamp(80px, 11vw, 144px);
  --radius: 14px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-body);
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-intro { overflow: hidden; }

img, svg { display: block; max-width: 100%; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Koyu zeminlerde odak çerçevesi açık ton (kontrast ≥ 3:1) */
.hero :focus-visible,
.principles-section :focus-visible,
.site-footer :focus-visible,
.legal-hero :focus-visible,
.site-header:not(.is-solid) :focus-visible,
body.menu-open .site-header :focus-visible { outline-color: var(--sis); }

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--surface);
  color: var(--ink);
  border-radius: 8px;
  font-weight: 600;
  transition: top .2s;
}
.skip-link:focus { top: 16px; }

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

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Tipografi ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  font-weight: 400;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.15;
  font-weight: 300;
  max-width: 22ch;
}

h3 {
  font-size: clamp(20px, 2vw, 23px);
  line-height: 1.3;
  font-weight: 400;
}

p { margin: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  font-family: var(--font-text);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.kicker {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--muted);
}

.lead {
  margin-top: 22px;
  max-width: 60ch;
  font-size: clamp(17px, 1.5vw, 19px);
  color: var(--ink-body);
}

.section { padding: var(--section-y) 0; }
.section--alt { background: var(--bg-alt); }
.section--neutral { background: var(--bg-neutral); }
.section__head { margin-bottom: clamp(48px, 6vw, 72px); }

/* ---------- Butonlar ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-text);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), opacity .25s;
}
.btn svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn[disabled] { opacity: .6; cursor: progress; }

.btn--light { background: var(--buz); color: var(--derin); }
.btn--light:hover { background: #fff; color: var(--derin); }

.btn--ghost-light { border-color: rgba(235, 243, 250, 0.55); color: var(--on-dark); }
.btn--ghost-light:hover { border-color: var(--on-dark); color: #fff; }

.btn--primary { background: var(--antrasit); color: var(--buz); }
.btn--primary:hover { background: var(--derin); color: #fff; }

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), opacity .6s var(--ease), transform .6s var(--ease);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 80px;
}

.brand { display: block; position: relative; width: 168px; height: 48px; flex-shrink: 0; }
.brand img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  transition: opacity .35s var(--ease);
}
.brand__dark { opacity: 0; }

.nav { display: flex; align-items: center; gap: 34px; }
.nav__list { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav__list a {
  position: relative;
  color: var(--on-dark);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  padding: 6px 0;
  transition: color .25s;
}
.nav__list a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav__list a:hover::after,
.nav__list a[aria-current="true"]::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 18px; }

.lang {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--on-dark-muted);
}
.lang a { color: inherit; text-decoration: none; padding: 12px 6px; margin: -12px -6px; }
.lang a:hover { color: var(--on-dark); }
.lang [aria-current="page"] { color: var(--on-dark); }

.nav__cta { min-height: 42px; padding: 0 20px; font-size: 14px; }

.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 0;
  background: transparent;
  color: var(--on-dark);
  cursor: pointer;
  padding: 10px;
}
.menu-toggle span {
  display: block;
  height: 1.5px;
  background: currentColor;
  margin: 6px 0;
  transition: transform .3s var(--ease), opacity .3s;
}

/* Kaydırıldığında açık zemin */
.site-header.is-solid {
  background: rgba(247, 249, 252, 0.92);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
.site-header.is-solid .brand__light { opacity: 0; }
.site-header.is-solid .brand__dark { opacity: 1; }
.site-header.is-solid .nav__list a { color: var(--ink); }
.site-header.is-solid .lang { color: var(--muted); }
.site-header.is-solid .lang a:hover,
.site-header.is-solid .lang [aria-current="page"] { color: var(--ink); }
.site-header.is-solid .menu-toggle { color: var(--ink); }
.site-header.is-solid .nav__cta { background: var(--antrasit); color: var(--buz); }
.site-header.is-solid .nav__cta:hover { background: var(--derin); }

body.is-intro .site-header { opacity: 0; transform: translateY(-12px); pointer-events: none; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--derin);
  color: var(--on-dark);
  isolation: isolate;
}

.hero__art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero__art .ground { opacity: 0; transition: opacity 1.6s var(--ease); }
.hero__art .horizon {
  stroke: var(--sis);
  stroke-width: 1;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  opacity: .55;
  transition: stroke-dashoffset 1.6s var(--ease-out);
}
.hero__art .dome {
  fill: none;
  stroke: var(--sis);
  stroke-width: 1.2;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: 50% 100%;
  transform: scaleY(0);
  transition: transform 1.5s var(--ease-out), opacity 1s var(--ease);
}
.hero__art .dome--echo { stroke-width: 1; }
.hero__art .orbit {
  fill: none;
  stroke: var(--on-dark-line);
  stroke-width: 1;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 2.4s var(--ease-out);
}
.hero__art .tick {
  stroke: var(--sis);
  stroke-width: 1.2;
  opacity: 0;
  transition: opacity 1s var(--ease);
}

/* Aşamalar: data-stage 1..4 */
.hero[data-stage] .horizon { stroke-dashoffset: 0; }
.hero[data-stage="2"] .dome,
.hero[data-stage="2"] .dome--echo { opacity: .5; transform: scaleY(.42); }
.hero[data-stage="3"] .dome,
.hero[data-stage="4"] .dome { opacity: .55; transform: scaleY(1); }
.hero[data-stage="3"] .dome--echo,
.hero[data-stage="4"] .dome--echo { opacity: .18; transform: scaleY(1); }
.hero[data-stage="3"] .ground,
.hero[data-stage="4"] .ground { opacity: 1; }
.hero[data-stage="3"] .orbit,
.hero[data-stage="4"] .orbit { stroke-dashoffset: 0; }
.hero[data-stage="4"] .tick { opacity: .6; }

/* Giriş sahnesi — üç kelime */
.intro {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  transition: opacity .7s var(--ease), transform .9s var(--ease);
}
.hero[data-stage="4"] .intro { opacity: 0; transform: translateY(-24px); }

.intro__stage { position: relative; width: 100%; height: 140px; text-align: center; }

.intro__word {
  position: absolute;
  left: 0; right: 0;
  top: 0;
  opacity: 0;
  filter: blur(10px);
  transform: translateY(14px);
  transition: opacity .8s var(--ease), filter .9s var(--ease), transform .9s var(--ease-out), letter-spacing 1.2s var(--ease-out);
  letter-spacing: 0.55em;
}
.intro__word.is-active {
  opacity: 1; filter: blur(0); transform: none; letter-spacing: 0.3em;
  transition-delay: .35s;
}
/* Çıkan kelime hızlı söner, gelen kelime ancak sonra belirir — üst üste binme olmaz */
.intro__word.is-past {
  opacity: 0; filter: blur(8px); transform: translateY(-14px); letter-spacing: 0.26em;
  transition-duration: .4s, .45s, .5s, .5s;
  transition-timing-function: var(--ease);
}

.intro__en {
  display: block;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 5.2vw, 58px);
  color: #fff;
  padding-left: 0.3em; /* harf aralığını ortala */
}
/* Türkçe kelimeler daha uzun (SÜRDÜRÜLEBİLİRLİK 17 harf) — ekrana sığsın */
html[lang="tr"] .intro__en { font-size: clamp(20px, 4.4vw, 50px); }
.intro__tr {
  display: block;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--sis);
}

.intro__steps {
  position: absolute;
  bottom: clamp(48px, 10vh, 96px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}
.intro__steps span {
  width: 36px;
  height: 2px;
  background: var(--on-dark-line);
  overflow: hidden;
  position: relative;
}
.intro__steps span::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--sis);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s linear;
}
.intro__steps span.is-done::after { transform: scaleX(1); }

.intro__skip {
  position: absolute;
  right: var(--gutter);
  bottom: clamp(36px, 8vh, 80px);
  pointer-events: auto;
  background: none;
  border: 0;
  color: var(--on-dark-muted);
  font: 500 13px/1 var(--font-text);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 12px 4px;
  transition: opacity .4s;
}
.intro__skip:hover { color: var(--on-dark); }
.hero[data-stage="4"] .intro__skip { opacity: 0; pointer-events: none; }

/* Hero son hâli */
.hero__content {
  position: relative;
  width: 100%;
  padding-top: 120px;
  padding-bottom: 120px;
  text-align: center;
}

.hero__content > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 1s var(--ease), transform 1.1s var(--ease-out);
}
.hero[data-stage="4"] .hero__content > * { opacity: 1; transform: none; }
.hero[data-stage="4"] .hero__content > :nth-child(2) { transition-delay: .12s; }
.hero[data-stage="4"] .hero__content > :nth-child(3) { transition-delay: .32s; }
.hero[data-stage="4"] .hero__content > :nth-child(4) { transition-delay: .48s; }

.tagline {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px 16px;
  margin: 0 0 34px;
  padding: 0;
  list-style: none;
  font-size: clamp(11px, 1.1vw, 13px);
  font-weight: 600;
  letter-spacing: 0.3em;
}
.tagline li { color: rgba(235, 243, 250, 0.62); transition: color 1s var(--ease); }
.tagline li.is-active { color: #fff; }
.tagline .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--sis); opacity: .6; }

.hero h1 {
  font-weight: 300;
  font-size: clamp(38px, 7.4vw, 92px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: #fff;
}
.hero h1 .line { display: block; }
.hero h1 .line + .line { color: var(--logo-ton); }

.hero__sub {
  margin: 30px auto 0;
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}

.hero__actions {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  width: 1px;
  height: 44px;
  background: var(--on-dark-line);
  overflow: hidden;
  opacity: 0;
  transition: opacity 1s var(--ease) .9s;
}
.scroll-cue::after {
  content: "";
  position: absolute;
  left: 0; top: -44px;
  width: 1px; height: 44px;
  background: var(--sis);
  animation: cue 2.4s var(--ease) 3;
}
.hero[data-stage="4"] .scroll-cue { opacity: 1; }
@keyframes cue { to { top: 44px; } }

/* ---------- 01 Biz Kimiz ---------- */

/* Yatay düzen: solda etiket + başlık, sağda metin (sağdaki logo görseli kaldırıldı — içerik incelemesi, 2026-10-19) */
.about { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(36px, 6vw, 96px); align-items: end; }
.about h2 { max-width: 20ch; }
.about .lead { margin-top: 0; max-width: 54ch; }

.stats {
  list-style: none;
  margin: clamp(56px, 7vw, 88px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.stat {
  background: var(--surface);
  border-top: 2px solid var(--celik);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 26px 28px 30px;
}
.stat__title {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 10px;
}
.stat p { font-size: 15.5px; color: var(--muted); }

/* ---------- Entegre strateji temeli ---------- */

.forces {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px) minmax(0, 1fr);
  grid-template-rows: auto auto auto;
  grid-template-areas:
    "reg  core inv"
    "val  core glob"
    ".    risk .";
  gap: 28px clamp(64px, 9vw, 120px);
  align-items: center;
}
.forces .force--risk { margin-top: 56px; }
.forces__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}
/* Çizgiler JS ile gerçek piksel koordinatlarında çizilir (site.js → forces) */
.forces__lines .f-line {
  fill: none;
  stroke: var(--celik);
  stroke-width: 1.3;
  stroke-linecap: round;
  opacity: .6;
  transition: stroke-dashoffset 1s var(--ease-out);
}
.forces__lines .f-end { fill: var(--celik); opacity: 0; transition: opacity .5s var(--ease); }
.forces__lines .f-dot { fill: var(--celik); }
.forces.is-play .f-end { opacity: .9; }

.force {
  position: relative;
  z-index: 1;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.force--reg { grid-area: reg; }
.force--inv { grid-area: inv; }
.force--val { grid-area: val; }
.force--glob { grid-area: glob; }
.force--risk { grid-area: risk; }

.force h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  margin-bottom: 8px;
}
.force h3 svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--celik); }
.force p { font-size: 15px; color: var(--muted); }

.core {
  grid-area: core;
  position: relative;
  z-index: 1;
  justify-self: center;
  width: 100%;
  max-width: 260px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 35%, #343A4B 0%, var(--antrasit) 70%);
  color: #fff;
  display: grid;
  place-content: center;
  text-align: center;
  box-shadow: 0 0 0 26px var(--bg-neutral), 0 24px 50px -24px rgba(34, 38, 47, 0.6);
}
/* Dış halka — sunumdaki noktalı yörünge, yavaşça döner */
.core__ring {
  position: absolute;
  inset: -27px;
  border-radius: 50%;
  border: 1px dashed #A3ACBF;
  pointer-events: none;
}
/* Akış ulaştıkça yayılan nabız */
.core__pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--celik);
  opacity: 0;
  pointer-events: none;
}
/* Sürekli hareket yok (WCAG 2.2.2): nabız iki tur atar; imleç merkeze gelince yeniden oynar */
.forces.is-flow .core__pulse { animation: core-pulse 2.6s var(--ease-out) 2; }
.forces.is-flow .core__pulse--2 { animation-delay: 1.3s; }
@keyframes core-pulse {
  0% { opacity: .55; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.32); }
}

/* Giriş animasyonu */
.forces[data-anim] .core {
  opacity: 0;
  transform: scale(.72);
  transition: opacity .9s var(--ease), transform 1.2s cubic-bezier(.34, 1.4, .64, 1);
}
.forces[data-anim] .core__ring {
  opacity: 0;
  transform: rotate(-50deg);
  transition: opacity 1.2s var(--ease) .5s, transform 3.2s var(--ease-out) .3s;
}
.forces[data-anim] .core__label,
.forces[data-anim] .core__title {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .8s var(--ease), transform .9s var(--ease-out);
}
.forces[data-anim] .core__label { transition-delay: .45s; }
.forces[data-anim] .core__title { transition-delay: .6s; }
.forces[data-anim] .force {
  opacity: 0;
  transform: translate(var(--fx, 0), var(--fy, 0));
  transition: opacity .8s var(--ease), transform 1.1s var(--ease-out), border-color .3s, box-shadow .3s;
  transition-delay: calc(var(--k, 0) * 110ms + 250ms);
}
.force--reg { --fx: -36px; --fy: -14px; --k: 0; }
.force--inv { --fx: 36px; --fy: -14px; --k: 1; }
.force--val { --fx: -36px; --fy: 14px; --k: 2; }
.force--glob { --fx: 36px; --fy: 14px; --k: 3; }
.force--risk { --fx: 0px; --fy: 30px; --k: 4; }

.forces.is-play .core,
.forces.is-play .core__ring,
.forces.is-play .core__label,
.forces.is-play .core__title,
.forces.is-play .force { opacity: 1; transform: none; }
.forces.is-play .core__ring { opacity: 1; }

.core { cursor: default; }
.force:hover { border-color: var(--sis); box-shadow: 0 16px 34px -26px rgba(34, 38, 47, 0.5); }
.core__label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--sis);
  margin-bottom: 8px;
}
.core__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 2.6vw, 32px);
  font-weight: 400;
  line-height: 1.2;
  color: #fff;
}

/* ---------- 02 Hizmetler ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
  counter-reset: none;
}

.pillar__head {
  position: relative;
  padding: 26px 26px 28px;
  color: #fff;
  border-radius: 4px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.pillar--1 .pillar__head { background: var(--antrasit); }
.pillar--2 .pillar__head { background: var(--gece); }
.pillar--3 .pillar__head { background: var(--celik); }

/* Sütunlar arası ok (başlık kırpma animasyonundan etkilenmesin diye sütunda) */
.pillar { position: relative; }
.pillar:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 80px;
  right: calc(-1 * clamp(20px, 3vw, 44px) / 2 - 9px);
  width: 18px;
  height: 12px;
  transform: translateY(-50%);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 12'%3E%3Cpath d='M0 6h15M10 1l5 5-5 5' fill='none' stroke='%238E97AB' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat center / contain;
}

.pillar__step {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: rgba(235, 243, 250, 0.82);
  margin-bottom: 10px;
}
.pillar--3 .pillar__step { color: #fff; } /* çelik mavi zeminde kontrast ≥ 4.5:1 */
.pillar__head h3 { color: #fff; font-size: clamp(22px, 2.3vw, 28px); font-weight: 400; }
.pillar__art { position: absolute; right: 22px; top: 22px; width: 40px; height: 40px; opacity: .55; }
.pillar__art circle { fill: none; stroke: #fff; stroke-width: 2.4; }
.pillar__art line, .pillar__art path { fill: none; stroke: #fff; stroke-width: 2.4; }

.pillar__list { list-style: none; margin: 8px 0 0; padding: 0; }
.pillar__list li {
  position: relative;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 8px;
  padding: 14px 0;
  font-size: 16.5px;
  color: var(--ink);
  line-height: 1.4;
}
.pillar__list li::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--line);
  transform-origin: left;
}
.pillar__list .n { font-weight: 700; font-size: 14.5px; color: var(--celik); padding-top: 1px; }

/* Hizmet mimarisi animasyonu — --p: sütun sırası, --j: satır sırası (JS verir)
   Başlık soldan açılır → simge çizilir (ufuk → yarım kubbe → tam kubbe) → ok → satırlar */
.pillar { --t: calc(var(--p, 0) * 0.5s); }
.pillars[data-anim] .pillar__head {
  clip-path: inset(0 100% 0 0);
  transition: clip-path 1s cubic-bezier(.65, 0, .35, 1) var(--t);
}
.pillars[data-anim] .pillar__step,
.pillars[data-anim] .pillar__head h3 {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .7s var(--ease) calc(var(--t) + .45s), transform .8s var(--ease-out) calc(var(--t) + .45s);
}
.pillars[data-anim] .pillar__head h3 { transition-delay: calc(var(--t) + .55s); }
.pillars[data-anim] .pillar__art > * {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1.1s var(--ease-out) calc(var(--t) + .55s);
}
.pillars[data-anim] .pillar__art > :nth-child(n+3) { transition-delay: calc(var(--t) + .9s); }
.pillars[data-anim] .pillar:not(:last-child)::after {
  opacity: 0;
  transform: translate(-8px, -50%);
  transition: opacity .5s var(--ease) calc(var(--t) + .7s), transform .6s var(--ease-out) calc(var(--t) + .7s);
}
.pillars[data-anim] .pillar__list li {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .5s var(--ease) calc(var(--t) + .6s + var(--j, 0) * 60ms), transform .6s var(--ease-out) calc(var(--t) + .6s + var(--j, 0) * 60ms);
}
.pillars[data-anim] .pillar__list li::after {
  transform: scaleX(0);
  transition: transform .8s var(--ease-out) calc(var(--t) + .7s + var(--j, 0) * 60ms);
}

.pillars.is-play .pillar__head { clip-path: inset(0 0 0 0); }
.pillars.is-play .pillar__step,
.pillars.is-play .pillar__head h3,
.pillars.is-play .pillar__list li { opacity: 1; transform: none; }
.pillars.is-play .pillar__art > * { stroke-dashoffset: 0; }
.pillars.is-play .pillar:not(:last-child)::after { opacity: 1; transform: translate(0, -50%); }
.pillars.is-play .pillar__list li::after { transform: scaleX(1); }

/* Hizmet satırları — JS her satırı iletişim formuna giden bağlantıya çevirir (.is-linked)
   Tıklanınca ilgili adım seçilir ve mesaja "İlgilendiğim hizmet: …" yazılır. */
.pillars.is-linked .pillar__list li { display: block; padding: 0; }
.svc {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: 36px 1fr 18px;
  gap: 8px;
  align-items: start;
  padding: 14px 0;
  color: inherit;
  text-decoration: none;
  border-radius: 10px;
}
.svc:hover { color: inherit; }
.svc .t { display: block; transition: transform .35s var(--ease-out), color .3s; }
.svc .n { transition: color .3s, transform .35s var(--ease-out); transform-origin: left center; }
.svc .go {
  align-self: center;
  width: 18px; height: 18px;
  color: var(--celik);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity .3s var(--ease), transform .35s var(--ease-out);
}
/* Vurgu zemini — soldan açılır */
.svc::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 3px; bottom: 3px;
  left: -12px; right: -12px;
  border-radius: 10px;
  background: var(--bg-alt);
  transform: scaleX(.92);
  transform-origin: left center;
  opacity: 0;
  transition: opacity .3s var(--ease), transform .45s var(--ease-out);
}
.svc:focus-visible { outline-offset: 2px; }
.svc:focus-visible::before { opacity: 1; transform: none; }
.svc:focus-visible .go { opacity: 1; transform: none; }

/* Sütun düzeyi etkiler için geçişler (giriş animasyonunun gecikmesi korunur) */
.pillars.is-play .pillar__head {
  transition: clip-path 1s cubic-bezier(.65, 0, .35, 1) var(--t), transform .45s var(--ease-out) 0s, box-shadow .45s var(--ease) 0s;
}
.pillars.is-settled .pillar__head { clip-path: none; } /* animasyon bitti: gölge kırpılmasın */
.pillar__art { transition: transform .6s var(--ease-out), opacity .4s; }
.pillar { transition: opacity .4s var(--ease); }

@media (hover: hover) and (pointer: fine) and (min-width: 761px) {
  /* Üzerinde olunan sütun öne çıkar, diğerleri hafifçe geri çekilir */
  .pillars.is-linked:hover .pillar:not(:hover) { opacity: .6; }
  .pillar:hover .pillar__head { transform: translateY(-4px); box-shadow: 0 18px 36px -22px rgba(34, 38, 47, 0.55); }
  .pillar:hover .pillar__art { opacity: .9; transform: rotate(-10deg) scale(1.08); }

  /* Satır */
  .svc:hover::before { opacity: 1; transform: none; }
  .svc:hover .t { transform: translateX(6px); color: var(--derin); }
  .svc:hover .n { color: var(--ink); transform: scale(1.08); }
  .svc:hover .go { opacity: 1; transform: none; }
}

/* Mobil adım gezinmesi — masaüstünde gizli */
.pillar-nav { display: none; }

.services-note { margin-top: 36px; font-size: 15px; color: var(--muted); }

/* ---------- 03 Neden biz (koyu) ---------- */

.principles-section { background: var(--antrasit); color: var(--on-dark); }
.principles-section h2 { color: #fff; }
.principles-section .eyebrow { color: var(--sis); }
.principles-section .kicker { color: var(--on-dark-muted); }

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}
/* Dört ilke — çizilerek beliren özel ikonlar. --i: sütun sırası (gecikme) */
.principle { position: relative; padding-top: 28px; --base: calc(var(--i, 0) * 180ms); }
.principle::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 1px;
  background: rgba(235, 243, 250, 0.3);
  transform-origin: left;
}
.principle__top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 22px; }
.principle__num { font-size: 14px; font-weight: 700; color: var(--on-dark-muted); letter-spacing: 0.04em; }
.principle h3 { color: #fff; font-size: clamp(22px, 2.2vw, 27px); font-weight: 400; margin-bottom: 12px; }
.principle p { color: var(--on-dark-muted); font-size: 16px; }

.p-icon { width: 76px; height: 76px; overflow: visible; transition: transform .5s var(--ease-out); }
.p-icon .ring { fill: none; stroke: rgba(157, 186, 213, 0.4); stroke-width: 1; transition: stroke .4s; }
.p-icon .ring-glow { fill: rgba(157, 186, 213, 0.06); stroke: none; }
.p-icon .ln {
  fill: none;
  stroke: var(--buz);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.p-icon .acc { stroke: var(--sis); }
.p-icon .soft { fill: rgba(157, 186, 213, 0.18); }
.p-icon .dot { fill: var(--sis); }
.principle:hover .p-icon { transform: translateY(-3px); }
.principle:hover .p-icon .ring { stroke: var(--sis); }

/* Başlangıç durumları (yalnızca animasyon etkinken) */
.principles[data-anim] .principle::before { transform: scaleX(0); transition: transform 1.1s var(--ease-out) var(--base); }
.principles[data-anim] .draw { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset var(--dur, 1.1s) var(--ease-out) calc(var(--base) + var(--d, 0s)); }
.principles[data-anim] .fade { opacity: 0; transition: opacity .6s var(--ease) calc(var(--base) + var(--d, 0s)); }
.principles[data-anim] .drop { opacity: 0; transform: translateY(-7px); transition: opacity .6s var(--ease) calc(var(--base) + var(--d, 0s)), transform .8s cubic-bezier(.34, 1.5, .64, 1) calc(var(--base) + var(--d, 0s)); }
.principles[data-anim] .grow { transform-box: fill-box; transform-origin: 50% 100%; transform: scaleY(0); transition: transform .9s cubic-bezier(.34, 1.3, .64, 1) calc(var(--base) + var(--d, 0s)); }
.principles[data-anim] .rise { opacity: 0; transform: translateY(14px); transition: opacity .8s var(--ease) calc(var(--base) + var(--d, 0s)), transform .9s var(--ease-out) calc(var(--base) + var(--d, 0s)); }

.principles.is-play .principle::before { transform: scaleX(1); }
.principles.is-play .draw { stroke-dashoffset: 0; }
.principles.is-play .fade,
.principles.is-play .drop,
.principles.is-play .rise { opacity: 1; transform: none; }
.principles.is-play .grow { transform: scaleY(1); }

/* Zamansız: sonsuzluk üzerinde dolaşan nokta — çizim bitince görünür */
.p-icon .orbit-dot { opacity: 0; transition: opacity .6s var(--ease); }
.principles.is-loop .p-icon .orbit-dot { opacity: 1; }

.approach-note {
  margin-top: clamp(48px, 6vw, 72px);
  padding-top: 28px;
  border-top: 1px solid var(--on-dark-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 32px;
}
.approach-note p { color: var(--on-dark-muted); max-width: 62ch; }
.approach-note strong { color: #fff; font-weight: 500; }

/* ---------- İletişim ---------- */

.contact { background: var(--bg-alt); }

.contact__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 96px); align-items: start; }

.contact__list { list-style: none; margin: 40px 0 0; padding: 0; border-top: 1px solid var(--line); }
.contact__list li { padding: 20px 0; border-bottom: 1px solid var(--line); }
.contact__list span {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.contact__list a { color: var(--ink); font-size: 18px; text-decoration: none; word-break: break-word; }
.contact__list a:hover { color: var(--accent); text-decoration: underline; }

.form {
  background: var(--surface);
  color: var(--ink-body);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(26px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  box-shadow: 0 30px 60px -48px rgba(34, 38, 47, 0.5);
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.field label .opt { font-weight: 400; color: var(--muted); }
.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  border: 1px solid #7F889E;
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.5 var(--font-text);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.field textarea { min-height: 140px; resize: vertical; }
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%235E6678' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(70, 105, 138, 0.18);
}
.field [aria-invalid="true"] { border-color: var(--error); }
.field__error { font-size: 13.5px; color: var(--error); }
.field__error:empty { display: none; }

/* Bot tuzağı — görünmez */
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

.check { grid-column: 1 / -1; display: grid; grid-template-columns: 22px 1fr; gap: 12px; align-items: start; font-size: 14.5px; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--antrasit); }
.check label { color: var(--ink-body); }

.form__foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; margin-top: 4px; }
.form__status { grid-column: 1 / -1; font-size: 15px; color: var(--ink); background: var(--bg-alt); border-radius: 10px; padding: 14px 16px; border-left: 3px solid var(--celik); }
.form__status:empty { display: none; }
.form__status.is-success { border-left-color: var(--success); }
.form__status.is-error { border-left-color: var(--error); }
/* Gönderim sürerken: soldaki çizgi yavaşça nabız atar */
.form__status.is-pending { animation: status-wait 1.6s var(--ease) infinite alternate; }
@keyframes status-wait { from { border-left-color: var(--celik); } to { border-left-color: var(--sis); } }
@media (prefers-reduced-motion: reduce) { .form__status.is-pending { animation: none; } }

/* ---------- Footer ---------- */

.site-footer { background: var(--derin); color: var(--on-dark-muted); padding: 72px 0 36px; font-size: 15px; }
.footer__top { display: grid; grid-template-columns: minmax(0, 5fr) repeat(2, minmax(0, 3fr)); gap: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--on-dark-line); }
.footer__brand img { width: 190px; height: auto; }
.footer__tag { margin-top: 18px; font-size: 11.5px; font-weight: 600; letter-spacing: 0.26em; color: var(--sis); }
.footer__motto { margin-top: 20px; font-family: var(--font-display); font-size: 18px; color: var(--on-dark); }
.footer__col h2 { font-family: var(--font-text); font-size: 12px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--on-dark); margin-bottom: 16px; max-width: none; }
.footer__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer__col a { color: var(--on-dark-muted); text-decoration: none; }
.footer__col a:hover { color: #fff; text-decoration: underline; }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 28px; font-size: 13.5px; }
.footer__bottom a { color: var(--on-dark-muted); }
.footer__bottom a:hover { color: #fff; }

/* ---------- Kaydırınca beliren öğeler ---------- */

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform 1s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-group > .reveal:nth-child(2) { transition-delay: .1s; }
.reveal-group > .reveal:nth-child(3) { transition-delay: .2s; }
.reveal-group > .reveal:nth-child(4) { transition-delay: .3s; }
.reveal-group > .reveal:nth-child(5) { transition-delay: .4s; }
.reveal-group > .reveal:nth-child(6) { transition-delay: .5s; }

/* ---------- Yasal sayfa ---------- */

.legal-hero { background: var(--derin); color: var(--on-dark); padding: 168px 0 72px; }
.legal-hero h1 { color: #fff; font-weight: 300; font-size: clamp(32px, 5vw, 52px); line-height: 1.12; }
.legal-hero p { margin-top: 18px; color: var(--on-dark-muted); }
.legal { padding: 72px 0 112px; }
.legal__body { max-width: 760px; }
.legal__body h2 { font-family: var(--font-text); font-size: 20px; font-weight: 600; margin: 44px 0 14px; max-width: none; }
.legal__body p + p, .legal__body ul { margin-top: 14px; }
.legal__body ul { padding-left: 20px; }
.legal__body li + li { margin-top: 6px; }
.legal__body table { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: 15px; }
.legal__body th, .legal__body td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.legal__body th { color: var(--ink); font-weight: 600; width: 34%; }

/* ---------- Duyarlı düzen ---------- */

@media (max-width: 1080px) {
  .forces {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "core core"
      "reg  inv"
      "val  glob"
      "risk risk";
    gap: 20px;
  }
  .forces__lines { display: none; }
  .forces .force--risk { margin-top: 0; }
  .core { max-width: 220px; margin-bottom: 36px; }
  .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 28px; }
}

@media (max-width: 960px) {
  .menu-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 40px;
    padding: 100px var(--gutter) 40px;
    background: var(--derin);
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s var(--ease), visibility .35s;
  }
  .nav__list { flex-direction: column; gap: 6px; }
  .nav__list a { font-family: var(--font-display); font-size: 30px; font-weight: 300; color: var(--on-dark) !important; }
  .nav__actions { flex-direction: row-reverse; gap: 24px; }
  .site-header .nav .lang { color: var(--on-dark-muted) !important; }
  .site-header .nav .lang [aria-current="page"] { color: var(--on-dark) !important; }
  .nav__cta { background: var(--buz) !important; color: var(--derin) !important; }
  body.menu-open { overflow: hidden; }
  body.menu-open .nav { opacity: 1; visibility: visible; }
  body.menu-open .site-header { background: transparent; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
  body.menu-open .site-header .brand__light { opacity: 1; }
  body.menu-open .site-header .brand__dark { opacity: 0; }
  body.menu-open .menu-toggle { color: var(--on-dark); }
  body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
  body.menu-open .menu-toggle span:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }

  .about, .contact__grid { grid-template-columns: 1fr; }
  .about { gap: 0; }
  .about .lead { margin-top: 22px; }
  .stats { grid-template-columns: 1fr; gap: 14px; }

  .pillars { grid-template-columns: 1fr; gap: 40px; }
  .pillar:not(:last-child)::after { display: none; }
  .pillar__head { min-height: 0; }

  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .site-header__inner { height: 68px; }
  .brand { width: 140px; height: 40px; }
  .forces { grid-template-columns: 1fr; grid-template-areas: "core" "reg" "inv" "val" "glob" "risk"; }
  .core { max-width: 200px; box-shadow: 0 0 0 18px var(--bg-neutral), 0 20px 40px -24px rgba(34, 38, 47, 0.6); }
  .core__ring { inset: -19px; }
  .principles { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; }
  .hero__actions .btn { width: 100%; }
  .intro__tr { font-size: 12px; }
  .tagline { flex-direction: column; gap: 8px; margin-bottom: 28px; }
  .tagline .dot { display: none; }
  .hero__sub { letter-spacing: 0.18em; }
  .footer__top { grid-template-columns: 1fr; }
}

/* =====================================================================
   MOBİL TASARIM (≤ 760px) — masaüstü deneyiminin mobile özgü karşılığı
   ===================================================================== */

.m-cta { display: none; }
.swipe-hint { display: none; }

@media (max-width: 760px) {
  :root { --section-y: 76px; }
  .section__head { margin-bottom: 36px; }
  h2 { font-size: clamp(29px, 8vw, 36px); }
  .kicker { font-size: 16px; margin-bottom: 10px; }
  .eyebrow { margin-bottom: 16px; font-size: 12px; }

  /* --- Açılış: en uzun kelime (TRANSFORMATION) 320px ekranda da sığsın --- */
  .intro__en { font-size: 6vw; padding-left: 0.2em; }
  html[lang="tr"] .intro__en { font-size: 4.9vw; }
  .intro__word { letter-spacing: 0.4em; }
  .intro__word.is-active { letter-spacing: 0.2em; }
  .intro__word.is-past { letter-spacing: 0.17em; }
  .hero__content { padding-top: 96px; padding-bottom: 104px; }

  /* --- Biz Kimiz --- */
  .about .lead { margin-top: 16px; }

  .stats {
    margin-top: 28px;
    gap: 0;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
  }
  .stat {
    border-top: 0;
    border-left: 3px solid var(--celik);
    border-radius: 0;
    padding: 18px 20px 20px;
  }
  .stat + .stat { box-shadow: inset 0 1px 0 var(--line); }
  .stat__title { font-size: 23px; margin-bottom: 4px; }
  .stat p { font-size: 15px; }

  /* --- Baskı çok yönlü geliyor: merkez üstte, kartlar sol hatla yukarı bağlanır --- */
  .forces { display: flex; flex-direction: column; align-items: stretch; gap: 12px; }
  .forces__lines { display: block; }
  .force { margin-left: 34px; padding: 16px 18px; }
  .force h3 { font-size: 18px; gap: 10px; margin-bottom: 6px; }
  .force h3 svg { width: 20px; height: 20px; }
  .force p { font-size: 14.5px; }
  .forces .force--risk { margin-top: 0; }
  .force--reg, .force--inv, .force--val, .force--glob, .force--risk { --fx: -18px; --fy: 0px; }
  .core { order: -1; align-self: center; width: 200px; max-width: 200px; margin: 18px auto 44px; box-shadow: 0 0 0 20px var(--bg-neutral), 0 20px 40px -24px rgba(34, 38, 47, 0.6); }
  .core__ring { inset: -21px; }
  /* Önce merkez, sonra kartlar, sonra hatlar */
  .force--reg { --k: 2; } .force--inv { --k: 3; } .force--val { --k: 4; } .force--glob { --k: 5; } .force--risk { --k: 6; }
  .forces__lines .f-node { fill: var(--bg-neutral); stroke: var(--celik); stroke-width: 1.5; opacity: 0; transition: opacity .5s var(--ease); }
  .forces.is-play .f-node { opacity: 1; }

  /* --- Hizmetler: yana kaydırılan üç kart + adım gezinmesi --- */
  .pillar-nav {
    display: flex;
    position: relative;
    margin: -8px 0 6px;
    padding-bottom: 2px;
  }
  .pillar-nav button {
    flex: 1;
    min-height: 46px;
    border: 0;
    background: none;
    padding: 10px 0;
    text-align: left;
    font: 600 13.5px/1.2 var(--font-text);
    color: var(--muted);
    cursor: pointer;
    transition: color .3s;
  }
  .pillar-nav button span { color: var(--celik); }
  .pillar-nav button[aria-current="true"] { color: var(--ink); }
  .pillar-nav__bar { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
  .pillar-nav__bar i { position: absolute; top: 0; bottom: 0; left: 0; width: 33.334%; background: var(--celik); border-radius: 2px; transform: translateX(calc(var(--k, 0) * 100%)); transition: transform .45s var(--ease-out); }

  .swipe-hint {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    margin: 0 0 12px;
    font-size: 12.5px;
    color: var(--muted);
    transition: opacity .4s;
  }
  .swipe-hint svg { width: 16px; height: 16px; animation: nudge 1.6s var(--ease) 3; }
  .swipe-hint.is-gone { opacity: 0; }
  @keyframes nudge { 50% { transform: translateX(4px); } }

  .pillars {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    overscroll-behavior-x: contain;
    margin: 0 calc(-1 * var(--gutter));
    padding: 4px var(--gutter) 22px;
    scroll-padding: 0 var(--gutter);
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .pillars::-webkit-scrollbar { display: none; }
  .pillar {
    flex: 0 0 86%;
    scroll-snap-align: start;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 22px 44px -34px rgba(34, 38, 47, 0.55);
  }
  .pillar__head { border-radius: 0; min-height: 132px; padding: 22px 22px 22px; }
  .pillar__art { width: 34px; height: 34px; right: 18px; top: 18px; }
  .pillar__list { margin: 4px 0 0; padding: 0 18px 6px; }
  .pillar__list li { grid-template-columns: 32px 1fr; font-size: 15.5px; padding: 12px 0; }
  .svc { grid-template-columns: 32px 1fr 16px; padding: 12px 0; }
  .svc .go { opacity: .55; transform: none; width: 16px; height: 16px; } /* dokunmatikte tıklanabilir olduğu görünsün */
  .svc::before { left: -8px; right: -8px; }
  .svc:active::before { opacity: 1; transform: none; }
  .pillar__list li:last-child::after { display: none; }
  .pillar__list .n { font-size: 13.5px; }

  /* --- Dört ilke: ikon solda, metin sağda --- */
  .principles { grid-template-columns: 1fr; gap: 0; }
  .principle {
    display: grid;
    grid-template-columns: 64px 1fr;
    column-gap: 18px;
    align-items: start;
    padding: 22px 0 24px;
  }
  .principle__top { grid-row: 1 / span 2; margin: 0; display: block; }
  .principle__num { position: absolute; top: 24px; right: 0; font-size: 12.5px; }
  .p-icon { width: 64px; height: 64px; }
  .principle h3 { font-size: 21px; margin: 6px 0 6px; padding-right: 30px; }
  .principle p { font-size: 15px; }
  .approach-note { margin-top: 28px; }
  .approach-note .btn { width: 100%; }

  /* --- İletişim --- */
  .contact__list { margin-top: 24px; }
  .contact__list a { font-size: 17px; display: inline-block; padding: 11px 0; margin: -11px 0; }
  .check input { width: 24px; height: 24px; margin-top: 0; }
  .check { grid-template-columns: 26px 1fr; }

  /* Dokunma hedefleri ≥ 44px */
  .brand { height: 44px; }
  .footer__col ul { gap: 0; }
  .footer__col a, .footer__bottom a { display: inline-block; padding: 12px 0; }
  .footer__bottom { padding-top: 16px; }
  .form { padding: 22px 18px; border-radius: 16px; }

  /* --- Sabit alt buton --- */
  .m-cta {
    display: flex;
    position: fixed;
    left: 16px; right: 16px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    z-index: 40;
    height: 54px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 999px;
    background: var(--antrasit);
    color: var(--buz);
    font: 600 15px/1 var(--font-text);
    text-decoration: none;
    box-shadow: 0 18px 36px -14px rgba(34, 38, 47, 0.65), 0 0 0 1px rgba(235, 243, 250, 0.08);
    transform: translateY(150%);
    opacity: 0;
    visibility: hidden; /* gizliyken odak sırasına girmesin */
    transition: transform .45s var(--ease-out), opacity .3s var(--ease), visibility 0s linear .45s;
  }
  .m-cta svg { width: 16px; height: 16px; }
  .m-cta:hover, .m-cta:focus-visible { color: #fff; }
  .m-cta:focus-visible { outline-color: var(--sis); }
  .m-cta.is-shown { transform: none; opacity: 1; visibility: visible; transition-delay: 0s; }
  body.menu-open .m-cta, body.is-intro .m-cta { opacity: 0; pointer-events: none; }
  .site-footer { padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px)); }
}

/* ---------- Hareket azaltma ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
    animation: none !important;
  }
  .reveal { opacity: 1; transform: none; }
}