/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.relative{position:relative}.start{inset-inline-start:var(--spacing)}.table{display:table}}


/* Geist, siteyle birlikte yayınlanır. Daha önce next/font çıktısı derleme
   makinesinin yerel disk yolunu (file:///C:/...) gömdüğü için font hiçbir
   ziyaretçide yüklenemiyor, site Arial'a düşüyordu. */
@font-face {
  font-family: "Geist";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/geist-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Geist";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/geist-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --navy: #0b326a;
  --navy-deep: #061a34;
  --navy-soft: #174b88;
  --ink: #17191b;
  --muted: #666b70;
  --line: #d8d7d2;
  --paper: #f1efe9;
  --white: #ffffff;
  --accent: #b9d4ee;
  --font-geist-sans: "Geist", "Segoe UI", Arial, sans-serif;
  --motion-ease: cubic-bezier(.2, .8, .2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-geist-sans), Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; }
::selection { background: var(--navy); color: var(--white); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 90px;
  display: grid;
  grid-template-columns: 310px 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 0 4.5vw;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(23, 25, 27, .11);
  backdrop-filter: blur(14px);
}
.brand { width: 285px; }
.brand img { width: 100%; height: auto; }
.desktop-nav { display: flex; justify-content: center; gap: clamp(22px, 3vw, 46px); }
.desktop-nav a {
  position: relative;
  padding: 8px 0;
  font-size: 12px;
  font-weight: 620;
  letter-spacing: .025em;
}
.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--navy);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .28s ease;
}
.desktop-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.header-cta {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 48px;
  padding: 0 22px;
  background: var(--navy);
  color: white;
  font-size: 12px;
  font-weight: 700;
  transition: background .25s, transform .25s;
}
.header-cta:hover { background: var(--navy-deep); transform: translateY(-1px); }
.header-cta span { font-size: 17px; }
.mobile-menu { display: none; }

.hero {
  position: relative;
  min-height: calc(100svh - 90px);
  display: grid;
  /* Tek sütun: metin ve künye aynı hücrede, biri sola biri sağa yaslanır. */
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  overflow: hidden;
  background: var(--navy-deep);
  color: white;
}
/* Arka plan: poster görsel + üstünde video. Video yüklenmezse (mobil, veri
   tasarrufu, hareketi azalt, otomatik oynatma engeli) poster olduğu gibi kalır. */
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img,
.hero-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* --hero-focus: kadrajın odak noktası, --par: scroll'daki hafif kayma. */
  object-position: center calc(var(--hero-focus, 46%) + var(--par, 0%));
}
.hero-media video { opacity: 0; transition: opacity 1.4s ease; }
.hero-media video[data-hero-video-on] { opacity: 1; }
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(96deg, rgba(4, 14, 30, .90) 0%, rgba(4, 14, 30, .80) 34%, rgba(4, 14, 30, .40) 68%, rgba(4, 14, 30, .54) 100%),
    linear-gradient(180deg, rgba(4, 14, 30, .40) 0%, rgba(4, 14, 30, 0) 32%, rgba(4, 14, 30, .58) 100%);
}
.hero-copy {
  position: relative;
  z-index: 1;
  grid-row: 1;
  grid-column: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* Sağ alttaki künyeye çarpmasın diye metin sola bağlı kalır. */
  max-width: min(1180px, 64%);
  padding: 9vh 4.5vw 8vh 6.2vw;
}
.hero h1 em { color: var(--accent); }
/* Video üzerinde en yüksek okunurluk: birincil çağrı beyaz zeminde. */
.hero .button--primary { background: white; color: var(--navy-deep); }
.hero .button--primary:hover { background: var(--accent); }
.hero .text-link { border-bottom-color: rgba(255, 255, 255, .5); }
.hero .text-link:hover { color: var(--accent); border-bottom-color: var(--accent); }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 30px;
  color: var(--navy);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.eyebrow > span { width: 34px; height: 2px; background: currentColor; }
.hero h1 {
  max-width: 910px;
  margin: 0;
  font-size: clamp(51px, 5.25vw, 91px);
  font-weight: 620;
  line-height: .98;
  letter-spacing: -.06em;
}
h1 em, h2 em, .statement em {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}
.hero-copy-bottom {
  display: grid;
  grid-template-columns: minmax(250px, 450px) auto;
  align-items: end;
  gap: clamp(26px, 3.5vw, 58px);
  margin-top: clamp(42px, 6vh, 76px);
}
.hero-copy-bottom > p {
  margin: 0;
  color: rgba(255, 255, 255, .74);
  font-size: 15px;
  line-height: 1.72;
}
.hero-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-width: 215px;
  padding: 18px 20px;
  font-size: 12px;
  font-weight: 740;
  transition: transform .25s, background .25s, color .25s;
}
.button:hover { transform: translateY(-2px); }
.button--primary { background: var(--navy); color: white; }
.button--primary:hover { background: var(--navy-deep); }
.button--light { min-width: 240px; background: white; color: var(--navy-deep); }
.button--light:hover { background: var(--accent); }
.text-link { padding-bottom: 5px; border-bottom: 1px solid #a7a8aa; font-size: 11px; font-weight: 680; }
.text-link span { margin-left: 10px; }
/* Görsel künyesi: hero'nun sağ alt köşesinde, künye şeridinin üstünde. */
.hero-caption {
  position: relative;
  z-index: 1;
  grid-row: 1;
  grid-column: 1;
  justify-self: end;
  align-self: end;
  padding: 0 6.2vw 52px;
  text-align: right;
  color: white;
  /* Kadrajın sağ tarafı açık renkli olduğunda da okunur kalsın. */
  text-shadow: 0 1px 20px rgba(4, 14, 30, .6);
}
.hero-caption span { display: block; font-size: 25px; font-weight: 780; letter-spacing: .17em; }
.hero-caption small { display: block; margin-top: 6px; color: rgba(255, 255, 255, .7); font-size: 9px; letter-spacing: .2em; text-transform: uppercase; }
.hero-proof {
  position: relative;
  z-index: 1;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding-left: 6.2vw;
  background: rgba(4, 15, 32, .58);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, .16);
  color: white;
}
.hero-proof > div {
  min-height: 108px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 7px;
  padding: 24px 4vw 22px 0;
  border-right: 1px solid rgba(255, 255, 255, .15);
}
.hero-proof > div + div { padding-left: 3.5vw; }
.hero-proof strong { color: white; font-size: 16px; font-weight: 650; letter-spacing: -.01em; white-space: nowrap; }
.hero-proof span { color: rgba(255, 255, 255, .62); font-size: 10px; line-height: 1.45; letter-spacing: .1em; text-transform: uppercase; }

.section { padding: 126px 6.2vw; }
.section-index {
  margin-bottom: 70px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: #777b7e;
  font-size: 9px;
  font-weight: 760;
  letter-spacing: .18em;
}
.section-index--light { color: rgba(255, 255, 255, .52); border-color: rgba(255, 255, 255, .17); }
.approach {
  display: grid;
  grid-template-columns: 16% 45% 1fr;
  gap: 48px;
  background: var(--paper);
}
.approach .section-index { grid-column: 1 / -1; margin-bottom: 20px; }
.approach-intro { grid-column: 1 / 3; }
.approach-intro h2, .section-heading-row h2, .process h2, .contact h2 {
  margin: 0;
  font-size: clamp(42px, 5.1vw, 80px);
  font-weight: 570;
  line-height: 1.04;
  letter-spacing: -.055em;
}
.approach-body { padding-top: 48px; }
.approach-body p { color: var(--muted); font-size: 14px; line-height: 1.8; }
.approach-body .lead { margin-top: 0; color: var(--ink); font-size: 20px; line-height: 1.55; }
.principles { margin-top: 36px; border-top: 1px solid var(--line); }
.principles span {
  display: block;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 10px;
  font-weight: 720;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.services { background: white; }
.section-heading-row {
  display: grid;
  grid-template-columns: 1.45fr .55fr;
  align-items: end;
  gap: 10vw;
}
.section-heading-row > p { margin: 0 0 6px; color: var(--muted); font-size: 14px; line-height: 1.78; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 92px; border-top: 1px solid var(--line); }
.service-item { position: relative; min-height: 350px; padding: 28px 28px 36px 0; border-right: 1px solid var(--line); }
.service-item + .service-item { padding-left: 28px; }
.service-number { color: var(--navy); font: italic 19px Georgia, serif; }
.service-item h3 { max-width: 210px; margin: 76px 0 20px; font-size: 20px; font-weight: 650; line-height: 1.2; letter-spacing: -.025em; }
.service-item p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.78; }
.service-arrow { position: absolute; right: 22px; bottom: 22px; color: var(--navy); font-size: 20px; transition: transform .25s; }
.service-item:hover .service-arrow { transform: translate(4px, -4px); }

.foundation {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  column-gap: 9vw;
  background: var(--navy-deep);
  color: white;
}
.foundation .section-index { grid-column: 1 / -1; }
.foundation-heading h2 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(42px, 5.1vw, 80px);
  font-weight: 570;
  line-height: 1.04;
  letter-spacing: -.055em;
}
.foundation-heading h2 em { color: var(--accent); }
.foundation-heading > p:last-child {
  max-width: 670px;
  margin: 44px 0 0;
  color: rgba(255, 255, 255, .64);
  font-size: 14px;
  line-height: 1.84;
}
.foundation-grid { border-top: 1px solid rgba(255, 255, 255, .2); }
.foundation-item {
  min-height: 136px;
  display: grid;
  grid-template-columns: 52px 1fr;
  align-items: start;
  gap: 22px;
  padding: 27px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}
.foundation-item > span { color: var(--accent); font: italic 18px Georgia, serif; }
.foundation-item h3 { margin: 0 0 10px; font-size: 17px; font-weight: 620; letter-spacing: -.02em; }
.foundation-item p { max-width: 540px; margin: 0; color: rgba(255, 255, 255, .57); font-size: 11px; line-height: 1.72; }

.experience { background: #e7e4dd; }
.section-heading-row--experience { grid-template-columns: 1.3fr .7fr; }
.experience-grid {
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  align-items: start;
  gap: 42px;
  margin-top: 86px;
}
.experience-card:nth-child(2) { margin-top: 138px; }
.experience-image { position: relative; height: 650px; overflow: hidden; background: #c8c6c0; }
.experience-card:nth-child(2) .experience-image { height: 520px; }
.experience-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(3, 18, 37, .32));
}
.experience-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .75s cubic-bezier(.2, .8, .2, 1), filter .4s;
}
.experience-card:first-child .experience-image img { object-position: center center; }
.experience-card:nth-child(2) .experience-image img { object-position: center 40%; }
.experience-card:hover .experience-image img { transform: scale(1.025); filter: saturate(.9); }
.experience-count {
  position: absolute;
  z-index: 2;
  top: 18px;
  right: 18px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, .92);
  color: var(--navy);
  font-size: 10px;
  font-weight: 750;
}
.experience-meta { display: grid; grid-template-columns: .8fr 1.2fr; gap: 26px; padding-top: 18px; }
.experience-meta span { color: var(--navy); font-size: 9px; font-weight: 720; letter-spacing: .1em; text-transform: uppercase; }
.experience-meta h3 { margin: 8px 0 0; font-size: 20px; font-weight: 650; line-height: 1.18; letter-spacing: -.025em; }
.experience-meta p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.72; }
.experience-note {
  max-width: 880px;
  margin: 38px 0 0 auto;
  padding-top: 20px;
  border-top: 1px solid #cdcbc5;
  color: #797c7f;
  font-size: 9px;
  line-height: 1.7;
  text-align: right;
}

.process { background: var(--navy-deep); color: white; }
.eyebrow--light { color: var(--accent); }
.eyebrow--dark { color: var(--navy); }
.process h2 em { color: var(--accent); }
.process-heading { display: grid; grid-template-columns: .55fr 1.45fr; align-items: start; }
.process-heading h2 { grid-column: 2; }
.process-list { margin-top: 96px; border-top: 1px solid rgba(255, 255, 255, .2); }
.process-step {
  min-height: 122px;
  display: grid;
  grid-template-columns: 100px .72fr 1.2fr 50px;
  align-items: center;
  gap: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
  transition: background .25s, padding .25s;
}
.process-step:hover { padding: 0 18px; background: rgba(255, 255, 255, .035); }
.process-step > span { color: var(--accent); font: italic 19px Georgia, serif; }
.process-step h3 { font-size: 21px; font-weight: 580; }
.process-step p { max-width: 560px; color: rgba(255, 255, 255, .61); font-size: 12px; line-height: 1.72; }
.process-step i { justify-self: end; color: var(--accent); font-size: 22px; font-style: normal; }

.statement {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: white;
}
.statement p {
  position: relative;
  z-index: 2;
  max-width: 1180px;
  margin: 0;
  text-align: center;
  font-size: clamp(37px, 4.8vw, 74px);
  font-weight: 520;
  line-height: 1.15;
  letter-spacing: -.048em;
}
.statement-mark { position: absolute; color: #f0f0ed; font: 700 570px/1 Arial, sans-serif; transform: translateY(-8px); }

.contact {
  display: grid;
  grid-template-columns: 1.4fr .6fr;
  column-gap: 10vw;
  background: var(--navy);
  color: white;
}
.contact .section-index { grid-column: 1 / -1; }
.contact h2 em { color: var(--accent); }
.contact-main > p:not(.eyebrow) { max-width: 640px; margin: 36px 0; color: rgba(255, 255, 255, .68); font-size: 15px; line-height: 1.78; }
.contact-actions { display: flex; align-items: center; gap: 28px; }
.contact-side { padding-top: 72px; }
.contact-side > div { padding: 22px 0; border-top: 1px solid rgba(255, 255, 255, .23); }
.contact-side > div:last-child { border-bottom: 1px solid rgba(255, 255, 255, .23); }
.contact-side span { display: block; margin-bottom: 8px; color: var(--accent); font-size: 9px; font-weight: 750; letter-spacing: .15em; text-transform: uppercase; }
.contact-side a, .contact-side p { margin: 0; font-size: 13px; line-height: 1.65; overflow-wrap: anywhere; }
.contact-side a { transition: color .2s; }
.contact-side a:hover { color: var(--accent); }

footer {
  min-height: 210px;
  display: grid;
  grid-template-columns: 280px 1fr auto;
  align-items: center;
  gap: 42px;
  padding: 48px 6.2vw;
  background: #040f20;
  color: white;
}
.footer-brand { width: 260px; }
.footer-brand img { width: 100%; height: auto; filter: brightness(0) invert(1); opacity: .93; }
footer > p { margin: 0; color: rgba(255, 255, 255, .48); font-size: 9px; letter-spacing: .14em; text-transform: uppercase; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { color: rgba(255, 255, 255, .7); font-size: 10px; transition: color .2s; }
.footer-links a:hover { color: white; }

@media (max-width: 1180px) {
  .site-header { grid-template-columns: 260px 1fr auto; padding: 0 3vw; }
  .brand { width: 245px; }
  .desktop-nav { gap: 19px; }
  .hero-copy { padding-left: 5vw; max-width: none; }
  /* Bu genişlikten sonra ikisi yan yana sığmıyor; künye görselin parçası olmaktan çıkar. */
  .hero-caption { display: none; }
  .hero-copy-bottom { grid-template-columns: 1fr; gap: 26px; }
  .hero-actions { flex-direction: row; align-items: center; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-item:nth-child(2) { border-right: 0; }
  .service-item:nth-child(3), .service-item:nth-child(4) { border-top: 1px solid var(--line); }
  .experience-meta { grid-template-columns: 1fr; gap: 14px; }
}

@media (max-width: 880px) {
  .site-header { height: 76px; grid-template-columns: 1fr auto; padding: 0 4vw; }
  .brand { width: 225px; }
  .desktop-nav, .header-cta { display: none; }
  .mobile-menu { display: block; position: relative; }
  .mobile-menu summary { width: 44px; height: 44px; display: grid; place-content: center; gap: 6px; cursor: pointer; list-style: none; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary span { display: block; width: 22px; height: 2px; background: var(--navy); }
  .mobile-menu nav {
    position: fixed;
    top: 76px;
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    padding: 28px 5vw 40px;
    background: white;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 30px rgba(0, 0, 0, .08);
  }
  .mobile-menu nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 19px; }
  .hero { min-height: 90svh; }
  .hero-copy { padding: 108px 7vw 76px; }
  .hero-caption { display: none; }
  /* Dar ekranda yazı görselin ortasına biner; perde daha güçlü olmalı. */
  .hero-media::after {
    background: linear-gradient(180deg, rgba(4, 14, 30, .58) 0%, rgba(4, 14, 30, .74) 46%, rgba(4, 14, 30, .90) 100%);
  }
  .hero { --hero-focus: 42%; }
  .hero h1 { font-size: clamp(48px, 10.8vw, 78px); }
  .hero-copy-bottom { margin-top: 56px; }
  .hero-proof { grid-column: 1; grid-row: 2; padding-left: 5vw; }
  .hero-proof > div { padding-right: 3vw; }
  .section { padding: 98px 7vw; }
  .approach { grid-template-columns: 1fr; }
  .approach-intro { grid-column: 1; }
  .approach-body { padding-top: 8px; }
  .section-heading-row, .section-heading-row--experience { grid-template-columns: 1fr; gap: 34px; }
  .section-heading-row > p { max-width: 570px; }
  .foundation { grid-template-columns: 1fr; row-gap: 72px; }
  .foundation-heading > p:last-child { max-width: 720px; }
  .experience-grid { grid-template-columns: 1fr 1fr; }
  .experience-card:nth-child(2) { margin-top: 76px; }
  .experience-image, .experience-card:nth-child(2) .experience-image { height: 480px; }
  .experience-note { text-align: left; margin-left: 0; }
  .process-heading { grid-template-columns: 1fr; }
  .process-heading h2 { grid-column: 1; }
  .process-step { grid-template-columns: 65px .7fr 1.2fr 30px; }
  .contact { grid-template-columns: 1fr; }
  .contact-side { padding-top: 68px; }
  footer { grid-template-columns: 1fr auto; }
  .footer-links { grid-column: 2; grid-row: 1; }
  footer > p { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 580px) {
  .site-header { padding: 0 18px; }
  .brand { width: 205px; }
  .hero-copy { padding: 92px 24px 68px; }
  .eyebrow { margin-bottom: 23px; }
  .hero h1 { font-size: clamp(44px, 13vw, 55px); line-height: 1; }
  .hero-copy-bottom { margin-top: 44px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-proof { grid-template-columns: 1fr; padding: 0 24px; }
  .hero-proof > div, .hero-proof > div + div { min-height: 84px; padding: 16px 0; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .15); }
  .hero-proof strong { font-size: 16px; }
  .section { padding: 80px 24px; }
  .section-index { margin-bottom: 50px; }
  .approach-intro h2, .section-heading-row h2, .process h2, .contact h2 { font-size: 42px; }
  .service-grid { grid-template-columns: 1fr; margin-top: 62px; }
  .service-item, .service-item + .service-item { min-height: 292px; padding: 26px 24px 34px 0; border-right: 0; border-top: 1px solid var(--line); }
  .service-item h3 { margin-top: 58px; }
  .experience-grid { grid-template-columns: 1fr; gap: 44px; margin-top: 62px; }
  .experience-card:nth-child(2) { margin-top: 0; }
  .experience-image, .experience-card:nth-child(2) .experience-image { height: 430px; }
  .experience-meta { grid-template-columns: 1fr; }
  .process-list { margin-top: 68px; }
  .process-step { grid-template-columns: 50px 1fr 25px; gap: 14px; padding: 23px 0; }
  .process-step h3 { margin: 0; }
  .process-step p { grid-column: 2 / 4; margin: 0; }
  .process-step i { grid-column: 3; grid-row: 1; }
  .statement { min-height: 500px; }
  .statement-mark { font-size: 430px; }
  .statement p { font-size: 35px; }
  .contact-actions { align-items: flex-start; flex-direction: column; }
  footer { grid-template-columns: 1fr; gap: 28px; padding: 48px 24px; }
  .footer-brand { width: 240px; }
  .footer-links { grid-column: 1; grid-row: auto; flex-wrap: wrap; gap: 16px 24px; }
  footer > p { grid-column: 1; grid-row: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ==========================================================================
   HAREKET KATMANI — scroll animasyonları ve arayüz rötuşları
   --------------------------------------------------------------------------
   Kural: gizleme davranışının tamamı <html class="motion-on"> altında tanımlı.
   Bu sınıfı yalnızca layout.tsx içindeki betik ekler; betik çalışmazsa veya
   ziyaretçi "hareketi azalt" seçeneğini açtıysa sınıf hiç eklenmez ve sayfa
   bugünkü hâliyle, hiçbir şey gizlenmeden görünür.
   ========================================================================== */

/* --- 1. Ortak açılış ---------------------------------------------------- */
html.motion-on [data-motion] {
  opacity: 0;
  transform: translate3d(0, var(--motion-y, 26px), 0);
  transition:
    opacity var(--motion-dur, .9s) var(--motion-ease) var(--motion-delay, 0ms),
    transform var(--motion-dur, .9s) var(--motion-ease) var(--motion-delay, 0ms);
}
html.motion-on [data-motion-in] { opacity: 1; transform: translate3d(0, 0, 0); }

/* Kendi dönüşümü olan öğeler yalnızca yumuşak geçişle açılır. */
html.motion-on [data-motion="fade"] { transform: none; }

/* Başlıklar biraz daha uzun yol alır, italik vurgu bir tempo sonra yerleşir. */
html.motion-on h1[data-motion], html.motion-on h2[data-motion] { --motion-y: 32px; --motion-dur: 1s; }
html.motion-on h1[data-motion] em, html.motion-on h2[data-motion] em {
  opacity: 0;
  transition: opacity .85s var(--motion-ease) calc(var(--motion-delay, 0ms) + 240ms);
}
html.motion-on h1[data-motion-in] em, html.motion-on h2[data-motion-in] em { opacity: 1; }

/* Süreç adımlarının kendi hover geçişi korunur. */
html.motion-on .process-step[data-motion] {
  transition:
    opacity var(--motion-dur, .9s) var(--motion-ease) var(--motion-delay, 0ms),
    transform var(--motion-dur, .9s) var(--motion-ease) var(--motion-delay, 0ms),
    background .25s, padding .25s;
}

/* --- 2. Bölüm başlığındaki çizginin çizilmesi ---------------------------- */
html.motion-on .section-index { position: relative; }
html.motion-on .section-index::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: var(--navy);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s var(--motion-ease) calc(var(--motion-delay, 0ms) + 140ms);
}
html.motion-on .section-index--light::after { background: var(--accent); }
html.motion-on .section-index[data-motion-in]::after { transform: scaleX(1); }

/* --- 3. Görseller: açılışta yumuşak yakınlaşma, scroll'da hafif kayma ---- */
html.motion-on .hero-media img {
  animation: orientImageIn 1.5s var(--motion-ease) backwards;
}
@keyframes orientImageIn {
  from { transform: scale(1.07); }
  to { transform: scale(1); }
}
html.motion-on .experience-image img { transform: scale(1.07); }
html.motion-on .experience-card[data-motion-in] .experience-image img { transform: scale(1); }
html.motion-on .experience-card:first-child .experience-image img { object-position: center calc(50% + var(--par, 0%)); }
html.motion-on .experience-card:nth-child(2) .experience-image img { object-position: center calc(40% + var(--par, 0%)); }
/* Hover yakınlaşması açılıştan sonra da çalışmaya devam etsin. */
html.motion-on .experience-card:hover .experience-image img { transform: scale(1.025); }

/* Bölüm arkasındaki dev "O" scroll ile süzülür. */
html.motion-on [data-motion="mark"] {
  transform: translate3d(0, calc(-8px + var(--par, 0px)), 0);
  transition: opacity 1.6s var(--motion-ease) var(--motion-delay, 0ms);
}
html.motion-on [data-motion="mark"][data-motion-in] {
  transform: translate3d(0, calc(-8px + var(--par, 0px)), 0);
}

/* --- 4. Okuma ilerlemesi ------------------------------------------------- */
.scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 60;
  height: 2px;
  pointer-events: none;
}
.scroll-progress::after {
  content: "";
  display: block;
  height: 100%;
  background: var(--navy);
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left;
  will-change: transform;
}

/* --- 5. Başlık çubuğu ve menü -------------------------------------------- */
.site-header { transition: background .35s ease, box-shadow .35s ease; }
html.is-scrolled .site-header {
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 14px 34px rgba(6, 26, 52, .07);
}
.desktop-nav a[data-active] { color: var(--navy); }
.desktop-nav a[data-active]::after { transform: scaleX(1); transform-origin: left; }

/* --- 6. Bağlantı hedefleri ve odak ---------------------------------------- */
/* Yapışkan başlık, bölüme atlarken içeriği örtmesin. */
section[id] { scroll-margin-top: 104px; }
:focus-visible { outline: 2px solid var(--navy); outline-offset: 3px; }
.foundation :focus-visible,
.process :focus-visible,
.contact :focus-visible,
footer :focus-visible { outline-color: var(--accent); }

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 70;
  padding: 13px 20px;
  background: var(--navy);
  color: white;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  transition: top .2s ease;
}
.skip-link:focus { top: 16px; }

@media (max-width: 880px) {
  section[id] { scroll-margin-top: 88px; }
}

@media (prefers-reduced-motion: reduce) {
  html.motion-on [data-motion] { opacity: 1 !important; transform: none !important; }
  html.motion-on .section-index::after { transform: scaleX(1) !important; }
  html.motion-on .hero-media img { animation: none !important; }
  html.motion-on .experience-image img { transform: none !important; }
}