/* ==========================================================================
   Beluga Medya — marine & beyaz
   ========================================================================== */
:root {
  --abyss: #030E22;
  --deep: #071C3F;
  --marine: #0B2D63;
  --marine-2: #123F86;
  --ocean: #2056C9;
  --ice: #D7E8FF;
  --mist: #EAF3FF;
  --pearl: #F5F9FF;
  --white: #FFFFFF;
  --ink: #0A1A33;
  --ink-2: #44546F;
  --line: rgba(11, 45, 99, .12);
  --line-light: rgba(255, 255, 255, .16);

  --f-d: "Bricolage Grotesque", system-ui, sans-serif;
  --f-s: "Instrument Serif", Georgia, serif;
  --f-b: "Manrope", system-ui, sans-serif;
  --f-m: "JetBrains Mono", ui-monospace, monospace;

  --pad: clamp(16px, 4vw, 56px);
  --max: 1360px;
  --r: 32px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --sec: clamp(96px, 13vw, 200px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
body {
  margin: 0;
  background: var(--pearl);
  color: var(--ink);
  font-family: var(--f-b);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body.is-loading { overflow: hidden; }
img, video, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
h1, h2, h3, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
em { font-family: var(--f-s); font-style: italic; font-weight: 400; letter-spacing: -.01em; }
::selection { background: var(--marine); color: var(--white); }
:focus-visible { outline: 2px solid var(--ocean); outline-offset: 3px; border-radius: 6px; }

/* ince grain */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 90; pointer-events: none; opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

/* ---------- tipografi ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: .7em;
  font-family: var(--f-m); font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--marine-2); margin-bottom: 28px;
}
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.eyebrow--light { color: var(--ice); }

.h-xl {
  font-family: var(--f-d); font-weight: 700; font-size: clamp(2.6rem, 6.6vw, 6.4rem);
  line-height: .95; letter-spacing: -.045em;
}
.h-xxl {
  font-family: var(--f-d); font-weight: 700; font-size: clamp(2.8rem, 8vw, 8rem);
  line-height: .92; letter-spacing: -.05em;
}
.h-xl em, .h-xxl em { font-size: 1.08em; letter-spacing: -.02em; }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.3rem); line-height: 1.55; color: var(--ink-2); max-width: 36em; }
.lead--light { color: rgba(234, 243, 255, .78); }

/* split reveal */
.wd { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.wd > span { display: inline-block; will-change: transform; }

/* ---------- butonlar ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: .7em;
  height: 56px; padding: 0 28px; border-radius: 999px;
  font-family: var(--f-b); font-weight: 600; font-size: 15px; letter-spacing: .01em;
  overflow: hidden; isolation: isolate; white-space: nowrap;
  transition: color .5s var(--ease), background-color .5s var(--ease), border-color .5s var(--ease);
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .5s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn::before {
  content: ""; position: absolute; left: 50%; top: 100%; width: 140%; aspect-ratio: 1; border-radius: 50%;
  transform: translate(-50%, 0) scale(0); transition: transform .7s var(--ease); z-index: -1;
}
.btn:hover::before { transform: translate(-50%, -55%) scale(1); }
.btn--marine { background: var(--marine); color: var(--white); }
.btn--marine::before { background: var(--ocean); }
.btn--white { background: var(--white); color: var(--marine); }
.btn--white::before { background: var(--ice); }
.btn--ghost-dark { border: 1px solid rgba(11, 45, 99, .3); color: var(--marine); }
.btn--ghost-dark::before { background: var(--marine); }
.btn--ghost-dark:hover { color: var(--white); border-color: var(--marine); }
.btn--pill { height: 44px; padding: 0 22px; font-size: 14px; }
.btn--wide { width: 100%; height: 62px; }
.btn > span { position: relative; }

/* ==========================================================================
   PRELOADER
   ========================================================================== */
.preloader {
  position: fixed; inset: 0; z-index: 200; display: grid; place-items: center;
  background: radial-gradient(120% 90% at 50% 30%, var(--deep) 0%, var(--abyss) 70%);
  color: var(--white); clip-path: inset(0 0 0 0);
}
.preloader__sonar { position: absolute; left: 50%; top: 50%; width: 0; height: 0; }
.preloader__sonar i {
  position: absolute; left: -45vmin; top: -45vmin; width: 90vmin; height: 90vmin; border-radius: 50%;
  border: 1px solid rgba(215, 232, 255, .22); animation: sonar 3.6s cubic-bezier(.2, .6, .3, 1) infinite;
}
.preloader__sonar i:nth-child(2) { animation-delay: 1.2s; }
.preloader__sonar i:nth-child(3) { animation-delay: 2.4s; }
@keyframes sonar { 0% { transform: scale(.05); opacity: 0; } 15% { opacity: 1; } 100% { transform: scale(1); opacity: 0; } }
.preloader__mark { width: min(260px, 52vw); color: var(--white); position: relative; margin-top: -60px; }
.preloader__mark use { stroke-dasharray: 900; stroke-dashoffset: 900; }
.preloader__word {
  position: absolute; left: 50%; top: calc(50% + 60px); transform: translateX(-50%);
  font-family: var(--f-d); font-weight: 700; font-size: 34px; letter-spacing: -.04em; opacity: 0;
  display: flex; align-items: baseline; gap: 8px;
}
.preloader__word span { font-family: var(--f-m); font-weight: 400; font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--ice); }
.preloader__meta {
  position: absolute; left: var(--pad); right: var(--pad); bottom: 32px; display: flex; justify-content: space-between;
  font-family: var(--f-m); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: rgba(215, 232, 255, .7);
}
.preloader__meta b { font-weight: 500; color: var(--white); font-variant-numeric: tabular-nums; }

/* ==========================================================================
   NAV
   ========================================================================== */
.nav {
  position: fixed; left: 0; right: 0; top: 0; z-index: 100; padding: 14px var(--pad);
  transition: transform .7s var(--ease); color: var(--white);
}
.nav.is-hidden { transform: translateY(-120%); }
.nav__bar {
  max-width: var(--max); margin: 0 auto; height: 64px; padding: 0 10px 0 20px; border-radius: 999px;
  display: flex; align-items: center; gap: 24px;
  border: 1px solid transparent;
  transition: background-color .6s var(--ease), border-color .6s var(--ease), color .6s var(--ease), backdrop-filter .6s;
}
.nav.is-solid .nav__bar { background: rgba(3, 14, 34, .5); border-color: rgba(255, 255, 255, .1); backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4); }
.nav[data-theme="light"] { color: var(--marine); }
.nav[data-theme="light"].is-solid .nav__bar { background: rgba(245, 249, 255, .72); border-color: var(--line); }

.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.brand__mark { width: 52px; height: auto; fill: currentColor; transition: transform .8s var(--ease); }
.brand:hover .brand__mark { transform: translateX(4px) rotate(-6deg); }
.brand__word { font-family: var(--f-d); font-weight: 700; font-size: 23px; letter-spacing: -.04em; line-height: 1; display: flex; align-items: baseline; gap: 6px; }
.brand__word small { font-family: var(--f-m); font-weight: 400; font-size: 10px; letter-spacing: .26em; text-transform: uppercase; opacity: .7; }

.nav__links { display: flex; gap: 4px; }
.nav__links a { position: relative; padding: 8px 14px; font-size: 14px; font-weight: 500; opacity: .85; transition: opacity .3s; }
.nav__links a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease);
}
.nav__links a:hover { opacity: 1; }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__cta { background: var(--white); color: var(--marine); }
.nav__cta::before { background: var(--ice); }
.nav[data-theme="light"] .nav__cta { background: var(--marine); color: var(--white); }
.nav[data-theme="light"] .nav__cta::before { background: var(--ocean); }

.nav__burger { display: none; width: 44px; height: 44px; border-radius: 50%; position: relative; }
.nav__burger i { position: absolute; left: 12px; right: 12px; height: 1.5px; background: currentColor; transition: transform .5s var(--ease); }
.nav__burger i:first-child { top: 18px; }
.nav__burger i:last-child { top: 25px; }
.nav__burger[aria-expanded="true"] i:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] i:last-child { transform: translateY(-3.5px) rotate(-45deg); }

.mnav {
  position: fixed; inset: 0; z-index: 99; background: var(--marine); color: var(--white);
  display: flex; align-items: flex-end; padding: 120px var(--pad) 48px;
  clip-path: circle(0% at calc(100% - 44px) 46px); transition: clip-path .9s var(--ease); overflow: hidden;
}
.mnav.is-open { clip-path: circle(150% at calc(100% - 44px) 46px); }
.mnav nav { display: flex; flex-direction: column; gap: 6px; position: relative; }
.mnav a { font-family: var(--f-d); font-weight: 700; font-size: clamp(2.4rem, 11vw, 4rem); letter-spacing: -.045em; line-height: 1.05; display: flex; align-items: baseline; gap: 14px; }
.mnav a small { font-family: var(--f-m); font-size: 12px; font-weight: 400; letter-spacing: .1em; color: var(--ice); }
.mnav__sonar { position: absolute; right: 44px; top: 46px; }
.mnav__sonar i { position: absolute; left: -60vmax; top: -60vmax; width: 120vmax; height: 120vmax; border-radius: 50%; border: 1px solid rgba(215, 232, 255, .12); animation: sonar 5s linear infinite; }
.mnav__sonar i:nth-child(2) { animation-delay: 1.66s; }
.mnav__sonar i:nth-child(3) { animation-delay: 3.33s; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero { position: relative; height: 560vh; background: var(--abyss); }
.hero__pin { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; color: var(--white); }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__shade {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(0deg, rgba(3, 14, 34, .72) 0%, rgba(3, 14, 34, .25) 34%, rgba(3, 14, 34, 0) 55%),
    linear-gradient(90deg, rgba(3, 14, 34, .35) 0%, rgba(3, 14, 34, 0) 45%);
}
.hero__wash { position: absolute; inset: 0; background: var(--pearl); opacity: 0; pointer-events: none; }

.hero__phase { position: absolute; z-index: 2; }
.hero__phase--1 { left: var(--pad); right: var(--pad); bottom: clamp(88px, 12vh, 140px); max-width: var(--max); margin: 0 auto; }
.hero__title {
  font-family: var(--f-d); font-weight: 700; font-size: clamp(3.6rem, 10vw, 11.5rem);
  line-height: .86; letter-spacing: -.06em; margin: 0 0 28px -.04em;
}
.hero__title .ln { display: block; overflow: hidden; padding-bottom: .06em; }
.hero__title .ln > span { display: block; }
.hero__title em { font-size: 1.04em; letter-spacing: -.03em; color: var(--ice); padding-right: .1em; }
.hero__sub { max-width: 30em; font-size: clamp(1rem, 1.35vw, 1.2rem); color: rgba(234, 243, 255, .82); }

.hero__phase--2, .hero__phase--3 { left: var(--pad); max-width: min(34vw, 520px); opacity: 0; }
.hero__phase--2 { bottom: clamp(88px, 13vh, 150px); }
/* yükselişte beluga ekranın ortasını kaplar → metin sol kenarda, dikeyde ortada */
.hero__phase--3 { top: 50%; margin-top: -120px; }
.hero__phase--2 h2, .hero__phase--3 h2 {
  font-family: var(--f-d); font-weight: 700; font-size: clamp(2.2rem, 4.6vw, 4.4rem); line-height: .98; letter-spacing: -.045em; margin-bottom: 20px;
}
.hero__phase--2 h2 em, .hero__phase--3 h2 em { color: var(--ice); }
.hero__phase--2 p:last-child, .hero__phase--3 p:last-child { color: rgba(234, 243, 255, .82); font-size: 1.05rem; }
.hero__phase--3 { text-shadow: 0 2px 30px rgba(3, 14, 34, .45); }
.kicker { font-family: var(--f-m); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--ice); margin-bottom: 18px; }
.kicker--dark { color: var(--ocean); }

.hero__phase--4 {
  inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  padding: 0 var(--pad); color: var(--marine); opacity: 0; pointer-events: none;
}
.hero__phase--4 h2 { font-family: var(--f-d); font-weight: 700; font-size: clamp(2.8rem, 8.4vw, 8.6rem); line-height: .9; letter-spacing: -.055em; max-width: 12ch; margin-bottom: 40px; }
.hero__phase--4 h2 em { color: var(--ocean); }
.hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.hero__chips { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 28px; }
.hero__chips a {
  display: inline-block; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line);
  font-family: var(--f-m); font-size: 12px; letter-spacing: .06em; color: var(--ink-2); transition: background .4s, color .4s;
}
.hero__chips a:hover { background: var(--marine); color: var(--white); }

.depth {
  position: absolute; z-index: 3; right: var(--pad); top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: flex-end; gap: 14px;
  font-family: var(--f-m); text-transform: uppercase; color: var(--ice); transition: color .6s;
}
.depth.is-surface { color: var(--marine); }
.depth__label { font-size: 11px; letter-spacing: .2em; opacity: .8; }
.depth__scale {
  position: relative; width: 14px; height: 30vh;
  background: repeating-linear-gradient(180deg, currentColor 0 1px, transparent 1px 10%) right / 6px 100% no-repeat,
              repeating-linear-gradient(180deg, currentColor 0 1px, transparent 1px 2.5%) right / 3px 100% no-repeat;
  opacity: .7;
}
.depth__marker { position: absolute; right: 0; top: 100%; width: 14px; height: 2px; background: currentColor; box-shadow: 0 0 12px currentColor; }
.depth__value { font-size: 12px; letter-spacing: .1em; }
.depth__value b { font-family: var(--f-d); font-weight: 600; font-size: 28px; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }

.scroll-hint {
  position: absolute; z-index: 3; left: 50%; bottom: 28px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  font-family: var(--f-m); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: rgba(215, 232, 255, .8);
}
.scroll-hint i { position: relative; width: 1px; height: 48px; background: rgba(215, 232, 255, .25); overflow: hidden; }
.scroll-hint i::after { content: ""; position: absolute; left: 0; top: -40%; width: 1px; height: 40%; background: var(--white); animation: drip 2s var(--ease) infinite; }
@keyframes drip { to { top: 100%; } }

/* ==========================================================================
   MARQUEE
   ========================================================================== */
.marquee { background: var(--marine); color: var(--white); overflow: hidden; padding: 26px 0; position: relative; z-index: 2; }
.marquee__track { display: flex; align-items: center; gap: 40px; width: max-content; white-space: nowrap; }
.marquee span { font-family: var(--f-d); font-weight: 600; font-size: clamp(1.6rem, 3.6vw, 3rem); letter-spacing: -.035em; }
.marquee em { color: var(--ice); }
.marquee svg { width: 64px; height: auto; fill: var(--ice); flex: none; }

/* ==========================================================================
   MANİFESTO
   ========================================================================== */
.manifesto { background: var(--pearl); padding: var(--sec) 0 0; }
.manifesto__text {
  font-family: var(--f-d); font-weight: 600; font-size: clamp(1.9rem, 4.3vw, 4.2rem); line-height: 1.08; letter-spacing: -.04em;
  color: var(--marine); max-width: 22ch;
}
.manifesto__text .w { opacity: .14; transition: none; }
.manifesto__band { margin: clamp(64px, 9vw, 140px) 0 0; position: relative; }
.manifesto__media { --s: 1.25; height: min(78vh, 760px); overflow: hidden; clip-path: inset(14% 18% 14% 18% round 40px); }
.manifesto__media > img, .manifesto__media > .ph { width: 100%; height: 100%; object-fit: cover; transform: scale(var(--s)); }
.manifesto__band figcaption {
  position: absolute; left: var(--pad); bottom: 40px; max-width: 420px; color: var(--white); font-size: 15px; line-height: 1.55;
  padding: 20px 24px; border-radius: 20px; background: rgba(3, 14, 34, .35); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, .14); opacity: 0; transform: translateY(24px);
}
.manifesto__band figcaption span { display: block; font-family: var(--f-d); font-weight: 600; font-size: 20px; letter-spacing: -.02em; margin-bottom: 4px; }

/* ==========================================================================
   HİZMETLER
   ========================================================================== */
.services { background: var(--pearl); padding: var(--sec) 0 calc(var(--sec) * .6); }
.services__head { margin-bottom: clamp(48px, 6vw, 90px); display: grid; grid-template-columns: 1fr; gap: 28px; }
.services__head .lead { max-width: 40em; }
.services__stack { display: flex; flex-direction: column; gap: 6vh; }
.svc { position: sticky; top: 96px; }
.svc:nth-child(2) { top: 112px; }
.svc:nth-child(3) { top: 128px; }
.svc__inner {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 48px);
  min-height: min(calc(100vh - 150px), 780px); padding: clamp(14px, 1.6vw, 22px); border-radius: var(--r);
  transform-origin: 50% 0; will-change: transform; position: relative; --dim: 0;
}
.svc__inner::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: var(--abyss); opacity: var(--dim); pointer-events: none; }
.svc--1 .svc__inner { background: var(--white); border: 1px solid var(--line); box-shadow: 0 40px 90px -50px rgba(11, 45, 99, .35); }
.svc--2 .svc__inner { background: var(--marine); color: var(--white); box-shadow: 0 40px 90px -40px rgba(3, 14, 34, .6); }
.svc--3 .svc__inner { background: var(--ice); box-shadow: 0 40px 90px -50px rgba(11, 45, 99, .4); }
.svc__media { --s: 1.18; position: relative; border-radius: calc(var(--r) - 10px); overflow: hidden; background: var(--mist); min-height: 320px; }
.svc__media > video, .svc__media > img, .svc__media > .ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: var(--pos, 50% 50%); transform: scale(var(--s)); transform-origin: var(--pos, 50% 50%); }
.svc__tag {
  position: absolute; left: 16px; top: 16px; z-index: 2; padding: 7px 14px; border-radius: 999px;
  font-family: var(--f-m); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  background: rgba(255, 255, 255, .82); color: var(--marine); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.svc__body { display: flex; flex-direction: column; justify-content: center; padding: clamp(12px, 2.4vw, 40px) clamp(8px, 2vw, 32px); }
.svc__num {
  font-family: var(--f-d); font-weight: 800; font-size: clamp(3.6rem, 6vw, 6rem); line-height: .8; letter-spacing: -.06em;
  color: transparent; -webkit-text-stroke: 1.2px currentColor; opacity: .35; margin-bottom: 18px;
}
.svc h3 { font-family: var(--f-d); font-weight: 700; font-size: clamp(2.2rem, 3.8vw, 3.8rem); line-height: .95; letter-spacing: -.045em; margin-bottom: 14px; }
.svc h3 em { color: var(--ocean); }
.svc--2 h3 em { color: var(--ice); }
.svc__lead { font-family: var(--f-d); font-weight: 500; font-size: 1.25rem; letter-spacing: -.02em; margin-bottom: 12px; }
.svc__body > p:not(.svc__lead) { color: var(--ink-2); max-width: 34em; }
.svc--2 .svc__body > p:not(.svc__lead) { color: rgba(234, 243, 255, .78); }
.svc__list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; margin: 26px 0 32px; }
.svc__list li { position: relative; padding-left: 22px; font-size: 15px; font-weight: 500; line-height: 1.4; }
.svc__list li::before {
  content: ""; position: absolute; left: 0; top: .42em; width: 9px; height: 9px; border-radius: 50%;
  border: 1.5px solid var(--ocean); box-shadow: 0 0 0 3px rgba(32, 86, 201, .12);
}
.svc--2 .svc__list li::before { border-color: var(--ice); box-shadow: 0 0 0 3px rgba(215, 232, 255, .14); }
.svc .btn { align-self: flex-start; }

/* ==========================================================================
   SÜREÇ · DALIŞ
   ========================================================================== */
.dive {
  /* clip: hidden olsaydı içteki sticky başlık yapışmazdı */
  position: relative; overflow: hidden; overflow: clip; color: var(--white); padding: var(--sec) 0;
  background: linear-gradient(180deg, var(--marine) 0%, var(--deep) 45%, var(--abyss) 100%);
}
.dive__bubbles { position: absolute; inset: 0; pointer-events: none; }
.dive__bubbles span {
  position: absolute; bottom: -20px; border-radius: 50%; border: 1px solid rgba(215, 232, 255, .35);
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, .35), rgba(255, 255, 255, 0) 60%);
  animation: rise linear infinite;
}
@keyframes rise { to { transform: translate3d(var(--sway, 20px), -110vh, 0); opacity: 0; } }
.dive__grid { position: relative; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 100px); }
.dive__head { position: sticky; top: 140px; align-self: start; }
.dive__head .lead { margin-top: 28px; }
.dive__track { position: relative; }
.dive__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.dive__path { fill: none; stroke-linecap: round; }
.dive__path--ghost { stroke: rgba(215, 232, 255, .18); stroke-width: 1.5; stroke-dasharray: 2 8; }
.dive__path--live { stroke: var(--ice); stroke-width: 2; filter: drop-shadow(0 0 6px rgba(215, 232, 255, .6)); }
.dive__beluga { fill: var(--white); filter: drop-shadow(0 0 14px rgba(215, 232, 255, .55)); }
.dive__steps { position: relative; display: flex; flex-direction: column; gap: clamp(90px, 16vh, 180px); padding: 40px 0 60px; }
.dive__step { position: relative; width: calc(50% - 56px); opacity: .28; transition: opacity .8s var(--ease); }
.dive__step:nth-child(odd) { margin-left: auto; }
.dive__step.is-on { opacity: 1; }
.dive__dot {
  position: absolute; top: 6px; width: 14px; height: 14px; border-radius: 50%; border: 1.5px solid var(--ice); background: var(--abyss);
  transition: background .5s, box-shadow .5s;
}
.dive__step:nth-child(odd) .dive__dot { left: -40px; }
.dive__step:nth-child(even) .dive__dot { right: -40px; }
.dive__step.is-on .dive__dot { background: var(--ice); box-shadow: 0 0 0 6px rgba(215, 232, 255, .15), 0 0 24px rgba(215, 232, 255, .7); }
.dive__no { display: block; font-family: var(--f-m); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--ice); margin-bottom: 10px; }
.dive__step h3 { font-family: var(--f-d); font-weight: 700; font-size: clamp(2rem, 3.2vw, 3rem); letter-spacing: -.045em; line-height: 1; margin-bottom: 12px; }
.dive__step p { color: rgba(234, 243, 255, .74); }

/* ==========================================================================
   NEDEN BELUGA
   ========================================================================== */
.why { background: var(--mist); padding: var(--sec) 0; position: relative; overflow: hidden; }
.why__head { display: flex; flex-direction: column; margin-bottom: clamp(48px, 6vw, 90px); }
.why__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }
.trait { display: flex; flex-direction: column; }
.trait:nth-child(2) { margin-top: 80px; }
.trait:nth-child(3) { margin-top: 160px; }
.trait__media { --ty: -10%; position: relative; aspect-ratio: 4 / 5; border-radius: var(--r); overflow: hidden; margin-bottom: 26px; background: var(--marine); }
.trait__media > img, .trait__media > .ph { position: absolute; inset: 0; width: 100%; height: 115%; object-fit: cover; transform: translateY(var(--ty)); }
.trait__no { font-family: var(--f-m); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ocean); margin-bottom: 12px; }
.trait h3 { font-family: var(--f-d); font-weight: 700; font-size: clamp(1.8rem, 2.6vw, 2.5rem); letter-spacing: -.04em; line-height: 1; color: var(--marine); margin-bottom: 14px; }
.trait h3 em { color: var(--ocean); }
.trait p { color: var(--ink-2); }
.trait__us { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--marine) !important; font-weight: 500; }
.trait__us b { font-family: var(--f-m); font-weight: 500; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ocean); margin-right: 6px; }

/* ==========================================================================
   SSS
   ========================================================================== */
.faq { background: var(--white); padding: var(--sec) 0; }
.faq__grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 100px); }
.faq__head { position: sticky; top: 140px; align-self: start; }
.faq__head .lead { margin-top: 28px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; position: relative; padding: 28px 56px 28px 0;
  font-family: var(--f-d); font-weight: 600; font-size: clamp(1.2rem, 1.8vw, 1.55rem); letter-spacing: -.025em; color: var(--marine); line-height: 1.25;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { position: absolute; right: 0; top: 50%; width: 40px; height: 40px; margin-top: -20px; border-radius: 50%; border: 1px solid var(--line); transition: background .4s, transform .6s var(--ease); }
.faq summary i::before, .faq summary i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 1.5px; margin: -.75px 0 0 -7px; background: currentColor; transition: transform .6s var(--ease); }
.faq summary i::after { transform: rotate(90deg); }
.faq details[open] summary i { background: var(--marine); color: var(--white); transform: rotate(180deg); }
.faq details[open] summary i::after { transform: rotate(0); }
.faq details > div { overflow: hidden; }
.faq details p { padding: 0 56px 28px 0; color: var(--ink-2); }

/* ==========================================================================
   İLETİŞİM
   ========================================================================== */
.contact { position: relative; overflow: hidden; color: var(--white); padding: var(--sec) 0; background: var(--marine); }
.contact__bg { position: absolute; inset: 0; }
.contact__bg > video, .contact__bg > img, .contact__bg > .ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.contact__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(3, 14, 34, .92) 0%, rgba(7, 28, 63, .78) 45%, rgba(11, 45, 99, .45) 100%);
}
.contact__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(32px, 6vw, 100px); align-items: end; }
.contact__head .lead { margin-top: 28px; }
.contact__direct { margin-top: 40px; display: flex; flex-direction: column; gap: 10px; }
.contact__direct a { display: inline-flex; align-items: center; gap: 12px; font-family: var(--f-d); font-weight: 500; font-size: 1.3rem; letter-spacing: -.02em; }
.contact__direct a small { font-family: var(--f-m); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ice); min-width: 90px; }
.contact__direct a span { background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size .6s var(--ease); }
.contact__direct a:hover span { background-size: 100% 1px; }

.form {
  padding: clamp(22px, 3vw, 40px); border-radius: var(--r);
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16);
  backdrop-filter: blur(22px) saturate(1.3); -webkit-backdrop-filter: blur(22px) saturate(1.3);
  display: flex; flex-direction: column; gap: 20px;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-family: var(--f-m); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ice); }
.field small { text-transform: none; letter-spacing: 0; opacity: .7; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 17px; color: var(--white); background: transparent; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .28);
  padding: 8px 0 10px; border-radius: 0; resize: vertical; transition: border-color .4s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--white); }
.field.is-invalid input { border-color: #ff9b9b; }
.chips { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend { font-family: var(--f-m); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ice); margin-bottom: 10px; padding: 0; }
.chips label { cursor: pointer; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips span {
  display: inline-block; padding: 9px 16px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .28); font-size: 14px; font-weight: 500;
  transition: background .35s, color .35s, border-color .35s;
}
.chips input:checked + span { background: var(--white); color: var(--marine); border-color: var(--white); }
.chips input:focus-visible + span { outline: 2px solid var(--ice); outline-offset: 2px; }
.form__note { font-size: 13px; color: rgba(234, 243, 255, .6); text-align: center; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer { position: relative; overflow: hidden; background: var(--abyss); color: var(--white); padding: clamp(72px, 9vw, 130px) 0 28px; }
.footer__video { position: absolute; inset: 0; }
.footer__video > video, .footer__video > .ph { width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.footer__video::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(3, 14, 34, .55) 0%, rgba(3, 14, 34, .86) 45%, var(--abyss) 100%); }
.footer__caustics {
  position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background:
    radial-gradient(40% 30% at 20% 0%, rgba(32, 86, 201, .35), transparent 70%),
    radial-gradient(35% 25% at 80% 10%, rgba(215, 232, 255, .12), transparent 70%);
}
.footer .wrap { position: relative; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; align-items: start; }
.footer__tag { font-family: var(--f-d); font-weight: 700; font-size: clamp(2rem, 3.6vw, 3.4rem); letter-spacing: -.045em; line-height: 1; }
.footer__tag em { color: var(--ice); }
.footer__nav, .footer__social { display: flex; flex-direction: column; gap: 8px; }
.footer__nav a, .footer__social a { color: rgba(234, 243, 255, .75); transition: color .3s; width: fit-content; }
.footer__nav a:hover, .footer__social a:hover { color: var(--white); }
.footer__word {
  font-family: var(--f-d); font-weight: 800; font-size: 25.5vw; line-height: .8; letter-spacing: -.07em; text-align: center;
  margin: clamp(48px, 7vw, 100px) 0 clamp(20px, 2vw, 32px) -.03em; user-select: none;
  background:
    radial-gradient(30% 50% at var(--cx, 30%) 40%, rgba(255, 255, 255, .95), transparent 70%),
    radial-gradient(25% 40% at var(--cx2, 70%) 60%, rgba(215, 232, 255, .85), transparent 70%),
    linear-gradient(180deg, #2a5fc4 0%, #0e3374 70%, #0B2D63 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: caustic 14s ease-in-out infinite alternate;
}
@property --cx { syntax: "<percentage>"; inherits: false; initial-value: 30%; }
@property --cx2 { syntax: "<percentage>"; inherits: false; initial-value: 70%; }
@keyframes caustic { 0% { --cx: 15%; --cx2: 80%; } 50% { --cx: 55%; --cx2: 35%; } 100% { --cx: 85%; --cx2: 60%; } }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--f-m); font-size: 12px; letter-spacing: .08em; color: rgba(234, 243, 255, .55); padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1); }
.footer__up { display: inline-flex; align-items: center; gap: 8px; color: var(--white); }
.footer__up svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .5s var(--ease); }
.footer__up:hover svg { transform: translateY(-4px); }

/* ==========================================================================
   YER TUTUCU (görsel/video henüz yoksa)
   ========================================================================== */
.ph {
  position: relative; overflow: hidden; color: rgba(215, 232, 255, .9);
  background:
    radial-gradient(70% 60% at 50% 0%, rgba(32, 86, 201, .55), transparent 70%),
    linear-gradient(180deg, var(--marine) 0%, var(--deep) 60%, var(--abyss) 100%);
}
.ph::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background: repeating-linear-gradient(100deg, transparent 0 46px, rgba(215, 232, 255, .05) 46px 48px);
}
.ph svg { position: absolute; left: 50%; top: 50%; width: 46%; max-width: 280px; transform: translate(-50%, -50%); fill: rgba(255, 255, 255, .9); filter: drop-shadow(0 0 30px rgba(215, 232, 255, .45)); animation: drift 7s ease-in-out infinite; }
@keyframes drift { 50% { transform: translate(-46%, -54%) rotate(-3deg); } }
.ph b { position: absolute; left: 16px; bottom: 14px; font-family: var(--f-m); font-weight: 500; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.ph--light { color: var(--marine); background: radial-gradient(70% 60% at 50% 0%, #fff, transparent 70%), linear-gradient(180deg, var(--mist), var(--ice)); }
.ph--light svg { fill: var(--marine); filter: none; opacity: .85; }
.is-rec .ph b { display: none; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 160; transform: translate(-50%, calc(100% + 40px)); visibility: hidden;
  padding: 14px 22px; border-radius: 999px; background: var(--marine); color: var(--white); font-size: 14px; font-weight: 500;
  box-shadow: 0 20px 40px -20px rgba(3, 14, 34, .6); transition: transform .6s var(--ease); max-width: calc(100vw - 32px); text-align: center;
}
.toast.is-on { transform: translate(-50%, 0); visibility: visible; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1080px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .nav__cta { display: none; }
  .svc__list { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  body { font-size: 16px; }
  .svc, .svc:nth-child(2), .svc:nth-child(3) { position: relative; top: 0; }
  .svc__inner { grid-template-columns: 1fr; min-height: 0; }
  .svc__media { aspect-ratio: 4 / 5; min-height: 0; max-height: 64vh; }
  .svc__list { grid-template-columns: 1fr 1fr; }
  .dive__grid, .faq__grid, .contact__grid { grid-template-columns: 1fr; }
  .dive__head, .faq__head { position: relative; top: 0; }
  .dive__step, .dive__step:nth-child(odd) { margin-left: 56px; width: auto; }
  .dive__step .dive__dot, .dive__step:nth-child(odd) .dive__dot, .dive__step:nth-child(even) .dive__dot { left: -40px; right: auto; }
  .why__grid { grid-template-columns: 1fr; gap: 56px; }
  .trait:nth-child(2), .trait:nth-child(3) { margin-top: 0; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__tag { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .nav { padding: 10px 12px; }
  .nav__bar { height: 56px; padding: 0 6px 0 16px; }
  .brand__mark { width: 44px; }
  .brand__word { font-size: 20px; }
  .hero__phase--1 { bottom: 96px; }
  .hero__title { font-size: clamp(3.4rem, 17vw, 6rem); }
  .hero__phase--2, .hero__phase--3 { left: var(--pad); right: var(--pad); max-width: none; bottom: 96px; }
  .hero__phase--3 { top: auto; margin-top: 0; }
  .depth { top: 96px; transform: none; gap: 8px; }
  .depth__scale { height: 16vh; }
  .depth__value b { font-size: 20px; }
  .scroll-hint { bottom: 20px; }
  .scroll-hint span { display: none; }
  .svc__list { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .manifesto__media { height: 62vh; }
  .manifesto__band figcaption { right: var(--pad); bottom: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}