:root {
  --black:#000; --white:#fff; --paper:#eee; --graphite:#231f20; --red:#a3251b;
  --ink-muted:#a6a6a6; --line:#2a2a2a; --accent:#e34d3c;
  --font-display:"Oswald","Arial Narrow",sans-serif;
  --font-sans:"Poppins",system-ui,sans-serif;
  --pad:120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--black); color: var(--white); font-family: var(--font-sans); }
a { color: inherit; text-decoration: none; }
img { display: block; }

.eyebrow { font-family: var(--font-display); font-weight: 500; font-size: 13px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.muted-label { font-family: var(--font-display); font-weight: 500; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-muted); }
.btn { display: inline-block; background: var(--accent); color: #000; font-family: var(--font-display); font-weight: 500; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; padding: 16px 32px; border: none; cursor: pointer; }
.btn:hover { opacity: .9; }

/* ---- NAV ---- */
.nav { position: absolute; top: 0; left: 0; right: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; padding: 40px var(--pad); }
.nav img { height: 64px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 48px; font-family: var(--font-display); font-weight: 500; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; }
.nav-link { color: rgba(255,255,255,.72); transition: color .15s; }
.nav-link:hover, .nav-link.is-current { color: var(--white); }

/* ---- HERO ---- */
.hero { position: relative; width: 100%; height: 860px; overflow: hidden; }
.hero-slide { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 30%; opacity: 0; animation: heroFade 20s ease-in-out infinite; }
@keyframes heroFade { 0% { opacity: 0 } 4% { opacity: 1 } 20% { opacity: 1 } 24% { opacity: 0 } 100% { opacity: 0 } }
.hero-shade { position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.15) 30%, rgba(0,0,0,.25) 60%, rgba(0,0,0,.88) 100%); }
.hero-copy { position: absolute; left: var(--pad); right: var(--pad); bottom: 130px; z-index: 2; display: flex; flex-direction: column; gap: 28px; max-width: 900px; }
.hero-copy h1 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 68px; line-height: 1.08; }
.hero-copy p { margin: 0; font-size: 19px; line-height: 1.6; color: rgba(255,255,255,.82); max-width: 560px; }
.hero-copy .btn { align-self: flex-start; margin-top: 12px; }
.hero-scroll { position: absolute; right: var(--pad); bottom: 48px; z-index: 2; display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 500; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.6); }
.hero-scroll span { width: 22px; height: 1px; background: rgba(255,255,255,.5); }
.hero-brand { position: absolute; left: var(--pad); bottom: 48px; z-index: 2; opacity: 0; animation: heroFade 20s ease-in-out infinite; font-family: var(--font-display); font-weight: 500; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }

/* ---- NASIL ÇALIŞIYORUZ ---- */
.process { position: relative; width: 100%; height: 400vh; }
.process-pin { position: sticky; top: 0; height: 100vh; width: 100%; overflow: hidden; background: var(--black); }
.process-step { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; pointer-events: none; }
.process-step.is-active { opacity: 1; pointer-events: auto; }
.process-step[data-step="0"] { opacity: 1; }
.process-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); }
.process-scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.82) 0%, rgba(0,0,0,.5) 46%, rgba(0,0,0,.22) 100%); }
.process-step.side .process-img { left: 42%; width: 58%; transform: none; }
.process-step.side .process-scrim { background: linear-gradient(90deg, #000 0%, #000 41%, rgba(0,0,0,.55) 47%, rgba(0,0,0,0) 62%); }
.process-text { position: absolute; left: var(--pad); top: 50%; transform: translateY(-50%); max-width: 680px; display: flex; flex-direction: column; gap: 22px; }
.process-text .step-no { font-family: var(--font-display); font-weight: 500; font-size: 15px; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); }
.process-text h3 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 52px; line-height: 1.12; }
.process-text p { margin: 0; font-size: 17px; line-height: 1.6; color: rgba(255,255,255,.75); max-width: 480px; }
.process-title { position: absolute; left: var(--pad); top: 56px; z-index: 2; }
.process-dots { position: absolute; right: var(--pad); top: 50%; transform: translateY(-50%); z-index: 2; display: flex; flex-direction: column; gap: 14px; }
.process-dot { width: 6px; height: 6px; border-radius: 999px; background: rgba(255,255,255,.25); transition: background .3s; }
.process-dot.is-active { background: var(--white); }

/* ---- MARKALAR ---- */
.brands { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 0; --n: 5; }
.logo-slider { display: flex; width: 100%; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.logo-track { display: flex; flex: 0 0 auto; min-width: 100%; animation: logoSlide 45s linear infinite; }
.logo-slider:hover .logo-track { animation-play-state: paused; }
@keyframes logoSlide { to { transform: translateX(-100%); } }
.logo-cell { flex: 0 0 calc(100vw / var(--n)); display: flex; align-items: center; justify-content: center; height: 128px; padding: 20px 28px; }
.logo-cell img { height: var(--h); width: auto; max-width: 100%; object-fit: contain; opacity: .72; transition: opacity .2s; }
.logo-cell:hover img { opacity: 1; }

/* ---- SECTION BAŞLIĞI ---- */
.section { border-top: 1px solid var(--line); padding: 120px var(--pad) 140px; display: flex; flex-direction: column; gap: 56px; }
.section-head { display: flex; flex-direction: column; gap: 18px; max-width: 720px; }
.section-head h2 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 44px; line-height: 1.15; }
.section-head p { margin: 0; font-size: 17px; line-height: 1.6; color: rgba(255,255,255,.7); }

/* ---- SOSYAL MEDYA POST SLAYTI ---- */
.social { background: var(--graphite); }
.social-bar { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.slider-btns { display: flex; gap: 12px; }
.slider-btn { width: 52px; height: 52px; border-radius: 999px; border: 1px solid rgba(255,255,255,.4); background: transparent; color: var(--white); font-size: 20px; cursor: pointer; transition: background .15s, border-color .15s; }
.slider-btn:hover { background: var(--accent); border-color: var(--accent); color: #000; }
.post-track { display: flex; gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; margin: 0 calc(var(--pad) * -1); padding: 0 var(--pad); scroll-padding: 0 var(--pad); -webkit-overflow-scrolling: touch; }
.post-track::-webkit-scrollbar { display: none; }
.post { position: relative; flex: 0 0 340px; aspect-ratio: 4 / 5; scroll-snap-align: start; overflow: hidden; background: #111; }
.post img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.22,.8,.3,1); }
.post:hover img { transform: scale(1.05); }
.slider-progress { height: 2px; background: rgba(255,255,255,.15); }
.slider-progress span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }

/* ---- İLETİŞİM / FOOTER ---- */
.cta { border-top: 1px solid var(--line); padding: 120px var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.cta h2 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 56px; line-height: 1.1; max-width: 760px; }
.contact { display: flex; flex-direction: column; gap: 22px; min-width: 320px; }
.contact-row { display: flex; align-items: baseline; gap: 24px; font-size: 18px; border-bottom: 1px solid var(--line); padding-bottom: 18px; }
.contact-row .muted-label { flex: 0 0 90px; }
.contact-row a { transition: color .15s; }
.contact-row a:hover { color: var(--accent); }
.social-links { display: flex; gap: 12px 26px; flex-wrap: wrap; }
.social-links a { display: inline-flex; align-items: center; gap: 10px; }
.ico { width: 20px; height: 20px; flex: none; }
.contact .btn { align-self: flex-start; margin-top: 6px; }
.footer { border-top: 1px solid var(--line); padding: 40px var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; font-size: 14px; color: rgba(255,255,255,.5); }
.footer img { height: 56px; width: auto; }

/* ---- TABLET ---- */
@media (max-width: 1100px) {
  :root { --pad: 56px; }
  .brands { --n: 3; }
  .hero-copy h1 { font-size: 52px; }
  .process-text h3 { font-size: 42px; }
}

/* ---- MOBİL ---- */
@media (max-width: 720px) {
  :root { --pad: 20px; }
  .nav { padding: 20px var(--pad); }
  .nav img { height: 48px; }
  .nav-links { gap: 18px; font-size: 12px; }
  .nav-links .hide-sm { display: none; }
  .hero { height: 100svh; min-height: 620px; }
  .hero-copy { bottom: 110px; gap: 20px; }
  .hero-copy h1 { font-size: 36px; }
  .hero-copy p { font-size: 16px; }
  .hero-scroll { display: none; }
  .process-text h3 { font-size: 30px; }
  .process-text p { font-size: 15px; }
  .process-title { top: 90px; }
  .process-dots { right: 16px; }
  .process-scrim, .process-step.side .process-scrim { background: linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,.85)); }
  .process-step.side .process-img { left: 0; width: 100%; transform: scale(1.06); }
  .logo-cell { height: 96px; padding: 14px 16px; }
  .logo-cell img { height: calc(var(--h) * .75); }
  .section { padding: 72px var(--pad) 80px; gap: 36px; }
  .section-head h2 { font-size: 32px; }
  .social-bar { flex-direction: column; align-items: flex-start; }
  .post { flex-basis: 74vw; }
  .cta { padding: 72px var(--pad); }
  .cta h2 { font-size: 34px; }
  .contact { min-width: 0; width: 100%; }
  .contact-row { font-size: 16px; gap: 16px; }
  .contact-row .muted-label { flex-basis: 76px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide, .hero-brand { animation: none; }
  .logo-track { animation: none; }
  .logo-slider { overflow-x: auto; }
  .hero-slide:first-of-type, .hero-brand:first-of-type { opacity: 1; }
  html { scroll-behavior: auto; }
}