@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,300;0,400;0,700;1,300;1,400&family=DM+Sans:wght@200;300;400;500&family=Space+Mono:wght@400;700&display=swap');

:root {
  /* ── Ana Renkler (Açık, Aydınlık Palet) ── */
  --bg:         #f7f5f0;           /* Krem beyaz zemin        */
  --bg2:        #ede9e1;           /* Hafif koyu krem          */
  --surface:    #ffffff;           /* Kart yüzeyler            */
  --text:       #1a1a2e;           /* Derin lacivert yazı      */
  --text-2:     #3d3d5c;           /* İkinci seviye yazı       */
  --muted:      #6b6b8a;           /* Soluk / yardımcı yazı   */

  /* ── Vurgu Renkler ── */
  --teal:       #2a9d8f;           /* Ana mavi-yeşil           */
  --teal-light: #e8f5f3;           /* Teal açık ton            */
  --teal-glow:  rgba(42,157,143,.18);
  --coral:      #e76f51;           /* Sıcak kırmızı-mercan    */
  --coral-light:#fdf0ec;
  --sky:        #457b9d;           /* Mavi                     */
  --sky-light:  #eaf1f7;
  --sage:       #81b29a;           /* Açık yeşil               */
  --gold:       #c9963a;           /* Altın vurgu              */

  /* ── Sınır & Gölge ── */
  --border:     rgba(26,26,46,.10);
  --border-2:   rgba(42,157,143,.25);
  --shadow-sm:  0 4px 16px rgba(26,26,46,.08);
  --shadow-md:  0 12px 40px rgba(26,26,46,.12);
  --shadow-lg:  0 24px 64px rgba(26,26,46,.16);
}

/* ══ TEMEL SIFIRLAMA VE OPTİMİZASYON ══ */
*, *::before, *::after { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
}

html { 
  scroll-behavior: auto; 
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { 
  display: block; 
  width: 100%; 
  height: 100%; 
  object-fit: cover; 
}

button { 
  font-family: inherit; 
  border: none; 
  background: none; 
  color: inherit; 
  cursor: none; 
  outline: none; 
}

a { 
  text-decoration: none; 
  color: inherit; 
  cursor: none; 
}

/* ══ SCROLLBAR ══ */
::-webkit-scrollbar { 
  width: 5px; 
}
::-webkit-scrollbar-track { 
  background: var(--bg2); 
}
::-webkit-scrollbar-thumb { 
  background: var(--teal); 
  border-radius: 10px; 
}

/* ══ NOISE OVERLAY ══ */
.noise {
  position: fixed; 
  inset: 0; 
  pointer-events: none; 
  z-index: 9000;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .015; 
  mix-blend-mode: multiply;
}

@media (max-width: 768px) {
  .noise { display: none; }
}

/* ══ ÖZEL SİHİRLİ İMLEÇ (CURSOR) ══ */
#cur-dot {
  position: fixed; 
  top: 0; 
  left: 0; 
  width: 7px; 
  height: 7px;
  background: var(--teal); 
  border-radius: 50%;
  pointer-events: none; 
  z-index: 9999;
  will-change: transform; 
}

#cur-ring {
  position: fixed; 
  top: 0; 
  left: 0; 
  width: 38px; 
  height: 38px;
  border: 1.5px solid var(--coral); 
  border-radius: 50%;
  pointer-events: none; 
  z-index: 9998;
  will-change: transform;
  transition: width .3s ease, height .3s ease, border-color .3s ease, background .3s ease;
}

#cur-ring.big {
  width: 65px; 
  height: 65px;
  border-color: var(--teal);
  background: var(--teal-glow);
}

body.overlay-active #cur-dot,
body.overlay-active #cur-ring { 
  display: none !important; 
}

.fso-overlay, .fso-overlay *, #team-overlay, #team-overlay * { 
  cursor: auto !important; 
}

.fso-close, #to-close { 
  cursor: pointer !important; 
}

/* ══ GLOW EFEKTİ ══ */
.glow-sec { 
  position: relative; 
  overflow: hidden; 
}

.glow-sec::before {
  content: ''; 
  position: absolute; 
  inset: 0; 
  z-index: 0; 
  pointer-events: none;
  background: radial-gradient(circle 550px at var(--mx,50%) var(--my,50%), var(--teal-glow), transparent 70%);
  transition: opacity .3s; 
  opacity: 0;
}

.glow-sec:hover::before { 
  opacity: 1; 
}

/* ══════════════════════════════════════════
   NAVİGASYON (NAVBAR) VE RENK DÖNÜŞÜMLERİ
   ══════════════════════════════════════════ */
nav {
  position: fixed; 
  top: 0; 
  left: 0; 
  right: 0; 
  z-index: 1000;
  display: flex; 
  justify-content: space-between; 
  align-items: flex-start;
  padding: 8px 4vw;
  transition: all 0.45s cubic-bezier(.4,0,.2,1);
  background: transparent;
}

nav.stuck {
  background: rgba(247,245,240,.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0 5vw;
  align-items: center;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.logo { 
  display: flex; 
  align-items: center; 
  z-index: 1001; 
  transition: transform .3s; 
}

.logo img {
  height: 110px; 
  width: auto; 
  object-fit: contain;
  transition: height .4s ease;
  filter: drop-shadow(0 0 12px rgba(42,157,143,.3));
}

nav.stuck .logo img { 
  height: 52px; 
}

.nav-links {
  display: flex; 
  align-items: center; 
  gap: 38px;
  margin-top: 30px;
  transition: margin .4s ease;
}

nav.stuck .nav-links { 
  margin-top: 0; 
}

.nav-item {
  font-family: 'Space Mono', monospace;
  font-size: .68rem; 
  font-weight: 400;
  letter-spacing: .18em; 
  text-transform: uppercase;
  position: relative;
}

.nav-item::after {
  content: ''; 
  position: absolute; 
  bottom: -4px; 
  left: 0;
  width: 0; 
  height: 2px;
  background: var(--teal);
  transition: width .3s ease;
}

/* 1. Sayfa en üstteyken (Koyu arka plandayken) menü yazıları BEYAZ olsun */
nav:not(.stuck) .nav-item, 
nav:not(.stuck) .nav-link,
nav:not(.stuck) .lang-switcher button,
nav:not(.stuck) .burger-menu i {
  color: #ffffff; 
  transition: color 0.35s ease;
}

/* Sayfa en üstteyken üzerine gelince (Hover) rengi */
nav:not(.stuck) .nav-item:hover, 
nav:not(.stuck) .nav-link:hover,
nav:not(.stuck) .lang-switcher button:hover {
  color: var(--teal); 
}

/* 2. Aşağı kaydırınca (.stuck sınıfı gelince) yazılar SİYAH/KOYU LACİVERT olsun */
nav.stuck .nav-item, 
nav.stuck .nav-link,
nav.stuck .lang-switcher button,
nav.stuck .burger-menu i {
  color: var(--text);
  transition: color 0.35s ease;
}

/* Aşağı kaydırınca üzerine gelince (Hover) rengi */
nav.stuck .nav-item:hover, 
nav.stuck .nav-link:hover,
nav.stuck .lang-switcher button:hover {
  color: var(--teal); 
}

.nav-btn {
  padding: 10px 24px;
  border: 1.5px solid var(--teal); 
  border-radius: 50px;
  font-size: .68rem; 
  text-transform: uppercase;
  letter-spacing: .12em; 
  font-family: 'Space Mono', monospace;
  background: rgba(7, 231, 204, 0.06);
  color: var(--teal);
  transition: all .3s ease;
}

.nav-btn:hover {
  background: var(--teal); 
  color: #fff;
  box-shadow: 0 0 24px rgba(42,157,143,.4);
}

/* ══ REVEAL ANİMASYONLARI (Scroll Etkisi) ══ */
.reveal {
  opacity: 0; 
  transform: translateY(36px);
  transition: opacity .8s cubic-bezier(.19,1,.22,1), transform .8s cubic-bezier(.19,1,.22,1);
}

.reveal.revealed { 
  opacity: 1; 
  transform: translateY(0); 
}

.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .32s; }

.title-reveal { 
  overflow: hidden; 
}

.title-reveal span {
  display: block;
  transform: translateY(110%);
  transition: transform .9s cubic-bezier(.19,1,.22,1);
}

.title-reveal.revealed span { 
  transform: translateY(0); 
}

/* ══ SECTION LABEL ══ */
.sec-label {
  font-family: 'Space Mono', monospace;
  font-size: .48rem; 
  letter-spacing: .52em;
  color: var(--teal); 
  display: block;
  margin-bottom: 16px; 
  text-transform: uppercase;
}

/* ══ PREMIUM FOOTER ANA YAPISI ══ */
footer {
  background: #ffffff;   
  padding: 60px 5vw;
  position: relative;
  text-align: left; 
}

footer::before {
  content: '';
  position: absolute; 
  top: 0; 
  left: 0; 
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--teal), var(--coral), var(--sky));
}

.footer-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.ft-column {
  flex: 1;
  display: flex;
  align-items: center;
}

.ft-pages {
  justify-content: flex-start;
  gap: 24px;
}

.ft-main-logo {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 60px; 
  z-index: 10;
}

.central-logo {
  position: absolute; 
  height: 150px; 
  width: auto;
  max-height: none; 
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) translateZ(0); 
  object-fit: contain;
  z-index: 99; 
  filter: drop-shadow(0 0 15px rgba(0,0,0,0.08)); 
  transition: transform 0.4s ease;
  image-rendering: -webkit-optimize-contrast; 
  will-change: transform;
}

/* Hover etkisinin pointer-events engeline takılmaması için ebeveyne bağlandı */
.ft-main-logo:hover .central-logo {
  transform: translate(-50%, -50%) scale(1.05);
}

.ft-socials {
  justify-content: flex-end;
  gap: 20px;
}

/* ══ SOSYAL MEDYA İKONLARI ══ */
.social-icon-link {
  color: var(--text-2);
  font-size: 1.4rem;
  transition: all 0.4s ease;
  text-decoration: none;
}

.social-icon-link:hover {
  color: var(--teal);
  transform: translateY(-3px);
}

/* ══ FOOTER SAYFA LİNKLERİ ══ */
.ft-link {
  font-family: 'Space Mono', monospace;
  font-size: .65rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-2); 
  text-decoration: none;
  transition: color .3s ease;
}

.ft-link:hover {
  color: var(--teal); 
}

/* ══ MOBİL UYUMLULUK (RESPONSIVE) ══ */
@media (max-width: 768px) {
  /* Navbar Mobil Ayarları */
  .nav-links { 
    display: none; 
  } 
  nav { 
    justify-content: center; 
    padding: 12px 4vw;
  }
  .logo img { 
    height: 80px; 
  }
  nav.stuck .logo img {
    height: 48px;
  }
  
  /* Footer Mobil Ayarları */
  footer { 
    padding: 60px 5vw 40px; 
  }
  
  .footer-wrapper {
    flex-direction: column;
    gap: 40px;
    text-align: center;
  }
  
  .ft-column {
    width: 100%;
    justify-content: center;
  }
  
  .ft-pages, .ft-socials { 
    justify-content: center; 
    flex-wrap: wrap; 
  }
  
  .ft-pages { 
    order: 2; 
  }
  
  .ft-main-logo { 
    order: 1; 
    margin-bottom: 20px;
    height: auto;
  }
  
  .central-logo {
    position: relative;
    top: 0;
    left: 0;
    transform: none;
    height: 100px;
    margin: 0 auto;
  }
  
  .ft-main-logo:hover .central-logo {
    transform: scale(1.05);
  }
  
  .ft-socials { 
    order: 3; 
  }
}
/* ══════════════════════════════════════════
   MOBİL HAMBURGER MENÜ
══════════════════════════════════════════ */
.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 1100;
  background: none;
  border: none;
  padding: 0;
  position: relative;
}

.burger-menu span {
  display: block;
  width: 26px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.35s cubic-bezier(.4,0,.2,1);
  transform-origin: center;
}

nav.stuck .burger-menu span {
  background: var(--text);
}

.burger-menu span:nth-child(1) { margin-bottom: 6px; }
.burger-menu span:nth-child(3) { margin-top: 6px; }

.burger-menu.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.burger-menu.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.burger-menu.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* MOBİL MENÜ PANELİ */
.mobile-nav-panel {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(247,245,240,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1050;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

.mobile-nav-panel.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav-panel .mob-nav-item {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  font-weight: 400;
  color: var(--text);
  text-decoration: none;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  width: 80%;
  text-align: center;
  transition: color 0.25s;
}

.mobile-nav-panel .mob-nav-item:last-child {
  border-bottom: none;
}

.mobile-nav-panel .mob-nav-item:hover {
  color: var(--teal);
}

.mobile-nav-panel .mob-lang-row {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

.mobile-nav-panel .mob-lang-btn {
  font-family: 'Space Mono', monospace;
  font-size: .7rem;
  letter-spacing: .18em;
  padding: 8px 18px;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.25s;
  background: none;
}

.mobile-nav-panel .mob-lang-btn.active,
.mobile-nav-panel .mob-lang-btn:hover {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

/* NAV'DA BURGER GÖSTERİMİ */
@media (max-width: 768px) {
  .burger-menu { display: flex; }
  .nav-links { display: none !important; }
  nav {
    justify-content: space-between;
    align-items: center;
    padding: 8px 4vw;
  }
}

/* TABLET (768px – 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
  .nav-links { gap: 18px; }
  .nav-item { font-size: .6rem; }
  .nav-btn { padding: 8px 16px; font-size: .6rem; }
  .logo img { height: 80px; }
}

/* ══ VİDEO LAZY LOAD PERFORMANS ══ */
video[data-src] {
  background: #111;
}

/* ══ iOS INPUT ZOOM FİX (16px altı fontlarda Safari zoom yapıyor) ══ */
@media (max-width: 768px) {
  input, textarea, select {
    font-size: 16px !important;
  }
}

/* ══ SAFE AREA (iPhone X+ notch desteği) ══ */
nav {
  padding-top: max(8px, env(safe-area-inset-top));
  padding-left: max(4vw, env(safe-area-inset-left));
  padding-right: max(4vw, env(safe-area-inset-right));
}

footer {
  padding-bottom: max(40px, calc(40px + env(safe-area-inset-bottom)));
}

/* ══ GENEL TOUCH HEDEF BOYUTU ══ */
@media (hover: none) {
  .nav-item, .ft-link, .social-icon-link, a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

/* ── MOBİL GENEL İYİLEŞTİRMELER ── */
@media (max-width: 768px) {
  /* Görsellerin taşmasını önle */
  img {
    max-width: 100%;
    height: auto;
  }
  
  /* Genel section padding azalt */
  section {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  /* Büyük başlıkları küçült */
  h1 { font-size: clamp(1.6rem, 6vw, 2.5rem) !important; }
  h2 { font-size: clamp(1.3rem, 5vw, 2rem) !important; }
}

/* ── PERFORMANS: GPU HIZLANDIRMA ── */
.about-bg-layer,
.about-text-layer,
.oi-hero-bg {
  will-change: transform;
  transform: translateZ(0);
}