/* =============================================================
   NK HÜCRESİ LANDING PAGE — STYLE
   Tema: High-Key medikal estetik
   Renkler: Açık gri tonları + elektrik mavisi/camgöbeği vurgu
   ============================================================= */

/* ----- CSS Değişkenleri (Design Tokens) ----- */
:root {
  /* Arka plan tonları */
  --bg-primary:    #ffffff;
  --bg-subtle:     #f8f9fa;
  --bg-muted:      #f1f3f5;
  --bg-overlay:    rgba(241, 243, 245, 0.65);

  /* Metin renkleri */
  --text-primary:  #1a1a2e;
  --text-secondary:#495057;
  --text-muted:    #868e96;

  /* Vurgu renkleri */
  --accent:        #0ea5e9;
  --accent-dark:   #0284c7;
  --accent-light:  #7dd3fc;
  --accent-glow:   rgba(14, 165, 233, 0.25);

  /* Tipografi */
  --font-family:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Geçişler */
  --transition-fast:   0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Navbar yüksekliği */
  --navbar-height: 72px;
}


/* ----- Reset & Temel ----- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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


/* =============================================================
   NAVBAR
   ============================================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  z-index: 1000;
  transition: background var(--transition-smooth),
              box-shadow var(--transition-smooth),
              backdrop-filter var(--transition-smooth);
}

/* Scroll sonrası aktif olan sınıf (JS ile eklenir) */
.navbar--scrolled {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06),
              0 4px 12px rgba(0, 0, 0, 0.04);
}

.navbar__inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ----- Logo ----- */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  transition: opacity var(--transition-fast);
}

.navbar__logo:hover {
  opacity: 0.7;
}

/* Genkord logo görseli */
.navbar__logo-img {
  height: 22px;
  width: auto;
  display: block;
}

/* ----- Hamburger (Mobil) ----- */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast),
              opacity var(--transition-fast);
}

/* Hamburger açık durumu */
.navbar__hamburger--open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__hamburger--open span:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger--open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ----- Navigasyon Linkleri ----- */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
}

.navbar__link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: width var(--transition-smooth);
}

.navbar__link:hover {
  color: var(--text-primary);
}

.navbar__link:hover::after {
  width: 100%;
}

.navbar__link--active {
  color: var(--accent);
}

.navbar__link--active::after {
  width: 100%;
  background: var(--accent);
}

/* Therapy Indicator Pills */
.navbar__therapies {
  display: flex;
  gap: 0.5rem;
}
.navbar__therapy-link {
  display: -webkit-inline-flex;
  display: inline-flex;
  -webkit-align-items: center;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 7px 16px;
  white-space: nowrap;
  border-radius: 20px;
  border: 1px solid transparent;
  -webkit-transition: all 0.3s ease;
  transition: all 0.3s ease;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.navbar__therapy-dot {
  display: block;
  width: 8px; height: 8px;
  min-width: 8px; min-height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.navbar__therapy-link--hub {
  color: var(--text-secondary);
  border-color: rgba(100,116,139,0.2);
  background: rgba(100,116,139,0.04);
}
.navbar__therapy-link--hub .navbar__therapy-dot { background: #64748b; }
.navbar__therapy-link--hub:hover {
  background: rgba(100,116,139,0.1);
  border-color: rgba(100,116,139,0.4);
}
.navbar__therapy-link--nk {
  color: var(--accent-dark, #0369a1);
  border-color: rgba(14,165,233,0.2);
  background: rgba(14,165,233,0.04);
}
.navbar__therapy-link--nk .navbar__therapy-dot { background: var(--accent, #0ea5e9); }
.navbar__therapy-link--nk:hover {
  background: rgba(14,165,233,0.1);
  border-color: rgba(14,165,233,0.4);
}
.navbar__therapy-link--active {
  border-color: rgba(14,165,233,0.5);
  background: rgba(14,165,233,0.12);
}
.navbar__therapy-link--cik {
  color: #b45309;
  border-color: rgba(245,158,11,0.2);
  background: rgba(245,158,11,0.04);
}
.navbar__therapy-link--cik .navbar__therapy-dot { background: #f59e0b; }
.navbar__therapy-link--cik:hover {
  background: rgba(245,158,11,0.1);
  border-color: rgba(245,158,11,0.4);
}
.navbar__therapy-link--dc {
  color: #047857;
  border-color: rgba(16,185,129,0.2);
  background: rgba(16,185,129,0.04);
}
.navbar__therapy-link--dc .navbar__therapy-dot { background: #10b981; }
.navbar__therapy-link--dc:hover {
  background: rgba(16,185,129,0.1);
  border-color: rgba(16,185,129,0.4);
}

/* ----- Dil Toggle ----- */
.navbar__lang {
  margin-left: auto;
  flex-shrink: 0;
}
.navbar__lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  border: 1.5px solid rgba(14,165,233,0.3);
  border-radius: 20px;
  font-size: 0.8rem;
  font-family: inherit;
  text-decoration: none;
  color: inherit;
  background: rgba(14,165,233,0.04);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease, background 0.3s ease;
}
.navbar__lang-btn:hover {
  border-color: var(--accent);
  background: rgba(14,165,233,0.08);
  box-shadow: 0 0 14px rgba(14,165,233,0.18);
  transform: scale(1.06);
}
.navbar__lang-label {
  transition: color 0.3s ease, opacity 0.3s ease;
  color: var(--text-muted);
  font-weight: 400;
  opacity: 0.4;
}
.navbar__lang-label--active {
  color: var(--accent);
  font-weight: 700;
  opacity: 1;
}
.navbar__lang-btn:hover .navbar__lang-label--active {
  opacity: 0.35;
}
.navbar__lang-btn:hover .navbar__lang-label:not(.navbar__lang-label--active) {
  opacity: 1;
  color: var(--accent);
  font-weight: 600;
}
.navbar__lang-divider {
  color: var(--text-muted);
  opacity: 0.3;
  font-weight: 300;
}


/* =============================================================
   HERO SECTION
   ============================================================= */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  overflow: hidden;
}

/* ----- Parallax Arka Plan ----- */
.hero__background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-image {
  width: 100%;
  height: 120%; /* Parallax için ekstra alan */
  object-fit: cover;
  object-position: center center;
  will-change: transform;
  transform: translateY(0);
}

/* Sağ tarafa doğru gradient overlay — metin okunabilirliği */
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    /* Sağdan gelen yoğun beyaz geçiş */
    linear-gradient(
      to left,
      rgba(248, 249, 250, 0.95) 0%,
      rgba(248, 249, 250, 0.85) 20%,
      rgba(248, 249, 250, 0.45) 50%,
      rgba(248, 249, 250, 0.0) 75%
    ),
    /* Alttan hafif geçiş */
    linear-gradient(
      to top,
      rgba(248, 249, 250, 0.6) 0%,
      rgba(248, 249, 250, 0.0) 30%
    );
}

/* ----- Hero İçerik ----- */
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 580px;
  padding: 2rem clamp(1.5rem, 5vw, 4rem);
  margin-right: clamp(2rem, 8vw, 10rem);
}

/* Üst Etiket */
.hero__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeUp 0.8s ease forwards 0.3s;
}

/* Ana Başlık */
.hero__title {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 0.9s ease forwards 0.5s;
}

.hero__title-highlight {
  font-weight: 600;
  color: var(--accent);
}

/* Alt Başlık */
.hero__subtitle {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 0.9s ease forwards 0.7s;
}

.hero__subtitle strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* ----- CTA Butonu ----- */
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 60px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background var(--transition-fast),
              box-shadow var(--transition-smooth),
              transform var(--transition-fast);
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 0.9s ease forwards 0.9s;
}

.hero__cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.2) 0%,
    rgba(255,255,255,0) 60%
  );
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.hero__cta:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 20px var(--accent-glow),
              0 8px 32px rgba(14, 165, 233, 0.15);
  transform: translateY(-2px);
}

.hero__cta:hover::before {
  opacity: 1;
}

.hero__cta:active {
  transform: translateY(0);
}

.hero__cta-arrow {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.hero__cta:hover .hero__cta-arrow {
  transform: translateY(3px);
}

/* ----- Scroll Göstergesi ----- */
.hero__scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  opacity: 0;
  animation: heroFadeUp 0.8s ease forwards 1.2s;
}

.hero__scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.hero__scroll-wheel {
  width: 3px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollWheel 1.8s ease-in-out infinite;
}

.hero__scroll-text {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}


/* =============================================================
   NK HÜCRELERİ NEDİR? — WHATSNK SECTION
   ============================================================= */
.whatsnk {
  position: relative;
  padding: clamp(4rem, 8vw, 8rem) clamp(1.25rem, 4vw, 3rem);
  background: var(--bg-subtle);
  overflow: hidden;
}

/* ----- Bölüm Başlığı ----- */
.whatsnk__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem;
}

.whatsnk__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.35rem 1rem;
  border: 1.5px solid var(--accent-light);
  border-radius: 40px;
  margin-bottom: 1.25rem;
}

.whatsnk__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.whatsnk__title span {
  font-weight: 700;
  color: var(--accent);
}

.whatsnk__desc {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ----- Explorer: Hücre + Bilgi Kartları (Yan yana) ----- */
.whatsnk__explorer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

/* ----- Hücre Görseli Konteyneri ----- */
.whatsnk__cell-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.whatsnk__cell {
  position: relative;
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1 / 0.72;
  overflow: visible;
  background: transparent;
  /* Kenarları yumuşak gradient ile eriterek sayfaya karıştır */
  -webkit-mask-image: radial-gradient(
    ellipse 70% 65% at 50% 50%,
    #000 40%,
    transparent 100%
  );
  mask-image: radial-gradient(
    ellipse 70% 65% at 50% 50%,
    #000 40%,
    transparent 100%
  );
}

.whatsnk__cell-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transition: transform 0.6s ease;
}

.whatsnk__cell:hover .whatsnk__cell-img {
  transform: scale(1.03);
}

/* ----- Hücre Canlılık Efektleri ----- */

/* 1. Nefes alma — çok ince scale pulsasyonu */
.whatsnk__cell-img {
  animation: cellBreathe 6s ease-in-out infinite;
}

/* 2. Biyolüminesans parıltı — dönen gradient overlay */
.whatsnk__cell::before {
  content: '';
  position: absolute;
  inset: -20%;
  z-index: 2;
  pointer-events: none;
  background: conic-gradient(
    from 0deg,
    transparent 0%,
    rgba(14, 165, 233, 0.06) 8%,
    transparent 16%,
    transparent 45%,
    rgba(125, 211, 252, 0.05) 52%,
    transparent 60%,
    transparent 100%
  );
  animation: cellGlow 10s linear infinite;
  border-radius: inherit;
  mix-blend-mode: screen;
}

/* 3. Işık taraması — yavaş hareket eden parlak şerit */
.whatsnk__cell::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(
    105deg,
    transparent 0%,
    transparent 35%,
    rgba(255, 255, 255, 0.08) 45%,
    rgba(125, 211, 252, 0.1) 50%,
    rgba(255, 255, 255, 0.08) 55%,
    transparent 65%,
    transparent 100%
  );
  animation: lightSweep 8s ease-in-out infinite;
}

/* 4. Yüzen mikro parçacıklar (CSS-only) */
.whatsnk__cell-container {
  position: relative;
}

.whatsnk__cell-container::before,
.whatsnk__cell-container::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 4;
  opacity: 0.5;
}

/* Parçacık 1 — sol üst */
.whatsnk__cell-container::before {
  width: 6px;
  height: 6px;
  background: var(--accent-light);
  top: 8%;
  left: 12%;
  box-shadow:
    28px 14px 0 2px rgba(14, 165, 233, 0.15),
    -8px 40px 0 1px rgba(125, 211, 252, 0.2),
    50px -10px 0 1.5px rgba(14, 165, 233, 0.12);
  animation: floatParticle1 7s ease-in-out infinite;
}

/* Parçacık 2 — sağ alt */
.whatsnk__cell-container::after {
  width: 5px;
  height: 5px;
  background: rgba(14, 165, 233, 0.2);
  bottom: 12%;
  right: 8%;
  box-shadow:
    -20px -18px 0 2px rgba(125, 211, 252, 0.18),
    12px -35px 0 1px rgba(14, 165, 233, 0.14),
    -40px 8px 0 1.5px rgba(125, 211, 252, 0.16);
  animation: floatParticle2 9s ease-in-out infinite;
}

/* 5. Dış glow nabzı — kaldırıldı (çerçevesiz tasarım) */

/* ----- HOTSPOT (İnteraktif Nokta) ----- */
.hotspot {
  position: absolute;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Başlangıçta gizli — scroll ile belirir */
  opacity: 0;
  scale: 0.5;
  transition: opacity 0.5s ease, scale 0.5s ease;
}

/* Scroll tetiklendikten sonra görünür */
.hotspot--visible {
  opacity: 1;
  scale: 1;
}

/* Nabız efekti (ping) */
.hotspot__ping {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent-glow);
  animation: hotspotPing 2.5s ease-out infinite;
}

.hotspot--active .hotspot__ping {
  animation: none;
  background: rgba(14, 165, 233, 0.12);
}

/* Ana nokta */
.hotspot__dot {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 2.5px solid #fff;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.35);
  transition: transform var(--transition-fast),
              background var(--transition-fast),
              box-shadow var(--transition-fast);
}

/* Numara */
.hotspot__number {
  position: absolute;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fff;
  z-index: 1;
  pointer-events: none;
}

/* Hover */
.hotspot:hover .hotspot__dot {
  transform: scale(1.25);
  box-shadow: 0 2px 16px rgba(14, 165, 233, 0.5);
}

/* Aktif durum */
.hotspot--active .hotspot__dot {
  background: var(--accent-dark);
  transform: scale(1.35);
  box-shadow: 0 0 0 4px var(--accent-glow),
              0 4px 20px rgba(14, 165, 233, 0.4);
}

/* ----- Bilgi Kartları Alanı ----- */
.whatsnk__info {
  position: relative;
  min-height: 400px;
}

/* ----- Tek Bilgi Kartı ----- */
.info-card {
  position: absolute;
  inset: 0;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--bg-primary);
  border-radius: 20px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03),
              0 8px 32px rgba(0, 0, 0, 0.04);
  /* Varsayılan: gizli */
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.45s ease,
              transform 0.45s ease;
}

/* Aktif kart */
.info-card--active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Varsayılan kart özel stili */
.info-card--default {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.info-card__icon {
  color: var(--accent-light);
  margin-bottom: 1.5rem;
}

/* Rozet (01, 02...) */
.info-card__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.info-card__title {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}

.info-card__subtitle {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  font-style: italic;
}

.info-card__text {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.info-card__text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* İstatistik kutusu */
.info-card__stat {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.85rem 1.1rem;
  background: var(--bg-subtle);
  border-radius: 12px;
  border-left: 3px solid var(--accent);
}

.info-card__stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.info-card__stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ----- Bağlantı SVG Çizgisi ----- */
.whatsnk__connector {
  display: none; /* Masaüstünde gösterilecek */
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
  color: var(--accent-light);
}

.whatsnk__connector-path {
  stroke-dasharray: 6 4;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.whatsnk__connector-path--visible {
  opacity: 0.6;
}

/* ----- Scroll Reveal Genel ----- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Staggered reveal — ikinci eleman biraz gecikmeli */
.whatsnk__explorer.reveal {
  transition-delay: 0.2s;
}


/* =============================================================
   ETKİ MEKANİZMASI — Sticky Split-Screen
   ============================================================= */
.mechanism {
  position: relative;
  padding: clamp(4rem, 8vw, 8rem) clamp(1.25rem, 4vw, 3rem);
  background: var(--bg-primary);
}

/* Parallax arka plan katmanı */
.mechanism__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.mechanism__bg-img {
  width: 100%;
  height: 130%; /* Parallax kayma için ekstra alan */
  object-fit: cover;
  object-position: center center;
  opacity: 0.8;
  will-change: transform;
  transform: translateY(0);
}

/* Arka plan üzerine hafif beyaz overlay — metin okunabilirliği */
.mechanism__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(255, 255, 255, 0.3) 30%,
    rgba(255, 255, 255, 0.4) 100%
  );
}

/* İçeriklerin arka planın üstünde kalması */
.mechanism__header,
.mechanism__split {
  position: relative;
  z-index: 1;
}

/* ----- Bölüm Başlığı ----- */
.mechanism__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto clamp(3rem, 6vw, 5rem);
}

.mechanism__label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.35rem 1rem;
  border: 1.5px solid var(--accent-light);
  border-radius: 40px;
  margin-bottom: 1.25rem;
}

.mechanism__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.mechanism__title span {
  font-weight: 700;
  color: var(--accent);
}

.mechanism__desc {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ----- Split Layout (Sol %40 / Sağ %60) ----- */
.mechanism__split {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: clamp(2rem, 4vw, 4rem);
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}

/* ----- Sol: Scroll eden adımlar ----- */
.mechanism__steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  /* Alt ve üste boşluk — sticky görselin ortaya denk gelmesi için */
  padding: 10vh 0 40vh;
}

/* Tek adım kartı */
.mechanism__step {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  padding-left: clamp(2rem, 3.5vw, 3rem);
  background: var(--bg-subtle);
  border-radius: 20px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  /* Varsayılan: soluk */
  opacity: 0.35;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease,
              border-color 0.4s ease, box-shadow 0.4s ease;
}

/* Sol vurgu çizgisi (varsayılan: gizli) */
.mechanism__step::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 0;
  width: 3px;
  border-radius: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Aktif adım */
.mechanism__step--active {
  opacity: 1;
  transform: translateY(0);
  background: var(--bg-primary);
  border-color: rgba(14, 165, 233, 0.12);
  box-shadow: 0 4px 24px rgba(14, 165, 233, 0.08),
              0 1px 3px rgba(0, 0, 0, 0.03);
}

.mechanism__step--active::before {
  transform: scaleY(1);
}

/* Adım rozeti — hem sayısal ("01") hem etiketli ("Gün 0-2") içerik destekler */
.mechanism__step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
  padding: 0.3em 0.85em;
  border-radius: 10px;
  background: var(--bg-muted);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  white-space: nowrap;        /* "Gün 0-2" tek satırda kalsın */
  transition: background 0.4s ease, color 0.4s ease;
}

.mechanism__step--active .mechanism__step-badge {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
}

.mechanism__step-title {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  letter-spacing: -0.01em;
}

.mechanism__step-subtitle {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  font-style: italic;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.mechanism__step--active .mechanism__step-subtitle {
  opacity: 1;
}

.mechanism__step-text {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.mechanism__step-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Detay kutusu */
.mechanism__step-detail {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  background: var(--bg-subtle);
  border-radius: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.mechanism__step--active .mechanism__step-detail {
  background: var(--bg-muted);
}

.mechanism__step-detail-icon {
  color: var(--accent);
  font-size: 0.5rem;
  flex-shrink: 0;
}

.mechanism__step-detail strong {
  color: var(--accent);
  font-weight: 600;
}

/* ----- Sağ: Sticky görsel alanı ----- */
.mechanism__visual {
  position: relative;
  /* Steps sütunuyla aynı yüksekliğe uzanmalı — sticky'nin çalışması için */
  align-self: stretch;
}

.mechanism__visual-sticky {
  position: sticky;
  top: calc(var(--navbar-height) + 2rem);
  /* Ekran yüksekliğinden navbar ve padding çıkarılır */
  height: calc(100vh - var(--navbar-height) - 4rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

/* Görsel yığını — 3 img üst üste */
.mechanism__img-stack {
  position: relative;
  width: 100%;
  max-width: 640px;
  aspect-ratio: 16 / 10;
  overflow: visible;
  background: transparent;
  /* Kenarları yumuşak gradient ile eriterek sayfaya karıştır */
  -webkit-mask-image: radial-gradient(
    ellipse 75% 70% at 50% 50%,
    #000 45%,
    transparent 100%
  );
  mask-image: radial-gradient(
    ellipse 75% 70% at 50% 50%,
    #000 45%,
    transparent 100%
  );
}

/* Her görsel üst üste konumlanır */
.mechanism__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  /* Varsayılan: gizli */
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Aktif görsel */
.mechanism__img--active {
  opacity: 1;
  transform: scale(1);
}

/* Faz gösterge noktaları */
.mechanism__phase-indicator {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mechanism__phase-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--accent-light);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.3s ease, border-color 0.3s ease,
              transform 0.3s ease, box-shadow 0.3s ease;
}

.mechanism__phase-dot:hover {
  border-color: var(--accent);
  transform: scale(1.2);
}

.mechanism__phase-dot--active {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
  transform: scale(1.15);
}


/* =============================================================
   ANNOTATION (Görsel Üzeri Etiketler)
   ============================================================= */

/* Her faz için bir annotation katmanı */
.annotation {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

/* Tek pin (nokta + çizgi + etiket grubu) */
.annotation__pin {
  position: absolute;
  transform: translate(-50%, -50%);
}

/* Pin öğeleri varsayılan: gizli */
.annotation__pin .annotation__dot {
  transform: scale(0);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.annotation__pin .annotation__line {
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.annotation__pin .annotation__line--up {
  transform: scaleY(0);
}

.annotation__pin .annotation__label {
  opacity: 0;
  transform: translateY(-50%) translateX(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.annotation__pin .annotation__label--up {
  transform: translateX(-50%) translateY(8px);
}

.annotation__pin .annotation__label--left {
  transform: translateY(-50%) translateX(-8px);
}

/* ===== Aktif faz: staggered animasyon ===== */

/* Pin 1: 0.5s sonra başla */
.annotation--visible .annotation__pin--1 .annotation__dot {
  transform: scale(1);
  transition-delay: 0.5s;
}
.annotation--visible .annotation__pin--1 .annotation__line {
  transform: scaleX(1);
  transition-delay: 0.7s;
}
.annotation--visible .annotation__pin--1 .annotation__line--up {
  transform: scaleY(1);
  transition-delay: 0.7s;
}
.annotation--visible .annotation__pin--1 .annotation__label {
  opacity: 1;
  transition-delay: 0.9s;
}
.annotation--visible .annotation__pin--1 .annotation__label--right {
  transform: translateY(-50%) translateX(0);
}
.annotation--visible .annotation__pin--1 .annotation__label--left {
  transform: translateY(-50%) translateX(0);
}
.annotation--visible .annotation__pin--1 .annotation__label--up {
  transform: translateX(-50%) translateY(0);
}

/* Pin 2: 0.9s sonra başla */
.annotation--visible .annotation__pin--2 .annotation__dot {
  transform: scale(1);
  transition-delay: 0.9s;
}
.annotation--visible .annotation__pin--2 .annotation__line {
  transform: scaleX(1);
  transition-delay: 1.1s;
}
.annotation--visible .annotation__pin--2 .annotation__line--up {
  transform: scaleY(1);
  transition-delay: 1.1s;
}
.annotation--visible .annotation__pin--2 .annotation__label {
  opacity: 1;
  transition-delay: 1.3s;
}
.annotation--visible .annotation__pin--2 .annotation__label--right {
  transform: translateY(-50%) translateX(0);
}
.annotation--visible .annotation__pin--2 .annotation__label--left {
  transform: translateY(-50%) translateX(0);
}
.annotation--visible .annotation__pin--2 .annotation__label--up {
  transform: translateX(-50%) translateY(0);
}

/* Pin 3: 1.3s sonra başla */
.annotation--visible .annotation__pin--3 .annotation__dot {
  transform: scale(1);
  transition-delay: 1.3s;
}
.annotation--visible .annotation__pin--3 .annotation__line {
  transform: scaleX(1);
  transition-delay: 1.5s;
}
.annotation--visible .annotation__pin--3 .annotation__line--up {
  transform: scaleY(1);
  transition-delay: 1.5s;
}
.annotation--visible .annotation__pin--3 .annotation__label {
  opacity: 1;
  transition-delay: 1.7s;
}
.annotation--visible .annotation__pin--3 .annotation__label--right {
  transform: translateY(-50%) translateX(0);
}
.annotation--visible .annotation__pin--3 .annotation__label--left {
  transform: translateY(-50%) translateX(0);
}
.annotation--visible .annotation__pin--3 .annotation__label--up {
  transform: translateX(-50%) translateY(0);
}

/* Nokta — görseldeki önemli yer */
.annotation__dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 0 0 3px var(--accent-glow), 0 2px 8px rgba(0,0,0,0.2);
  z-index: 2;
}

/* Çizgi — noktadan etikete giden bağlantı */
.annotation__line {
  position: absolute;
  background: rgba(255, 255, 255, 0.7);
  z-index: 1;
}

/* Sağa giden çizgi */
.annotation__line--right {
  top: 50%;
  left: 50%;
  width: 35px;
  height: 1.5px;
  margin-top: -0.75px;
  transform-origin: left center;
}

/* Sola giden çizgi */
.annotation__line--left {
  top: 50%;
  right: 50%;
  width: 35px;
  height: 1.5px;
  margin-top: -0.75px;
  transform-origin: right center;
}

/* Yukarı giden çizgi */
.annotation__line--up {
  bottom: 50%;
  left: 50%;
  width: 1.5px;
  height: 30px;
  margin-left: -0.75px;
  transform-origin: bottom center;
}

/* Etiket — bilgi yazısı */
.annotation__label {
  position: absolute;
  max-width: 140px;
  font-size: 0.65rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  border: 1px solid rgba(14, 165, 233, 0.18);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 3;
  text-align: center;
}

.annotation__label small {
  display: block;
  font-weight: 400;
  font-size: 0.55rem;
  color: var(--accent);
  margin-top: 1px;
  white-space: nowrap;
}

/* Sağa konumlanmış etiket */
.annotation__label--right {
  left: calc(50% + 38px);
  top: 50%;
  transform: translateY(-50%);
  text-align: left;
}

/* Sola konumlanmış etiket */
.annotation__label--left {
  right: calc(50% + 38px);
  top: 50%;
  transform: translateY(-50%);
  text-align: right;
}

/* Yukarı konumlanmış etiket */
.annotation__label--up {
  bottom: calc(50% + 33px);
  left: 50%;
  transform: translateX(-50%);
}


/* =============================================================
   ANİMASYONLAR
   ============================================================= */

/* İçeriklerin aşağıdan yukarı fade gelmesi */
@keyframes heroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hücre nefes alma — ince scale pulsasyonu */
@keyframes cellBreathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.015); }
}

/* Biyolüminesans — dönen conic gradient */
@keyframes cellGlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Işık taraması — soldan sağa parlak şerit */
@keyframes lightSweep {
  0%, 100% { left: -100%; opacity: 0; }
  10%      { opacity: 1; }
  50%      { left: 140%; opacity: 1; }
  60%      { opacity: 0; }
}

/* Yüzen parçacık 1 */
@keyframes floatParticle1 {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.4; }
  25%      { transform: translate(6px, -10px) scale(1.2); opacity: 0.6; }
  50%      { transform: translate(-4px, -18px) scale(0.9); opacity: 0.3; }
  75%      { transform: translate(8px, -6px) scale(1.1); opacity: 0.55; }
}

/* Yüzen parçacık 2 */
@keyframes floatParticle2 {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.35; }
  30%      { transform: translate(-8px, 12px) scale(1.15); opacity: 0.55; }
  60%      { transform: translate(6px, 6px) scale(0.85); opacity: 0.3; }
  80%      { transform: translate(-3px, -8px) scale(1.05); opacity: 0.5; }
}

/* Dış glow nabzı */
@keyframes cellOuterGlow {
  0%, 100% { box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.06), 0 12px 48px rgba(14, 165, 233, 0.1), 0 4px 16px rgba(0, 0, 0, 0.05); }
  50%      { box-shadow: 0 0 0 1px rgba(14, 165, 233, 0.1), 0 12px 48px rgba(14, 165, 233, 0.18), 0 4px 24px rgba(14, 165, 233, 0.08); }
}

/* Hotspot nabız efekti */
@keyframes hotspotPing {
  0%   { transform: scale(1); opacity: 0.7; }
  70%  { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}

/* Scroll göstergesi tekerlek animasyonu */
@keyframes scrollWheel {
  0%   { opacity: 1; transform: translateY(0); }
  50%  { opacity: 0.4; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}


/* =============================================================
   RESPONSIVE
   ============================================================= */

/* --- Tablet ve altı --- */
@media (max-width: 968px) {
  .hero {
    justify-content: center;
  }

  .hero__content {
    margin-right: 0;
    text-align: center;
    max-width: 620px;
  }

  /* Overlay'i merkezden dışa yay */
  .hero__overlay {
    background:
      radial-gradient(
        ellipse at center,
        rgba(248, 249, 250, 0.92) 0%,
        rgba(248, 249, 250, 0.7) 50%,
        rgba(248, 249, 250, 0.3) 100%
      );
  }

  .hero__cta {
    margin: 0 auto;
  }

  /* WhatsNK: Dikey layout */
  .whatsnk__explorer {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  /* Mechanism: Dikey layout */
  .mechanism__split {
    grid-template-columns: 1fr;
  }

  .mechanism__visual-sticky {
    position: relative;
    top: auto;
    height: auto;
    aspect-ratio: 16 / 10;
    margin-bottom: 2rem;
  }

  .mechanism__steps {
    padding: 0;
    order: 2;
  }

  .mechanism__visual {
    order: 1;
  }

  .whatsnk__cell {
    max-width: 400px;
  }

  .whatsnk__info {
    min-height: 340px;
  }
}

/* --- Mobil --- */
@media (max-width: 640px) {

  :root {
    --navbar-height: 60px;
  }

  /* Hamburger göster */
  .navbar__hamburger {
    display: flex;
  }

  /* Mobil menü — hamburger ile açılır */
  .navbar__nav {
    position: fixed;
    top: var(--navbar-height);
    right: 0;
    width: 100%;
    max-width: 300px;
    height: calc(100vh - var(--navbar-height));
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.06);
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
  }

  .navbar__nav--open {
    transform: translateX(0);
  }

  .navbar__link {
    display: block;
    width: 100%;
    padding: 0.9rem 1.5rem;
    font-size: 1rem;
  }

  .navbar__link::after {
    display: none;
  }

  /* Therapy pills mobil */
  .navbar__therapies {
    flex-direction: column;
    gap: 0.25rem;
    width: 100%;
  }
  .navbar__therapy-link {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.85rem;
    border-radius: 0;
    border: none;
    border-left: 3px solid transparent;
    background: none;
  }
  .navbar__therapy-link--hub {
    border-left-color: #64748b;
    background: none;
  }
  .navbar__therapy-link--nk.navbar__therapy-link--active {
    border-left-color: var(--accent, #0ea5e9);
    background: rgba(14,165,233,0.06);
  }
  .navbar__therapy-link--cik {
    border-left-color: transparent;
  }
  .navbar__therapy-link--dc {
    border-left-color: transparent;
  }

  .hero__title {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }

  .hero__subtitle {
    font-size: 0.95rem;
  }
}


/* =========================================================
   4. BÖLÜM — İMMÜNOTERAPİ YAKLAŞIMLARI
   ========================================================= */

.approaches {
  position: relative;
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  background: var(--bg-secondary);
  overflow: hidden;
}

/* ----- Başlık ----- */
.approaches__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}

.approaches__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.approaches__title {
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.approaches__title--accent {
  display: block;
  color: var(--accent);
}

.approaches__subtitle {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}


/* ----- Orbital Hub Container ----- */
.approaches__orbit {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1rem 0;
}

/* ----- Merkez Diyagram — approaches.jpg ----- */
.approaches__diagram {
  position: relative;
  max-width: 580px;
  margin: 0 auto 2rem;
  border-radius: 20px;
  overflow: hidden;
  cursor: default;
  transition: max-width 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.approaches__diagram-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  /* Kenarları sayfaya eritme — gradient mask */
  mask-image:
    radial-gradient(ellipse 85% 85% at 50% 50%, black 55%, transparent 80%);
  -webkit-mask-image:
    radial-gradient(ellipse 85% 85% at 50% 50%, black 55%, transparent 80%);
  /* Zoom geçişi */
  transition:
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform-origin 0.5s ease;
  transform: scale(1);
  cursor: zoom-out;
}

/* Zoom aktifken mask'ı kaldır, tam görüntü */
.approaches__diagram--zoomed .approaches__diagram-img {
  mask-image: none;
  -webkit-mask-image: none;
  border-radius: 16px;
  box-shadow: 0 8px 40px rgba(14, 165, 233, 0.15);
}

/* Zoom aktifken nabız halkasını gizle */
.approaches__diagram--zoomed .approaches__diagram-pulse {
  opacity: 0;
}

/* Zoom aktifken diyagram büyüsün */
.approaches__diagram--zoomed {
  max-width: 720px;
}

/* Diyagram üstü ince nabız halkası */
.approaches__diagram-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 42%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px solid rgba(14, 165, 233, 0.2);
  pointer-events: none;
  animation: diagramPulse 4s ease-in-out infinite;
}

@keyframes diagramPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
  50%      { transform: translate(-50%, -50%) scale(1.06); opacity: 0.6; }
}

/* ----- 3x2 Kart Grid ----- */
.approaches__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 2.5rem;
}

/* ----- Glassmorphism Kart ----- */
.approaches__card {
  position: relative;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 16px;
  padding: 1.5rem 1.4rem 1.3rem;
  overflow: hidden;
  cursor: default;
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s ease,
    border-color 0.4s ease;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.04),
    0 1px 4px rgba(0, 0, 0, 0.02);
  /* Scroll reveal */
  opacity: 0;
  transform: translateY(30px);
}

.approaches__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.approaches__card:hover {
  transform: translateY(-8px);
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow:
    0 12px 40px rgba(14, 165, 233, 0.12),
    0 4px 12px rgba(0, 0, 0, 0.04);
}

.approaches__card:hover::before {
  opacity: 1;
}

/* Aktif kart — zoom seçiliyken */
.approaches__card--active {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow:
    0 8px 32px rgba(14, 165, 233, 0.18),
    0 0 0 2px rgba(14, 165, 233, 0.12);
}

.approaches__card--active::before {
  opacity: 1;
}

.approaches__card--visible {
  opacity: 1;
  transform: translateY(0);
}

.approaches__card-img {
  margin: -1.5rem -1.4rem 1.2rem;
  padding: 0;
  border-radius: 14px 14px 0 0;
  background: linear-gradient(135deg, #f0f9ff 0%, #e8f4f8 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
}

.approaches__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: multiply;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.approaches__card:hover .approaches__card-img img {
  transform: scale(1.08);
}

.approaches__card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.9rem;
}

.approaches__card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 0.7rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--accent), #0284c7);
  border-radius: 10px;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.approaches__card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.approaches__card-icon svg {
  width: 22px;
  height: 22px;
}

.approaches__card:hover .approaches__card-icon {
  opacity: 1;
}

.approaches__card-title {
  font-size: 1rem;
  font-weight: 650;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.approaches__card-text {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 0.9rem;
}

.approaches__card-tag {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: 20px;
  text-transform: uppercase;
  transition: background 0.3s ease;
}

.approaches__card:hover .approaches__card-tag {
  background: rgba(14, 165, 233, 0.06);
}

/* ----- Responsive: Tablet ----- */
@media (max-width: 900px) {
  .approaches__grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 2rem;
  }
  .approaches__hub,
  .approaches__lines {
    display: none;
  }
}

/* ----- Responsive: Mobil ----- */
@media (max-width: 600px) {
  .approaches__grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .approaches__card {
    padding: 1.2rem 1.1rem 1rem;
  }
}


/* =============================================================
   KLİNİK VERİLER — Koyu arka plan, animasyonlu istatistikler
   ============================================================= */

.clinical {
  position: relative;
  padding: clamp(5rem, 10vw, 8rem) clamp(1.5rem, 5vw, 4rem);
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.88) 50%, rgba(15, 23, 42, 0.92) 100%),
    url('img/nkcell.png') center/cover no-repeat;
  overflow: hidden;
}

/* Subtle grid pattern overlay */
.clinical::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14, 165, 233, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Glow orb decoration */
.clinical::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.clinical__inner {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.clinical__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent-light);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.clinical__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 1rem;
  line-height: 1.15;
}

.clinical__subtitle {
  font-size: clamp(0.85rem, 1.4vw, 1rem);
  color: #94a3b8;
  max-width: 560px;
  margin: 0 auto 3.5rem;
  line-height: 1.7;
}

.clinical__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.clinical__stat {
  position: relative;
  padding: 2rem 1.2rem 1.8rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: center;
  /* Scroll reveal */
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.clinical__stat--visible {
  opacity: 1;
  transform: translateY(0);
}

.clinical__stat::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.clinical__stat:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(14, 165, 233, 0.15);
}

.clinical__stat-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(14, 165, 233, 0.1);
  color: var(--accent-light);
}

.clinical__stat-icon svg {
  width: 20px;
  height: 20px;
}

.clinical__stat-slot {
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
  height: 3.4rem;
  margin-bottom: 0.6rem;
  overflow: hidden;
}

.clinical__stat-digit-col {
  width: 1.7rem;
  height: 3.4rem;
  overflow: hidden;
}

.clinical__stat-digit-strip {
  transition: transform 1.6s cubic-bezier(0.23, 1, 0.32, 1);
  will-change: transform;
}

.clinical__stat-digit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 3.4rem;
  font-size: 2.8rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
}

.clinical__stat-prefix,
.clinical__stat-suffix {
  height: 3.4rem;
  display: flex;
  align-items: center;
  font-size: 2.8rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  white-space: nowrap;
}

.clinical__stat-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 0.3rem;
}

.clinical__stat-desc {
  display: block;
  font-size: 0.7rem;
  color: #64748b;
  line-height: 1.5;
  word-break: break-word;
  hyphens: auto;
}

/* Clickable hint */
.clinical__stat {
  cursor: pointer;
}

/* Detail panel (hidden by default) */
.clinical__stat-detail {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height 0.6s cubic-bezier(0.23, 1, 0.32, 1),
              opacity 0.4s ease,
              margin-top 0.4s ease;
}

/* Açıldığında: yüksek limit + kart arka plan vurgusu */
.clinical__stat--expanded .clinical__stat-detail {
  max-height: 900px;       /* uzun metinler için yeterli */
  opacity: 1;
  margin-top: 1rem;
}

.clinical__stat-detail p {
  font-size: 0.85rem;      /* 0.78 → 0.85 daha okunaklı */
  color: #cbd5e1;
  line-height: 1.75;
  margin: 0 0 0.7rem;
  text-align: left;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 0.9rem;
}

.clinical__stat-detail p + p {
  border-top: none;        /* sadece ilk paragrafta üst çizgi */
  padding-top: 0;
}

.clinical__stat-detail strong {
  color: #ffffff;
  font-weight: 700;
}

/* "Sonuç" özet satırı — son paragraf vurgulanır */
.clinical__stat-detail .clinical__stat-takeaway {
  margin-top: 0.85rem;
  padding: 0.7rem 0.9rem;
  background: rgba(14, 165, 233, 0.08);
  border-left: 3px solid var(--accent, #0ea5e9);
  border-radius: 4px;
  font-size: 0.84rem;
  color: #f1f5f9;
  line-height: 1.6;
  border-top: none;
  padding-top: 0.7rem;
}
.clinical__stat-detail .clinical__stat-takeaway::before {
  content: '✦  ';
  color: var(--accent-light);
  font-weight: 700;
}

.clinical__stat-detail cite {
  display: block;
  font-size: 0.65rem;
  font-style: normal;
  color: var(--accent-light);
  opacity: 0.7;
  text-align: left;
  line-height: 1.4;
}

.clinical__stat-detail cite em {
  font-style: italic;
}

.clinical__stat-detail cite a {
  color: var(--accent-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 165, 233, 0.25);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.clinical__stat-detail cite a:hover {
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.5);
}

.clinical__hint {
  text-align: center;
  font-size: 0.72rem;
  color: #475569;
  margin-top: 1.5rem;
  letter-spacing: 0.03em;
}

/* Expanded card glow */
.clinical__stat--expanded {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(14, 165, 233, 0.2);
}

/* Glow pulse on the number */
@keyframes statGlow {
  0%, 100% { text-shadow: 0 0 20px rgba(14, 165, 233, 0.15); }
  50% { text-shadow: 0 0 30px rgba(14, 165, 233, 0.3); }
}

.clinical__stat--visible .clinical__stat-digit {
  animation: statGlow 3s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 900px) {
  .clinical__stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 500px) {
  .clinical__stats {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
}

/* =============================================================
   GÜVENLİK PROFİLİ — NK vs CAR-T
   ============================================================= */

.safety {
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  background: linear-gradient(180deg, var(--bg-primary) 0%, #eef6fb 50%, var(--bg-primary) 100%);
}

.safety__inner {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}

.safety__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.safety__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.safety__title span {
  color: var(--accent);
}

.safety__subtitle {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 3rem;
}

/* Güvenlik Kartları Grid */
.safety__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  text-align: left;
}

.safety__card {
  background: #ffffff;
  border: 1px solid rgba(14, 165, 233, 0.1);
  border-radius: 16px;
  padding: 1.8rem 1.5rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.4s ease;
}

.safety__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(14, 165, 233, 0.08);
}

.safety__card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(14, 165, 233, 0.08);
  color: var(--accent);
  margin-bottom: 1rem;
}

.safety__card-icon svg {
  width: 22px;
  height: 22px;
}

.safety__card h3 {
  font-size: 0.95rem;
  font-weight: 650;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.safety__card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Referans */
.safety__ref {
  margin-top: 2rem;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.safety__ref a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 165, 233, 0.2);
  transition: border-color 0.2s ease;
}

.safety__ref a:hover {
  border-color: var(--accent);
}

/* Responsive */
@media (max-width: 900px) {
  .safety__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .safety__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}


/* =============================================================
   6. BÖLÜM — NEDEN GENKORD?
   ============================================================= */

.whygenkord {
  position: relative;
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  background: linear-gradient(180deg, var(--bg-primary) 0%, #e8f4f8 100%);
  overflow: hidden;
}

.whygenkord::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('img/lab1.png') center/cover no-repeat;
  opacity: 0.22;
  pointer-events: none;
}

.whygenkord__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}

.whygenkord__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}

.whygenkord__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.whygenkord__title--accent {
  color: var(--accent);
}

.whygenkord__subtitle {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ----- Animated Sayaçlar ----- */
.whygenkord__counters {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.whygenkord__counter {
  padding: 1.5rem 1rem;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
  /* Scroll reveal */
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.whygenkord__counter--visible {
  opacity: 1;
  transform: translateY(0);
}

.whygenkord__counter-slot {
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
  height: 3rem;
  margin: 0 auto 0.4rem;
  overflow: hidden;
}

.whygenkord__digit-col {
  width: 1.5rem;
  height: 3rem;
  overflow: hidden;
}

.whygenkord__digit-strip {
  transition: transform 1.4s cubic-bezier(0.23, 1, 0.32, 1);
  will-change: transform;
}

.whygenkord__digit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 3rem;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.whygenkord__suffix {
  height: 3rem;
  display: flex;
  align-items: center;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  white-space: nowrap;
}

.whygenkord__counter-value {
  display: none;
}

.whygenkord__counter-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ----- cGMP Rozet ----- */
.whygenkord__badge {
  display: flex;
  justify-content: center;
  margin: 0 auto 3rem;
  max-width: 400px;
}

.whygenkord__badge-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 4px 16px rgba(14, 165, 233, 0.1));
}

.whygenkord__badge-img {
  max-width: 320px;
  width: 100%;
  height: auto;
}

/* ----- Avantaj Kartları ----- */
.whygenkord__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.8rem;
  max-width: 1100px;
  margin: 0 auto;
}

.whygenkord__card {
  background: #ffffff;
  border-radius: 16px;
  padding: 1.8rem 1.5rem 1.5rem;
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.4s ease;
  /* Scroll reveal */
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease,
    box-shadow 0.4s ease;
}

.whygenkord__card--visible {
  opacity: 1;
  transform: translateY(0);
}

.whygenkord__card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 12px 36px rgba(14, 165, 233, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.04);
}

.whygenkord__card-icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(14, 165, 233, 0.05));
  border-radius: 12px;
  margin-bottom: 1rem;
}

.whygenkord__card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.whygenkord__card-icon svg {
  width: 24px;
  height: 24px;
}

.whygenkord__card-title {
  font-size: 0.95rem;
  font-weight: 650;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.whygenkord__card-text {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 900px) {
  .whygenkord__counters {
    grid-template-columns: repeat(2, 1fr);
  }
  .whygenkord__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .whygenkord__counters {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .whygenkord__grid {
    grid-template-columns: 1fr;
  }
}


/* =============================================================
   SSS — Accordion
   ============================================================= */

.faq {
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  background: var(--bg-subtle);
}

.faq__inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.faq__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.faq__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2.5rem;
}

.faq__list {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.faq__item {
  background: var(--bg-subtle);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 12px;
  overflow: hidden;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.faq__item[open] {
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.06);
  border-color: rgba(14, 165, 233, 0.12);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  transition: color 0.2s ease;
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::marker {
  display: none;
  content: '';
}

.faq__question:hover {
  color: var(--accent);
}

.faq__chevron {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.3s ease, color 0.3s ease;
}

.faq__item[open] .faq__chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq__answer {
  padding: 0 1.4rem 1.3rem;
}

.faq__answer p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

.faq__answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* =============================================================
   7. BÖLÜM — CTA / İLETİŞİM
   ============================================================= */

.cta {
  padding: clamp(4rem, 8vw, 6rem) clamp(1.5rem, 5vw, 4rem);
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 50%, #0ea5e9 100%);
  text-align: center;
}

.cta__inner {
  max-width: 650px;
  margin: 0 auto;
}

.cta__title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  color: white;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.cta__text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
}

.cta__buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.cta__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 10px;
  text-decoration: none;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

.cta__btn--primary {
  background: white;
  color: #0369a1;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.cta__btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.cta__btn--secondary {
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.cta__btn--secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-3px);
}


/* =============================================================
   FOOTER
   ============================================================= */

.footer {
  padding: 2.5rem clamp(1.5rem, 5vw, 4rem) 1.5rem;
  background: #0c1e2e;
  color: rgba(255, 255, 255, 0.6);
}

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer__brand {
  text-align: center;
}

.footer__logo {
  height: 24px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: 0.4rem;
}

.footer__brand-logo {
  display: inline-block;
  height: clamp(80px, 12vw, 140px);
  filter: brightness(0) invert(1);
}

.footer__tagline {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.footer__nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2rem);
  flex-wrap: wrap;
  justify-content: center;
}

.footer__link {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: white;
}

.footer__social {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.45);
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

.footer__social-link:hover {
  color: #ffffff;
  border-color: rgba(14, 165, 233, 0.4);
  background: rgba(14, 165, 233, 0.1);
}

.footer__bottom {
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
  text-align: center;
}

.footer__copy {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.3);
}

.footer__contact {
  margin-top: 1.25rem;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.7;
}
.footer__contact a {
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: color 0.3s ease;
}
.footer__contact a:hover {
  color: rgba(255, 255, 255, 0.8);
}

.footer__dev {
  margin-top: 0.5rem;
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.15);
}
.footer__dev a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}
.footer__dev a:hover {
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 600px) {
  .cta__buttons {
    flex-direction: column;
    align-items: center;
  }
  .footer__nav {
    gap: 0.8rem;
  }
}


/* =============================================================
   DC SAYFASI — Signature Bileşenler
   Antijen Sunum Tiyatrosu (Priming Theatre) + DC-CIK sinerji +
   Typewriter stilleri. Renk olarak global mavi accent (NK/CIK ile
   bütünlük) kullanılır; DC kimliği yalnızca navbar pill'inde
   yeşil dot olarak görünür (üstte tanımlı).
   ============================================================= */


/* ---------- Typewriter Efekti (Sinerji bölümünde kullanılır) ---------- */
.typewriter {
  display: inline-block;
  border-right: 2px solid var(--accent);
  white-space: nowrap;
  overflow: hidden;
  width: 0;
  animation: none;
}
.typewriter--ready {
  width: 0;
  border-right-color: var(--accent);
}
.typewriter--typing {
  animation: typewriterExpand 1.2s steps(20, end) forwards,
             typewriterBlink 0.6s step-end 4;
}
.typewriter--done {
  width: auto;
  border-right: none;
  overflow: visible;
}
@keyframes typewriterExpand {
  from { width: 0; }
  to   { width: 100%; }
}
@keyframes typewriterBlink {
  50% { border-color: transparent; }
}


/* ---------- DC-CIK Sinerji Bölümü (Global, hem CIK hem DC kullanır) ---------- */
.synergy {
  padding: clamp(4rem, 8vw, 8rem) clamp(1.25rem, 4vw, 3rem);
  background: var(--bg-primary);
}
.synergy__inner {
  max-width: 1080px;
  margin: 0 auto;
}
.synergy__tag {
  display: block;
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.synergy__title {
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}
.synergy__title span { color: var(--accent); }
.synergy__subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}
.synergy__flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}
.synergy__card {
  background: #fff;
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 8px 32px rgba(0,0,0,0.06);
  border: 1px solid var(--bg-muted);
}
.synergy__card-icon {
  width: 56px; height: 56px;
  margin: 0 auto 1rem;
  background: var(--accent-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.synergy__card-icon svg {
  width: 28px; height: 28px;
  color: var(--accent);
}
.synergy__card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.synergy__card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.synergy__arrow {
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 300;
}
.synergy__result {
  background: linear-gradient(135deg, var(--accent-glow), var(--accent-glow));
  border: 1px solid var(--accent-glow);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
}
.synergy__result h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--accent-dark);
}
.synergy__result-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.synergy__result-stat {
  text-align: center;
}
.synergy__result-stat strong {
  display: block;
  font-size: 1.5rem;
  color: var(--accent);
}
.synergy__result-stat span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.synergy__result-refs {
  margin-top: 1.25rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.synergy__result-refs a {
  color: var(--accent);
  text-decoration: none;
}
.synergy__result-refs a:hover {
  text-decoration: underline;
}
@media (max-width: 768px) {
  .synergy__flow {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .synergy__arrow {
    transform: rotate(90deg);
    text-align: center;
  }
}


/* ============================================================
   DC SIGNATURE BÖLÜMÜ — "ANTİJEN SUNUM TİYATROSU"
   4 sahneli olgunlaşma yolculuğu + 3-Sinyal modeli + moleküller
   ============================================================ */

.priming {
  position: relative;
  padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 4vw, 3rem);
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg-primary) 100%);
  /* overflow: hidden kaldırıldı — sticky child element'leri için engelleyici */
}
.priming__inner {
  max-width: 1200px;
  margin: 0 auto;
}

/* ----- Header ----- */
.priming__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}
.priming__label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.priming__title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}
.priming__title span { color: var(--accent); }
.priming__desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

/* ----- İlerleme Çubuğu (Progress Bar) ----- */
.priming__progress {
  position: sticky;
  top: var(--navbar-height);
  z-index: 5;
  margin: 0 auto 3rem;
  max-width: 720px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1rem 1.25rem;
  border-radius: 14px;
  border: 1px solid var(--bg-muted);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}
.priming__progress-track {
  height: 3px;
  background: var(--bg-muted);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}
.priming__progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(to right, var(--accent-light), var(--accent));
  border-radius: 999px;
  transition: width 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
.priming__progress-steps {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
}
.priming__progress-step {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  transition: color 0.3s ease;
  text-align: center;
  flex: 1;
}
.priming__progress-step--active {
  color: var(--accent);
}
.priming__progress-step--passed {
  color: var(--text-secondary);
}

/* ----- Scrollytelling Konteyneri ----- */
.priming__scroller {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  position: relative;
  /* align-items default 'stretch' kalır → sol stage sağdaki steps yüksekliği kadar uzar */
}

/* Sol — Sticky Sahne (parent stretch ile sağ steps'ler kadar uzun, sticky bu boyunca yapışır) */
.priming__stage {
  position: relative;
}
.priming__stage-sticky {
  position: sticky;
  top: calc(var(--navbar-height) + 5.5rem);
  height: 62vh;
  min-height: 460px;
  max-height: 620px;
  background: linear-gradient(135deg, #fdf8f3 0%, #f3ede5 100%);
  border-radius: 24px;
  border: 1px solid var(--bg-muted);
  overflow: hidden;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.06);
}

/* Mural Frame — uzun dikey görselin görünür penceresi */
.priming__mural-frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.priming__mural {
  /* Doğal aspect ratio korunur (1.79 h/w). Width frame'e tam sığar, height taşar → pan ile gösterilir */
  width: 100%;
  height: auto;
  max-width: none;
  display: block;
  transform: translateY(0%);
  transition: transform 1.2s cubic-bezier(0.23, 1, 0.32, 1);
  will-change: transform;
}

/* Sahneye göre dikey pan — mural'ın doğal yüksekliği frame'in ~1.7 katı, fazlası 4 sahneye dağıtılır */
.priming__stage--step-1 .priming__mural { transform: translateY(0%); }
.priming__stage--step-2 .priming__mural { transform: translateY(-17%); }
.priming__stage--step-3 .priming__mural { transform: translateY(-34%); }
.priming__stage--step-4 .priming__mural { transform: translateY(-51%); }

/* Sahne caption (mural alt kısmında, sticky stage içinde sabit) */
.priming__caption {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 1.25rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--text-primary);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
  z-index: 2;
}
.priming__caption-tag {
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent);
  flex-shrink: 0;
}
.priming__caption-text {
  font-weight: 500;
  line-height: 1.4;
}

/* Sağ — Akan Anlatı Adımları */
.priming__steps {
  display: flex;
  flex-direction: column;
}
.priming__step {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 0;
  opacity: 0.35;
  transition: opacity 0.6s ease;
}
.priming__step--active {
  opacity: 1;
}
.priming__step:first-child {
  padding-top: 0;
  min-height: 70vh;
}
.priming__step:last-child {
  padding-bottom: 4rem;
}
.priming__step-tag {
  display: inline-block;
  align-self: flex-start;
  background: var(--accent-glow);
  color: var(--accent-dark);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.priming__step-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.priming__step-lead {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--accent-dark);
  margin-bottom: 1rem;
  line-height: 1.5;
}
.priming__step-text {
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}
.priming__step-text strong { color: var(--text-primary); }
.priming__step-outcome {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--accent-glow), rgba(255, 255, 255, 0.4));
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
}

/* Moleküler aktör chip'leri */
.priming__molecules {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}
.priming__molecule {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 5px 11px;
  background: var(--bg-subtle);
  border: 1px solid var(--bg-muted);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', 'SF Mono', Menlo, Monaco, monospace;
}
.priming__molecule::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ----- Sağ taraf: 3-Sinyal Mini Diyagramı ----- */
.priming__signals {
  background: linear-gradient(135deg, var(--accent-glow), rgba(255,255,255,0.5));
  border-radius: 16px;
  padding: 1.5rem;
  border: 1px solid var(--accent-glow);
}
.priming__signals-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 1rem;
  text-align: center;
}
.priming__signal {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  background: #fff;
  border-radius: 10px;
  margin-bottom: 0.5rem;
  border: 1px solid var(--bg-muted);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}
.priming__signal:last-child { margin-bottom: 0; }
.priming__signal:hover {
  border-color: var(--accent-light);
  box-shadow: 0 2px 8px var(--accent-glow);
}
.priming__signal-num {
  width: 28px; height: 28px;
  flex-shrink: 0;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
}
.priming__signal-body { flex: 1; }
.priming__signal-name {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}
.priming__signal-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ----- Mobile ----- */
@media (max-width: 900px) {
  /* Tek sütun: sticky görsel her step'in üstünde inline gösterilir */
  .priming__scroller {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .priming__stage {
    display: none; /* mobilde sticky stage gizlenir */
  }
  .priming__step {
    min-height: auto;
    padding: 2rem 0;
    opacity: 1; /* mobilde fade-out yapma, hepsi okunsun */
  }
  .priming__step:first-child { padding-top: 1rem; }

  .priming__progress {
    top: calc(var(--navbar-height) + 0.5rem);
    padding: 0.75rem 1rem;
  }
  .priming__progress-step {
    font-size: 0.65rem;
  }
}
@media (max-width: 480px) {
  .priming__step-title { font-size: 1.3rem; }
  .priming__progress-steps { display: none; }
}


/* ---------- DC sayfasına özel: whygenkord arka plan ----------
   Yalnızca DC sayfasında (body.theme-dc) Gemini ile üretilen
   cleanroom GMP görseli kullanılır. NK ve CIK lab1.png varsayılanını
   kullanmaya devam eder. */
body.theme-dc .whygenkord::before {
  background-image: url('img/dc-gmp-background.png');
}