/* ============================================================
   Esila Temizlik — Ana Stil Dosyası
   Dark luxury + clean minimalism + editorial design
   ============================================================ */

/* ─── 1. DESIGN TOKENS / CSS VARIABLES ─────────────────────── */
:root {
  /* Renkler */
  --color-navy:         #0a0f1e;       /* Koyu lacivert / gece mavisi */
  --color-navy-mid:     #111827;       /* Orta lacivert */
  --color-navy-light:   #1a2540;       /* Açık lacivert */
  --color-ivory:        #f5f2eb;       /* Fildişi */
  --color-offwhite:     #fafaf8;       /* Kırık beyaz */
  --color-gray-light:   #f0eeea;       /* Çok açık gri */
  --color-gray-mid:     #9ca3af;       /* Orta gri */
  --color-gray-dark:    #374151;       /* Koyu gri */
  --color-aqua:         #2dd4bf;       /* Turkuaz vurgu */
  --color-aqua-dim:     #14b8a6;       /* Koyu turkuaz */
  --color-aqua-glow:    rgba(45, 212, 191, 0.15);
  --color-white:        #ffffff;
  --color-text-dark:    #0a0f1e;
  --color-text-light:   #f5f2eb;
  --color-text-muted:   rgba(245, 242, 235, 0.6);

  /* Tipografi */
  --font-heading:       'Playfair Display', 'Georgia', serif;
  --font-body:          'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:          'JetBrains Mono', 'Courier New', monospace;

  /* Boyutlar */
  --max-width:          1400px;
  --section-padding:    clamp(80px, 10vw, 140px);
  --gap-xs:             8px;
  --gap-sm:             16px;
  --gap-md:             32px;
  --gap-lg:             64px;
  --gap-xl:             120px;

  /* Geçişler */
  --ease-smooth:        cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-expo:      cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quart:  cubic-bezier(0.77, 0, 0.175, 1);
  --duration-fast:      0.2s;
  --duration-base:      0.4s;
  --duration-slow:      0.8s;
  --duration-xslow:     1.2s;

  /* Z-index katmanları */
  --z-base:      1;
  --z-overlay:   10;
  --z-navbar:    100;
  --z-cursor:    9999;
  --z-intro:     10000;
}

/* ─── 2. RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-navy);
  color: var(--color-text-light);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none; /* Özel cursor için */
}

/* Reduced-motion desteği */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Mobilde standart cursor */
@media (hover: none) {
  body { cursor: auto; }
}

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

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

ul, ol { list-style: none; }

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

/* ─── 3. CUSTOM SCROLLBAR ────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--color-navy); }
::-webkit-scrollbar-thumb { background: var(--color-aqua-dim); border-radius: 2px; }

/* ─── 4. SELECTION ───────────────────────────────────────────── */
::selection {
  background: var(--color-aqua);
  color: var(--color-navy);
}

/* ─── 5. FOCUS (ERİŞİLEBİLİRLİK) ────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-aqua);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ─── 6. TİPOGRAFİ ──────────────────────────────────────────── */
.heading-display {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.heading-xl {
  font-size: clamp(64px, 10vw, 160px);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.heading-lg {
  font-size: clamp(40px, 6vw, 88px);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.02em;
}

.heading-md {
  font-size: clamp(28px, 4vw, 52px);
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.heading-sm {
  font-size: clamp(20px, 2.5vw, 32px);
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
}

.text-body {
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.7;
  color: var(--color-text-muted);
}

.text-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-family: var(--font-body);
}

.text-number {
  font-family: var(--font-heading);
  font-size: clamp(60px, 8vw, 110px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-aqua);
}

/* ─── 7. LAYOUT YARDIMCIları ─────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section--dark  { background-color: var(--color-navy); color: var(--color-text-light); }
.section--light { background-color: var(--color-ivory); color: var(--color-text-dark); }
.section--white { background-color: var(--color-offwhite); color: var(--color-text-dark); }
.section--mid   { background-color: var(--color-navy-mid); color: var(--color-text-light); }

/* Üst başlık grubu */
.section-header {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  margin-bottom: clamp(48px, 6vw, 96px);
}

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-aqua);
}

.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--color-aqua);
}

/* ─── 8. BUTONLAR ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all var(--duration-base) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-101%);
  transition: transform var(--duration-base) var(--ease-out-expo);
}

.btn:hover::before { transform: translateX(0); }

/* Primary buton */
.btn--primary {
  background: var(--color-aqua);
  color: var(--color-navy);
  border: 2px solid var(--color-aqua);
}
.btn--primary::before { background: var(--color-navy); }
.btn--primary:hover { color: var(--color-aqua); border-color: var(--color-aqua); }
.btn--primary .btn-text { position: relative; z-index: 1; }
.btn--primary .btn-arrow { position: relative; z-index: 1; transition: transform var(--duration-fast) var(--ease-smooth); }
.btn--primary:hover .btn-arrow { transform: translate(3px, -3px); }

/* Ghost buton (light bg) */
.btn--ghost-light {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid rgba(245, 242, 235, 0.3);
}
.btn--ghost-light::before { background: var(--color-text-light); }
.btn--ghost-light:hover { color: var(--color-navy); }
.btn--ghost-light .btn-text,
.btn--ghost-light .btn-arrow { position: relative; z-index: 1; }
.btn--ghost-light:hover .btn-arrow { transform: translate(3px, -3px); }

/* Ghost buton (dark bg) */
.btn--ghost-dark {
  background: transparent;
  color: var(--color-navy);
  border: 1px solid rgba(10, 15, 30, 0.3);
}
.btn--ghost-dark::before { background: var(--color-navy); }
.btn--ghost-dark:hover { color: var(--color-text-light); }
.btn--ghost-dark .btn-text,
.btn--ghost-dark .btn-arrow { position: relative; z-index: 1; }

/* ─── 9. CUSTOM CURSOR ───────────────────────────────────────── */
.cursor-dot,
.cursor-ring {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  mix-blend-mode: difference;
  will-change: transform;
  transition: opacity var(--duration-fast) var(--ease-smooth);
}

.cursor-dot {
  width: 6px;
  height: 6px;
  background: var(--color-white);
  transform: translate(-50%, -50%);
}

.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  transform: translate(-50%, -50%);
  transition: width var(--duration-base) var(--ease-out-expo),
              height var(--duration-base) var(--ease-out-expo),
              background var(--duration-base) var(--ease-smooth),
              border-color var(--duration-base) var(--ease-smooth);
}

.cursor-ring.is-hovering {
  width: 64px;
  height: 64px;
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.9);
}

.cursor-label {
  position: fixed;
  pointer-events: none;
  z-index: var(--z-cursor);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-smooth);
  white-space: nowrap;
}

.cursor-label.is-visible { opacity: 1; }

/* Mobilde cursor gizle */
@media (hover: none) {
  .cursor-dot, .cursor-ring, .cursor-label { display: none; }
}

/* ─── 10. INTRO OVERLAY ──────────────────────────────────────── */
#intro-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-navy);
  z-index: var(--z-intro);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0;
}

.intro-text {
  font-family: var(--font-heading);
  font-size: clamp(48px, 8vw, 120px);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-white);
  opacity: 0;
  transform: translateY(20px);
}

.intro-line {
  width: 0;
  height: 1px;
  background: var(--color-aqua);
  margin-top: 24px;
}

/* Mobilde intro devre dışı */
@media (max-width: 768px) {
  #intro-overlay { display: none !important; }
}

/* ─── 11. NAVBAR ─────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  padding: 28px clamp(24px, 5vw, 80px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: padding var(--duration-base) var(--ease-smooth),
              background var(--duration-base) var(--ease-smooth),
              border-color var(--duration-base) var(--ease-smooth),
              box-shadow var(--duration-base) var(--ease-smooth);
  border-bottom: 1px solid transparent;
}

#navbar.scrolled {
  padding: 16px clamp(24px, 5vw, 80px);
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.3);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-white);
  text-transform: uppercase;
  transition: opacity var(--duration-fast);
}

.nav-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-logo:hover { opacity: 0.85; }

/* Nav linkleri */
.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245, 242, 235, 0.7);
  transition: color var(--duration-fast) var(--ease-smooth);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-aqua);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-white);
}

.nav-links a:hover::after { width: 100%; }

/* Nav CTA */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  background: var(--color-aqua);
  color: var(--color-navy);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background var(--duration-fast), transform var(--duration-fast);
}

.nav-cta:hover {
  background: var(--color-aqua-dim);
  transform: translateY(-1px);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--color-white);
  transition: all var(--duration-base) var(--ease-smooth);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobil menü */
.nav-mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-navy);
  z-index: calc(var(--z-navbar) - 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-smooth);
}

.nav-mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile-menu a {
  font-family: var(--font-heading);
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  color: var(--color-text-light);
  letter-spacing: -0.01em;
  transition: color var(--duration-fast);
}

.nav-mobile-menu a:hover { color: var(--color-aqua); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta-desktop { display: none; }
  .nav-hamburger { display: flex; }
}

/* ─── 12. HERO ───────────────────────────────────────────────── */
#hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  will-change: transform;
  transform: scale(1.08);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 15, 30, 0.3) 0%,
    rgba(10, 15, 30, 0.1) 40%,
    rgba(10, 15, 30, 0.75) 80%,
    rgba(10, 15, 30, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 clamp(24px, 5vw, 80px) clamp(60px, 8vh, 100px);
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-label {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-aqua);
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
}

.hero-label span { font-size: 11px; font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; }
.hero-label-line { width: 40px; height: 1px; background: var(--color-aqua); }

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(56px, 9vw, 140px);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 32px;
  overflow: hidden;
}

.hero-title .line { display: block; overflow: hidden; }
.hero-title .line span { display: block; transform: translateY(110%); }

.hero-tagline {
  font-size: clamp(15px, 1.5vw, 19px);
  color: rgba(245, 242, 235, 0.65);
  margin-bottom: 48px;
  max-width: 480px;
  opacity: 0;
  transform: translateY(20px);
  font-style: italic;
  font-family: var(--font-heading);
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
}

/* Scroll göstergesi */
.hero-scroll-indicator {
  position: absolute;
  bottom: clamp(24px, 4vh, 40px);
  right: clamp(24px, 5vw, 80px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  z-index: 2;
}

.hero-scroll-indicator span {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(245, 242, 235, 0.5);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-aqua), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ─── 13. TEMİZLİĞİ HİSSET (Storytelling) ───────────────────── */
#storytelling {
  background: var(--color-navy);
  padding: var(--section-padding) 0;
  overflow: hidden;
}

.storytelling-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
  text-align: center;
}

.storytelling-quote {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4.5vw, 68px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-white);
}

.storytelling-quote .word {
  display: inline-block;
  opacity: 0.15;
  transition: opacity var(--duration-slow) var(--ease-smooth),
              filter var(--duration-slow) var(--ease-smooth);
  filter: blur(4px);
  margin: 0 0.15em;
}

.storytelling-quote .word.active {
  opacity: 1;
  filter: blur(0);
}

.storytelling-divider {
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--color-aqua), transparent);
  margin: 60px auto;
}

.storytelling-sub {
  font-size: clamp(14px, 1.2vw, 17px);
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto;
}

/* ─── 14. HİZMETLER ─────────────────────────────────────────── */
#services {
  background: var(--color-navy-mid);
  overflow: hidden;
}

.services-header {
  padding: var(--section-padding) clamp(24px, 5vw, 80px) 0;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--gap-md);
  flex-wrap: wrap;
  margin-bottom: 80px;
}

/* Hizmet listesi */
.services-list {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px) var(--section-padding);
  position: relative;
}

.service-item {
  display: grid;
  grid-template-columns: 100px 1fr 1fr;
  align-items: center;
  gap: 40px;
  padding: 36px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  cursor: pointer;
  position: relative;
  transition: border-color var(--duration-fast);
}

.service-item:last-child { border-bottom: 1px solid rgba(255, 255, 255, 0.06); }

.service-item:hover { border-color: rgba(45, 212, 191, 0.25); }

.service-num {
  font-family: var(--font-heading);
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.08);
  line-height: 1;
  transition: color var(--duration-base) var(--ease-smooth),
              transform var(--duration-base) var(--ease-smooth);
}

.service-item:hover .service-num {
  color: var(--color-aqua);
  transform: scale(1.1);
}

.service-title {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 38px);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: -0.01em;
  transition: color var(--duration-fast);
}

.service-item:hover .service-title { color: var(--color-aqua); }

.service-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 400px;
}

/* Arka plan görsel overlay */
.service-bg-image {
  position: fixed;
  top: 0;
  right: 0;
  width: 45vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-smooth);
  overflow: hidden;
}

.service-bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform var(--duration-xslow) var(--ease-smooth);
}

.service-bg-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-navy-mid) 0%, rgba(17,24,39,0.4) 100%);
  z-index: 1;
}

.service-bg-image.active {
  opacity: 1;
}

.service-bg-image.active img {
  transform: scale(1);
}

/* Hizmet çizgisi animasyonu */
.service-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-aqua);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.service-item:hover .service-line { width: 100%; }

@media (max-width: 768px) {
  .service-item { grid-template-columns: 60px 1fr; }
  .service-desc { display: none; }
  .service-bg-image { display: none; }
}

/* ─── 15. BEFORE / AFTER ─────────────────────────────────────── */
#before-after {
  background: var(--color-navy);
  padding: var(--section-padding) 0;
}

.ba-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

.ba-header { margin-bottom: 64px; }

.ba-slider-wrap {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: 0;
  overflow: hidden;
  user-select: none;
  touch-action: none;
  aspect-ratio: 16/9;
  cursor: ew-resize;
  background: var(--color-navy); /* sağ taraf koyu kalır */
}

.ba-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Tek fotoğraf — clip-path ile soldan sağa açılır */
.ba-img--main {
  z-index: 1;
  clip-path: inset(0 50% 0 0); /* başlangıç: sol yarısı görünür */
  transition: clip-path 0ms;
}

/* Handle */
.ba-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--color-white);
  z-index: 3;
  transform: translateX(-50%);
  cursor: ew-resize;
}

.ba-handle-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  font-size: 16px;
  color: var(--color-navy);
  font-weight: 700;
  transition: transform var(--duration-fast) var(--ease-smooth),
              box-shadow var(--duration-fast);
}

.ba-handle:hover .ba-handle-circle,
.ba-handle:active .ba-handle-circle {
  transform: translate(-50%, -50%) scale(1.15);
  box-shadow: 0 4px 32px rgba(45,212,191,0.4);
}

.ba-label {
  position: absolute;
  bottom: 20px;
  z-index: 4;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 14px;
  background: rgba(10,15,30,0.7);
  backdrop-filter: blur(8px);
  color: var(--color-white);
}

.ba-label--before { left: 20px; }
.ba-label--after  { right: 20px; }

/* ─── 16. BİZİ FARKLI KILAN ─────────────────────────────────── */
#why-us {
  background: var(--color-ivory);
  padding: var(--section-padding) 0;
  overflow: hidden;
}

.why-us-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.why-us-left { position: sticky; top: 120px; }

.why-us-image-wrap {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  max-width: 440px;
}

.why-us-image-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity var(--duration-slow) var(--ease-smooth),
              transform var(--duration-xslow) var(--ease-smooth);
}

.why-us-image-wrap img.active {
  opacity: 1;
  transform: scale(1);
}

.why-us-right { padding-top: 40px; }

.why-item {
  padding: 48px 0;
  border-bottom: 1px solid rgba(10,15,30,0.08);
  opacity: 0.3;
  transform: translateX(20px);
  transition: opacity var(--duration-base) var(--ease-smooth),
              transform var(--duration-base) var(--ease-smooth);
}

.why-item:first-child { padding-top: 0; }

.why-item.active {
  opacity: 1;
  transform: translateX(0);
}

.why-item-num {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-aqua-dim);
  margin-bottom: 12px;
}

.why-item-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.1;
}

.why-item-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-gray-dark);
  max-width: 460px;
}

@media (max-width: 900px) {
  .why-us-inner { grid-template-columns: 1fr; gap: 48px; }
  .why-us-left { position: relative; top: auto; }
  .why-us-image-wrap { max-width: 100%; aspect-ratio: 16/9; }
}

/* ─── 17. İSTATİSTİKLER ──────────────────────────────────────── */
#stats {
  background: var(--color-navy);
  padding: var(--section-padding) 0;
  overflow: hidden;
}

.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.06);
}

.stat-item {
  background: var(--color-navy);
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-aqua);
  transition: width var(--duration-slow) var(--ease-out-expo);
}

.stat-item.counted::before { width: 100%; }

.stat-value {
  font-family: var(--font-heading);
  font-size: clamp(48px, 6vw, 88px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-white);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.stat-suffix {
  font-size: 0.5em;
  color: var(--color-aqua);
  font-weight: 700;
}

.stat-label {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

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

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 40px 32px; }
}

/* ─── 18. NASIL ÇALIŞIYORUZ ──────────────────────────────────── */
#process {
  background: var(--color-navy-mid);
  padding: var(--section-padding) 0;
}

.process-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

.process-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  margin-top: 80px;
}

/* İlerleme çizgisi */
.process-track::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 80px;
  right: 80px;
  height: 1px;
  background: rgba(255,255,255,0.08);
  z-index: 0;
}

.process-progress-line {
  position: absolute;
  top: 40px;
  left: 80px;
  height: 1px;
  width: 0;
  background: var(--color-aqua);
  z-index: 1;
  transition: width 0.8s var(--ease-out-expo);
}

.process-step {
  position: relative;
  z-index: 2;
  opacity: 0.35;
  transition: opacity var(--duration-base) var(--ease-smooth);
}

.process-step.active { opacity: 1; }

.process-step-num {
  width: 80px;
  height: 80px;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 28px;
  background: var(--color-navy-mid);
  transition: border-color var(--duration-base) var(--ease-smooth),
              background var(--duration-base) var(--ease-smooth),
              color var(--duration-base) var(--ease-smooth);
}

.process-step.active .process-step-num {
  border-color: var(--color-aqua);
  background: var(--color-aqua);
  color: var(--color-navy);
}

.process-step-title {
  font-family: var(--font-heading);
  font-size: clamp(16px, 1.8vw, 22px);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
  line-height: 1.2;
}

.process-step-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .process-track { grid-template-columns: 1fr; gap: 32px; }
  .process-track::before,
  .process-progress-line { display: none; }
  .process-step { opacity: 1; }
}

/* ─── 19. FULLSCREEN QUOTE BÖLÜMÜ ───────────────────────────── */
#fullscreen-quote {
  position: relative;
  height: 70vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.fq-bg {
  position: absolute;
  inset: 0;
}

.fq-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.1);
  will-change: transform;
}

.fq-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 30, 0.72);
}

.fq-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 clamp(24px, 5vw, 80px);
  max-width: 800px;
}

.fq-content blockquote {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 60px);
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-style: italic;
  opacity: 0;
  transform: translateY(30px);
}

.fq-content blockquote span {
  color: var(--color-aqua);
  font-style: normal;
}

/* ─── 20. REFERANSLAR / YORUMLAR ─────────────────────────────── */
#testimonials {
  background: var(--color-offwhite);
  padding: var(--section-padding) 0;
  overflow: hidden;
}

.testimonials-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
}

.testimonials-track {
  margin-top: 80px;
  position: relative;
  overflow: hidden;
}

.testimonial-item {
  display: none;
  max-width: 800px;
}

.testimonial-item.active { display: block; }

.testimonial-quote-mark {
  font-family: var(--font-heading);
  font-size: 120px;
  line-height: 0.7;
  color: var(--color-aqua);
  opacity: 0.2;
  margin-bottom: 24px;
  display: block;
}

.testimonial-text {
  font-family: var(--font-heading);
  font-size: clamp(20px, 2.5vw, 34px);
  font-weight: 500;
  color: var(--color-navy);
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: 36px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-author-line {
  width: 32px;
  height: 1px;
  background: var(--color-aqua-dim);
}

.testimonial-author-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray-dark);
}

.testimonials-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 56px;
}

.testimonial-nav-btn {
  width: 48px;
  height: 48px;
  border: 1px solid rgba(10,15,30,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  font-size: 20px;
  transition: all var(--duration-fast) var(--ease-smooth);
  cursor: pointer;
}

.testimonial-nav-btn:hover {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

.testimonials-dots {
  display: flex;
  gap: 8px;
}

.testimonials-dot {
  width: 6px;
  height: 6px;
  background: rgba(10,15,30,0.2);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.testimonials-dot.active {
  background: var(--color-aqua-dim);
  width: 24px;
  border-radius: 3px;
}

/* ─── 21. CTA BÖLÜMÜ ─────────────────────────────────────────── */
#cta-section {
  background: var(--color-navy);
  padding: var(--section-padding) 0;
  overflow: hidden;
  position: relative;
}

/* Parçacık arka planı */
.cta-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.cta-particle {
  position: absolute;
  width: 1px;
  height: 1px;
  background: var(--color-aqua);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 8s ease-in-out infinite;
}

@keyframes particleFloat {
  0%   { transform: translateY(0) scale(0); opacity: 0; }
  10%  { opacity: 0.6; transform: scale(3); }
  90%  { opacity: 0.2; }
  100% { transform: translateY(-200px) scale(1); opacity: 0; }
}

.cta-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-headline {
  font-family: var(--font-heading);
  font-size: clamp(40px, 7vw, 100px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

.cta-headline em {
  font-style: normal;
  color: var(--color-aqua);
}

.cta-sub {
  font-size: clamp(15px, 1.3vw, 18px);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto 52px;
}

/* ─── 22. İLETİŞİM ───────────────────────────────────────────── */
#contact {
  background: var(--color-ivory);
  padding: var(--section-padding) 0;
}

.contact-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info { padding-top: 40px; }

.contact-brand {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 72px);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.contact-tagline {
  font-family: var(--font-heading);
  font-size: 18px;
  font-style: italic;
  color: var(--color-gray-dark);
  margin-bottom: 48px;
  line-height: 1.5;
}

.contact-details { display: flex; flex-direction: column; gap: 20px; }

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  color: var(--color-gray-dark);
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(10,15,30,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-aqua-dim);
  flex-shrink: 0;
  font-size: 16px;
}

.contact-detail-item a:hover { color: var(--color-aqua-dim); }

/* Form */
.contact-form-wrap { padding-top: 0; }

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

/* Form grup */
.form-group {
  position: relative;
  padding: 24px 0 0;
  border-bottom: 1px solid rgba(10,15,30,0.12);
  margin-bottom: 0;
}

.form-group--full { grid-column: 1 / -1; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-navy);
  padding: 8px 0 12px;
  resize: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-group select {
  cursor: pointer;
}

.form-group select option {
  color: var(--color-navy);
  background: var(--color-offwhite);
}

.form-group textarea {
  min-height: 100px;
}

/* Floating label */
.form-label {
  position: absolute;
  top: 28px;
  left: 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(10,15,30,0.4);
  transition: top var(--duration-fast) var(--ease-smooth),
              font-size var(--duration-fast) var(--ease-smooth),
              color var(--duration-fast) var(--ease-smooth);
  pointer-events: none;
}

.form-group.focused .form-label,
.form-group.has-value .form-label {
  top: 8px;
  font-size: 10px;
  color: var(--color-aqua-dim);
  letter-spacing: 0.15em;
}

/* Border glow efekti */
.form-border-glow {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-aqua);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.form-group.focused .form-border-glow { width: 100%; }

/* Form alt boşluk */
.form-gap { height: 24px; grid-column: 1 / -1; }

.form-group--right { padding-left: 24px; }

.form-submit-wrap {
  grid-column: 1 / -1;
  padding-top: 40px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.form-status {
  font-size: 14px;
  padding: 10px 0;
  opacity: 0;
  transition: opacity var(--duration-base);
}

.form-status.success { color: var(--color-aqua-dim); opacity: 1; }
.form-status.error   { color: #ef4444; opacity: 1; }

@media (max-width: 900px) {
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .contact-form { grid-template-columns: 1fr; }
  .form-group--right { padding-left: 0; }
}

/* ─── 23. FLOATING BUTONLAR ──────────────────────────────────── */
#whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  flex-shrink: 0;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-btn--whatsapp {
  background: #25d366;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
}

.float-btn--whatsapp:hover {
  box-shadow: 0 4px 28px rgba(37, 211, 102, 0.55);
}

.float-btn--phone {
  background: var(--color-aqua-dim);
  box-shadow: 0 4px 20px rgba(20, 184, 166, 0.35);
}

.float-btn--phone:hover {
  box-shadow: 0 4px 28px rgba(20, 184, 166, 0.55);
}

@media (max-width: 600px) {
  #whatsapp-float { bottom: 20px; right: 20px; }
  .float-btn { width: 46px; height: 46px; }
}

/* ─── 24. FOOTER ─────────────────────────────────────────────── */
#footer {
  background: var(--color-navy);
  padding: clamp(80px, 10vw, 140px) 0 40px;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* Büyük arka plan yazısı */
.footer-bg-text {
  position: absolute;
  bottom: -0.15em;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-heading);
  font-size: clamp(120px, 18vw, 280px);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: rgba(255,255,255,0.025);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 80px);
  position: relative;
  z-index: 2;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 40px;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: 20px;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-aqua);
  margin-bottom: 24px;
}

.footer-col-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col-links a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
  position: relative;
  display: inline-block;
}

.footer-col-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-aqua);
  transition: width var(--duration-base) var(--ease-out-expo);
}

.footer-col-links a:hover { color: var(--color-white); }
.footer-col-links a:hover::after { width: 100%; }

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  transition: color var(--duration-fast);
}

.footer-contact-item:hover { color: var(--color-white); }
.footer-contact-item i { color: var(--color-aqua); font-size: 14px; width: 16px; }

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-text-muted);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.footer-social a:hover {
  border-color: var(--color-aqua);
  color: var(--color-aqua);
  background: var(--color-aqua-glow);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 13px;
  color: rgba(245,242,235,0.3);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 12px;
  color: rgba(245,242,235,0.3);
  transition: color var(--duration-fast);
}

.footer-legal a:hover { color: var(--color-text-muted); }

@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 600px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ─── 25. YARDIMCI / UTILITY ─────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.overflow-hidden { overflow: hidden; }
.text-aqua       { color: var(--color-aqua); }
.text-center     { text-align: center; }
.mt-auto         { margin-top: auto; }

/* ─── 26. SAYFA GEÇİŞ OVERLAY ────────────────────────────────── */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--color-aqua);
  z-index: 9998;
  transform: scaleX(0);
  transform-origin: left;
  pointer-events: none;
}