/* ==========================================================================
   DOĞUŞ LOJİSTİK & TAŞIMACILIK - B2B ENDÜSTRİYEL LOJİSTİK TASARIM SİSTEMİ
   BELGELER: K1, R1, L2, C1, ADR TEHLİKELİ MADDE, ISO 9001, ISO 14001, OHSAS 18001
   RENK PALETİ: #901D10 (Doğuş Kırmızısı), #000000 (Siyah), #FFFFFF (Beyaz)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & CSS VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Kurumsal Ana Renk Paleti (#901D10 ve Tonları) */
  --color-primary: #901D10;
  --color-primary-hover: #ab2213;
  --color-primary-light: #c92a18;
  --color-primary-dark: #5c0f08;
  --color-primary-deep: #380703;
  --color-primary-tint: #fef2f2;
  --color-primary-soft: rgba(144, 29, 16, 0.07);
  --color-primary-glow: rgba(144, 29, 16, 0.35);

  /* Degrade (Luxury Industrial Gradients) */
  --gradient-primary: linear-gradient(135deg, #901D10 0%, #c92a18 50%, #5c0f08 100%);
  --gradient-dark: linear-gradient(135deg, #18181b 0%, #050505 100%);
  --gradient-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);

  /* Siyah & Koyu Renk Skalası (#000000 Tonları) */
  --color-dark: #000000;
  --color-dark-surface: #0a0a0c;
  --color-dark-card: #121215;
  --color-dark-alt: #18181b;
  --color-dark-border: #27272a;
  --color-dark-muted: #3f3f46;

  /* Beyaz & Açık Zemin Skalası (#FFFFFF Tonları) */
  --color-white: #ffffff;
  --color-bg-body: #ffffff;
  --color-bg-surface: #ffffff;
  --color-bg-alt: #fafafa;
  --color-bg-subtle: #f4f4f5;

  /* Metin Renkleri */
  --color-text-main: #000000;
  --color-text-body: #1c1917;
  --color-text-muted: #52525b;
  --color-text-light: #71717a;
  --color-text-inverse: #ffffff;

  /* Durum Renkleri */
  --color-success: #16a34a;
  --color-warning: #ea580c;
  --color-error: #dc2626;
  --color-info: #0284c7;

  /* Kenarlıklar */
  --color-border: #e4e4e7;
  --color-border-light: #f4f4f5;
  --color-border-focus: rgba(144, 29, 16, 0.4);

  /* Tipografi */
  --font-family-base: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-md: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 1.875rem;  /* 30px */
  --font-size-3xl: 2.25rem;   /* 36px */
  --font-size-4xl: 3rem;      /* 48px */
  --font-size-hero: clamp(2.25rem, 5vw, 3.75rem);

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.15;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  /* Boşluklar */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6.5rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Gölgeler */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-luxury: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-primary: 0 12px 24px -6px rgba(144, 29, 16, 0.35);

  /* Animasyon */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  --container-max-width: 1240px;
  --container-padding: 1.5rem;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-body);
  background-color: var(--color-bg-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg, picture, video {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all var(--transition-fast);
}

ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: transparent; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  color: var(--color-text-main);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.03em;
}

h1 { font-size: var(--font-size-hero); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #f1f1f4; }
::-webkit-scrollbar-thumb { background: #901D10; border-radius: 5px; }

.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3.5px;
  background: var(--gradient-primary);
  width: 0%;
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* --------------------------------------------------------------------------
   5. BÖLÜM VE DÜZEN YAPILARI (LAYOUT & SECTIONS)
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  position: relative;
  z-index: 2;
}

.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.section--alt {
  background-color: #fbfbfb;
  background-image: 
    radial-gradient(rgba(144, 29, 16, 0.04) 1.2px, transparent 1.2px),
    radial-gradient(rgba(0, 0, 0, 0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: 0 0, 14px 14px;
}

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-text-inverse);
}

.section--dark .section-header__description { color: #a1a1aa; }

/* --------------------------------------------------------------------------
   DİNAMİK BÖLÜM FİLİGRANLARI / SİLİK GALERİ ARKA PLAN GÖRSELLERİ (WATERMARKS)
   -------------------------------------------------------------------------- */
.section-watermark {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 640px;
  height: 480px;
  max-width: 58vw;
  max-height: 92%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.11;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 1;
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 25%, rgba(0, 0, 0, 0.4) 60%, transparent 80%);
  mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 25%, rgba(0, 0, 0, 0.4) 60%, transparent 80%);
  transition: opacity 0.5s ease;
  border-radius: var(--radius-2xl);
}

.section-watermark--right {
  right: -25px;
}

.section-watermark--left {
  left: -25px;
}

.section-watermark--bottom-right {
  top: auto;
  bottom: -20px;
  right: -20px;
  transform: none;
}

.section-watermark--bottom-left {
  top: auto;
  bottom: -20px;
  left: -20px;
  transform: none;
}

/* Koyu Zeminler ve Hero İçin Silik Filigran */
.section--dark .section-watermark,
.hero .section-watermark,
.section-watermark--dark {
  opacity: 0.13;
  mix-blend-mode: screen;
  filter: grayscale(35%) contrast(110%);
}

/* Mobil Cihazlar İçin Watermark Düzenlemesi */
@media (max-width: 768px) {
  .section-watermark {
    width: 320px;
    height: 240px;
    opacity: 0.07;
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 15%, transparent 72%);
    mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 15%, transparent 72%);
  }
  .section-watermark--right {
    right: -45px;
  }
  .section-watermark--left {
    left: -45px;
  }
}

/* Eski Statik Pseudo-Elementleri Temizleme (Dinamik Sisteme Geçiş) */
.section--watermark-truck-right::after,
.section--watermark-port-left::before,
.section--watermark-road-right::after,
.section--watermark-fleet-left::before,
.section--watermark-lowbed-right::after,
.section--watermark-chassis-left::before {
  content: none !important;
  display: none !important;
}

/* Sayfa Başlıkları için Sinematik Lojistik Arka Plan */
.page-header {
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('../img/galeri/dogus-nakliyat-mercedes-actros-1848-filo-parki.webp');
  background-size: cover;
  background-position: center right;
  opacity: 0.15;
  mix-blend-mode: luminosity;
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 20%, transparent 100%);
  mask-image: linear-gradient(to left, rgba(0,0,0,1) 20%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

/* Cert Strip Arka Plan Efekti */
.cert-strip {
  position: relative;
  overflow: hidden;
}

.cert-strip::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 380px;
  height: 100%;
  background-image: url('../img/slider-konteyner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.05;
  mix-blend-mode: multiply;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 10%, transparent 100%);
  mask-image: linear-gradient(to left, rgba(0,0,0,1) 10%, transparent 100%);
  z-index: 0;
}

@media (max-width: 768px) {
  .section--watermark-truck-right::after,
  .section--watermark-port-left::before,
  .section--watermark-road-right::after,
  .section--watermark-fleet-left::before,
  .section--watermark-lowbed-right::after,
  .section--watermark-chassis-left::before {
    display: none;
  }
}



.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto var(--space-2xl) auto;
}

.section-header__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.4rem 1.15rem;
  background-color: var(--color-primary-tint);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-extrabold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
  border: 1px solid rgba(144, 29, 16, 0.18);
}

.section-header__badge--dark {
  background-color: rgba(144, 29, 16, 0.2);
  color: #ff8a7a;
  border-color: rgba(144, 29, 16, 0.4);
}

.section-header__title { margin-bottom: var(--space-sm); }
.section-header__description {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.grid { display: grid; gap: var(--space-lg); }
.grid--2-cols { grid-template-columns: 1fr; }
.grid--3-cols { grid-template-columns: 1fr; }
.grid--4-cols { grid-template-columns: 1fr; }

/* --------------------------------------------------------------------------
   4. BUTTONS (.btn)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
  user-select: none;
}

.btn svg {
  width: 1.15rem;
  height: 1.15rem;
  transition: transform var(--transition-fast);
}

.btn:hover svg { transform: translateX(4px); }

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -6px rgba(144, 29, 16, 0.45);
  color: var(--color-text-inverse);
}

.btn--dark {
  background-color: var(--color-dark);
  color: var(--color-text-inverse);
}

.btn--dark:hover {
  background-color: #27272a;
  transform: translateY(-2px);
  color: var(--color-text-inverse);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text-main);
  border: 2px solid var(--color-dark);
}

.btn--outline:hover {
  background-color: var(--color-dark);
  color: var(--color-text-inverse);
}

.btn--outline-white {
  background-color: transparent;
  color: var(--color-text-inverse);
  border: 2px solid rgba(255, 255, 255, 0.35);
}

.btn--outline-white:hover {
  background-color: #ffffff;
  border-color: #ffffff;
  color: var(--color-dark);
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: var(--font-size-base);
  border-radius: var(--radius-lg);
}

.btn--block { width: 100%; }

/* --------------------------------------------------------------------------
   5. TOPBAR & SITE HEADER
   -------------------------------------------------------------------------- */
.top-bar {
  background-color: #050505;
  color: #a1a1aa;
  font-size: var(--font-size-xs);
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: none;
}

.top-bar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar__info {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.top-bar__item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-bar__item svg {
  width: 15px;
  height: 15px;
  color: var(--color-primary-light);
}

.top-bar__item strong { color: #ffffff; }

.top-bar__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.top-bar__badge {
  background-color: rgba(144, 29, 16, 0.25);
  color: #ff6b59;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 700;
  border: 1px solid rgba(144, 29, 16, 0.4);
}

.top-bar__links a:hover { color: #ffffff; }

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header--scrolled {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border-bottom-color: rgba(144, 29, 16, 0.25);
  background-color: rgba(255, 255, 255, 0.98);
}

.site-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 6rem;
  transition: height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header--scrolled .site-header__container {
  height: 4.5rem;
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  position: relative;
}

.brand__logo-img {
  height: 88px;
  width: auto;
  max-width: 320px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.08));
  transition: height 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s ease, filter 0.3s ease;
}

.site-header--scrolled .brand__logo-img {
  height: 58px;
}

.brand:hover .brand__logo-img {
  transform: translateY(-1px) scale(1.02);
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.12));
}

.footer-brand__logo-img {
  height: 88px;
  width: auto;
  max-width: 320px;
  object-fit: contain;
  display: block;
  margin-bottom: var(--space-md);
  filter: drop-shadow(0 3px 10px rgba(0, 0, 0, 0.5));
  transition: all 0.3s ease;
}

.footer-brand__logo:hover .footer-brand__logo-img {
  transform: translateY(-2px) scale(1.02);
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.7));
}

@media (max-width: 768px) {
  .site-header__container {
    height: 4.85rem;
  }
  .site-header--scrolled .site-header__container {
    height: 4.2rem;
  }
  .brand__logo-img {
    height: 62px;
    max-width: 220px;
  }
  .site-header--scrolled .brand__logo-img {
    height: 48px;
  }
  .footer-brand__logo-img {
    height: 70px;
    max-width: 240px;
  }
}


.brand__icon {
  width: 2.85rem;
  height: 2.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-primary);
}

.brand__icon svg { width: 1.65rem; height: 1.65rem; }
.brand__text span { color: var(--color-primary); }

/* Hamburger */
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0.25rem;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.nav__toggle-bar {
  width: 100%;
  height: 2.5px;
  background-color: var(--color-dark);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background-color: var(--color-primary);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background-color: var(--color-primary);
}

/* Nav Menu */
.nav__menu {
  position: fixed;
  top: 5.25rem;
  left: 0;
  width: 100%;
  height: calc(100vh - 5.25rem);
  background-color: #ffffff;
  flex-direction: column;
  padding: var(--space-xl) var(--container-padding);
  box-shadow: var(--shadow-xl);
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  display: flex;
  overflow-y: auto;
}

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

.nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.nav__item { position: relative; }

.nav__link {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-main);
  padding: var(--space-xs) 0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  position: relative;
  transition: color var(--transition-fast);
  cursor: pointer;
}

.nav__link:hover, .nav__link--active { color: var(--color-primary); }

.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2.5rem;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav__dropdown-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-normal);
}

/* Dropdown Menü (Kurumsal Alt Menüsü) */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-menu {
  display: none;
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 0.5rem 0;
  box-shadow: var(--shadow-xl);
  border: 1.5px solid var(--color-border);
  min-width: 210px;
  list-style: none;
}

.nav__dropdown-item { margin: 0; }

.nav__dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
  transition: all var(--transition-fast);
}

.nav__dropdown-link:hover {
  background-color: var(--color-primary-tint);
  color: var(--color-primary);
  padding-left: 1.5rem;
}

/* Mobil Dropdown */
.nav__dropdown--open .nav__dropdown-menu {
  display: block;
  margin-top: 0.5rem;
  box-shadow: none;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
}

.nav__dropdown--open .nav__dropdown-icon {
  transform: rotate(180deg);
}

.nav__actions { display: flex; flex-direction: column; gap: var(--space-sm); }


/* --------------------------------------------------------------------------
   6. HERO & SLIDER (GÖRSEL ARKA PLANLI & METİN KATMANLI SLIDER)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: var(--space-3xl) 0;
  background-color: #ffffff;
  background-image: radial-gradient(circle at 100% 0%, rgba(144, 29, 16, 0.05) 0%, transparent 60%),
                    radial-gradient(circle at 0% 100%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.45rem 1.15rem;
  background-color: var(--color-primary-tint);
  border: 1px solid rgba(144, 29, 16, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero__badge-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  animation: pulseRed 2s infinite ease-in-out;
}

@keyframes pulseRed {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(144, 29, 16, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(144, 29, 16, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(144, 29, 16, 0); }
}

.hero__title { margin-bottom: var(--space-md); color: var(--color-dark); }
.hero__title-highlight { color: var(--color-primary); display: inline-block; }

.hero__description {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-xl);
}

.hero__cta-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.hero__features-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.hero__feature-check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}

.hero__feature-check svg { width: 17px; height: 17px; color: var(--color-primary); }

/* ==========================================================================
   HERO SLIDER / CAROUSEL (GÖRSEL ARKA PLAN + METİN OVERLAY)
   ========================================================================== */
.hero-slider {
  position: relative;
  width: 100%;
  min-height: 480px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-luxury);
  border: 2px solid #27272a;
  background-color: var(--color-dark);
}

.hero-slider__track {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 480px;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform: scale(1.03);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero-slide--active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  z-index: 2;
}

.hero-slide__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg, 
    rgba(0, 0, 0, 0.15) 0%, 
    rgba(0, 0, 0, 0.5) 45%, 
    rgba(0, 0, 0, 0.88) 80%, 
    rgba(0, 0, 0, 0.96) 100%
  );
  z-index: 1;
}

.hero-slide__content {
  position: relative;
  z-index: 3;
  padding: var(--space-xl) var(--space-xl) var(--space-2xl) var(--space-xl);
  color: #ffffff;
  max-width: 100%;
}

.hero-slide__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.85rem;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 11px;
  font-weight: 800;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-xs);
  box-shadow: 0 4px 10px rgba(144, 29, 16, 0.4);
}

.hero-slide__title {
  color: #ffffff;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.25;
  margin-bottom: var(--space-xs);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.hero-slide__desc {
  color: #e4e4e7;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-md);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.hero-slide__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 12px;
  font-weight: 700;
  color: #ff8a7a;
  background: rgba(144, 29, 16, 0.25);
  border: 1px solid rgba(144, 29, 16, 0.45);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.hero-slide__tag svg { width: 14px; height: 14px; }

/* Slider Navigasyon Okları */
.hero-slider__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.6);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-slider__nav:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-50%) scale(1.08);
}

.hero-slider__nav svg { width: 1.25rem; height: 1.25rem; }
.hero-slider__nav--prev { left: 1rem; }
.hero-slider__nav--next { right: 1rem; }

/* Slider Noktaları (Dots) */
.hero-slider__dots {
  position: absolute;
  bottom: 1rem;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  z-index: 10;
}

.hero-slider__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.35);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  padding: 0;
}

.hero-slider__dot:hover {
  background-color: rgba(255, 255, 255, 0.7);
}

.hero-slider__dot--active {
  width: 28px;
  background-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(144, 29, 16, 0.8);
}


/* --------------------------------------------------------------------------
   7. BELGELER VE LİSANSLAR ŞERİDİ (CERTIFICATES STRIP)
   -------------------------------------------------------------------------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.cert-card {
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  transition: all var(--transition-normal);
}

.cert-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.cert-card__tag {
  background: var(--color-dark);
  color: #ffffff;
  font-size: var(--font-size-xs);
  font-weight: 800;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
  white-space: nowrap;
}

.cert-card__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}

.cert-card__desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   8. OPERASYONEL ALTYAPI VE LİMAN AĞI (.oper-grid)
   -------------------------------------------------------------------------- */
.oper-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.oper-card {
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: all var(--transition-normal);
}

.oper-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.oper-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.oper-card__icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.oper-card__icon svg { width: 1.65rem; height: 1.65rem; }

.oper-card__title {
  font-size: var(--font-size-lg);
  color: var(--color-dark);
  font-weight: var(--font-weight-extrabold);
}

.oper-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.oper-card__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
}

.oper-card__list-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}

.oper-card__list-item svg {
  width: 15px;
  height: 15px;
  color: var(--color-primary);
  flex-shrink: 0;
}


/* --------------------------------------------------------------------------
   9. HİZMET KARTLARI (.service-card) VE KART İÇİ SİLİK FİLİGRAN (.card-watermark)
   -------------------------------------------------------------------------- */
.card,
.service-card,
.oper-card,
.why-card,
.cert-card,
.doc-card,
.form-card,
.contact-info-card {
  position: relative;
  overflow: hidden;
}

.card > *,
.service-card > *,
.oper-card > *,
.why-card > *,
.cert-card > *,
.doc-card > *,
.form-card > *,
.contact-info-card > * {
  position: relative;
  z-index: 2;
}

.card-watermark {
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 250px;
  height: 190px;
  max-width: 78%;
  max-height: 78%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.11;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 1 !important;
  -webkit-mask-image: radial-gradient(ellipse at bottom right, rgba(0, 0, 0, 1) 25%, rgba(0, 0, 0, 0.35) 65%, transparent 88%);
  mask-image: radial-gradient(ellipse at bottom right, rgba(0, 0, 0, 1) 25%, rgba(0, 0, 0, 0.35) 65%, transparent 88%);
  transition: opacity var(--transition-normal), transform var(--transition-smooth);
  border-radius: var(--radius-xl);
}

.card:hover .card-watermark,
.service-card:hover .card-watermark,
.oper-card:hover .card-watermark,
.why-card:hover .card-watermark,
.cert-card:hover .card-watermark,
.doc-card:hover .card-watermark {
  opacity: 0.22;
  transform: scale(1.08) translate(-4px, -4px);
}

/* Koyu Renkli Kartlar */
.card--dark .card-watermark,
.card[style*="background-color: var(--color-dark)"] .card-watermark,
.card[style*="#000"] .card-watermark {
  opacity: 0.14;
  mix-blend-mode: screen;
  filter: grayscale(40%) contrast(110%);
}

.card--dark:hover .card-watermark,
.card[style*="background-color: var(--color-dark)"]:hover .card-watermark,
.card[style*="#000"]:hover .card-watermark {
  opacity: 0.26;
}

.card {
  background-color: var(--color-bg-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-smooth);
  position: relative;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card__icon {
  width: 3.75rem;
  height: 3.75rem;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  transition: all var(--transition-normal);
}

.service-card__icon svg { width: 1.85rem; height: 1.85rem; }

.service-card:hover .service-card__icon {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  transform: scale(1.08) rotate(3deg);
  box-shadow: var(--shadow-primary);
}

.service-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-dark);
}

.service-card__description {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.service-card__features {
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.service-card__feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-body);
  font-weight: var(--font-weight-semibold);
}

.service-card__feature-item svg {
  width: 1rem;
  height: 1rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-top: auto;
}

.service-card__link svg { width: 1rem; height: 1rem; transition: transform var(--transition-fast); }
.service-card__link:hover svg { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   10. ARAÇ VE EKİPMAN FİLOSU SEKMELERİ (FLEET SHOWCASE)
   -------------------------------------------------------------------------- */
.tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.tab-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

.tab-btn--active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-primary);
}

.tab-pane { display: none; }
.tab-pane--active { display: block; animation: fadeIn 0.3s ease-in-out; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fleet-card {
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: grid;
  gap: var(--space-xl);
}

.fleet-card__visual {
  background: var(--gradient-dark);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: #ffffff;
  text-align: center;
}

.fleet-card__visual svg {
  width: 5rem;
  height: 5rem;
  color: var(--color-primary-light);
  margin-bottom: var(--space-md);
}

.fleet-card__details {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.fleet-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.fleet-spec-item {
  background: var(--color-bg-alt);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
}

.fleet-spec-item__label { font-size: var(--font-size-xs); color: var(--color-text-muted); }
.fleet-spec-item__val { font-size: var(--font-size-md); font-weight: var(--font-weight-bold); color: var(--color-dark); }

/* --------------------------------------------------------------------------
   11. KURUMSAL GÜVENCELERİMİZ & NEDEN DOĞUŞ NAKLİYAT
   -------------------------------------------------------------------------- */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.why-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(144, 29, 16, 0.3);
}

.why-card:hover::before {
  opacity: 1;
}

.why-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.why-card__icon {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.why-card:hover .why-card__icon {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: scale(1.05);
}

.why-card__icon svg {
  width: 1.65rem;
  height: 1.65rem;
}

.why-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(144, 29, 16, 0.08);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.why-card__title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.why-card__desc {
  font-size: 0.925rem;
  color: var(--color-text-body);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.why-card__footer {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.why-card__footer svg {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   12. WHATSAPP FAB, TOAST, ACCORDION & FORMS
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: 5rem;
  right: 1.5rem;
  width: 3.5rem;
  height: 3.5rem;
  background-color: #25d366;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  z-index: 950;
  transition: all var(--transition-normal);
}

.whatsapp-float:hover { transform: scale(1.1); background-color: #1eb954; color: #ffffff; }
.whatsapp-float svg { width: 1.85rem; height: 1.85rem; }

.whatsapp-float::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #25d366;
  opacity: 0.5;
  animation: pulseWhatsapp 2s infinite ease-out;
  z-index: -1;
}

@keyframes pulseWhatsapp {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.5); opacity: 0; }
}

.cta-banner {
  background: linear-gradient(135deg, #781409 0%, #901D10 50%, #5a0e06 100%);
  border-radius: var(--radius-2xl);
  padding: 4.25rem 2.5rem;
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.45) 100%);
  pointer-events: none;
  z-index: 1;
}

/* Sol Silik Tır Görseli */
.cta-banner__truck-left {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 380px;
  height: 260px;
  background-image: url('../img/slider-konteyner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  mix-blend-mode: luminosity;
  -webkit-mask-image: linear-gradient(to right, rgba(0,0,0,1) 30%, transparent 100%), linear-gradient(to top, rgba(0,0,0,1) 40%, transparent 100%);
  mask-image: linear-gradient(to right, rgba(0,0,0,1) 30%, transparent 100%), linear-gradient(to top, rgba(0,0,0,1) 40%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
  pointer-events: none;
  z-index: 0;
}

/* Sağ Silik Tır Görseli */
.cta-banner__truck-right {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 380px;
  height: 260px;
  background-image: url('../img/dogus-filo-ozmal.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  mix-blend-mode: luminosity;
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 30%, transparent 100%), linear-gradient(to top, rgba(0,0,0,1) 40%, transparent 100%);
  mask-image: linear-gradient(to left, rgba(0,0,0,1) 30%, transparent 100%), linear-gradient(to top, rgba(0,0,0,1) 40%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
  pointer-events: none;
  z-index: 0;
}

@media (max-width: 768px) {
  .cta-banner {
    padding: 3rem 1.5rem;
  }
  .cta-banner__truck-left,
  .cta-banner__truck-right {
    width: 200px;
    height: 150px;
    opacity: 0.10;
  }
}

.cta-banner__content { 
  position: relative; 
  max-width: 900px; 
  margin: 0 auto; 
  z-index: 2;
}

.cta-banner__title { 
  color: #ffffff !important; 
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.cta-banner__description { 
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.95) !important;
  line-height: 1.65;
  max-width: 720px;
  margin: 0 auto 2.25rem auto;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.cta-banner__actions { 
  display: flex; 
  flex-direction: row;
  flex-wrap: wrap;
  gap: 1.25rem; 
  justify-content: center; 
  align-items: center;
}

.cta-banner__actions .btn {
  padding: 0.9rem 2rem;
  font-size: 1rem;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   FOTO GALERİ & LIGHTBOX MODAL SİSTEMİ
   -------------------------------------------------------------------------- */

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.gallery-filter-btn {
  background-color: #ffffff;
  border: 1.5px solid var(--color-border);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.gallery-filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.gallery-filter-btn--active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(144, 29, 16, 0.35);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(144, 29, 16, 0.3);
}

.gallery-item__img-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
  background-color: #18181b;
}

.gallery-item__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.gallery-item:hover .gallery-item__img {
  transform: scale(1.08);
}

.gallery-item__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.2) 50%, transparent 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__zoom-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  transform: scale(0.8);
  transition: transform var(--transition-fast);
}

.gallery-item:hover .gallery-item__zoom-btn {
  transform: scale(1);
}

.gallery-item__info {
  padding: 1.25rem;
}

.gallery-item__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background-color: var(--color-primary-tint);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
}

.gallery-item__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
  line-height: 1.4;
}

.gallery-item__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.lightbox--active {
  display: flex;
  opacity: 1;
}

.lightbox__container {
  position: relative;
  max-width: 92vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  animation: zoomInLightbox 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes zoomInLightbox {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.lightbox__caption {
  margin-top: 1rem;
  color: #ffffff;
  text-align: center;
}

.lightbox__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.lightbox__counter {
  font-size: 0.85rem;
  color: #a1a1aa;
}

.lightbox__close {
  position: absolute;
  top: -45px;
  right: 0;
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

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

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lightbox__nav:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   BELGELERİMİZ GÖRSEL SERGİ & DETAY KARTLARI
   -------------------------------------------------------------------------- */
.doc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .doc-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .doc-grid { grid-template-columns: repeat(4, 1fr); }
}

.doc-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.doc-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(144, 29, 16, 0.35);
}

.doc-card__thumb {
  background: #f8fafc;
  padding: 1.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.doc-card__img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  background: #ffffff;
  padding: 0.5rem;
  transition: transform var(--transition-normal);
}

.doc-card:hover .doc-card__img {
  transform: scale(1.05);
}

.doc-card__zoom-hint {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.doc-card:hover .doc-card__zoom-hint {
  opacity: 1;
}

.doc-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.doc-card__badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background: var(--color-primary-tint);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.doc-card__title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.doc-card__summary {
  font-size: 0.875rem;
  color: var(--color-text-body);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.doc-card__meta {
  border-top: 1px solid var(--color-border);
  padding-top: 0.85rem;
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.doc-card__status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-success);
  font-weight: 700;
}




.page-header {
  padding: var(--space-3xl) 0 var(--space-2xl) 0;
  background-color: var(--color-dark);
  color: var(--color-text-inverse);
  border-bottom: 3px solid var(--color-primary);
}

.page-header__title { color: #ffffff; margin-bottom: var(--space-xs); }
.page-header__subtitle { color: #a1a1aa; font-size: var(--font-size-md); max-width: 720px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  color: #a1a1aa;
  margin-bottom: var(--space-md);
}

.breadcrumb__link { color: #d4d4d8; }
.breadcrumb__link:hover { color: var(--color-primary-light); }
.breadcrumb__separator { color: #71717a; }
.breadcrumb__current { color: var(--color-primary-light); font-weight: var(--font-weight-bold); }

.accordion { display: flex; flex-direction: column; gap: var(--space-sm); max-width: 840px; margin: 0 auto; }
.accordion__item {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-surface);
  overflow: hidden;
  transition: all var(--transition-normal);
}
.accordion__item--open { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }
.accordion__header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  text-align: left;
  background: transparent;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
  color: var(--color-dark);
  cursor: pointer;
}
.accordion__icon { width: 1.25rem; height: 1.25rem; color: var(--color-primary); transition: transform var(--transition-normal); flex-shrink: 0; }
.accordion__item--open .accordion__icon { transform: rotate(180deg); }
.accordion__content {
  display: none;
  padding: 0 var(--space-lg) var(--space-lg) var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}
.accordion__item--open .accordion__content { display: block; }

.form-card {
  background-color: var(--color-bg-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.form-group { margin-bottom: var(--space-md); display: flex; flex-direction: column; gap: var(--space-2xs); }
.form-label { font-size: var(--font-size-xs); font-weight: var(--font-weight-bold); color: var(--color-dark); text-transform: uppercase; letter-spacing: 0.04em; }
.form-label--required::after { content: ' *'; color: var(--color-primary); }
.form-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  font-size: var(--font-size-sm);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  color: var(--color-dark);
  transition: all var(--transition-fast);
}
.form-control:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-border-focus); }
.form-control--error { border-color: var(--color-error); background-color: #fff5f5; }
textarea.form-control { min-height: 130px; resize: vertical; }

.form-feedback { font-size: var(--font-size-xs); color: var(--color-error); display: none; font-weight: 500; }
.form-control--error + .form-feedback { display: block; }

.contact-info-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background-color: var(--color-bg-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-normal);
}
.contact-info-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.contact-info-card__icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-info-card__icon svg { width: 1.5rem; height: 1.5rem; }
.contact-info-card__title { font-size: var(--font-size-md); margin-bottom: var(--space-2xs); color: var(--color-dark); }
.contact-info-card__text { font-size: var(--font-size-sm); color: var(--color-text-muted); line-height: var(--line-height-normal); }

.map-frame {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 2px solid var(--color-border);
}
.map-frame iframe { width: 100%; height: 100%; border: none; }

.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background-color: var(--color-dark);
  color: #ffffff;
  box-shadow: var(--shadow-luxury);
  font-size: var(--font-size-sm);
  animation: slideIn 0.3s ease-out forwards;
}

.toast--success { border-left: 4px solid var(--color-primary); }
.toast--error { border-left: 4px solid var(--color-error); }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   13. FOOTER & RESPONSIVE
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-dark);
  color: #a1a1aa;
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-xl);
  margin-top: auto;
  border-top: 4px solid var(--color-primary);
}

.footer-grid { display: grid; gap: var(--space-2xl); margin-bottom: var(--space-3xl); }
.footer-brand__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  color: #ffffff;
  margin-bottom: var(--space-md);
}
.footer-brand__logo span span { color: var(--color-primary); }
.footer-brand__logo .brand__icon { width: 2.25rem; height: 2.25rem; }
.footer-brand__logo .brand__icon svg { width: 1.25rem; height: 1.25rem; }
.footer-brand__text { font-size: var(--font-size-sm); line-height: var(--line-height-relaxed); margin-bottom: var(--space-lg); }

.footer-socials { display: flex; gap: var(--space-xs); }
.footer-social-link {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  background-color: #18181b;
  color: #d4d4d8;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.footer-social-link svg { width: 1.2rem; height: 1.2rem; }
.footer-social-link:hover { background-color: var(--color-primary); color: #ffffff; transform: translateY(-2px); }

.footer-col__title {
  color: #ffffff;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-xs);
}
.footer-col__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2rem;
  height: 2.5px;
  background-color: var(--color-primary);
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-link {
  font-size: var(--font-size-sm);
  color: #a1a1aa;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}
.footer-link:hover { color: #ffffff; transform: translateX(3px); }

.footer-contact-item {
  display: flex;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-sm);
  line-height: var(--line-height-normal);
}
.footer-contact-item svg { width: 1.25rem; height: 1.25rem; color: var(--color-primary); flex-shrink: 0; margin-top: 0.15rem; }

.footer-bottom {
  border-top: 1px solid #27272a;
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  text-align: center;
  font-size: var(--font-size-xs);
}
.footer-bottom-links { display: flex; gap: var(--space-md); }
.footer-bottom-links a:hover { color: #ffffff; }

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 2.75rem;
  height: 2.75rem;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 900;
}
.back-to-top--visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background-color: var(--color-primary-hover); transform: translateY(-4px); box-shadow: var(--shadow-primary); }
.back-to-top svg { width: 1.25rem; height: 1.25rem; }

@media (min-width: 576px) {
  .hero__cta-group { flex-direction: row; }
  .cta-banner__actions { flex-direction: row; }
  .grid--2-cols { grid-template-columns: repeat(2, 1fr); }
  .calc-options { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .top-bar { display: block; }
  .grid--3-cols { grid-template-columns: repeat(2, 1fr); }
  .grid--4-cols { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
  .calculator-grid { grid-template-columns: 1.4fr 1fr; align-items: center; }
  .fleet-card { grid-template-columns: 0.9fr 1.1fr; }
  .cert-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 992px) {
  .nav__toggle { display: none; }
  .nav__menu {
    position: static;
    height: auto;
    width: auto;
    background-color: transparent;
    padding: 0;
    box-shadow: none;
    transform: none;
    flex-direction: row;
    align-items: center;
    overflow-y: visible;
    gap: var(--space-xl);
  }
  .nav__list { flex-direction: row; align-items: center; gap: var(--space-xl); margin-bottom: 0; }
  .nav__link { font-size: var(--font-size-sm); }
  
  /* Desktop Dropdown Hover */
  .nav__dropdown {
    position: relative;
    padding: 0.5rem 0;
  }
  .nav__dropdown-menu {
    position: absolute;
    top: calc(100% - 0.25rem);
    left: 0;
    margin-top: 0;
    display: none;
    animation: fadeInDropdown 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1050;
  }
  
  /* Hover Köprüsü (Mouse geçişinde menünün kapanmasını önler) */
  .nav__dropdown-menu::before {
    content: '';
    position: absolute;
    top: -16px;
    left: 0;
    width: 100%;
    height: 16px;
    background: transparent;
  }

  .nav__dropdown:hover .nav__dropdown-menu,
  .nav__dropdown:focus-within .nav__dropdown-menu,
  .nav__dropdown-menu:hover {
    display: block;
  }
  .nav__dropdown:hover .nav__dropdown-icon {
    transform: rotate(180deg);
  }
  
  .nav__actions { flex-direction: row; }
  .hero { padding: var(--space-4xl) 0; }
  .hero .grid--2-cols { grid-template-columns: 1.15fr 0.85fr; align-items: center; }
  .grid--3-cols { grid-template-columns: repeat(3, 1fr); }
  .grid--4-cols { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.25fr; }
}

@keyframes fadeInDropdown {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}


@media (min-width: 1200px) {
  :root { --container-padding: 2rem; }
}