/* ==========================================================================
   TEKNODATA BİLGİ TEKNOLOJİLERİ LTD. ŞTİ. - KURUMSAL WEB SİTESİ STİL DOSYASI
   Tasarım Temeli: Kurumsal Mavi / Lacivert / Siyan Teknoloji Paleti
   ========================================================================== */

:root {
  /* Kurumsal Renk Paleti (Teknodata Orijinal Logo Mavisi #1981C2 & Grisi #898989 Temelli) */
  --td-navy-950: #091d2c;
  --td-navy-900: #0d2b42;
  --td-navy-800: #123c5c;
  --td-navy-700: #164f78;
  --td-blue-700: #13689e;
  --td-blue-600: #1981c2;
  --td-blue-500: #2293d8;
  --td-cyan-500: #1981c2;
  --td-cyan-400: #42a5e3;
  --td-cyan-100: #e1f1fb;
  --td-blue-50: #f0f8fd;
  --td-brand-gray: #898989;

  /* Nötr Renkler */
  --td-slate-900: #0f172a;
  --td-slate-800: #1e293b;
  --td-slate-700: #334155;
  --td-slate-600: #475569;
  --td-slate-500: #64748b;
  --td-slate-400: #94a3b8;
  --td-slate-300: #cbd5e1;
  --td-slate-200: #e2e8f0;
  --td-slate-100: #f1f5f9;
  --td-slate-50: #f8fafc;
  --td-white: #ffffff;

  /* Durum Renkleri */
  --td-success: #10b981;
  --td-whatsapp: #25d366;
  --td-warning: #f59e0b;
  --td-danger: #ef4444;

  /* Gölgeler ve Efektler */
  --shadow-sm: 0 1px 3px rgba(13, 43, 66, 0.06), 0 1px 2px rgba(13, 43, 66, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(13, 43, 66, 0.08), 0 2px 6px -1px rgba(13, 43, 66, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(13, 43, 66, 0.12), 0 4px 12px -2px rgba(13, 43, 66, 0.06);
  --shadow-xl: 0 20px 40px -8px rgba(13, 43, 66, 0.18), 0 8px 16px -4px rgba(13, 43, 66, 0.08);
  --shadow-blue: 0 10px 25px -5px rgba(25, 129, 194, 0.35);

  /* Yuvarlatma ve Geçişler */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Tipografi */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-heading: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Sıfırlama ve Temel Ayarlar */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--td-slate-700);
  background-color: var(--td-white);
  line-height: 1.65;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--td-navy-900);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: var(--td-blue-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--td-cyan-500);
}

ul {
  list-style: none;
}

img, svg {
  max-width: 100%;
  vertical-align: middle;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   ÜST BİLGİ ÇUBUĞU (TOPBAR)
   ========================================================================== */
.topbar {
  background: var(--td-navy-950);
  color: var(--td-slate-300);
  font-size: 0.825rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: 1030;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.topbar-contact {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.topbar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--td-slate-300);
  transition: color var(--transition-fast);
}

.topbar-item:hover {
  color: var(--td-cyan-400);
}

.topbar-item svg {
  width: 14px;
  height: 14px;
  color: var(--td-cyan-400);
  flex-shrink: 0;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar-links a {
  color: var(--td-slate-300);
  font-weight: 500;
}

.topbar-links a:hover {
  color: var(--td-white);
}

.iso-badge-top {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(0, 168, 232, 0.14);
  color: var(--td-cyan-400);
  border: 1px solid rgba(0, 168, 232, 0.3);
  padding: 0.15rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

/* ==========================================================================
   ANA HEADER VE NAVİGASYON (MENÜ & ALT MENÜLER)
   ========================================================================== */
.site-header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--td-slate-200);
  position: sticky;
  top: 0;
  z-index: 1020;
  transition: box-shadow var(--transition-normal), background var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  gap: 1.5rem;
}

/* Logo Tasarımı */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  max-width: 310px;
  object-fit: contain;
  display: block;
}

.footer-brand .brand-logo-img {
  height: 40px;
  max-width: 280px;
}

@media (max-width: 480px) {
  .brand-logo-img {
    height: 34px;
    max-width: 220px;
  }
}

.brand-logo-mark {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--td-navy-900) 0%, var(--td-blue-600) 60%, var(--td-cyan-500) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--td-white);
  box-shadow: 0 6px 16px rgba(0, 98, 204, 0.25);
  position: relative;
  overflow: hidden;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--td-navy-900);
  line-height: 1.05;
}

.brand-name span {
  color: var(--td-blue-600);
}

.brand-sub {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--td-slate-500);
  margin-top: 2px;
}

/* Ana Navigasyon */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.65rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--td-navy-900);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link svg.chevron {
  width: 15px;
  height: 15px;
  transition: transform var(--transition-fast);
  color: var(--td-slate-500);
}

.nav-item:hover > .nav-link,
.nav-link.active {
  color: var(--td-blue-600);
  background: var(--td-blue-50);
}

.nav-item:hover > .nav-link svg.chevron {
  transform: rotate(180deg);
  color: var(--td-blue-600);
}

/* Açılır Alt Menü (Dropdown) */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 280px;
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 0.6rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: 1050;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 0;
  right: 0;
  height: 10px;
}

.nav-item:hover > .dropdown-menu,
.nav-item:focus-within > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--td-slate-700);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.dropdown-link:hover,
.dropdown-link.active {
  background: var(--td-blue-50);
  color: var(--td-blue-600);
  transform: translateX(3px);
}

.dropdown-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--td-blue-50);
  color: var(--td-blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
  transition: all var(--transition-fast);
}

.dropdown-link:hover .dropdown-icon {
  background: var(--td-blue-600);
  color: var(--td-white);
}

.dropdown-icon svg {
  width: 18px;
  height: 18px;
}

.dropdown-text {
  display: flex;
  flex-direction: column;
}

.dropdown-title {
  font-weight: 600;
  color: var(--td-navy-900);
  line-height: 1.3;
}

.dropdown-link:hover .dropdown-title {
  color: var(--td-blue-600);
}

.dropdown-desc {
  font-size: 0.76rem;
  color: var(--td-slate-500);
  margin-top: 2px;
  line-height: 1.35;
}

/* Alt-Alt Menü (Microsoft Bulut Çözümleri -> Azure & M365) */
.dropdown-sub-group {
  margin-left: 2.75rem;
  margin-top: 0.15rem;
  margin-bottom: 0.35rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--td-cyan-400);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.dropdown-sub-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.65rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--td-slate-700);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-sub-link:hover,
.dropdown-sub-link.active {
  background: var(--td-cyan-100);
  color: var(--td-blue-700);
}

/* Header Aksiyon Butonları */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.4rem;
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  line-height: 1.2;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background: linear-gradient(135deg, var(--td-blue-600) 0%, var(--td-blue-700) 100%);
  color: var(--td-white);
  box-shadow: 0 4px 14px rgba(0, 98, 204, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--td-blue-500) 0%, var(--td-blue-600) 100%);
  color: var(--td-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue);
}

.btn-cyan {
  background: linear-gradient(135deg, var(--td-cyan-500) 0%, var(--td-blue-600) 100%);
  color: var(--td-white);
  box-shadow: 0 4px 16px rgba(0, 168, 232, 0.35);
}

.btn-cyan:hover {
  color: var(--td-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 168, 232, 0.45);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.08);
  color: var(--td-white);
  border-color: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(6px);
}

.btn-outline-light:hover {
  background: var(--td-white);
  color: var(--td-navy-900);
  border-color: var(--td-white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--td-blue-600);
  border-color: var(--td-blue-600);
}

.btn-outline:hover {
  background: var(--td-blue-600);
  color: var(--td-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.55rem 1.05rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 1.85rem;
  font-size: 1rem;
}

/* Mobil Menü Butonu */
.mobile-toggle {
  display: none;
  background: var(--td-slate-100);
  border: 1px solid var(--td-slate-200);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--td-navy-900);
  cursor: pointer;
}

/* ==========================================================================
   ANASAYFA SLIDER / HERO ALANI
   ========================================================================== */
.hero-slider {
  position: relative;
  background: linear-gradient(135deg, var(--td-navy-950) 0%, var(--td-navy-900) 50%, var(--td-navy-800) 100%);
  color: var(--td-white);
  overflow: hidden;
  min-height: 620px;
  display: flex;
  align-items: center;
}

/* Teknoloji Arka Plan Izgarası */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 80% 20%, rgba(0, 168, 232, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 15% 80%, rgba(0, 98, 204, 0.22) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
}

.hero-slides-wrapper {
  position: relative;
  width: 100%;
  z-index: 2;
  padding: 4.5rem 0 5.5rem;
}

.hero-slide {
  display: none;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
  animation: slideFadeIn 0.55s ease forwards;
}

.hero-slide.active {
  display: grid;
}

@keyframes slideFadeIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 168, 232, 0.15);
  border: 1px solid rgba(0, 168, 232, 0.35);
  color: var(--td-cyan-400);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2rem, 3.6vw, 3.15rem);
  color: var(--td-white);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-title span {
  background: linear-gradient(90deg, var(--td-cyan-400), #7dd3fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--td-slate-300);
  margin-bottom: 2rem;
  max-width: 640px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.86rem;
  color: var(--td-slate-300);
}

.hero-trust-item svg {
  width: 20px;
  height: 20px;
  color: var(--td-cyan-400);
}

/* Sağ Görsel / İnteraktif Teknoloji Kartı */
.hero-visual-card {
  background: rgba(15, 41, 74, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.45);
  position: relative;
}

.hero-visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.15rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: #34d399;
  background: rgba(16, 185, 129, 0.14);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

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

.hero-metric-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.1rem;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.hero-metric-box:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 168, 232, 0.45);
}

.hero-metric-box h4 {
  color: var(--td-cyan-400);
  font-size: 1.35rem;
  margin-bottom: 0.2rem;
}

.hero-metric-box p {
  font-size: 0.82rem;
  color: var(--td-slate-300);
  line-height: 1.35;
}

/* Slider Kontrolleri */
.slider-controls {
  position: absolute;
  bottom: 1.75rem;
  left: 0;
  right: 0;
  z-index: 5;
}

.slider-controls-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.slider-dots {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.slider-dot {
  height: 8px;
  width: 28px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.22);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.slider-dot.active {
  width: 48px;
  background: var(--td-cyan-400);
}

.slider-arrows {
  display: flex;
  gap: 0.5rem;
}

.slider-arrow {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  color: var(--td-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-arrow:hover {
  background: var(--td-cyan-500);
  border-color: var(--td-cyan-500);
}

/* ==========================================================================
   ALT SAYFA BAŞLIK ALANI (PAGE HERO / BREADCRUMB)
   ========================================================================== */
.page-hero {
  background: linear-gradient(135deg, var(--td-navy-950) 0%, var(--td-navy-900) 60%, var(--td-navy-800) 100%);
  color: var(--td-white);
  padding: 4rem 0 3.75rem;
  position: relative;
  overflow: hidden;
  border-bottom: 4px solid var(--td-blue-600);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 85% 30%, rgba(0, 168, 232, 0.2) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 850px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--td-slate-300);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--td-cyan-400);
  font-weight: 500;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--td-slate-500);
}

.page-hero h1 {
  color: var(--td-white);
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  margin-bottom: 0.85rem;
}

.page-hero p.lead {
  color: var(--td-slate-300);
  font-size: 1.08rem;
  line-height: 1.65;
}

/* ==========================================================================
   GENEL BÖLÜM (SECTION) STİLLERİ
   ========================================================================== */
.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3.25rem 0;
}

.bg-light {
  background-color: var(--td-slate-50);
}

.bg-navy {
  background: linear-gradient(135deg, var(--td-navy-950) 0%, var(--td-navy-900) 100%);
  color: var(--td-white);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--td-blue-600);
  background: var(--td-blue-50);
  border: 1px solid rgba(0, 98, 204, 0.18);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.bg-navy .section-eyebrow {
  background: rgba(0, 168, 232, 0.15);
  color: var(--td-cyan-400);
  border-color: rgba(0, 168, 232, 0.3);
}

.section-title {
  font-size: clamp(1.65rem, 2.6vw, 2.35rem);
  margin-bottom: 1rem;
}

.bg-navy .section-title {
  color: var(--td-white);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--td-slate-600);
}

.bg-navy .section-subtitle {
  color: var(--td-slate-300);
}

/* ==========================================================================
   KARTLAR VE IZGARALAR (SOLUTIONS, SERVICES, FEATURES)
   ========================================================================== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.85rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--td-blue-600), var(--td-cyan-500));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 98, 204, 0.3);
}

.card:hover::after {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--td-blue-50) 0%, var(--td-cyan-100) 100%);
  color: var(--td-blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  transition: all var(--transition-normal);
}

.card:hover .card-icon {
  background: linear-gradient(135deg, var(--td-blue-600) 0%, var(--td-cyan-500) 100%);
  color: var(--td-white);
  transform: scale(1.06);
  box-shadow: 0 8px 18px rgba(0, 98, 204, 0.25);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--td-navy-900);
}

.card p {
  color: var(--td-slate-600);
  font-size: 0.95rem;
  margin-bottom: 1.4rem;
  flex: 1;
}

.card-list {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.card-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--td-slate-700);
  font-weight: 500;
}

.card-list li svg {
  width: 16px;
  height: 16px;
  color: var(--td-blue-600);
  flex-shrink: 0;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--td-blue-600);
  margin-top: auto;
}

.card-link svg {
  width: 17px;
  height: 17px;
  transition: transform var(--transition-fast);
}

.card:hover .card-link svg {
  transform: translateX(4px);
}

/* ==========================================================================
   İSTATİSTİK VE GÜVEN BANDI
   ========================================================================== */
.stats-banner {
  background: linear-gradient(90deg, var(--td-navy-900) 0%, var(--td-blue-700) 100%);
  color: var(--td-white);
  padding: 3.25rem 0;
  position: relative;
}

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

.stat-item {
  padding: 0.5rem 1rem;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--td-cyan-400);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--td-slate-200);
}

/* ==========================================================================
   ALT SAYFA DETAY DÜZENİ (SIDEBAR + İÇERİK)
   ========================================================================== */
.detail-layout {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 2.75rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 105px;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.sidebar-widget {
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  font-size: 1.05rem;
  color: var(--td-navy-900);
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--td-slate-100);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-title svg {
  width: 19px;
  height: 19px;
  color: var(--td-blue-600);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0.95rem;
  border-radius: var(--radius-sm);
  color: var(--td-slate-700);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.sidebar-nav a:hover {
  background: var(--td-slate-100);
  color: var(--td-blue-600);
}

.sidebar-nav a.active {
  background: var(--td-blue-600);
  color: var(--td-white);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0, 98, 204, 0.25);
}

.sidebar-nav a svg {
  width: 16px;
  height: 16px;
}

.sidebar-cta {
  background: linear-gradient(135deg, var(--td-navy-900) 0%, var(--td-blue-700) 100%);
  color: var(--td-white);
  border-radius: var(--radius-lg);
  padding: 1.85rem 1.5rem;
  box-shadow: var(--shadow-md);
}

.sidebar-cta h4 {
  color: var(--td-white);
  font-size: 1.18rem;
  margin-bottom: 0.65rem;
}

.sidebar-cta p {
  font-size: 0.9rem;
  color: var(--td-slate-200);
  margin-bottom: 1.25rem;
}

.sidebar-cta-contact {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.35rem;
  font-size: 0.9rem;
}

.sidebar-cta-contact a {
  color: var(--td-cyan-400);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Detay İçerik Alanı */
.content-panel {
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  box-shadow: var(--shadow-sm);
}

.content-panel h2 {
  font-size: 1.75rem;
  margin-bottom: 1.1rem;
  color: var(--td-navy-900);
}

.content-panel h3 {
  font-size: 1.3rem;
  margin: 2rem 0 0.85rem;
  color: var(--td-navy-800);
}

.content-panel p {
  margin-bottom: 1.15rem;
  color: var(--td-slate-700);
  font-size: 1rem;
}

.feature-box-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 1.75rem 0;
}

.feature-box {
  background: var(--td-slate-50);
  border: 1px solid var(--td-slate-200);
  border-left: 4px solid var(--td-blue-600);
  border-radius: var(--radius-md);
  padding: 1.35rem;
}

.feature-box h4 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-box h4 svg {
  width: 20px;
  height: 20px;
  color: var(--td-blue-600);
  flex-shrink: 0;
}

.feature-box p {
  font-size: 0.9rem;
  margin-bottom: 0;
  color: var(--td-slate-600);
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem 1.5rem;
  margin: 1.5rem 0;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--td-slate-700);
}

.check-list li svg {
  width: 20px;
  height: 20px;
  color: var(--td-success);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Süreç Adımları (Process Steps) */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 2rem 0;
}

.step-card {
  background: var(--td-blue-50);
  border: 1px solid rgba(0, 98, 204, 0.15);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  position: relative;
}

.step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--td-blue-600);
  color: var(--td-white);
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
}

.step-card h4 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.step-card p {
  font-size: 0.85rem;
  margin-bottom: 0;
  color: var(--td-slate-600);
}

/* ==========================================================================
   İŞ ORTAKLARI VE SERTİFİKA ROZETLERİ
   ========================================================================== */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1.25rem;
}

.partner-box {
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: all var(--transition-fast);
  min-height: 120px;
}

.partner-box:hover {
  border-color: var(--td-blue-600);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.partner-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--td-navy-900);
  margin-bottom: 0.25rem;
}

.partner-tag {
  font-size: 0.76rem;
  color: var(--td-slate-500);
  font-weight: 600;
}

/* ==========================================================================
   AKORDİYON (SSS / FAQ)
   ========================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.open {
  border-color: var(--td-blue-600);
  box-shadow: var(--shadow-sm);
}

.faq-trigger {
  width: 100%;
  background: none;
  border: none;
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--td-navy-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
}

.faq-trigger svg {
  width: 20px;
  height: 20px;
  color: var(--td-blue-600);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.open .faq-trigger svg {
  transform: rotate(180deg);
}

.faq-body {
  display: none;
  padding: 0 1.5rem 1.35rem;
  color: var(--td-slate-600);
  font-size: 0.96rem;
  border-top: 1px solid var(--td-slate-100);
  padding-top: 1rem;
}

.faq-item.open .faq-body {
  display: block;
}

/* ==========================================================================
   İLETİŞİM SAYFASI VE FORMLAR
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 2.5rem;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--td-navy-950) 0%, var(--td-navy-800) 100%);
  color: var(--td-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.contact-info-card h3 {
  color: var(--td-white);
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  margin-top: 2rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(0, 168, 232, 0.16);
  border: 1px solid rgba(0, 168, 232, 0.35);
  color: var(--td-cyan-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

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

.contact-info-item h4 {
  color: var(--td-white);
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.contact-info-item p,
.contact-info-item a {
  color: var(--td-slate-300);
  font-size: 0.92rem;
}

.contact-info-item a:hover {
  color: var(--td-cyan-400);
}

.form-card {
  background: var(--td-white);
  border: 1px solid var(--td-slate-200);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

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

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--td-navy-900);
  margin-bottom: 0.45rem;
}

.form-control {
  width: 100%;
  padding: 0.78rem 1rem;
  border: 1px solid var(--td-slate-300);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--td-slate-800);
  background: var(--td-slate-50);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--td-blue-600);
  background: var(--td-white);
  box-shadow: 0 0 0 3px rgba(0, 98, 204, 0.14);
}

textarea.form-control {
  min-height: 125px;
  resize: vertical;
}

/* ==========================================================================
   ALT BİLGİ (FOOTER)
   ========================================================================== */
.site-footer {
  background: var(--td-navy-950);
  color: var(--td-slate-300);
  padding-top: 4.5rem;
  border-top: 4px solid var(--td-blue-600);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.1fr 1.1fr 1.2fr;
  gap: 2.25rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
  margin: 1rem 0 1.35rem;
  font-size: 0.9rem;
  color: var(--td-slate-400);
  line-height: 1.65;
}

.footer-certs {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.footer-cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--td-cyan-400);
}

.footer-col h4 {
  color: var(--td-white);
  font-size: 1.02rem;
  margin-bottom: 1.2rem;
  position: relative;
  padding-bottom: 0.6rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--td-cyan-500);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--td-slate-400);
  font-size: 0.88rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-links a:hover {
  color: var(--td-cyan-400);
  transform: translateX(3px);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.88rem;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  color: var(--td-slate-400);
}

.footer-contact-list svg {
  width: 17px;
  height: 17px;
  color: var(--td-cyan-400);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-list a {
  color: var(--td-slate-300);
}

.footer-contact-list a:hover {
  color: var(--td-cyan-400);
}

.footer-bottom {
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.84rem;
  color: var(--td-slate-400);
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-legal-links a {
  color: var(--td-slate-400);
}

.footer-legal-links a:hover {
  color: var(--td-white);
}

/* ==========================================================================
   YÜZEN WHATSAPP & HIZLI TEKLİF MODAL BİLEŞENLERİ
   ========================================================================== */
.floating-widgets {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.whatsapp-float {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--td-whatsapp);
  color: var(--td-white);
  padding: 0.75rem 1.15rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-fast);
}

.whatsapp-float:hover {
  color: var(--td-white);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.55);
}

.whatsapp-float svg {
  width: 22px;
  height: 22px;
}

/* Modal (Teklif & Destek Talebi) */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 16, 33, 0.72);
  backdrop-filter: blur(5px);
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-dialog {
  background: var(--td-white);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  padding: 2.25rem;
  box-shadow: var(--shadow-xl);
  position: relative;
  max-height: 92vh;
  overflow-y: auto;
  animation: slideFadeIn 0.25s ease forwards;
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--td-slate-200);
  background: var(--td-slate-50);
  color: var(--td-slate-600);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--td-slate-200);
  color: var(--td-navy-900);
}

/* Bildirim Kutusu (Alert / Toast) */
.alert-success {
  display: none;
  background: #ecfdf5;
  border: 1px solid #10b981;
  color: #065f46;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-top: 1rem;
  font-weight: 500;
}

/* ==========================================================================
   DUYARLI (RESPONSIVE) TASARIM
   ========================================================================== */
@media (max-width: 1100px) {
  .hero-slide {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }
  .grid-4, .stats-grid, .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .detail-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    order: 2;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 920px) {
  .topbar-right {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .main-nav {
    position: fixed;
    top: 82px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--td-white);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    overflow-y: auto;
    display: none;
    border-top: 1px solid var(--td-slate-200);
    z-index: 1050;
  }
  .main-nav.mobile-open {
    display: flex;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 0.85rem 1rem;
  }
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--td-slate-200);
    margin-left: 1rem;
    padding: 0.35rem 0 0.35rem 0.5rem;
  }
}

@media (max-width: 680px) {
  .grid-2, .grid-3, .grid-4, .stats-grid, .steps-grid, .feature-box-grid, .check-list, .contact-grid, .form-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    padding-bottom: 1.25rem;
  }
  .stat-item:last-child {
    border-bottom: none;
  }
  .content-panel {
    padding: 1.65rem;
  }
  .whatsapp-float span {
    display: none;
  }
  .whatsapp-float {
    padding: 0.85rem;
  }
}