/* ==========================================================================
   BAHAR PROJECTS & BAHAR BAŞIBEYAZ PROJE OFİSİ
   Architectural Monochrome Design System (Siyah, Koyu Gri, Açık Gri & Beyaz)
   ========================================================================== */

:root {
  /* Renk Paleti - Monokrom & Mimari */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f4f4f5;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  
  --text-primary: #09090b;       /* Saf Siyah / Derin Antrasit Başlıklar */
  --text-secondary: #27272a;     /* Koyu Gri Okunaklı Gövde Metni */
  --text-muted: #71717a;         /* Orta Gri Yardımcı Bilgiler */
  --text-light: #a1a1aa;         /* Açık Gri */
  
  /* Monokrom & Mimari Vurgu Renkleri */
  --accent-primary: #18181b;     /* Asil Siyah / Karbon */
  --accent-primary-hover: #27272a;
  --accent-secondary: #3f3f46;   /* Koyu Çelik Gri */
  --accent-dark: #09090b;
  --accent-light: #f4f4f5;       /* Açık Platin Gri */
  
  --accent-gradient: linear-gradient(135deg, #09090b 0%, #3f3f46 100%);
  --accent-gradient-silver: linear-gradient(135deg, #18181b 0%, #52525b 100%);
  --accent-gradient-subtle: linear-gradient(135deg, #f4f4f5 0%, #e4e4e7 100%);
  --bg-light-gradient: linear-gradient(180deg, #ffffff 0%, #f8f8fa 100%);
  
  --border-light: #e4e4e7;
  --border-medium: #d4d4d8;
  --border-dark: #27272a;
  --border-focus: #18181b;
  --border-glow: rgba(24, 24, 27, 0.15);
  
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.07), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.09), 0 0 1px 1px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 20px 35px -10px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.04);
  
  --glass-bg: rgba(255, 255, 255, 0.94);
  --glass-blur: blur(20px);
  --glass-border: 1px solid rgba(228, 228, 231, 0.9);
  
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', var(--font-main);
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  --container-width: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --------------------------------------------------------------------------
   Tipografi
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 4.5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.2rem; font-weight: 600; }
h5 { font-size: 1.05rem; }
h6 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent-primary); }

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-light);
  color: var(--text-primary);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-xs);
}

.section-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-primary);
}

.section-title {
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}


/* --------------------------------------------------------------------------
   Navbar (Header - Mat Antrasit Mimari Bar Tasarımı)
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(9, 9, 11, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.65), 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.scrolled {
  background: rgba(6, 6, 8, 0.98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.85);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 94px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.scrolled .navbar {
  height: 64px;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo img {
  height: 78px;
  width: auto;
  max-width: 280px;
  object-fit: contain;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.scrolled .brand-logo img {
  height: 42px;
}

.header.scrolled .nav-link {
  font-size: 0.88rem;
  padding: 2px 0;
}

.header.scrolled .nav-phone-link {
  padding: 5px 10px;
  font-size: 0.78rem;
}

.header.scrolled .btn-nav-cta {
  padding: 6px 14px;
  font-size: 0.76rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  background: transparent;
  border: none;
}

.nav-menu li {
  display: flex;
  align-items: center;
}

.nav-menu li:not(:last-child)::after {
  content: '•';
  color: #52525b;
  font-size: 0.8rem;
  margin: 0 12px;
  line-height: 1;
  user-select: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #a1a1aa;
  padding: 4px 0;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
  white-space: nowrap;
}

.nav-link:hover {
  color: #ffffff;
  background: transparent;
}

.nav-link.active {
  color: #ffffff;
  font-weight: 800;
  background: transparent;
  box-shadow: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.nav-phone-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #d4d4d8;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 7px 12px;
  border-radius: 4px;
  border: 1px solid #27272a;
  background: rgba(255, 255, 255, 0.03);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-phone-link i {
  color: #a1a1aa;
  font-size: 0.78rem;
  transition: color 0.2s ease;
}

.nav-phone-link:hover {
  color: #ffffff;
  border-color: #52525b;
  background: rgba(255, 255, 255, 0.06);
}

.nav-phone-link:hover i {
  color: #ffffff;
}

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  color: #09090b;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  border-radius: 4px;
  text-decoration: none;
  border: 1px solid #ffffff;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-nav-cta:hover {
  background: transparent;
  color: #ffffff;
  border-color: #ffffff;
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  color: #ffffff;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.mobile-toggle:hover,
.mobile-toggle:active {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
  transform: scale(1.02);
}

.mobile-toggle-bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 4px;
  width: 16px;
  height: 12px;
}

.mobile-toggle-bars .bar {
  display: block;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all 0.25s ease;
}

.mobile-toggle-bars .bar-1 {
  width: 16px;
}

.mobile-toggle-bars .bar-2 {
  width: 11px;
}

.mobile-toggle:hover .mobile-toggle-bars .bar-2 {
  width: 16px;
}

.mobile-toggle-text {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   Butonlar (Monokrom Siyah / Gri)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--accent-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
  background: #000000;
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: #f4f4f5;
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 0.88rem;
  border-radius: 8px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.02rem;
  border-radius: var(--radius-md);
}

/* ==========================================================================
   YENİ NESİL ULTRA-LÜKS HERO SLIDER BÖLÜMÜ (%70 VIEWPORT HEIGHT)
   ========================================================================== */
.hero-slider-section {
  position: relative;
  min-height: 70vh;
  min-height: 70dvh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #0c0c0e;
  overflow: hidden;
  border-bottom: 1px solid #27272a;
}

.hero-slider-container {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  min-height: 440px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  display: flex;
  align-items: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s ease;
  z-index: 1;
}

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

.hero-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center center;
  transform: scale(1.06);
  transition: transform 6.5s cubic-bezier(0.1, 1, 0.1, 1);
  will-change: transform;
  filter: brightness(1.05) contrast(1.04) saturate(1.06);
}

.hero-slide.active .hero-slide-bg {
  transform: scale(1);
}

.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 10, 12, 0.2) 0%, rgba(10, 10, 12, 0.05) 45%, rgba(10, 10, 12, 0.72) 100%),
              linear-gradient(90deg, rgba(10, 10, 12, 0.68) 0%, rgba(10, 10, 12, 0.32) 48%, rgba(10, 10, 12, 0.02) 100%);
  pointer-events: none;
}

.hero-slide .container {
  position: relative;
  z-index: 3;
  width: 100%;
}

.hero-slide-content {
  position: relative;
  max-width: 820px;
  padding: 28px 0 20px;
  text-align: left;
}

.hero-slide-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  background: transparent;
  border: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  color: #f1f5f9;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  box-shadow: none;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.9);
  animation: pulse-dot-anim 2s infinite;
}

@keyframes pulse-dot-anim {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(255, 255, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

.hero-slide-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.1vw, 2.75rem);
  font-weight: 800;
  line-height: 1.14;
  color: #ffffff !important;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.95), 0 2px 8px rgba(0, 0, 0, 0.95);
}

.gradient-text-light {
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
  background: none !important;
  font-weight: 800;
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.95), 0 2px 8px rgba(0, 0, 0, 0.95);
}

.hero-slide-desc {
  font-size: clamp(0.88rem, 1.05vw, 1rem);
  line-height: 1.5;
  color: #e2e8f0;
  margin-bottom: 16px;
  max-width: 620px;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.95), 0 1px 4px rgba(0, 0, 0, 0.95);
}

.hero-slide-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.btn-hero-primary {
  background: #ffffff;
  color: #09090b;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 6px 25px rgba(255, 255, 255, 0.25);
  border: 1px solid #ffffff;
}

.btn-hero-primary:hover {
  background: #f8fafc;
  color: #000000;
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(255, 255, 255, 0.4);
}

.btn-hero-glass {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: #ffffff;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.btn-hero-glass:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.5);
  color: #ffffff;
  transform: translateY(-3px);
}

.btn-hero-wa {
  background: #25d366;
  color: #ffffff;
  font-weight: 700;
  padding: 12px 26px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.35);
}

.btn-hero-wa:hover {
  background: #20ba5a;
  color: #ffffff;
  transform: translateY(-3px);
}

.hero-slide-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-tag-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #e2e8f0;
  background: rgba(12, 12, 14, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 5px 14px;
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-tag-item i {
  color: #ffffff;
}

/* Slider Navigasyon & Oklar */
.hero-slider-nav {
  position: absolute;
  right: 40px;
  bottom: 24px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
}

.slider-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s ease;
}

.slider-arrow:hover {
  background: #ffffff;
  color: #09090b;
  border-color: #ffffff;
  transform: scale(1.06);
}

.slider-dots {
  display: flex;
  gap: 10px;
  align-items: center;
}

.slider-dot {
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  color: #71717a;
  font-weight: 700;
  font-size: 0.82rem;
  font-family: var(--font-heading);
  transition: color 0.3s ease;
}

.slider-dot.active {
  color: #ffffff;
}

.dot-line {
  width: 26px;
  height: 2px;
  background: rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  transition: width 0.3s ease;
}

.slider-dot.active .dot-line {
  width: 42px;
}

.slider-dot.active .dot-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: #ffffff;
  animation: slideTimer 6s linear forwards;
}

@keyframes slideTimer {
  0% { width: 0%; }
  100% { width: 100%; }
}

/* Entegre Canlı İstatistik Bandı */
.hero-stats-bar {
  position: relative;
  z-index: 5;
  background: rgba(18, 18, 21, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 15px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 15%;
  height: 70%;
  width: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.stat-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-number-wrapper {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.stat-number {
  font-size: 1.85rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
  font-family: var(--font-heading);
}

.stat-suffix {
  font-size: 1.25rem;
  font-weight: 700;
  color: #a1a1aa;
}

.stat-label {
  font-size: 0.82rem;
  color: #a1a1aa;
  margin-top: 2px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Hizmetler Bölümü (Monokrom Kartlar)
   -------------------------------------------------------------------------- */
.services-section {
  padding: 48px 0 80px;
  position: relative;
  background: #ffffff;
}

.services-grid, .services-grid.five-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent-primary);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-dark);
  box-shadow: var(--shadow-hover);
}

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

.service-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.service-number {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: #a1a1aa;
  letter-spacing: 0.05em;
}

.service-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: #f4f4f5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: #18181b;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.service-card:hover .service-icon-box {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
  transform: scale(1.08);
}

.service-title {
  margin-bottom: 14px;
  font-size: 1.3rem;
  color: var(--text-primary);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: auto;
  transition: var(--transition);
}

.service-link i {
  transition: var(--transition);
}

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

/* --------------------------------------------------------------------------
   Hakkımızda / Tanıtım Özeti Bölümü
   -------------------------------------------------------------------------- */
.about-preview-section {
  padding: 65px 0;
  position: relative;
  background: #f8fafc;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.about-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-main-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  aspect-ratio: 1 / 1;
}

.about-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
  transition: var(--transition-slow);
}

.about-preview-grid:hover .about-main-image img {
  transform: scale(1.03);
}

.about-badge-card {
  position: absolute;
  bottom: -25px;
  right: 70px;
  left: auto;
  margin: 0;
  width: max-content;
  max-width: calc(100% - 30px);
  background: #ffffff;
  border: 1px solid var(--border-medium);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.about-badge-card i {
  font-size: 1.4rem;
  color: var(--accent-primary);
}

.about-badge-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.about-badge-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.about-features {
  margin: 28px 0 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.about-feature-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #f4f4f5;
  color: #18181b;
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.about-feature-text {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   İşbirliği ve İletişim İlkeleri Bölümü
   -------------------------------------------------------------------------- */
.collab-section {
  padding: 100px 0;
  background: #ffffff;
  position: relative;
}

.collab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.collab-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.collab-card {
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: var(--transition);
}

.collab-card:hover {
  background: #ffffff;
  border-color: var(--border-dark);
  box-shadow: var(--shadow-md);
  transform: translateX(8px);
}

.collab-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: #f4f4f5;
  color: #18181b;
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.collab-card-content h4 {
  margin-bottom: 6px;
  color: var(--text-primary);
}

.collab-card-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   CTA / Hızlı İletişim Bandı (Gri & Siyah)
   -------------------------------------------------------------------------- */
.cta-banner {
  padding: 80px 0;
  background: #f4f4f5;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.cta-box {
  background: #ffffff;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: var(--shadow-md);
}

.cta-text h2 {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.cta-text p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.cta-phone-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  background: #f4f4f5;
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 700;
  transition: var(--transition);
}

.cta-phone-badge:hover {
  background: #ffffff;
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* --------------------------------------------------------------------------
   Sayfa Başlığı / Hero (İç Sayfalar İçin)
   -------------------------------------------------------------------------- */
.page-header {
  position: relative;
  padding: 80px 0 60px;
  background: #f4f4f5;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-light);
}

.page-header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(244, 244, 245, 0.97) 100%);
}

.page-header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 500;
}

.breadcrumbs a {
  color: var(--text-secondary);
}

.breadcrumbs a:hover {
  color: var(--accent-primary);
}

.breadcrumbs span.current {
  color: var(--accent-primary);
  font-weight: 700;
}

.page-header-title {
  margin-bottom: 16px;
  color: var(--text-primary);
}

.page-header-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Form Tasarımı (Teklif & İletişim Formları)
   -------------------------------------------------------------------------- */
.form-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-lg);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-label .required {
  color: #18181b;
}

.form-control {
  width: 100%;
  background: #f4f4f5;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--accent-primary);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(24, 24, 27, 0.08);
}

.form-control::placeholder {
  color: #a1a1aa;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2318181b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  cursor: pointer;
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

/* Dosya Yükleme Dropzone (Gri & Siyah) */
.file-dropzone {
  border: 2px dashed #a1a1aa;
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  background: #fafafa;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.file-dropzone:hover, .file-dropzone.dragover {
  border-color: #18181b;
  background: #f4f4f5;
}

.file-dropzone-icon {
  font-size: 2.2rem;
  color: #18181b;
  margin-bottom: 10px;
}

.file-dropzone-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.file-dropzone-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.file-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-list-preview {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-preview-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
}

.file-remove-btn {
  color: #18181b;
  cursor: pointer;
  padding: 4px;
}

/* --------------------------------------------------------------------------
   Footer (Derin Siyah / Mat Antrasit Mimari - Kompakt)
   -------------------------------------------------------------------------- */
.footer {
  background: #0c0c0e;
  border-top: 1px solid #27272a;
  padding: 48px 0 20px;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.1fr 1.1fr;
  gap: 32px;
  margin-bottom: 30px;
}

.footer-brand p {
  margin: 12px 0 16px;
  color: #a1a1aa;
  font-size: 0.88rem;
  line-height: 1.55;
  max-width: 320px;
}

.footer-logo img {
  height: 76px;
  width: auto;
  max-width: 280px;
  object-fit: contain;
}

.footer-socials {
  display: flex;
  gap: 10px;
}

.footer-social-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #18181b;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 0.85rem;
  transition: var(--transition);
  border: 1px solid #27272a;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.footer-social-btn:hover {
  background: #ffffff;
  color: #09090b;
  transform: translateY(-2px);
  border-color: #ffffff;
}

.footer-heading {
  font-size: 0.96rem;
  margin-bottom: 14px;
  color: #ffffff;
  position: relative;
  padding-bottom: 6px;
  font-weight: 700;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: #ffffff;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.footer-link {
  color: #a1a1aa;
  font-size: 0.86rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  font-weight: 400;
  text-decoration: none;
}

.footer-link:hover {
  color: #ffffff;
  transform: translateX(3px);
}

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  color: #a1a1aa;
  font-size: 0.86rem;
}

.footer-contact-item a {
  color: #d4d4d8;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-contact-item a:hover {
  color: #ffffff;
}

.footer-contact-item i {
  color: #ffffff;
  margin-top: 3px;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid #1f1f23;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: #71717a;
}

.footer-bottom a {
  color: #a1a1aa;
  text-decoration: none;
}

.footer-bottom a:hover {
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   Sabit WhatsApp & İletişim Butonları
   -------------------------------------------------------------------------- */
.floating-widgets {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.whatsapp-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  position: relative;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
  color: #ffffff;
}

.whatsapp-pulse {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.4);
  animation: pulse-ring 2s infinite;
  pointer-events: none;
}

/* Toast Bildirimleri */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: #ffffff;
  color: #09090b;
  padding: 16px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
  min-width: 320px;
  max-width: 450px;
  border: 1px solid var(--border-medium);
  border-left: 5px solid #18181b;
  transform: translateX(120%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
  transform: translateX(0);
}

.toast.toast-success {
  border-left-color: #18181b;
}

.toast.toast-error {
  border-left-color: #71717a;
}

.toast-icon {
  font-size: 1.3rem;
  color: #18181b;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 0; }
  100% { transform: scale(0.95); opacity: 0; }
}

/* ==========================================================================
   YENİ PREMİUM HİZMETLERİMİZ SAYFASI TASARIMI
   ========================================================================== */
.services-hero-section {
  position: relative;
  padding: 44px 0 34px;
  background: #0e0f13;
  border-bottom: 1px solid #27272a;
  overflow: hidden;
}

.services-hero-content {
  text-align: center;
  max-width: 1050px;
  margin: 0 auto;
}

.services-hero-section .breadcrumbs {
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.services-hero-section .breadcrumbs a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.services-hero-section .breadcrumbs a:hover {
  opacity: 1;
}

.services-hero-section .breadcrumbs .current {
  color: #ffffff;
  font-weight: 600;
}

.services-hero-section .breadcrumbs i {
  color: #a1a1aa;
  font-size: 0.68rem;
  margin: 0 4px;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  background: transparent !important;
  border: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  box-shadow: none !important;
}

.services-hero-section .hero-pill-badge,
.about-hero-section .hero-pill-badge,
.contact-hero-section .hero-pill-badge,
.quote-hero-section .hero-pill-badge {
  background: transparent !important;
  border: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  color: #ffffff;
  padding: 0;
  box-shadow: none !important;
}

.pulse-dot,
.services-hero-section .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.9);
  display: inline-block;
  animation: pulse-dot-anim 2s infinite;
}

.services-hero-title {
  font-size: clamp(1.35rem, 2.15vw, 2.05rem);
  font-weight: 800;
  line-height: 1.2;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

@media (min-width: 992px) {
  .services-hero-title {
    white-space: nowrap;
  }
}

.services-hero-desc {
  font-size: 0.98rem;
  line-height: 1.65;
  color: #a1a1aa;
  margin-bottom: 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.services-feature-chips {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.feature-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: #18181b;
  border: 1px solid #27272a;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: #d4d4d8;
  transition: var(--transition);
}

.feature-chip:hover {
  border-color: #52525b;
  color: #ffffff;
  background: #27272a;
}

.feature-chip i {
  color: #ffffff;
  font-size: 0.76rem;
}

/* Mimari Hizmet Kartları (Genişletilmiş & Lüks) */
.arch-services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.arch-service-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 38px 32px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.arch-service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: #09090b;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.arch-service-card:hover {
  transform: translateY(-8px);
  border-color: #18181b;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.12);
}

.arch-service-card:hover::before {
  opacity: 1;
}

.arch-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.arch-card-number {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: #a1a1aa;
  letter-spacing: 0.05em;
}

.arch-card-icon {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: #f4f4f5;
  color: #09090b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  border: 1px solid var(--border-medium);
  transition: all 0.3s ease;
}

.arch-service-card:hover .arch-card-icon {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
  transform: scale(1.06);
}

.arch-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #09090b;
  margin-bottom: 8px;
  line-height: 1.3;
}

.arch-card-subtitle {
  font-size: 0.85rem;
  font-weight: 600;
  color: #71717a;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.arch-card-desc {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.arch-card-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--border-light);
  padding-top: 18px;
}

.arch-card-features li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.45;
}

.arch-card-features li i {
  color: #09090b;
  font-size: 0.8rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.arch-card-footer {
  margin-top: auto;
}

.btn-service-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 18px;
  background: #f4f4f5;
  color: #09090b;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-service-action i {
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}

.arch-service-card:hover .btn-service-action {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
}

.arch-service-card:hover .btn-service-action i {
  transform: translateX(4px);
}

/* Mühendislik Süreci (Workflow) */
.engineering-workflow-section {
  padding: 90px 0;
  background: #f8f8fa;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.workflow-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.workflow-title {
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  font-weight: 800;
  color: #09090b;
  margin-bottom: 12px;
}

.workflow-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.workflow-step-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}

.workflow-step-card:hover {
  transform: translateY(-4px);
  border-color: #18181b;
  box-shadow: var(--shadow-md);
}

.workflow-step-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: #e4e4e7;
  line-height: 1;
  margin-bottom: 14px;
  transition: color 0.3s ease;
}

.workflow-step-card:hover .workflow-step-number {
  color: #09090b;
}

.workflow-step-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #09090b;
  margin-bottom: 10px;
}

.workflow-step-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* Güvence & Yazılım Standartları Bandı */
.engineering-standards-banner {
  padding: 60px 0;
  background: #0c0c0e;
  color: #ffffff;
  border-top: 1px solid #27272a;
  border-bottom: 1px solid #27272a;
}

.standards-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 36px;
  align-items: center;
}

.standards-left h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
  line-height: 1.3;
}

.standards-left p {
  color: #a1a1aa;
  font-size: 0.98rem;
  line-height: 1.65;
}

.standards-right {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.standard-badge {
  background: #18181b;
  border: 1px solid #27272a;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.standard-badge i {
  font-size: 1.4rem;
  color: #ffffff;
}

.standard-badge-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.2;
}

.standard-badge-sub {
  font-size: 0.76rem;
  color: #a1a1aa;
  margin-top: 2px;
}

/* ==========================================================================
   YENİ PREMİUM İLETİŞİM SAYFASI TASARIMI
   ========================================================================== */
.contact-hero-section {
  position: relative;
  padding: 44px 0 34px;
  background: #0e0f13;
  border-bottom: 1px solid #27272a;
  overflow: hidden;
}

.contact-hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.contact-hero-section .breadcrumbs {
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.contact-hero-section .breadcrumbs a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  opacity: 0.9;
}

.contact-hero-section .breadcrumbs a:hover {
  opacity: 1;
}

.contact-hero-section .breadcrumbs .current {
  color: #ffffff;
  font-weight: 600;
}

.contact-hero-section .breadcrumbs i {
  color: #a1a1aa;
  font-size: 0.68rem;
  margin: 0 4px;
}

.contact-hero-title {
  font-size: clamp(1.75rem, 2.7vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.contact-hero-desc {
  font-size: 0.98rem;
  line-height: 1.65;
  color: #a1a1aa;
  margin-bottom: 20px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* 4'lü İletişim Kanalları Izgarası */
.contact-channels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}

.contact-channel-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.contact-channel-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: #09090b;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.contact-channel-card:hover {
  transform: translateY(-5px);
  border-color: #18181b;
  box-shadow: 0 14px 28px -10px rgba(0, 0, 0, 0.1);
}

.contact-channel-card:hover::before {
  opacity: 1;
}

.channel-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #f4f4f5;
  color: #09090b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
  border: 1px solid var(--border-medium);
  transition: all 0.3s ease;
}

.contact-channel-card:hover .channel-icon {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
}

.channel-title {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #71717a;
  margin-bottom: 4px;
}

.channel-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: #09090b;
  margin-bottom: 6px;
  line-height: 1.3;
}

.channel-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 14px;
}

.channel-action {
  margin-top: auto;
  font-size: 0.84rem;
  font-weight: 700;
  color: #09090b;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}

.contact-channel-card:hover .channel-action {
  gap: 10px;
}

/* Ana 2-Kolonlu İletişim Düzeni */
.contact-main-split {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-modern-form {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 38px 34px;
  box-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.06);
}

.contact-form-head {
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-light);
}

.contact-form-head h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: #09090b;
  margin-bottom: 6px;
}

.contact-form-head p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.contact-map-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
}

.contact-map-frame {
  width: 100%;
  height: 380px;
  position: relative;
  background: #f4f4f5;
}

.contact-map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.contact-map-details {
  padding: 24px 28px;
  background: #fafafa;
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.office-info-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.office-info-row i {
  color: #09090b;
  font-size: 0.95rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.office-info-row strong {
  color: #09090b;
}

.btn-map-directions {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 18px;
  background: #09090b;
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
  margin-top: 6px;
}

.btn-map-directions:hover {
  background: #27272a;
  transform: translateY(-1px);
}

/* ==========================================================================
   YENİ PREMİUM HAKKIMIZDA SAYFASI TASARIMI
   ========================================================================== */
.about-hero-section {
  position: relative;
  padding: 44px 0 34px;
  background: #0e0f13;
  border-bottom: 1px solid #27272a;
  overflow: hidden;
}

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

.about-hero-section .breadcrumbs {
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.about-hero-section .breadcrumbs a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  opacity: 0.9;
}

.about-hero-section .breadcrumbs a:hover {
  opacity: 1;
}

.about-hero-section .breadcrumbs .current {
  color: #ffffff;
  font-weight: 600;
}

.about-hero-section .breadcrumbs i {
  color: #a1a1aa;
  font-size: 0.68rem;
  margin: 0 4px;
}

.about-hero-title {
  font-size: clamp(1.5rem, 2.4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.about-hero-desc {
  font-size: 0.98rem;
  line-height: 1.65;
  color: #a1a1aa;
  margin-bottom: 20px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* Profil & Kurumsal Bölüm */
.about-profile-grid {
  display: grid;
  grid-template-columns: minmax(460px, 540px) 1fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 80px;
}

.about-founder-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-medium);
  background: #09090b;
  width: 100%;
  max-width: 540px;
  aspect-ratio: 6 / 7;
  max-height: 620px;
}

.about-founder-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-founder-card:hover img {
  transform: scale(1.03);
}

.about-founder-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, rgba(12, 12, 14, 0.95) 0%, rgba(12, 12, 14, 0.6) 60%, transparent 100%);
  padding: 30px 24px 22px;
  color: #ffffff;
}

.about-founder-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 4px;
}

.about-founder-role {
  font-size: 0.86rem;
  color: #a1a1aa;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.about-founder-role i {
  color: #ffffff;
}

.about-stats-mini-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.about-stat-mini {
  text-align: center;
}

.about-stat-mini-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
}

.about-stat-mini-lbl {
  font-size: 0.7rem;
  color: #a1a1aa;
  margin-top: 2px;
}

.about-pillars-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 28px 0;
}

.about-pillar-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 20px;
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.about-pillar-item:hover {
  background: #ffffff;
  border-color: #09090b;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
  transform: translateX(4px);
}

.about-pillar-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #09090b;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.about-pillar-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #09090b;
  margin-bottom: 3px;
}

.about-pillar-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* 4 Değer Kartı Izgarası */
.values-section-title {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 70px;
}

.value-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: #09090b;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.value-card:hover {
  transform: translateY(-6px);
  border-color: #18181b;
  box-shadow: 0 16px 32px -10px rgba(0, 0, 0, 0.1);
}

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

.value-num {
  font-size: 1.4rem;
  font-weight: 800;
  color: #d4d4d8;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1;
}

.value-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #09090b;
  margin-bottom: 8px;
}

.value-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   YENİ PREMİUM TEKLİF İSTEYİN SAYFASI TASARIMI
   ========================================================================== */
.quote-hero-section {
  position: relative;
  padding: 44px 0 34px;
  background: #0e0f13;
  border-bottom: 1px solid #27272a;
  overflow: hidden;
}

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

.quote-hero-section .breadcrumbs {
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.quote-hero-section .breadcrumbs a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  opacity: 0.9;
}

.quote-hero-section .breadcrumbs a:hover {
  opacity: 1;
}

.quote-hero-section .breadcrumbs .current {
  color: #ffffff;
  font-weight: 600;
}

.quote-hero-section .breadcrumbs i {
  color: #a1a1aa;
  font-size: 0.68rem;
  margin: 0 4px;
}

.quote-hero-title {
  font-size: clamp(1.5rem, 2.4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.quote-hero-desc {
  font-size: 0.98rem;
  line-height: 1.65;
  color: #a1a1aa;
  margin-bottom: 20px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

/* 2-Kolonlu Teklif Sayfası Izgarası */
.quote-page-split {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 40px;
  align-items: start;
}

/* Sağ Bilgilendirme Kartı */
.quote-sidebar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.quote-info-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: 0 10px 30px -8px rgba(0, 0, 0, 0.06);
}

.quote-info-head {
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}

.quote-info-head h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: #09090b;
  margin-top: 8px;
  line-height: 1.3;
}

.quote-process-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.quote-process-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.quote-process-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #f4f4f5;
  color: #09090b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
  border: 1px solid var(--border-medium);
  transition: all 0.3s ease;
}

.quote-process-item:hover .quote-process-icon {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
}

.quote-process-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #09090b;
  margin-bottom: 3px;
}

.quote-process-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Hızlı Yardım / İletişim Kartı */
.quote-contact-card {
  background: #0c0c0e;
  border: 1px solid #27272a;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  color: #ffffff;
}

.quote-contact-card h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.quote-contact-card p {
  font-size: 0.84rem;
  color: #a1a1aa;
  margin-bottom: 18px;
  line-height: 1.5;
}

.quote-contact-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quote-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
}

.quote-contact-btn.phone-btn {
  background: #18181b;
  color: #ffffff;
  border: 1px solid #27272a;
}

.quote-contact-btn.phone-btn:hover {
  background: #ffffff;
  color: #09090b;
  border-color: #ffffff;
}

.quote-contact-btn.wa-btn {
  background: #25d366;
  color: #ffffff;
  border: 1px solid #25d366;
}

.quote-contact-btn.wa-btn:hover {
  background: #1eb857;
}

/* ==========================================================================
   YENİ NESİL LÜKS MOBİL ÇEKMECE MENÜ (DRAWER)
   ========================================================================== */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 340px;
  max-width: 88vw;
  height: 100vh;
  height: 100dvh;
  background: #ffffff;
  border-left: 1px solid #e4e4e7;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  box-shadow: -15px 0 50px rgba(0, 0, 0, 0.15);
  transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  visibility: hidden;
  overflow: hidden;
}

.mobile-drawer.open {
  right: 0;
  visibility: visible;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #e4e4e7;
  background: #f8fafc;
}

.drawer-logo img {
  height: 60px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.drawer-close-btn {
  background: #ffffff;
  border: 1px solid #d4d4d8;
  color: #09090b;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.drawer-close-btn:hover {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
}

.drawer-body {
  padding: 20px 18px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: #ffffff;
}

.drawer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drawer-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 16px;
  border-radius: 10px;
  color: #18181b;
  text-decoration: none;
  font-size: 0.98rem;
  font-weight: 600;
  background: #f8fafc;
  border: 1px solid #e4e4e7;
  transition: all 0.2s ease;
}

.drawer-nav-link-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.drawer-nav-link-left i {
  font-size: 1rem;
  color: #52525b;
  width: 18px;
  text-align: center;
  transition: color 0.2s ease;
}

.drawer-nav-link .arrow-icon {
  font-size: 0.75rem;
  color: #a1a1aa;
  transition: all 0.2s ease;
}

.drawer-nav-link:hover,
.drawer-nav-link.active {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.drawer-nav-link:hover .drawer-nav-link-left i,
.drawer-nav-link.active .drawer-nav-link-left i,
.drawer-nav-link:hover .arrow-icon,
.drawer-nav-link.active .arrow-icon {
  color: #ffffff;
}

.drawer-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  background: #e4e4e7;
  color: #18181b;
  transition: all 0.2s ease;
}

.drawer-nav-link:hover .drawer-badge,
.drawer-nav-link.active .drawer-badge {
  background: #ffffff;
  color: #09090b;
}

.drawer-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.drawer-btn-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #09090b;
  color: #ffffff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.drawer-btn-cta:hover {
  background: #27272a;
  color: #ffffff;
  transform: translateY(-1px);
}

.drawer-btn-phone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #f4f4f5;
  color: #09090b;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #e4e4e7;
  text-decoration: none;
  transition: all 0.2s ease;
}

.drawer-btn-phone:hover {
  background: #e4e4e7;
  border-color: #d4d4d8;
}

.drawer-btn-wa {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #25d366;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px;
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.drawer-btn-wa:hover {
  background: #20ba5a;
}

.drawer-footer {
  padding: 16px 20px 24px;
  border-top: 1px solid #e4e4e7;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-address {
  font-size: 0.75rem;
  color: #52525b;
  line-height: 1.4;
}

.drawer-socials {
  display: flex;
  gap: 8px;
}

.drawer-social-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid #d4d4d8;
  color: #18181b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.drawer-social-btn:hover {
  background: #09090b;
  color: #ffffff;
  border-color: #09090b;
}

.mobile-overlay-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-overlay-backdrop.active {
  opacity: 1;
  visibility: visible;
}