/* BM SOLAR ENERJİ SİSTEMLERİ - MİMARİ CSS SİSTEMİ */

/* ==========================================================================
   1. CSS DEĞİŞKENLERİ (DESIGN TOKENS)
   ========================================================================== */
:root {
  /* Renk Paleti */
  --color-primary: #0B1A2E;     /* Kurumsal Derin Lacivert */
  --color-primary-light: #1A365D;
  --color-secondary: #FFD700;   /* Canlı Güneş Sarısı */
  --color-secondary-dark: #E6C200;
  --color-accent: #2E8B57;      /* Doğa Yeşili */
  --color-accent-light: #3CB371;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F8F9FA;
  --color-text-main: #2E4057;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  
  /* Tipografi */
  --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Montserrat', system-ui, sans-serif;
  
  /* Gölgeler (Shadows) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px rgba(255, 215, 0, 0.35);
  
  /* Boşluklar (Spacing) */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* Geçişler (Transitions) */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Sınırlar (Border Radius) */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
}

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

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

body {
  font-family: var(--font-family-sans);
  color: var(--color-text-main);
  background-color: var(--color-surface-alt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
}

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

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

/* ==========================================================================
   3. YAPI & LAYOUT (GRID SİSTEMİ)
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.grid {
  display: grid;
  gap: var(--spacing-8);
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
  .grid-cols-3, .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted { color: var(--color-text-muted); }
.font-bold { font-weight: 700; }

.mt-4 { margin-top: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }

.py-12 { padding-top: var(--spacing-12); padding-bottom: var(--spacing-12); }
.py-20 { padding-top: var(--spacing-20); padding-bottom: var(--spacing-20); }

/* ==========================================================================
   4. BİLEŞENLER (COMPONENTS)
   ========================================================================== */

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 50%;
  width: 100%;
  transform: translate3d(-50%, 0, 0);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 12px rgba(11, 26, 46, 0.04);
  z-index: 1000;
  border-radius: 0;
  padding: 14px 24px;
  will-change: width, border-radius, transform, background-color, box-shadow;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: width 0.45s cubic-bezier(0.16, 1, 0.3, 1),
              border-radius 0.45s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.45s ease,
              box-shadow 0.45s ease;
}

.navbar.scrolled {
  width: 92%;
  max-width: 1160px;
  transform: translate3d(-50%, 12px, 0);
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 12px 35px -8px rgba(11, 26, 46, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.92);
  padding: 10px 24px;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.nav-brand img {
  height: 48px;
  border-radius: var(--radius-sm);
}

.nav-brand-text h1 {
  font-size: 1.25rem;
  margin: 0;
  color: var(--color-primary);
}

.nav-brand-text span {
  font-size: 0.75rem;
  color: var(--color-secondary-dark);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: var(--spacing-6);
  align-items: center;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-main);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-full);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-secondary-dark);
  background: rgba(255, 215, 0, 0.1);
}

/* Butonlar */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: var(--color-primary);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: all 0.5s;
  z-index: -1;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.6);
}

.btn-primary:hover::after {
  left: 150%;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px; /* Navbar height compensation */
  padding-bottom: 40px;
  overflow: hidden;
  background-color: var(--color-primary);
  color: var(--color-surface);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0;
  animation: heroKenBurns 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes heroKenBurns {
  0% { transform: scale(1.15); opacity: 0; }
  100% { transform: scale(1); opacity: 0.88; }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 35%, rgba(11, 26, 46, 0.38) 0%, rgba(11, 26, 46, 0.72) 100%);
  z-index: 2;
}

.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 15%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.28) 0%, transparent 70%);
  filter: blur(65px);
  z-index: 2;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 10%;
  right: 15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.22) 0%, transparent 70%);
  filter: blur(70px);
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}


.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 4rem;
  font-weight: 900;
  color: var(--color-surface);
  margin-bottom: var(--spacing-4);
  line-height: 1.15;
  letter-spacing: -1.5px;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
}

.hero p {
  font-size: 1.15rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-6);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 5px 15px rgba(0, 0, 0, 0.8);
  line-height: 1.6;
}

/* Modern İç Sayfa Başlıkları (.page-hero-modern) */
.page-hero-modern {
  position: relative;
  min-height: 44vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 100px;
  padding-bottom: 50px;
  overflow: hidden;
  background: #0B1A2E;
  color: #FFFFFF;
  text-align: center;
}

.page-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.88;
  filter: brightness(1.02) contrast(1.05);
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 26, 46, 0.28) 0%, rgba(11, 26, 46, 0.65) 100%);
  z-index: 2;
}

.page-hero-modern::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.28) 0%, transparent 70%);
  filter: blur(65px);
  z-index: 2;
  pointer-events: none;
}

.page-hero-modern::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: 10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.22) 0%, transparent 70%);
  filter: blur(65px);
  z-index: 2;
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 3;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(255, 215, 0, 0.16);
  border: 1px solid rgba(255, 215, 0, 0.45);
  border-radius: 9999px;
  color: #FFD700;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 16px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.15);
}

.page-hero-title {
  font-size: 3rem;
  font-weight: 900;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.5px;
  text-shadow: 0 6px 20px rgba(0, 0, 0, 0.7);
}

.page-hero-desc {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.92);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.6;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
}

@media (max-width: 768px) {
  .page-hero-modern {
    min-height: 38vh;
    padding-top: 88px;
    padding-bottom: 36px;
  }
  .page-hero-title {
    font-size: 2.1rem;
  }
  .page-hero-desc {
    font-size: 0.95rem;
  }
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  margin-top: var(--spacing-8);
  flex-wrap: wrap;
}

.btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 50px;
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  backdrop-filter: blur(10px);
  text-decoration: none;
}

.btn-hero .material-symbols-outlined {
  font-size: 1.1rem;
}

.btn-hero-primary {
  background: rgba(255, 215, 0, 0.85);
  color: var(--color-primary);
  border: 1px solid rgba(255, 215, 0, 0.5);
  box-shadow: 0 8px 32px rgba(255, 215, 0, 0.25);
}

.btn-hero-primary:hover {
  background: rgba(255, 215, 0, 1);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 40px rgba(255, 215, 0, 0.4);
}

.btn-hero-outline {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.btn-hero-outline:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(255, 255, 255, 0.3);
}

/* Cards (Hizmetler / Projeler) */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-secondary);
}

.card-icon {
  width: 64px;
  height: 64px;
  background: rgba(255, 215, 0, 0.1);
  color: var(--color-secondary-dark);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-6);
  transition: all var(--transition-fast);
}

.card:hover .card-icon {
  background: var(--color-secondary);
  color: var(--color-primary);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-3);
}

.card-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   INTERACTIVE WEB APP FEATURE MODULES (HİZMETLER)
   ========================================================================== */
.services-grid-modern {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .services-grid-modern {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .services-grid-modern {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@keyframes borderSpin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.service-card-modern {
  position: relative;
  background: var(--color-surface);
  border-radius: 20px;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  z-index: 1;
  border: none;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 18px rgba(11, 26, 46, 0.05);
}

/* Dönüp duran logo renklerinde (Altın Sarısı, Lacivert, Sıcak Sarı, Turkuaz) animasyonlu kenarlık */
.service-card-modern::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 260%;
  height: 260%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    #FFD700 80deg,
    #0B1A2E 150deg,
    #F59E0B 240deg,
    #00E5FF 300deg,
    transparent 360deg
  );
  transform: translate(-50%, -50%) rotate(0deg);
  animation: borderSpin 5s linear infinite;
  z-index: -2;
}

/* Kartın iç yüzeyi: 2px dönen kenarlık kalacak şekilde kartı kaplar */
.service-card-modern::after {
  content: '';
  position: absolute;
  inset: 2px;
  background: var(--color-surface);
  border-radius: 18px;
  z-index: -1;
  transition: background 0.3s ease;
}

.service-card-modern:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px -10px rgba(11, 26, 46, 0.14), 0 0 25px rgba(255, 215, 0, 0.2);
}

.service-card-modern:hover::before {
  animation-duration: 2.5s;
}

.service-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.service-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(11, 26, 46, 0.06);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  transition: all 0.3s ease;
}

.service-card-modern:hover .service-card-icon {
  background: var(--color-primary);
  color: var(--color-secondary);
  transform: scale(1.05) rotate(-4deg);
  box-shadow: 0 8px 20px rgba(11, 26, 46, 0.2);
}

.service-card-badge {
  display: none;
}

.service-card-body {
  flex-grow: 1;
  margin-bottom: 16px;
}

.service-card-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: 1.35;
}

.service-card-desc {
  font-size: 0.86rem;
  color: var(--color-text-muted);
  line-height: 1.48;
}

.service-card-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.service-card-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: all 0.3s ease;
}

.service-card-action .icon-arrow {
  font-size: 1.15rem;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--color-secondary-dark);
}

.service-card-modern:hover .service-card-action {
  color: var(--color-secondary-dark);
}

.service-card-modern:hover .service-card-action .icon-arrow {
  transform: translateX(5px);
}

/* İSTATİSTİKLER (Ana Sayfa) — Açık Tema */
.stats-fullwidth-section {
  position: relative;
  background: var(--color-surface);
  border-top: 3px solid var(--color-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: 35px 0;
  margin-top: 0;
  z-index: 5;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item {
  padding: 10px 15px;
  position: relative;
}

/* Aralarındaki dikey ince çizgiler (ilk ve son hariç) */
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -10px;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--color-border);
}

.stat-item .stat-value {
  font-family: var(--font-family-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
  text-shadow: none;
  display: flex;
  justify-content: center;
  align-items: center;
}

.stat-item .stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Mobil Uyum */
@media (max-width: 992px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .stat-item:nth-child(2)::after { display: none; }
  .stat-item:not(:last-child)::after { right: -20px; }
}

@media (max-width: 576px) {
  .stats-grid { grid-template-columns: 1fr; gap: 30px; }
  .stat-item::after { display: none !important; }
}

.calculator-wrapper {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
}

.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-2);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-control {
  width: 100%;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.3);
}

.calc-results {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--spacing-6);
  margin-top: var(--spacing-6);
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.result-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.result-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  margin-bottom: var(--spacing-2);
}

.result-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: monospace;
}

.result-value.highlight { color: var(--color-secondary); }
.result-value.success { color: var(--color-accent-light); }

/* Footer */
.footer {
  background: linear-gradient(160deg, #0D2040 0%, #0B1A2E 60%, #0a1628 100%);
  color: var(--color-surface);
  padding: var(--spacing-16) 0 var(--spacing-8);
  margin-top: auto;
  border-top: 3px solid var(--color-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

.footer-title {
  font-size: 1.1rem;
  color: var(--color-surface);
  margin-bottom: var(--spacing-4);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-secondary);
  transform: translateX(5px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

/* Mobile Menu Overlay */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

body.no-scroll {
  overflow: hidden;
}

/* Mobile Nav */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 2rem;
  cursor: pointer;
  z-index: 1001;
}

@media (max-width: 768px) {
  .mobile-menu-btn { 
    display: block; 
  }
  
  .navbar {
    width: 100% !important;
    transform: translate3d(-50%, 0, 0) !important;
    border-radius: 0 !important;
    padding: 8px 14px !important;
  }
  
  .navbar.scrolled {
    width: calc(100% - 20px) !important;
    transform: translate3d(-50%, 8px, 0) !important;
    border-radius: 9999px !important;
    padding: 8px 16px !important;
  }

  .nav-brand img {
    height: 30px !important;
  }

  .nav-brand-text h1 {
    font-size: 0.95rem !important;
    margin: 0 !important;
  }

  .nav-brand-text span {
    font-size: 0.62rem !important;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 310px;
    height: 100vh;
    height: 100dvh;
    background: rgba(11, 26, 46, 0.97);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 95px 24px 30px;
    box-shadow: -15px 0 40px rgba(0, 0, 0, 0.45);
    border-left: 1px solid rgba(255, 255, 255, 0.14);
    border-top-left-radius: 28px;
    border-bottom-left-radius: 28px;
    transition: right 0.45s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
  }
  
  .nav-links.nav-active {
    right: 0;
  }
  
  .nav-links a {
    width: 100%;
    font-size: 1.15rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.88);
    padding: 14px 20px;
    margin-bottom: 6px;
    border: 1px solid transparent;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.25s ease;
  }

  .nav-links a:hover, .nav-links a.active {
    background: rgba(255, 215, 0, 0.15);
    color: var(--color-secondary);
    border-color: rgba(255, 215, 0, 0.3);
    transform: translateX(6px);
  }

  .nav-links a.btn {
    background: linear-gradient(135deg, var(--color-secondary), #E6C200);
    color: #0B1A2E !important;
    font-weight: 800;
    margin-top: auto;
    padding: 16px 20px;
    border-radius: 9999px;
    box-shadow: 0 10px 25px rgba(255, 215, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }

  /* Typography Scaling */
  .hero {
    min-height: 100vh !important;
    min-height: 100dvh !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 90px 16px 40px !important;
  }
  
  .hero h1 { 
    font-size: 1.8rem !important; 
    line-height: 1.3 !important;
    margin-bottom: var(--spacing-3);
  }
  
  .hero p {
    font-size: 0.9rem !important;
    margin-bottom: var(--spacing-4);
    line-height: 1.5;
  }
  
  .hero-buttons {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    width: 100% !important;
    gap: 8px !important;
    justify-content: center !important;
    align-items: stretch !important;
  }
  
  .btn-hero {
    flex: 1 1 0% !important;
    min-width: 0 !important;
    font-size: 0.75rem !important;
    padding: 10px 8px !important;
    white-space: normal !important;
    text-align: center !important;
    line-height: 1.25 !important;
    border-radius: 14px !important;
    justify-content: center !important;
  }
  
  .btn-hero .material-symbols-outlined {
    font-size: 1rem !important;
  }
  
  .section-title {
    margin-bottom: 20px !important;
  }

  .section-title h2 {
    font-size: 1.5rem !important;
  }
  
  .section-title p {
    font-size: 0.85rem !important;
  }

  /* Spacing Adjustments */
  .py-20 { padding-top: 30px !important; padding-bottom: 30px !important; }
  .py-12 { padding-top: 20px !important; padding-bottom: 20px !important; }
  
  .card { padding: 15px !important; }
  
  /* Service Card Optimization */
  .service-card {
    padding: 20px 15px !important;
  }
  .service-card .card-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.5rem !important;
  }
  .service-card h3 {
    font-size: 1.1rem !important;
  }
  .service-card p {
    font-size: 0.85rem !important;
  }

  /* Layout Fixes */
  .grid-cols-2 {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .grid-cols-3, .grid-cols-4 { 
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important; 
  }
  
  /* Compact cards inside grid-cols-4 (Services) */
  .grid-cols-4 .card {
    padding: 12px 10px !important;
    text-align: center;
  }
  .grid-cols-4 .card .card-icon {
    width: 36px !important;
    height: 36px !important;
    font-size: 1.2rem !important;
    margin: 0 auto 10px !important;
  }
  .grid-cols-4 .card-title {
    font-size: 0.85rem !important;
    margin-bottom: 5px !important;
  }
  .grid-cols-4 .card-desc {
    font-size: 0.7rem !important;
    line-height: 1.3 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 3 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
  }

  /* Compact Project Cards (Grid-cols-3 on mobile) */
  .project-card-item .project-img-wrapper {
    height: 95px !important; /* Görsel alanı kısaltıldı */
  }
  .project-mobile-hide {
    display: none !important;
  }
  .grid-cols-2-mobile-stack {
    grid-template-columns: 1fr !important;
  }
  .btn {
    padding: 0.55rem 1.2rem !important;
    font-size: 0.85rem !important;
  }
  /* Team Member Mobile Optimization */
  .team-member-photo-wrapper {
    width: 90px !important;
    height: 90px !important;
    margin: 0 auto 0.75rem !important;
    border-radius: 50% !important;
    overflow: hidden !important;
    border: 3px solid white !important;
    box-shadow: var(--shadow-md) !important;
  }
  .team-member-name {
    font-size: 0.95rem !important;
  }
  .team-member-dept {
    font-size: 0.65rem !important;
  }
  .team-member-title {
    font-size: 0.75rem !important;
    margin-bottom: 0.25rem !important;
  }
  .team-member-bio {
    font-size: 0.75rem !important;
    line-height: 1.3 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 3 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    margin-bottom: 0.25rem !important;
  }
  .team-member-univ {
    font-size: 0.7rem !important;
  }
  .team-member-linkedin i {
    font-size: 1.2rem !important;
  }
  .project-capacity-badge {
    top: 6px !important;
    right: 6px !important;
    padding: 2px 6px !important;
    font-size: 0.65rem !important;
  }
  .project-card-body {
    padding: 8px 10px !important;
    flex-grow: 1 !important;
    display: flex !important;
    flex-direction: column !important;
  }
  .project-badge {
    display: none !important;
  }
  .project-card-title {
    font-size: 0.75rem !important;
    font-weight: 700 !important;
    color: var(--color-text) !important;
    margin-bottom: 4px !important;
    line-height: 1.3 !important;
    height: 2.6em !important; /* Tam 2 satır yüksekliğinde sabitleme */
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
  }
  .project-client-name {
    display: none !important;
  }
  .project-divider {
    display: none !important;
  }
  .project-details-grid {
    display: block !important;
    margin-top: auto !important;
  }
  .project-detail-item {
    display: none !important;
  }
  .project-detail-item:first-child {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 3px !important;
  }
  .project-detail-label {
    display: none !important;
  }
  .project-detail-value {
    font-size: 0.68rem !important;
    color: var(--color-text-muted) !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: center !important;
    gap: 2px !important;
  }
  .project-detail-value .material-symbols-outlined {
    font-size: 0.8rem !important;
    color: var(--color-accent) !important;
  }

  /* Footer Mobile Optimization */
  .footer-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px 15px !important;
  }
  .footer-grid > div:first-child {
    grid-column: span 2 !important;
    margin-bottom: 5px;
  }
  .footer-grid > div:last-child {
    grid-column: span 2 !important;
  }
  .footer-grid > div:last-child .footer-links {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px 15px !important;
    flex-direction: row !important;
  }
  .footer-grid > div:last-child .footer-links p {
    margin-bottom: 0 !important;
    font-size: 0.8rem !important;
  }
  .footer-title {
    font-size: 0.95rem !important;
    margin-bottom: 10px !important;
  }
  .footer-links a {
    font-size: 0.8rem !important;
    padding: 3px 0 !important;
  }
  .social-links {
    margin-top: 10px !important;
    gap: 15px !important;
  }
  .social-links a {
    font-size: 1.2rem !important;
  }
  
  /* Timeline fix for Hakkimizda */
  .timeline-content-box {
    width: 80% !important;
    padding: 0 0 0 2rem !important;
    text-align: left !important;
  }
  .timeline-item {
    justify-content: flex-end !important;
  }
  .timeline-marker {
    left: 20px !important;
  }
  .timeline-line {
    left: 20px !important;
  }

  /* Compact Stats Grid (2x2 Grid instead of vertical stack) */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 15px !important;
  }
  .stat-item {
    padding: 10px 5px !important;
  }
  .stat-item::after {
    display: none !important;
  }
  /* Border vertical divider only between cols 1 & 2 on each row */
  .stat-item:nth-child(odd)::after {
    display: block !important;
    content: '';
    position: absolute;
    right: -7px;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--color-border);
  }
  .stat-item .stat-value {
    font-size: 1.6rem !important;
  }
  .stat-item .stat-label {
    font-size: 0.7rem !important;
    letter-spacing: 0.5px !important;
  }

  /* Social Bar Mobile Pos: Tam Sol Altta Sıfır Boşluklu */
  .sticky-social-bar {
    left: 0 !important;
    right: auto !important;
    bottom: 12px !important;
  }
  .sticky-social-bar .social-icon {
    width: 38px !important;
    height: 38px !important;
    font-size: 1.05rem !important;
    left: 0 !important;
    border-top-right-radius: 10px !important;
    border-bottom-right-radius: 10px !important;
    border-top-left-radius: 0 !important;
    border-bottom-left-radius: 0 !important;
  }
  .sticky-social-bar .social-icon:hover {
    left: 0 !important;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.85rem; }
  .nav-brand img { height: 36px; }
  .nav-brand-text h1 { font-size: 1.1rem; }
}

/* Utility */
.section-title {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-4);
}

.section-title p {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* Slider & Pagination */
.btn-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover:not(:disabled) {
  background: var(--color-primary);
  color: var(--color-secondary);
  border-color: var(--color-primary);
}

.btn-icon:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.page-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-dot.active {
  background: var(--color-primary);
  transform: scale(1.4);
}

.project-card-item {
  animation: fadeInProject 0.5s ease-out forwards;
}

@keyframes fadeInProject {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Floating GES Hesapla Button */
.calc-float {
  position: fixed;
  width: 65px;
  height: 65px;
  bottom: 30px;
  right: 30px;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border-radius: 50%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  text-decoration: none;
  border: 2px solid var(--color-secondary);
}

.calc-float .material-symbols-outlined {
  font-size: 34px;
}

.calc-float:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  transform: scale(1.1) translateY(-5px);
  box-shadow: 0 15px 30px rgba(245, 158, 11, 0.4);
}

/* Sticky Left Social Bar (Tam Sol Altta Renkli Modern Cam Tasarım) */
.sticky-social-bar {
  position: fixed;
  bottom: 15px;
  left: 0;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  gap: 5px;
}

.sticky-social-bar .social-icon {
  width: 40px;
  height: 40px;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(0,0,0,0.22);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  border-top-right-radius: 10px;
  border-bottom-right-radius: 10px;
  position: relative;
  left: 0;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.sticky-social-bar .social-icon:hover {
  width: 52px;
  left: 0;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.35);
}

/* Renkli + Cam Efektli Marka Görünümü */
.sticky-social-bar .social-icon.instagram {
  background: linear-gradient(135deg, rgba(240, 148, 51, 0.88), rgba(220, 39, 67, 0.88), rgba(188, 24, 136, 0.88));
}
.sticky-social-bar .social-icon.facebook {
  background: rgba(24, 119, 242, 0.88);
}
.sticky-social-bar .social-icon.linkedin {
  background: rgba(10, 102, 194, 0.88);
}
.sticky-social-bar .social-icon.twitter {
  background: rgba(15, 23, 42, 0.90);
}
.sticky-social-bar .social-icon.whatsapp {
  background: rgba(37, 211, 102, 0.88);
}

/* HAREKETLİ KAPSÜL GALERİSİ (MANUAL + AUTO SCROLL) */
.gallery-slider-container {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.gallery-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--color-surface);
  color: var(--color-primary);
  border: 1px solid rgba(0,0,0,0.1);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 999; /* Butonların her zaman en üstte olması için yükseltildi */
  transition: all 0.3s ease;
}

.gallery-btn:hover {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 8px 15px rgba(0,0,0,0.2);
}

.gallery-btn.prev-btn { left: 20px; }
.gallery-btn.next-btn { right: 20px; }

.marquee-wrapper {
  width: 100%;
  overflow: hidden;
  padding: 20px 0;
  position: relative;
}

.marquee-wrapper::before,
.marquee-wrapper::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 10%;
  z-index: 5;
  pointer-events: none;
}
.marquee-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--color-surface), transparent);
}
.marquee-wrapper::after {
  right: 0;
  background: linear-gradient(to left, var(--color-surface), transparent);
}

.marquee-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-behavior: auto;
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none; /* Firefox */
  padding: 0 10%; /* Fade efekti altından çıkması için padding */
}

.marquee-track::-webkit-scrollbar {
  display: none; /* Chrome, Safari and Opera */
}

.marquee-group {
  display: flex;
  gap: 20px;
  padding-right: 20px;
  flex-shrink: 0;
}

/* Kapsül Tasarımı */
.marquee-capsule {
  width: 160px;
  height: 450px;
  border-radius: 80px;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
  background-color: var(--color-primary);
}

.marquee-capsule img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.6s ease;
  filter: grayscale(40%) brightness(0.8);
}

/* Kapsül Üzerine Gelince Genişler */
.marquee-capsule:hover {
  width: 400px;
  border-radius: 30px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.marquee-capsule:hover img {
  filter: grayscale(0%) brightness(1);
  transform: scale(1.05);
}

.capsule-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11,26,46,0.95) 0%, rgba(11,26,46,0.2) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.5s ease;
  display: flex;
  align-items: flex-end;
  padding: 2rem;
}

.marquee-capsule:hover .capsule-overlay {
  opacity: 1;
}

.capsule-content {
  color: white;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.1s;
  white-space: normal;
  width: 100%;
}

.marquee-capsule:hover .capsule-content {
  transform: translateY(0);
  opacity: 1;
}

.capsule-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 800;
  color: var(--color-secondary);
  text-shadow: 0 4px 10px rgba(0,0,0,0.6);
}

.capsule-content p {
  font-size: 1rem;
  margin: 0;
  opacity: 0.9;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .marquee-capsule {
    width: 145px;
    height: 265px;
    border-radius: 9999px !important;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .marquee-capsule:hover, .marquee-capsule:active, .marquee-capsule:focus {
    width: 230px;
    border-radius: 18px !important;
  }
  .capsule-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(11,26,46,0.95) 0%, rgba(11,26,46,0.5) 55%, transparent 100%);
    padding: 1.2rem 0.9rem 2.2rem !important;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    text-align: center;
  }
  .capsule-content {
    opacity: 1;
    transform: translateY(0);
    width: 100%;
    text-align: center;
  }
  .capsule-content h3 {
    font-size: 0.92rem;
    line-height: 1.3;
    margin-bottom: 0.3rem;
    color: #FFFFFF !important;
    text-align: center;
    font-weight: 800;
    letter-spacing: 0.2px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.85);
  }
  .capsule-content p {
    font-size: 0.76rem;
    color: var(--color-secondary) !important;
    font-weight: 600;
    opacity: 1;
    text-align: center;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-shadow: 0 2px 6px rgba(0,0,0,0.85);
  }
  .marquee-wrapper::before,
  .marquee-wrapper::after {
    width: 10%;
  }
}

.text-white { color: var(--color-surface); }

/* ==========================================================================
   GES HESAPLAMA ARACI (PREMIUM STYLING)
   ========================================================================== */
.calc-page-bg {
  background: linear-gradient(135deg, #F4F6F9 0%, #EBF0F6 100%);
}

.calculator-container {
  max-width: 1100px;
  margin: 0 auto;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 30px;
  align-items: stretch;
}

.calc-card {
  border-radius: var(--radius-2xl);
  box-shadow: 0 15px 35px rgba(11, 26, 46, 0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.calc-input-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 40px;
}

.calc-result-panel {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  padding: 40px;
  color: var(--color-text-main);
}

.calc-card-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 30px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  padding-bottom: 15px;
}

.calc-result-panel .calc-card-header {
  border-bottom-color: var(--color-border);
}

.calc-card-header h3 {
  font-family: var(--font-family-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-primary);
}

.calc-result-panel .calc-card-header h3 {
  color: var(--color-primary);
}

.calc-card-header .icon {
  font-size: 1.8rem;
  color: var(--color-primary);
}

.calc-card-header .text-secondary {
  color: var(--color-secondary-dark);
}

/* Form Groups & Inputs */
.calc-input-panel .form-group {
  margin-bottom: 25px;
}

.calc-input-panel .form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 10px;
}

.select-wrapper {
  position: relative;
}

.select-icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 1.25rem;
  pointer-events: none;
}

.calc-input-panel .form-control {
  padding: 14px 15px 14px 45px;
  border: 1px solid #CBD5E1;
  border-radius: 12px;
  background-color: #F8FAFC;
  font-weight: 600;
  color: var(--color-primary);
  width: 100%;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  background-size: 16px;
  transition: all 0.2s ease;
}

.calc-input-panel .form-control:focus {
  border-color: var(--color-primary);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(11, 26, 46, 0.1);
}

/* Slider Design */
.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.slider-badge {
  background: rgba(11, 26, 46, 0.05);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(11, 26, 46, 0.1);
}

.slider-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.slider-wrapper .input-icon {
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
  font-size: 1.25rem;
}

.slider-wrapper input[type="range"].form-range {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #E2E8F0;
  outline: none;
  margin: 15px 0 15px 30px; /* Icon için sol boşluk */
}

.slider-wrapper input[type="range"].form-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-secondary);
  border: 2px solid #FFFFFF;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.slider-wrapper input[type="range"].form-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-wrapper input[type="range"].form-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-secondary);
  border: 2px solid #FFFFFF;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.slider-limits {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: -5px;
  padding-left: 30px; /* Icon boşluğu ile hizalı */
}

/* Warnings */
.calc-warning-box {
  background: rgba(239, 68, 68, 0.05);
  border-left: 4px solid #EF4444;
  color: #DC2626;
  padding: 15px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 25px;
  font-weight: 600;
}

/* Results / Dashboard Design */
.result-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 30px;
}

.result-dashboard {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dashboard-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: all 0.3s ease;
}

.dashboard-widget:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
}

.widget-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(11, 26, 46, 0.06);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.widget-icon .material-symbols-outlined {
  font-size: 1.5rem;
}

.widget-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.widget-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  font-weight: 600;
}

.widget-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-family-heading);
}

/* Highlighted Main Widget */
.highlight-widget {
  background: rgba(255, 215, 0, 0.06);
  border-color: var(--color-secondary);
  padding: 25px;
}

.highlight-widget .widget-icon {
  background: rgba(255, 215, 0, 0.12);
  color: var(--color-secondary-dark);
  width: 60px;
  height: 60px;
  border-radius: 16px;
}

.highlight-widget .widget-icon .material-symbols-outlined {
  font-size: 2rem;
}

.highlight-widget .widget-value {
  font-size: 2rem;
  color: var(--color-primary);
}

/* Sub Grid of Widgets */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* Specialized Widget Colors */
.success-widget {
  background: rgba(16, 185, 129, 0.04);
  border-color: rgba(16, 185, 129, 0.15);
}
.success-widget .widget-icon {
  background: rgba(16, 185, 129, 0.1);
  color: #10B981;
}

.info-widget {
  background: rgba(56, 189, 248, 0.04);
  border-color: rgba(56, 189, 248, 0.15);
}
.info-widget .widget-icon {
  background: rgba(56, 189, 248, 0.1);
  color: #38BDF8;
}

.text-secondary { color: var(--color-secondary-dark) !important; }
.text-success { color: #059669 !important; }
.text-info { color: #0284C7 !important; }

/* Call To Action */
.calc-action-area {
  margin-top: 40px;
  text-align: center;
}

.btn-cta-report {
  background: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
  width: 100%;
  padding: 16px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 10px 25px rgba(255, 215, 0, 0.2);
  transition: all 0.3s ease;
}

.btn-cta-report:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 215, 0, 0.3);
}

.btn-cta-report .material-symbols-outlined {
  font-size: 1.3rem;
}

.disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 15px;
  line-height: 1.4;
}

/* Responsive Grid for Calculator */
@media (max-width: 992px) {
  .calculator-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 576px) {
  .calc-input-panel, .calc-result-panel {
    padding: 20px 15px !important;
  }
  
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }
  
  .dashboard-widget {
    padding: 12px 10px !important;
    gap: 8px !important;
    flex-direction: column !important;
    text-align: center !important;
  }

  .widget-icon {
    width: 32px !important;
    height: 32px !important;
    border-radius: 6px !important;
    margin: 0 auto !important;
  }

  .widget-icon .material-symbols-outlined {
    font-size: 1rem !important;
  }

  .widget-value {
    font-size: 1rem !important;
  }

  .widget-label {
    font-size: 0.65rem !important;
  }
  
  .highlight-widget .widget-value {
    font-size: 1.4rem !important;
  }
}

/* --- PROJECT CARD HOVER OVERLAY --- */
.project-img-wrapper {
  position: relative;
  overflow: hidden;
}

.project-hover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 26, 46, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 2;
}

.btn-project-examine {
  background: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transform: translateY(15px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
  font-family: var(--font-family-heading);
}

.btn-project-examine .material-symbols-outlined {
  font-size: 1.1rem;
}

/* Hover Effects */
.project-card-item:hover .project-hover-overlay {
  opacity: 1;
}

.project-card-item:hover .btn-project-examine {
  transform: translateY(0);
}

.project-card-item:hover img {
  transform: scale(1.08) !important;
}

/* On mobile devices, hide hover overlay to prevent tap double behavior */
@media (max-width: 768px) {
  .project-hover-overlay {
    display: none !important;
  }
}

/* --- PREMIUM PROJECT DETAIL MODAL --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 17, 30, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-wrapper {
  width: 90%;
  max-width: 550px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  position: relative;
  transform: translateY(30px) scale(0.95);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-wrapper {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(11, 26, 46, 0.08);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  background: var(--color-primary);
  color: var(--color-secondary);
  transform: rotate(90deg);
}

.modal-img-container {
  height: 240px;
  position: relative;
  background: #0b1a2e;
}

.modal-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-badge-capacity {
  position: absolute;
  bottom: 15px;
  right: 15px;
  background: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.modal-info-body {
  padding: 25px;
}

.modal-badges-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.modal-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.modal-badge.service {
  background: rgba(11, 26, 46, 0.08);
  color: var(--color-secondary-dark);
}

.modal-badge.type {
  background: var(--color-surface-alt);
  color: var(--color-text-muted);
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 8px;
}

.modal-client-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.modal-client-info .material-symbols-outlined {
  font-size: 1.1rem;
}

.modal-tax-no {
  font-size: 0.75rem;
  opacity: 0.6;
}

.modal-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 15px 0;
}

.modal-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.modal-detail-item {
  display: flex;
  flex-direction: column;
}

.modal-detail-item .label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.modal-detail-item .value {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.modal-detail-item .value .material-symbols-outlined {
  font-size: 1.1rem;
  color: var(--color-secondary-dark);
}

/* Bottom Drawer behavior on Mobile */
@media (max-width: 576px) {
  .modal-overlay {
    align-items: flex-end;
  }
  
  .modal-wrapper {
    width: 100%;
    max-width: 100%;
    border-radius: 24px 24px 0 0;
    transform: translateY(100%);
    border-left: none;
    border-right: none;
    border-bottom: none;
  }
  
  .modal-overlay.active .modal-wrapper {
    transform: translateY(0);
  }
  
  .modal-img-container {
    height: 180px;
  }
  
  .modal-info-body {
    padding: 20px 15px 30px;
  }
}

/* ==========================================================================
   KAPSAMLI MOBİL UYUM GELİŞTİRMELERİ
   ========================================================================== */

/* ──────────────────────────────────────────────────────────
   PROJE KARTLARI — MOBİLDE "İNCELE" CHIP (TOUCH FRIENDLY)
   ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Masaüstü hover overlay gizli (zaten gizliydi, pekiştiriyoruz) */
  .project-hover-overlay { display: none !important; }

  /* Görselin üzerine daima görünen küçük "İncele" chip'i */
  .project-img-wrapper::after {
    content: "👆 İncele";
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(11,26,46,0.8);
    color: var(--color-secondary);
    font-size: 0.6rem;
    font-weight: 700;
    font-family: var(--font-family-heading);
    padding: 3px 8px;
    border-radius: 99px;
    pointer-events: none;
    z-index: 3;
    backdrop-filter: blur(4px);
    letter-spacing: 0.3px;
  }

  /* Projelerimiz sayfası: 3 sütun → 2 sütun */
  .grid.grid-cols-3 {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  /* Proje kart görsel yüksekliği küçültme */
  .project-card-item .project-img-wrapper {
    height: 120px !important;
  }

  /* İletişim formu: yan yana 2 sütun → alt alta */
  .grid-cols-2-mobile-stack {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* İletişim sayfası 2 sütun layout → tek sütun */
  .grid.grid-cols-2 {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-8) !important;
  }

  /* Projelerimiz filtre formu: 3 sütun → tek sütun */
  form.grid.grid-cols-3 {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Footer bottom → alt alta */
  .footer-bottom {
    flex-direction: column !important;
    gap: 8px !important;
    text-align: center !important;
  }

  /* Sticky social bar: tam sol altta sabit */
  .sticky-social-bar {
    bottom: 12px !important;
    left: 0 !important;
  }
  .sticky-social-bar .social-icon {
    width: 38px !important;
    height: 38px !important;
    font-size: 1.05rem !important;
    left: 0 !important;
  }

  /* Floating hesapla butonu: mobilde kompakt */
  .calc-float {
    width: 52px !important;
    height: 52px !important;
    bottom: 18px !important;
    right: 14px !important;
  }
  .calc-float .material-symbols-outlined {
    font-size: 24px !important;
  }

  /* Hesaplama sayfası margin */
  section.py-20.calc-page-bg {
    margin-top: 70px !important;
    padding-top: 20px !important;
    padding-bottom: 30px !important;
  }

  /* Hakkımızda ekip: grid-cols-4 → 2 sütun */
  .grid.grid-cols-4 {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
  }

  /* Projeler boş durum: span 3 → span 2 */
  [style*="grid-column: span 3"] {
    grid-column: span 2 !important;
  }
}

/* ──────────────────────────────────────────────────────────
   TİMELINE (Hakkımızda) — MOBİL: Tek Sütun, Sola Hizalı
   ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .timeline-line {
    left: 10px !important;
    transform: none !important;
  }
  .timeline-marker {
    left: 2px !important;
    transform: none !important;
    width: 16px !important;
    height: 16px !important;
  }
  .timeline-item {
    justify-content: flex-start !important;
    padding-left: 36px !important;
    margin-bottom: var(--spacing-6) !important;
  }
  .timeline-content-box {
    width: 100% !important;
    padding: 0 !important;
    text-align: left !important;
  }
}

/* ──────────────────────────────────────────────────────────
   GALERİ KAPSÜLLERİ — DOKUNMATIK CİHAZLAR
   Hover olmadığından içerik her zaman görünür.
   ────────────────────────────────────────────────────────── */
@media (hover: none) and (pointer: coarse) {
  .marquee-capsule:hover {
    width: 160px !important;
    border-radius: 80px !important;
  }
  .capsule-overlay {
    opacity: 1 !important;
    background: linear-gradient(to top, rgba(11,26,46,0.9) 0%, transparent 60%) !important;
  }
  .capsule-content {
    transform: translateY(0) !important;
    opacity: 1 !important;
  }
  .capsule-content h3 { font-size: 0.85rem !important; margin-bottom: 0 !important; }
  .capsule-content p { display: none !important; }
  .marquee-capsule img { filter: brightness(0.65) !important; }
}

/* ──────────────────────────────────────────────────────────
   KÜÇÜK EKRANLAR (≤ 480px)
   ────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .grid.grid-cols-3 {
    grid-template-columns: 1fr !important;
  }
  .nav-brand img { height: 36px !important; }
  .nav-brand-text h1 { font-size: 1rem !important; }
  .nav-brand-text span { display: none !important; }
  .section-title h2 { font-size: 1.3rem !important; }
  .stats-fullwidth-section { padding: 20px 0 !important; }
  .container { padding: 0 12px !important; }
}

/* ──────────────────────────────────────────────────────────
   TABLET (769px – 992px)
   ────────────────────────────────────────────────────────── */
@media (min-width: 769px) and (max-width: 992px) {
  .grid.grid-cols-3 {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  .grid.grid-cols-2 {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-8) !important;
  }
  .calculator-grid {
    grid-template-columns: 1fr !important;
  }
  .grid.grid-cols-4 {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}