/* =====================================================
   Gebze Uzman Tesisat - Custom Styles
   Premium Modern Tasarım
===================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Poppins:wght@500;600;700;800&display=swap');

/* CSS Variables */
:root {
  --primary-gradient: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
  --success-gradient: linear-gradient(135deg, #198754 0%, #157347 100%);
  --danger-gradient: linear-gradient(135deg, #dc3545 0%, #bb2d3b 100%);
  --dark-gradient: linear-gradient(135deg, #212529 0%, #343a40 100%);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.2);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 1.5rem;
}

/* Base Typography */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  line-height: 1.7;
  color: #1a1a2e;
  background-color: #fafafa;
}

h1, h2, h3, h4, h5, h6, .navbar-brand, .btn {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
}

h1 { letter-spacing: -0.02em; }
h2 { letter-spacing: -0.01em; }

/* =====================================================
   Hero Section
===================================================== */
.hero-section {
  background: linear-gradient(135deg, rgba(13, 110, 253, 0.85) 0%, rgba(10, 88, 202, 0.9) 100%),
              url('../img/logar-acma.jpg') no-repeat center center;
  background-size: cover;
  padding: 100px 0;
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-section h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
  line-height: 1.2;
}

.hero-section .lead {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  max-width: 800px;
  margin: 1.5rem auto;
  opacity: 0.95;
  text-shadow: 0 1px 10px rgba(0,0,0,0.2);
}

/* =====================================================
   Cards & Interactive Elements
===================================================== */
.card {
  border: none;
  border-radius: var(--border-radius-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-card {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

/* Icon Circles */
.icon-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.icon-circle:hover {
  transform: scale(1.1);
}

.icon-circle-sm {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* =====================================================
   Buttons
===================================================== */
.btn {
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  padding: 0.6rem 1.5rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--primary-gradient);
  border: none;
  box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
}

.btn-primary:hover {
  background: var(--primary-gradient);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 110, 253, 0.4);
}

.btn-success {
  background: var(--success-gradient);
  border: none;
  box-shadow: 0 4px 15px rgba(25, 135, 84, 0.3);
}

.btn-success:hover {
  background: var(--success-gradient);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(25, 135, 84, 0.4);
}

.btn-danger {
  background: var(--danger-gradient);
  border: none;
  box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-danger:hover {
  background: var(--danger-gradient);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

.btn-outline-primary:hover,
.btn-outline-secondary:hover {
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.8rem 2rem;
  font-size: 1.1rem;
}

/* =====================================================
   Navbar
===================================================== */
.navbar {
  padding: 0.8rem 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}

.navbar-dark .nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: all var(--transition-fast);
  border-radius: var(--border-radius-sm);
}

.navbar-dark .nav-link:hover,
.navbar-dark .nav-link.active {
  background: rgba(255,255,255,0.1);
}

/* =====================================================
   Page Header
===================================================== */
.page-header {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 4rem 0;
  border-bottom: 1px solid #dee2e6;
}

/* =====================================================
   Sections
===================================================== */
section {
  scroll-margin-top: 80px;
}

.bg-light {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%) !important;
}

/* =====================================================
   Contact Info
===================================================== */
.contact-info i {
  font-size: 1.5rem;
  color: #0d6efd;
}

/* =====================================================
   Footer
===================================================== */
footer.bg-dark {
  background: var(--dark-gradient) !important;
}

.footer {
  background: var(--dark-gradient);
  color: #fff;
}

.footer a {
  color: #adb5bd;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer a:hover {
  color: #fff;
}

/* =====================================================
   Modal Enhancements
===================================================== */
.modal-content {
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  border-bottom: none;
}

.modal-footer {
  border-top: none;
}

/* =====================================================
   Breadcrumb
===================================================== */
.breadcrumb {
  background: transparent;
  padding: 0;
  margin-bottom: 0;
}

.breadcrumb-item a {
  color: #6c757d;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
  color: #0d6efd;
}

.breadcrumb-item.active {
  color: #1a1a2e;
  font-weight: 500;
}

/* =====================================================
   Form Enhancements
===================================================== */
.form-control,
.form-select {
  border-radius: var(--border-radius-sm);
  border: 2px solid #e9ecef;
  padding: 0.75rem 1rem;
  transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.1);
}

.form-control-lg,
.form-select-lg {
  padding: 1rem 1.25rem;
  font-size: 1rem;
}

/* =====================================================
   Badge Enhancements
===================================================== */
.badge {
  font-weight: 600;
  padding: 0.5em 1em;
  border-radius: 2rem;
}

/* =====================================================
   Rounded Corners
===================================================== */
.rounded-4 {
  border-radius: var(--border-radius-md) !important;
}

/* =====================================================
   Animations
===================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* =====================================================
   Responsive Adjustments
===================================================== */
@media (max-width: 991.98px) {
  .hero-section {
    padding: 60px 0;
    min-height: auto;
  }
  
  .hero-section h1 {
    font-size: 2rem;
  }
  
  .navbar-collapse {
    background: rgba(33, 37, 41, 0.98);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    margin-top: 0.5rem;
  }
}

@media (max-width: 575.98px) {
  .icon-circle {
    width: 60px;
    height: 60px;
  }
  
  .btn-lg {
    padding: 0.7rem 1.5rem;
    font-size: 1rem;
  }
  
  section {
    padding: 2rem 0;
  }
}

/* =====================================================
   Utility Classes
===================================================== */
.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.shadow-soft {
  box-shadow: var(--shadow-md);
}

.shadow-hard {
  box-shadow: var(--shadow-lg);
}