:root {
  --primary-navy: #102a43;
  --primary-light: #243b53;
  --action-blue: #2680eb;
  --action-light: #4895ef;
  --credit-gold: #ffc107;
  --white: #ffffff;
  --bg-dark: #0f172a;
  --bg-card: rgba(255, 255, 255, 0.05);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --glass-border: rgba(255, 255, 255, 0.1);
  --gradient-blue: linear-gradient(135deg, #2680eb 0%, #102a43 100%);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
}

.gradient-text {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glassmorphism */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 2rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--action-blue);
  color: white;
}

.btn-primary:hover {
  background: var(--action-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(38, 128, 235, 0.2);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--text-main);
}

.btn-outline:hover {
  background: var(--bg-card);
  transform: translateY(-2px);
}

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

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: transparent;
  padding: 1.5rem 0;
  z-index: 1000;
  transition: all 0.4s ease;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  padding: 0.75rem 0;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.navbar.scrolled .logo span {
  color: var(--primary-navy); /* Kaydırıldığında lacivert */
}

@media (max-width: 768px) {
  .navbar {
    background: rgba(15, 23, 42, 0.9) !important;
    backdrop-filter: blur(10px);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--glass-border);
  }
  .navbar.scrolled .logo span {
    color: var(--action-blue);
  }
}

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

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.navbar .logo img {
  height: 48px;
  width: auto;
  border: none;
}

.navbar .logo span {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -1px;
  color: white;
  transition: color 0.4s ease;
}

.navbar .nav-links .btn {
  padding: 1.25rem 2.5rem;
  font-size: 1.1rem;
}

/* Sections */
section {
  padding: 8rem 0;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* Adjust for fixed nav height */
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -10%;
  width: 40%;
  height: 60%;
  background: radial-gradient(circle, rgba(38, 128, 235, 0.15) 0%, transparent 70%);
  z-index: -1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

.hero-text p {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.mockup-container {
  position: relative;
}

.mockup-img {
  width: 100%;
  max-width: 400px;
  border-radius: 40px;
  box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.5);
}

/* App Badges */
.badge-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.app-badge {
  height: 48px;
  transition: var(--transition);
}

.app-badge:hover {
  transform: scale(1.05);
}

/* Features/Offers */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card i {
  font-size: 2rem;
  color: var(--action-blue);
  margin-bottom: 1.5rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
  }
}

.hero-badge {
  background: rgba(38, 128, 235, 0.1);
  color: var(--action-blue);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.qr-card {
  padding: 4rem;
}

@media (max-width: 768px) {
  .qr-card {
    padding: 2rem !important;
  }
}

/* Reviews */
.reviews-container {
    overflow: hidden;
    position: relative;
    padding: 2rem 0;
    max-width: 1200px;
    margin: 0 auto;
}

.reviews-scroll {
    display: flex;
    gap: 2rem;
    animation: scroll 60s linear infinite;
    width: max-content;
    padding: 0 1rem;
}

.reviews-scroll:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 1rem)); }
}

.review-card {
    width: 400px;
    flex-shrink: 0;
    position: relative;
    padding: 3rem 2rem 2rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.review-card:hover {
  transform: translateY(-10px);
  border-color: var(--action-blue);
  box-shadow: 0 20px 40px rgba(38, 128, 235, 0.1);
}

.quote-icon {
  position: absolute;
  top: -20px;
  left: 2rem;
  width: 50px;
  height: 50px;
  background: var(--gradient-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 10px 20px rgba(38, 128, 235, 0.3);
}

.review-text {
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 2rem;
  flex-grow: 1;
}

.review-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
}

.user-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}

.user-info h4 {
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.verified-badge {
  color: var(--credit-gold);
  font-size: 0.9rem;
}

.user-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* QR Section */
.qr-section {
  text-align: center;
}

.qr-grid {
  display: flex;
  justify-content: center;
  gap: 4rem;
  margin-top: 3rem;
}

.qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.qr-box {
  width: 200px;
  height: 200px;
  background: white;
  padding: 1rem;
  border-radius: 16px;
}

.qr-box img {
  width: 100%;
  height: 100%;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .hero-text h1 {
    font-size: 2.75rem;
  }
  .hero-text p {
    margin-left: auto;
    margin-right: auto;
  }
  .badge-group {
    justify-content: center;
  }
  .mockup-container {
    order: -1;
  }
  .navbar .logo span {
    font-size: 1.25rem;
  }
  .navbar .logo img {
    height: 40px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 4rem 0;
  }
  .hero {
    padding-top: 100px;
  }
  .hero-text h1 {
    font-size: 2.25rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .review-card {
    width: 300px;
  }
  .qr-grid {
    flex-direction: column;
    gap: 2rem;
  }
  .qr-section .glass-card {
    padding: 2rem !important;
  }
  .qr-section h2 {
    font-size: 2rem !important;
  }
  .navbar .nav-links .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 1.75rem;
  }
  .navbar .logo span {
    display: block;
    font-size: 1.1rem;
  }
  .navbar .logo {
    gap: 0.5rem;
  }
  .navbar .container {
    padding: 0 1rem;
  }
}