* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(44, 62, 80, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #e74c3c;
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-menu a:hover {
  color: #e74c3c;
}

.mobile-menu {
  display: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  height: 100vh;
  background: linear-gradient(
      135deg,
      rgba(231, 76, 60, 0.8),
      rgba(52, 152, 219, 0.8)
    ),
    url('https://images.unsplash.com/photo-1517248135467-4c7edcad34c4?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
}

.hero-content {
  max-width: 800px;
  padding: 0 2rem;
  color: white;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.app-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.app-store-link {
  display: inline-block;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.app-store-link:hover {
  transform: translateY(-3px);
  opacity: 0.9;
}

.app-store-link img {
  height: 60px;
  width: auto;
  border-radius: 8px;
}

/* App Screenshots Section */
.app-screenshots {
  padding: 5rem 0;
  background: #fff;
  text-align: center;
}

.screenshots-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.screenshot-item {
  background: #f8f9fa;
  border-radius: 20px;
  padding: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.screenshot-item:hover {
  transform: translateY(-10px);
}

.screenshot-placeholder {
  width: 100%;
  height: 400px;
  background: linear-gradient(145deg, #e74c3c, #3498db);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: bold;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.screenshot-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 15px;
}

.screenshot-placeholder span {
  position: relative;
  z-index: 1;
}

/* App Overview Section */
.app-overview {
  padding: 5rem 0;
  background: #f8f9fa;
}

.overview-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.overview-content h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: #2c3e50;
}

.overview-content p {
  font-size: 1.2rem;
  color: #666;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.overview-features {
  list-style: none;
  margin-top: 2rem;
}

.overview-features li {
  padding: 0.5rem 0;
  font-size: 1.1rem;
  color: #555;
  position: relative;
  padding-left: 2rem;
}

.overview-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #e74c3c;
  font-weight: bold;
  font-size: 1.2rem;
}

.video-container {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  background: #f8f9fa;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 15px;
}

/* Video Placeholder */
.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, #e74c3c, #3498db);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: bold;
  text-align: center;
  border-radius: 15px;
}

.video-placeholder i {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.8;
}

.video-placeholder p {
  margin: 0.5rem 0;
  opacity: 0.9;
}

/* Features Section */
.features {
  padding: 5rem 0;
  background: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #2c3e50;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.category-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  border: 1px solid #f0f0f0;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.category-icon {
  font-size: 3rem;
  color: #e74c3c;
  margin-bottom: 1rem;
}

.category-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #2c3e50;
}

.category-card p {
  color: #666;
  line-height: 1.6;
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background: #2c3e50;
  color: white;
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.contact-item {
  text-align: center;
  padding: 2rem;
}

.contact-item i {
  font-size: 3rem;
  color: #e74c3c;
  margin-bottom: 1rem;
}

.contact-item h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-item p {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* Social Media */
.social-links {
  text-align: center;
  margin-top: 3rem;
}

.social-links h3 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: #e74c3c;
  color: white;
  border-radius: 50%;
  text-decoration: none;
  font-size: 1.5rem;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.social-icon:hover {
  transform: scale(1.1);
  background: #c0392b;
}

/* Footer */
.footer {
  background: #1a1a1a;
  color: white;
  text-align: center;
  padding: 2rem 0;
}

.footer-links {
  margin-bottom: 1rem;
}

.footer-links a {
  color: #ccc;
  text-decoration: none;
  margin: 0 1rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #e74c3c;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .overview-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .screenshots-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }  .app-buttons {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .app-store-link img {
    height: 50px;
  }

  .categories-grid {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

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

  .overview-container {
    gap: 2rem;
  }

  .overview-content h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .screenshots-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 2rem;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.8s ease forwards;
}

.slide-in-right {
  animation: slideInRight 0.8s ease forwards;
}