:root {
  --primary-color: #3b82f6;
  --primary-light: #60a5fa;
  --primary-dark: #2563eb;
  --secondary-color: #60a5fa;
  --accent-color: #0ea5e9;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --background: #ffffff;
  --surface: #eff6ff;
  --surface-alt: #dbeafe;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 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);
  --radius: 0.75rem;
  --radius-lg: 1rem;
  --gradient-primary: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
}

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

/* Navigation styles */
.top-nav {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  background: transparent;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 60px;
  position: relative;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}

.nav-link:hover {
  color: var(--primary-color);
  background: rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
}

.nav-toggle:hover {
  color: var(--primary-color);
  background: rgba(59, 130, 246, 0.1);
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--background);
  overflow-x: hidden;
}

/* Main Content */
.main-content {
  /* padding-top removed for full-height hero */
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: white;
  position: relative;
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: center;
  height: 400px;
}

.hero::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='0.05'%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");
  opacity: 0.1;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  position: relative;
  z-index: 1;
}

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

.hero-title {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff, #dbeafe);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.download-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.download-btn {
  transition:
    transform 0.3s ease,
    filter 0.3s ease;
  border-radius: var(--radius);
  overflow: hidden;
}

.download-btn:hover {
  transform: translateY(-2px) scale(1.05);
  filter: brightness(1.1);
}

.download-btn img {
  height: 60px;
  width: auto;
  display: block;
}

.hero-image {
  text-align: center;
}

.mockup-img {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.3));
  animation: phone-rotate 8s ease-in-out infinite;
  transform-origin: center center;
}

.mockup-img.rotated {
  transform: rotate(10deg) translateY(200px);
}

@keyframes phone-rotate {
  0%,
  100% {
    transform: rotate(10deg) translateY(200px) translateX(0px) scale(0.99);
  }

  50% {
    transform: rotate(10deg) translateY(200px) translateX(0px) scale(1.01);
  }
}

/* Section Styles */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

/* Features Section */
.features-section {
  padding: 6rem 0;
  background: var(--surface);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  text-align: center;
}

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

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Screenshots Section */
.screenshots-section {
  padding: 6rem 0;
  background: white;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.screenshot-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
}

.screenshot-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* Footer */
.footer-section {
  padding: 3rem 0;
  background: var(--text-primary);
  color: white;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-info {
  font-size: 0.9rem;
}

.contact-link {
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.contact-link:hover {
  color: white;
  text-decoration: underline;
}

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

  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 60px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 60px);
    background: var(--background);
    box-shadow: var(--shadow-xl);
    flex-direction: column;
    padding: 2rem;
    gap: 1rem;
    transition: right 0.3s ease;
    border-left: 1px solid var(--border);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    font-size: 1rem;
    padding: 0.8rem 1.2rem;
    width: 100%;
    text-align: left;
    border-radius: 0.75rem;
  }

  .hero-content {
    padding: 3rem 1rem;
  }

  .section-container {
    padding: 0 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .download-buttons {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

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

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-menu {
    width: 100vw;
    right: -100vw;
    padding: 1.5rem;
  }

  .nav-menu.active {
    right: 0;
  }

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

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .download-btn img {
    height: 50px;
  }

  .feature-card {
    padding: 1rem;
  }
}

/* Smooth animations */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}