:root {
  --primary: #ff4b4b;
  --secondary: #4a90e2;
  --background: #f5f5f5;
  --surface: #ffffff;
  --text: #333333;
  --text-secondary: #666666;
  --border: #e0e0e0;
  --spacing-xs: 4px;
  --spacing-s: 8px;
  --spacing-m: 16px;
  --spacing-l: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 64px;
  --border-radius-s: 4px;
  --border-radius-m: 8px;
  --border-radius-l: 12px;
  --border-radius-xl: 20px;
  --border-radius-round: 9999px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--background);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-m);
}

header {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-m) var(--spacing-l);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-s);
  text-decoration: none;
  color: var(--text);
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-m);
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
}

.lang-switcher {
  display: flex;
  gap: var(--spacing-s);
}

.lang-btn {
  padding: var(--spacing-s) var(--spacing-m);
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  border-radius: var(--border-radius-round);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
}

.lang-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.lang-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.hero {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  background: linear-gradient(135deg, #ff6b9d 0%, var(--primary) 100%);
  color: white;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h2 {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: var(--spacing-m);
  animation: fadeInUp 0.8s ease;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.app-icon-large {
  width: 120px;
  height: 120px;
  border-radius: var(--border-radius-l);
  margin-bottom: var(--spacing-l);
  animation: fadeInDown 0.8s ease;
  box-shadow: var(--shadow-lg);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-m);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-s);
  padding: var(--spacing-m) var(--spacing-xl);
  background: white;
  color: var(--primary);
  border-radius: var(--border-radius-round);
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-md);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.features {
  padding: var(--spacing-xxl) 0;
  background: var(--surface);
}

.features h3 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--background);
  border-radius: var(--border-radius-l);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-m);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #ff6b9d);
  border-radius: var(--border-radius-round);
}

.feature-icon svg {
  width: 30px;
  height: 30px;
  color: white;
}

.feature-card h4 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-s);
  color: var(--text);
}

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

.screenshots {
  padding: var(--spacing-xxl) 0;
  background: var(--background);
}

.screenshots h3 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text);
}

.screenshot-container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-l);
}

.screenshot-card {
  background: var(--surface);
  border-radius: var(--border-radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.screenshot-card:hover {
  transform: scale(1.02);
}

.screenshot-card img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  background: linear-gradient(135deg, #e0e0e0 0%, #f5f5f5 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-card p {
  padding: var(--spacing-m);
  text-align: center;
  font-weight: 500;
  color: var(--text-secondary);
}

.download {
  padding: var(--spacing-xxl) 0;
  background: var(--surface);
  text-align: center;
}

.download h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-xl);
  color: var(--text);
}

.download-buttons {
  display: flex;
  gap: var(--spacing-l);
  justify-content: center;
  flex-wrap: wrap;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-m);
  padding: var(--spacing-m) var(--spacing-xl);
  background: var(--text);
  color: white;
  border-radius: var(--border-radius-m);
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.download-btn svg {
  width: 24px;
  height: 24px;
}

.contact {
  padding: var(--spacing-xxl) 0;
  background: var(--background);
  text-align: center;
}

.contact h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-l);
  color: var(--text);
}

.contact p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-m);
}

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

.contact a:hover {
  color: #ff6b9d;
}

footer {
  background: var(--surface);
  padding: var(--spacing-xl) 0;
  text-align: center;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

footer p {
  margin-bottom: var(--spacing-s);
}

footer a {
  color: var(--primary);
  text-decoration: none;
  margin: 0 var(--spacing-s);
  transition: color 0.3s ease;
}

footer a:hover {
  color: #ff6b9d;
}

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 2rem;
  }

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

  .app-icon-large {
    width: 80px;
    height: 80px;
  }

  .features h3,
  .screenshots h3,
  .download h3,
  .contact h3 {
    font-size: 1.5rem;
  }

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

  .screenshot-container {
    grid-template-columns: 1fr;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }

  .header-content {
    flex-direction: column;
    gap: var(--spacing-m);
  }
}

/* Privacy Policy Specific Styles */
.policy-section {
  padding: var(--spacing-xxl) 0;
  background: var(--surface);
}

.policy-section h3 {
  font-size: 1.75rem;
  color: var(--text);
  margin-bottom: var(--spacing-m);
  margin-top: var(--spacing-xl);
  border-bottom: 2px solid var(--primary);
  padding-bottom: var(--spacing-s);
}

.policy-section h3:first-of-type {
  margin-top: 0;
}

.policy-section h4 {
  font-size: 1.25rem;
  color: var(--text);
  margin-bottom: var(--spacing-s);
  margin-top: var(--spacing-l);
}

.policy-section p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-m);
  line-height: 1.8;
}

.policy-section ul {
  margin: var(--spacing-m) 0 var(--spacing-m) var(--spacing-l);
  color: var(--text-secondary);
}

.policy-section ul li {
  margin-bottom: var(--spacing-s);
  line-height: 1.8;
}

.policy-section a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.policy-section a:hover {
  color: #ff6b9d;
}

.policy-section strong {
  color: var(--text);
  font-weight: 600;
}

.contact-section {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-l);
  background: var(--background);
  border-radius: var(--border-radius-m);
  border-left: 4px solid var(--primary);
}

.contact-section p {
  margin-bottom: var(--spacing-s);
}