/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #06b6d4;
  --primary-dark: #0891b2;
  --secondary: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;
  --white: #ffffff;
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--neutral-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.navbar {
  background: var(--white);
  border-bottom: 1px solid var(--neutral-200);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.9);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--neutral-900);
  font-weight: 700;
  font-size: 20px;
}

.logo-text {
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--neutral-600);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--primary);
}

/* Hero Section */
.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  color: var(--white);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* App Preview Image */
.app-preview-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

.app-preview-image:hover {
  transform: translateY(-4px);
}

/* Features Section */
.features {
  padding: 100px 0;
  background: var(--neutral-50);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-size: 42px;
  font-weight: 800;
  color: var(--neutral-900);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 20px;
  color: var(--neutral-600);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  padding: 32px;
  border-radius: 16px;
  border: 1px solid var(--neutral-200);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  border-color: var(--primary);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--neutral-600);
  line-height: 1.6;
}

/* How It Works */
.how-it-works {
  padding: 100px 0;
  background: var(--white);
}

.steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}

.step {
  display: flex;
  gap: 24px;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 12px;
}

.step-content p {
  color: var(--neutral-600);
  line-height: 1.6;
}

/* Download Section */
.download {
  padding: 100px 0;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-dark) 100%
  );
  text-align: center;
}

.download-title {
  font-size: 42px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.download-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 48px;
}

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

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--white);
  color: var(--primary);
  padding: 16px 32px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  transition: all 0.2s;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.btn-label {
  font-size: 14px;
  color: var(--neutral-600);
  display: block;
}

.btn-store {
  font-size: 20px;
  font-weight: 700;
  display: block;
}

/* Footer */
.footer {
  background: var(--neutral-900);
  color: var(--neutral-400);
  padding: 64px 0 32px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-tagline {
  color: var(--neutral-400);
  font-size: 16px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.footer-column h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-column a {
  display: block;
  color: var(--neutral-400);
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.2s;
}

.footer-column a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--neutral-800);
}

.footer-bottom p {
  color: var(--neutral-500);
}

/* Privacy Policy Page */
.privacy-content {
  padding: 80px 0 100px;
  background: var(--neutral-50);
  min-height: calc(100vh - 200px);
}

.privacy-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  padding: 64px;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
}

.privacy-wrapper h1 {
  font-size: 42px;
  font-weight: 800;
  color: var(--neutral-900);
  margin-bottom: 12px;
}

.last-updated {
  color: var(--neutral-500);
  font-size: 16px;
  margin-bottom: 48px;
}

.privacy-section {
  margin-bottom: 48px;
}

.privacy-section h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--neutral-200);
}

.privacy-section h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--neutral-900);
  margin: 24px 0 12px;
}

.privacy-section p {
  color: var(--neutral-700);
  line-height: 1.8;
  margin-bottom: 16px;
}

.privacy-section ul {
  margin: 16px 0;
  padding-left: 24px;
}

.privacy-section li {
  color: var(--neutral-700);
  line-height: 1.8;
  margin-bottom: 8px;
}

.privacy-footer {
  text-align: center;
  margin-top: 64px;
}

/* Responsive Design */
@media (max-width: 968px) {
  .hero-content,
  .features-grid,
  .steps,
  .footer-content,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 40px;
  }

  .section-title {
    font-size: 32px;
  }

  .features {
    padding: 64px 0;
  }

  .how-it-works {
    padding: 64px 0;
  }

  .download {
    padding: 64px 0;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-link {
    font-size: 14px;
  }

  .privacy-wrapper {
    padding: 32px;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .section-title {
    font-size: 28px;
  }

  .app-preview-image {
    max-width: 100%;
  }

  .footer-content {
    gap: 32px;
  }

  .footer-links {
    gap: 32px;
  }

  .privacy-wrapper {
    padding: 24px;
  }

  .privacy-wrapper h1 {
    font-size: 32px;
  }

  .privacy-section h2 {
    font-size: 24px;
  }

  .nav-links {
    display: none;
  }
}