/* FileLens Landing Page - Theme 3: Material Design 3 */

/* Theme selector styling */
.theme-selector {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--surface);
  border: 1px solid var(--surface-variant);
  border-radius: 28px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
  z-index: 1000;
  font-size: 14px;
}

.theme-selector-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.theme-btn {
  padding: 8px 16px;
  background: transparent;
  border: none;
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.theme-btn:hover {
  color: var(--primary);
  background: var(--primary-container);
}

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

.theme-btn.mode-btn {
  padding: 8px 12px;
}

.theme-divider {
  color: var(--surface-variant);
}

/* Header - Material */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--text);
}

.logo img {
  border-radius: 12px;
}

.nav {
  display: flex;
  gap: 8px;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 20px;
  transition: all 0.2s;
}

.nav a:hover {
  color: var(--primary);
  background: var(--primary-container);
}

/* Hero Section - Material */
.hero {
  padding-top: 100px;
  padding-bottom: 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--primary-container) 0%, var(--bg) 50%);
}

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

.hero-content {
  max-width: 480px;
}

.hero-badge {
  margin-bottom: 20px;
}

.hero-badge .badge {
  background: var(--tertiary-container);
  color: var(--tertiary);
}

.hero-icon {
  margin-bottom: 20px;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0, 109, 59, 0.2);
}

.hero-title {
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.hero-features {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: var(--surface-variant);
  padding: 8px 14px;
  border-radius: 8px;
}

.hero-feature svg {
  color: var(--primary);
}

.hero-cta {
  font-size: 0.9375rem;
  padding: 14px 28px;
  border-radius: 20px;
}

.hero-mockup {
  display: flex;
  justify-content: center;
}

.hero-mockup .device-mockup {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* Section headers - Material */
.section-header {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 48px;
}

.section-header h2 {
  margin-bottom: 12px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
}

.section-header p {
  font-size: 1rem;
}

/* Features Section - Material */
.features {
  background: var(--bg);
  padding: 80px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--surface-variant);
  padding: 24px;
  border-radius: 16px;
  transition: all 0.2s;
}

.feature-card:hover {
  background: var(--primary-container);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Screenshots Section - Material */
.screenshots {
  padding: 80px 0;
  background: var(--surface-variant);
}

[data-theme="dark"] .screenshots {
  background: var(--surface-variant);
}

.screenshots-info {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 40px;
}

.mockups-container {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.mockup-group {
  background: var(--surface);
  padding: 32px;
  border-radius: 24px;
}

.mockup-group-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mockup-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.mockup-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.mockup-wrapper::after {
  content: attr(data-label);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-variant);
  padding: 4px 12px;
  border-radius: 8px;
}

.mockup-wrapper .device-mockup {
  transition: transform 0.2s;
}

.mockup-wrapper:hover .device-mockup {
  transform: scale(1.02);
}

/* Privacy Section - Material */
.privacy {
  background: var(--bg);
  padding: 80px 0;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.privacy-card {
  background: var(--surface-variant);
  padding: 32px 24px;
  border-radius: 16px;
  text-align: center;
}

.privacy-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.privacy-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.privacy-card p {
  font-size: 0.875rem;
  line-height: 1.5;
}

.privacy-cta {
  text-align: center;
}

.privacy-cta .btn-outline {
  border-radius: 20px;
}

/* CTA Section - Material */
.cta {
  padding: 80px 0;
  text-align: center;
  background: var(--primary-container);
}

[data-theme="dark"] .cta {
  background: var(--surface-variant);
}

.cta-content {
  max-width: 440px;
  margin: 0 auto;
}

.cta-icon {
  margin-bottom: 20px;
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(0, 109, 59, 0.2);
}

.cta h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.cta p {
  font-size: 1rem;
  margin-bottom: 28px;
}

.cta .btn-primary {
  border-radius: 20px;
}

/* Footer - Material */
.site-footer {
  background: var(--surface-variant);
  padding: 40px 0;
}

[data-theme="dark"] .site-footer {
  background: var(--surface-variant);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}

.footer-brand img {
  border-radius: 10px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}

.footer-nav a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding: 8px 14px;
  border-radius: 20px;
}

.footer-nav a:hover {
  color: var(--primary);
  background: var(--primary-container);
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Responsive - Material */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-features {
    justify-content: center;
  }

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

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

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

  .hero {
    padding-top: 100px;
    padding-bottom: 60px;
    min-height: auto;
  }

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

  .mockup-group {
    padding: 20px;
  }

  .mockup-row {
    gap: 20px;
  }

  .theme-selector {
    bottom: 16px;
    padding: 8px 12px;
    gap: 4px;
  }

  .theme-selector-label {
    display: none;
  }

  .theme-btn {
    padding: 6px 10px;
    font-size: 12px;
  }
}