.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--spacing-4) var(--spacing-6);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--text-primary);
  text-decoration: none;
}

.logo:hover {
  color: var(--text-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 18px;
  height: 18px;
  color: white;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

.nav-link {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--brand-start);
  background: var(--brand-light);
}

.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-20) var(--spacing-6) var(--spacing-12);
  overflow: hidden;
  background: linear-gradient(180deg, #F0EDFF 0%, var(--bg-primary) 60%);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(108, 92, 231, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 80% 50%, rgba(168, 85, 247, 0.04), transparent),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(0, 184, 148, 0.03), transparent);
  z-index: var(--z-base);
}

.hero-content {
  position: relative;
  z-index: var(--z-above);
  text-align: center;
  max-width: 1000px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  margin-bottom: var(--spacing-5);
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  animation: fadeInDown 0.6s ease-out;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--spacing-4);
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-title-gradient {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(var(--text-base), 1.6vw, var(--text-lg));
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: var(--spacing-6);
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-upload {
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.upload-zone {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin: 0 auto var(--spacing-5);
  padding: var(--spacing-8) var(--spacing-8);
  border: 2px dashed rgba(108, 92, 231, 0.2);
  border-radius: var(--radius-xl);
  background: var(--bg-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--brand-start);
  background: rgba(108, 92, 231, 0.03);
  box-shadow: 0 0 40px rgba(108, 92, 231, 0.08);
}

.upload-zone.dragover {
  transform: scale(1.02);
  border-style: solid;
}

.upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-3);
  border-radius: var(--radius-lg);
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
}

.upload-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.upload-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-2);
}

.upload-hint {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.upload-hint strong {
  color: var(--brand-start);
  font-weight: 600;
}

.upload-formats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  margin-top: var(--spacing-4);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.upload-format-tag {
  padding: 2px 8px;
  background: var(--brand-light);
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-10);
  margin-top: var(--spacing-8);
  animation: fadeInUp 0.6s ease-out 0.5s both;
}

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

.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--brand-start);
}

.hero-stat-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--spacing-1);
}

.how-it-works {
  background: var(--bg-secondary);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-8);
  margin-top: var(--spacing-12);
}

.step-card {
  text-align: center;
  padding: var(--spacing-8);
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-5);
  border-radius: 50%;
  background: var(--brand-gradient);
  color: white;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
}

.step-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.step-connector {
  position: absolute;
  top: 44px;
  left: calc(50% + 40px);
  width: calc(100% - 80px);
  height: 2px;
  background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
  opacity: 0.2;
}

.bento-section {
  background: var(--bg-primary);
}

.bento-header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: var(--spacing-4);
  max-width: 1000px;
  margin: 0 auto;
}

.bento-card {
  padding: var(--spacing-6);
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.03), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.bento-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.bento-card:hover::before {
  opacity: 1;
}

.bento-card-wide {
  grid-column: span 2;
}

.bento-card-tall {
  grid-row: span 2;
}

.bento-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-4);
  opacity: 0.9;
}

.bento-icon svg {
  width: 20px;
  height: 20px;
  color: white;
}

.bento-icon.accent {
  background: linear-gradient(135deg, var(--accent), #00B894);
}

.bento-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-2);
}

.bento-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.use-cases {
  background: var(--bg-secondary);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-5);
  margin-top: var(--spacing-12);
}

.use-case-card {
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  transition: all var(--transition-base);
}

.use-case-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.use-case-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-4);
}

.use-case-icon svg {
  width: 20px;
  height: 20px;
  color: var(--brand-start);
}

.use-case-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--spacing-2);
}

.use-case-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.formats-section {
  background: var(--bg-primary);
}

.formats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-8);
  margin-top: var(--spacing-12);
}

.formats-col h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
}

.format-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.format-tag {
  padding: var(--spacing-2) var(--spacing-4);
  background: var(--brand-light);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.format-tag:hover {
  border-color: var(--border-hover);
  color: var(--brand-start);
}

.why-section {
  background: var(--bg-secondary);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-5);
  margin-top: var(--spacing-12);
}

.why-card {
  display: flex;
  gap: var(--spacing-4);
  padding: var(--spacing-5);
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.why-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.why-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--brand-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.why-icon svg {
  width: 18px;
  height: 18px;
  color: var(--brand-start);
}

.why-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--spacing-1);
}

.why-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-section {
  background: var(--bg-primary);
}

.faq-list {
  max-width: 800px;
  margin: var(--spacing-12) auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--glass-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-5) 0;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--brand-start);
}

.faq-question svg {
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--spacing-4);
}

.faq-item.open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding-bottom: var(--spacing-5);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.8;
}

.cta-section {
  background: linear-gradient(135deg, #F0EDFF, #E8F5F0);
  text-align: center;
}

.cta-section .section-title {
  margin-bottom: var(--spacing-4);
}

.cta-section .section-desc {
  margin-bottom: var(--spacing-8);
}

.footer {
  padding: var(--spacing-10) var(--spacing-6);
  border-top: 1px solid var(--glass-border);
  background: var(--bg-primary);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-8);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--spacing-3);
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.footer-columns {
  display: flex;
  gap: var(--spacing-12);
}

.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
  color: var(--text-primary);
}

.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: var(--spacing-1) 0;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--brand-start);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-6);
  border-top: 1px solid var(--glass-border);
}

.footer-copy {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  gap: var(--spacing-6);
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer-link:hover {
  color: var(--brand-start);
}

@media (max-width: 768px) {
  .bento-grid {
    grid-template-columns: 1fr 1fr;
  }

  .bento-card-wide {
    grid-column: span 2;
  }

  .bento-card-tall {
    grid-row: span 1;
  }

  .nav {
    display: none;
  }

  .hero {
    padding: var(--spacing-16) var(--spacing-4) var(--spacing-8);
    min-height: auto;
  }

  .upload-zone {
    padding: var(--spacing-6) var(--spacing-4);
  }

  .hero-badge {
    margin-bottom: var(--spacing-3);
  }

  .hero-title {
    margin-bottom: var(--spacing-3);
  }

  .hero-subtitle {
    margin-bottom: var(--spacing-4);
  }

  .hero-stats {
    margin-top: var(--spacing-5);
    gap: var(--spacing-5);
  }

  .hero-actions {
    flex-direction: column;
    gap: var(--spacing-3);
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    gap: var(--spacing-6);
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }

  .step-connector {
    display: none;
  }

  .use-cases-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .footer-top {
    flex-direction: column;
  }

  .footer-columns {
    gap: var(--spacing-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-4);
    text-align: center;
  }
}

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

  .bento-card-wide {
    grid-column: span 1;
  }

  .upload-formats {
    flex-direction: column;
    gap: var(--spacing-2);
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-4);
  }
}

/* ============ Conversions Section ============ */
.conversions-section {
  padding: var(--spacing-24) 0;
  background: var(--bg-secondary);
}

.conversions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--spacing-5);
  margin-top: var(--spacing-12);
}

.conversion-card {
  display: block;
  padding: var(--spacing-6);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
}

.conversion-card:hover {
  border-color: var(--brand-start);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.conversion-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--brand-light);
  color: var(--brand-start);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: var(--spacing-4);
}

.conversion-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-2);
}

.conversion-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============ About / Trust Section (E-E-A-T) ============ */
.about-section {
  padding: var(--spacing-24) 0;
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-12);
  align-items: center;
}

.about-text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-4);
}

.about-trust {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3);
  margin-top: var(--spacing-6);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: 500;
}

.trust-item svg {
  color: var(--brand-start);
  flex-shrink: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4);
}

.about-stat-card {
  padding: var(--spacing-6);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.about-stat-card:hover {
  border-color: var(--brand-start);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.about-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--brand-start);
  margin-bottom: var(--spacing-1);
}

.about-stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .conversions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }

  .about-trust {
    grid-template-columns: 1fr;
  }
}

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