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

:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --primary-color: #667eea;
  --primary-dark: #764ba2;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
}

html {
  scroll-behavior: smooth;
}

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

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all 0.3s ease;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo span {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo small {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  opacity: 0.8;
}

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

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  background: linear-gradient(135deg, #f0f4ff 0%, #faf5ff 100%);
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: float 20s infinite ease-in-out;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: var(--primary-gradient);
  top: -200px;
  right: -100px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  bottom: -150px;
  left: -150px;
  animation-delay: -10s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -5s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-text {
  z-index: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: 50px;
  color: var(--primary-color);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

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

.hero-description {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-hero,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-hero {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
  background: white;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

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

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  padding: 10px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

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

.hero-stats {
  display: flex;
  gap: 48px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 32px;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Extension Mockup */
.hero-visual {
  position: relative;
  z-index: 1;
}

.extension-mockup {
  position: relative;
  animation: floatMockup 6s ease-in-out infinite;
}

@keyframes floatMockup {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.mockup-window {
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.mockup-header {
  display: flex;
  align-items: center;
  padding: 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.mockup-dots {
  display: flex;
  gap: 6px;
  margin-right: auto;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.mockup-title {
  font-weight: 600;
  font-size: 14px;
}

.mockup-content {
  padding: 24px;
}

.summary-preview {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.summary-style-selector {
  display: flex;
  gap: 8px;
}

.summary-style-selector button {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  background: white;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.summary-style-selector .style-active {
  background: var(--primary-gradient);
  color: white;
  border-color: transparent;
}

.summary-text {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: 8px;
}

.summary-item {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.mockup-btn {
  width: 100%;
  padding: 12px;
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

/* Browser Support */
.browser-support {
  padding: 40px 0;
  border-bottom: 1px solid var(--border-color);
}

.support-text {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.browser-icons {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.browser-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.browser-icon:hover {
  opacity: 1;
}

.browser-icon img {
  width: 48px;
  height: 48px;
}

.browser-icon span {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Features Section */
.features {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 50px;
  color: var(--primary-color);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 20px;
  color: var(--text-secondary);
}

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

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

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

/* How It Works */
.how-it-works {
  padding: 120px 0;
  background: var(--bg-secondary);
}

.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-top: 64px;
}

.step {
  flex: 1;
  max-width: 300px;
  text-align: center;
}

.step-number {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  color: white;
  font-size: 28px;
  font-weight: 800;
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.step-content h3 {
  font-size: 24px;
  margin-bottom: 12px;
  font-weight: 700;
}

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

.step-arrow {
  font-size: 32px;
  color: var(--primary-color);
  font-weight: 300;
}

/* Pricing */
.pricing {
  padding: 120px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  padding: 40px 32px;
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 20px;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--primary-color);
  box-shadow: 0 12px 40px rgba(102, 126, 234, 0.2);
  transform: scale(1.05);
}

.pricing-card.featured:hover {
  transform: scale(1.08) translateY(-8px);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  background: var(--primary-gradient);
  color: white;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.savings-badge {
  position: absolute;
  top: -12px;
  right: 16px;
  padding: 6px 16px;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: white;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-header {
  text-align: center;
  margin-bottom: 32px;
}

.pricing-header h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
}

.price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.price-amount {
  font-size: 48px;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.price-period {
  color: var(--text-secondary);
  font-size: 18px;
}

.price-note {
  margin-top: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 12px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.btn-pricing {
  display: block;
  width: 100%;
  padding: 16px;
  text-align: center;
  text-decoration: none;
  font-weight: 600;
  border-radius: 12px;
  transition: all 0.3s ease;
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  background: white;
}

.btn-pricing:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.btn-pricing.primary {
  background: var(--primary-gradient);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn-pricing.primary:hover {
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

/* Testimonials */
.testimonials {
  padding: 120px 0;
  background: var(--bg-secondary);
}

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

.testimonial-card {
  padding: 32px;
  background: white;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}

.testimonial-rating {
  font-size: 20px;
  margin-bottom: 16px;
}

.testimonial-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.testimonial-author strong {
  color: var(--text-primary);
  font-weight: 700;
}

.testimonial-author span {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Download Section */
.download {
  padding: 100px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
}

.download-content h2 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
}

.download-content p {
  font-size: 20px;
  opacity: 0.9;
  margin-bottom: 48px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 32px;
  background: white;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.download-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.download-btn svg,
.download-btn img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.download-btn.chrome svg {
  color: #4285F4;
}

.download-btn.firefox svg {
  color: #FF7139;
}

.download-btn.edge svg {
  color: #0078D7;
}

.download-btn div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.download-btn span {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.download-btn strong {
  font-size: 18px;
  color: var(--text-primary);
}

.download-note {
  font-size: 14px;
  opacity: 0.8;
}

/* Footer */
.footer {
  padding: 80px 0 32px;
  background: #1a202c;
  color: white;
}

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

.footer-section h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: white;
}

.footer-section a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  margin-top: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero h1 {
    font-size: 48px;
  }

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

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }

  .steps {
    flex-direction: column;
  }

  .step-arrow {
    transform: rotate(90deg);
  }
}

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

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 36px;
  }

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

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

  .hero-stats {
    gap: 32px;
  }

  .section-header h2 {
    font-size: 36px;
  }

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

  .pricing-card.featured {
    transform: scale(1);
  }

  .download-content h2 {
    font-size: 36px;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 28px;
  }

  .hero-description {
    font-size: 16px;
  }

  .btn-hero,
  .btn-secondary {
    padding: 12px 24px;
    font-size: 14px;
  }

  .stat-number {
    font-size: 24px;
  }
}

/* Demo Modal */
.demo-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.demo-modal.active {
  display: flex;
}

.demo-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
}

.demo-modal-content {
  position: relative;
  width: 90%;
  max-width: 1000px;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.demo-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  background: rgba(0, 0, 0, 0.7);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background 0.2s ease, transform 0.2s ease;
  line-height: 1;
}

.demo-modal-close:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

.demo-modal-body {
  padding: 0;
}

@media (max-width: 768px) {
  .demo-modal-content {
    width: 95%;
    border-radius: 12px;
  }
  
  .demo-modal-close {
    top: 8px;
    right: 8px;
    width: 36px;
    height: 36px;
    font-size: 24px;
  }
}