:root {
  --primary: #0066cc;
  --primary-dark: #0052a3;
  --primary-light: #0077e6;
  --secondary: #1a1a2e;
  --accent: #ff6b35;
  --accent-hover: #e55a2b;
  --background: #0d1117;
  --surface: #161b22;
  --surface-light: #21262d;
  --surface-hover: #30363d;
  --text: #f0f6fc;
  --text-muted: #8b949e;
  --text-secondary: #c9d1d9;
  --border: #30363d;
  --success: #3fb950;
  --gradient: linear-gradient(135deg, #0066cc 0%, #00d4ff 100%);
  --gradient-warm: linear-gradient(135deg, #0066cc 0%, #0099cc 50%, #00d4ff 100%);
  --shadow: 0 4px 20px rgba(0, 102, 204, 0.15);
  --shadow-lg: 0 8px 40px rgba(0, 102, 204, 0.2);
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  border: none;
  cursor: pointer;
  font-family: inherit;
}

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

section {
  padding: 80px 0;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.header.scrolled {
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Header on non-home pages */
body:not(.home-page) .header {
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--text);
  letter-spacing: -0.5px;
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

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

.nav-desktop {
  display: none;
  gap: 8px;
}

.nav-desktop a {
  padding: 10px 18px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.nav-desktop a:hover {
  color: var(--text);
  background: var(--surface-light);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  padding: 10px;
  border-radius: var(--radius);
}

.nav-toggle:hover {
  background: var(--surface-light);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.nav-mobile {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.nav-mobile.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.nav-mobile a {
  padding: 14px 18px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-mobile a:hover {
  background: var(--surface-light);
  color: var(--text);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
  background: 
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 102, 204, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 40%),
    var(--background);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(13, 17, 23, 0.2) 0%, rgba(13, 17, 23, 0.5) 100%);
  z-index: 1;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -1px;
  line-height: 1.15;
}

.hero h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 102, 204, 0.4);
}

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

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(0, 102, 204, 0.1);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary-light);
}

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

.btn-large {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 50px;
  flex-wrap: wrap;
}

.hero-devices {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-device {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.82);
  border-radius: 60px;
  transition: all 0.3s ease;
}

.hero-device:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.hero-device img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Features Section */
.features {
  background: var(--surface);
}

.features h2 {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 50px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 50px;
}

.feature-card {
  background: var(--surface-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s ease;
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  border-radius: 14px;
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.feature-card h4 {
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.review-content h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--text);
}

/* Pricing Section */
.pricing-preview {
  background: var(--background);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 50px;
}

@media (max-width: 1200px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.pricing-card.featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, var(--surface) 0%, rgba(0, 102, 204, 0.08) 100%);
  transform: scale(1.02);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-4px);
}

.pricing-card .badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: white;
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  z-index: 2;
}

.discount-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #e74c3c;
  color: white;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 2;
}

.pricing-header {
  text-align: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.pricing-header h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
}

.price .original {
  font-size: 1.1rem;
  text-decoration: line-through;
  color: var(--text-muted);
  margin-right: 8px;
  font-weight: 500;
}

.price-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.price-note {
  text-align: center;
  margin-top: 30px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.pricing-header {
  text-align: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.pricing-header h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text);
}

.price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.pricing-features {
  margin-bottom: 28px;
}

.pricing-features li {
  padding: 12px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.pricing-features li::before {
  content: '✓';
  color: var(--success);
  font-weight: bold;
}

.pricing-card .btn {
  width: 100%;
}

/* Reviews Section */
.reviews {
  background: var(--surface);
  overflow: hidden;
  padding: 80px 0;
}

.reviews h2 {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.reviews-slider {
  overflow: hidden;
  padding: 20px 0;
}

.reviews-track {
  display: flex;
  gap: 30px;
  animation: scroll-reviews 50s linear infinite;
  width: max-content;
  padding: 20px 0;
}

@keyframes scroll-reviews {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.review-card {
  flex: 0 0 320px;
  background: var(--surface-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.review-device {
  width: 180px;
  height: 380px;
  background: var(--background);
  border-radius: 24px;
  overflow: hidden;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--surface-light);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.review-device img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.review-placeholder {
  font-size: 3rem;
  opacity: 0.2;
}

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

.review-stars {
  color: #ffd700;
  font-size: 1.1rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
  font-style: italic;
}

.review-author {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.reviews-slider:hover .reviews-track {
  animation-play-state: paused;
}

/* Devices Section */
.devices {
  background: var(--background);
}

.devices-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 50px;
}

.device-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.device-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.device-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 16px;
}

.device-icon-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  margin: 0 auto 16px;
  display: block;
}

.device-card h4 {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: var(--text);
}

.device-card h5 {
  color: var(--primary-light);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.device-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* FAQ Section */
.faq {
  background: var(--surface);
}

.faq-list {
  max-width: 800px;
  margin: 50px auto 0;
}

.faq-item {
  background: var(--surface-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  transition: background 0.2s ease;
}

.faq-item summary:hover {
  background: var(--surface-hover);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  transition: transform 0.3s ease;
  font-weight: 400;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 24px 20px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* CTA Section */
.cta {
  padding: 100px 0;
  text-align: center;
  background: 
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(0, 102, 204, 0.15) 0%, transparent 60%),
    var(--background);
}

.cta h2 {
  font-size: 2.2rem;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta p {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 1.1rem;
}

/* Footer */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--text);
}

.footer-col ul li {
  margin-bottom: 14px;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--primary-light);
}

.footer-col p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
  z-index: 1000;
  transition: all 0.3s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.45);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
}

.whatsapp-float::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid #25d366;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* Blog Page */
.blog-hero {
  padding: 140px 0 60px;
  text-align: center;
  background: var(--surface);
}

.blog-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.blog-hero p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
  padding: 60px 0;
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
}

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

.blog-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--surface-light);
}

.blog-card-content {
  padding: 24px;
}

.blog-card-date {
  font-size: 0.8rem;
  color: var(--primary-light);
  margin-bottom: 8px;
  display: block;
  font-weight: 500;
}

.blog-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text);
  line-height: 1.4;
}

.blog-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-light);
  font-weight: 600;
  margin-top: 16px;
  font-size: 0.95rem;
  transition: gap 0.2s ease;
}

.blog-card:hover .blog-card-link {
  gap: 10px;
  color: var(--primary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* Responsive */
@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
    gap: 4px;
  }

  .nav-toggle {
    display: none;
  }

  .hero-stats {
    gap: 70px;
  }

  .stat-number {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 100px;
    padding-bottom: 60px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-stats {
    gap: 30px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  section {
    padding: 60px 0;
  }

  .pricing-card.featured {
    order: -1;
  }

  .whatsapp-float {
    width: 52px;
    height: 52px;
    bottom: 20px;
    right: 20px;
  }

  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }

  .review-card {
    flex: 0 0 280px;
  }

  .container {
    padding: 0 20px;
  }

  section .container > *:not(.pricing-grid):not(.features-grid):not(.reviews-slider) {
    text-align: center;
  }

  section .container h1,
  section .container h2,
  section .container p {
    text-align: center;
  }

  .hero p {
    text-align: center;
    max-width: 100%;
  }

  .features-grid,
  .pricing-grid {
    text-align: center;
  }

  .pricing-card {
    text-align: left;
  }

  .features h2,
  .pricing h2,
  .reviews h2,
  .blog-hero h1,
  .blog-hero p {
    text-align: center;
  }

  .features p,
  .pricing p,
  .blog-hero p {
    text-align: center;
    max-width: 100%;
  }

  .footer {
    text-align: center;
  }

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

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

  .footer-links {
    justify-content: center;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }