:root {
  --orange-primary: #FF6B00;
  --orange-light: #FF8533;
  --orange-dark: #CC5500;
  --orange-glow: rgba(255, 107, 0, 0.15);
  --bg-dark: #0d0d0d;
  --bg-card: #1a1a1a;
  --bg-alt: #141414;
  --text-primary: #f5f5f5;
  --text-secondary: #b0b0b0;
  --border-color: #2a2a2a;
  --radius: 12px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.4rem;
  font-weight: 700;
}

.logo-svg {
  width: 36px;
  height: 36px;
}

.accent {
  color: var(--orange-primary);
}

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

.main-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--orange-primary);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--orange-primary);
  border-radius: 2px;
}

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

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--orange-primary);
  transition: var(--transition);
}

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

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  background: radial-gradient(ellipse at top, var(--orange-glow), transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.8rem;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary), var(--orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

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

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--orange-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 107, 0, 0.3);
}

.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 107, 0, 0.4);
}

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

.btn-secondary:hover {
  background: var(--orange-primary);
  color: #fff;
}

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

.hero-svg {
  width: 100%;
  max-width: 400px;
  height: auto;
}

.hero-img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius);
  border: 2px solid var(--orange-primary);
}

/* Sections */
.section {
  padding: 70px 0;
}

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

.section h2 {
  font-size: 2.2rem;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.section h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--orange-primary);
  margin-top: 12px;
  border-radius: 2px;
}

.section h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--orange-light);
}

.section p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* Page Header */
.page-header {
  padding: 60px 0 40px;
  background: radial-gradient(ellipse at top, var(--orange-glow), transparent 70%);
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Two Column */
.two-col {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 50px;
  align-items: center;
}

.content-visual {
  display: flex;
  justify-content: center;
}

.content-img {
  width: 100%;
  max-width: 350px;
  border-radius: var(--radius);
  border: 2px solid var(--orange-primary);
}

.content-visual svg {
  width: 100%;
  max-width: 350px;
  height: auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--orange-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(255, 107, 0, 0.1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
}

.feature-card h3 {
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
}

/* Comparison Table */
.table-wrapper {
  overflow-x: auto;
  margin-top: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.comparison-table th {
  background: var(--bg-card);
  color: var(--orange-primary);
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--orange-primary);
}

.comparison-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.comparison-table tr:hover td {
  background: rgba(255, 107, 0, 0.05);
  color: var(--text-primary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

/* Steps List */
.steps-list {
  list-style: none;
  counter-reset: step-counter;
  margin-top: 24px;
}

.steps-list li {
  counter-increment: step-counter;
  position: relative;
  padding: 24px 24px 24px 70px;
  margin-bottom: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.steps-list li:hover {
  border-color: var(--orange-primary);
}

.steps-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 20px;
  top: 24px;
  width: 36px;
  height: 36px;
  background: var(--orange-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.steps-list h3 {
  margin-bottom: 8px;
}

/* FAQ */
.faq-list {
  margin-top: 24px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item[open] {
  border-color: var(--orange-primary);
}

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
}

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

.faq-item summary::after {
  content: '+';
  margin-left: auto;
  font-size: 1.5rem;
  color: var(--orange-primary);
  transition: transform var(--transition);
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.faq-item h3 {
  margin: 0;
  font-size: 1.1rem;
}

.faq-content {
  padding: 0 24px 20px 68px;
}

.faq-content p {
  color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
  padding: 70px 0;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-alt));
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.cta-section h2 {
  margin-bottom: 16px;
}

.cta-section h2::after {
  margin: 12px auto 0;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 28px;
}

.cta-section .hero-buttons {
  justify-content: center;
}

/* Footer */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border-color);
  padding: 50px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}

.footer-text {
  margin-top: 12px;
  font-size: 0.9rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  .main-nav {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: var(--bg-dark);
      flex-direction: column;
      padding: 20px;
      border-bottom: 1px solid var(--border-color);
  }

  .main-nav.active {
      display: flex;
  }

  .main-nav a {
      padding: 12px 0;
  }

  .menu-toggle {
      display: flex;
  }

  .hero-grid,
  .two-col,
  .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
  }

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

  .section h2 {
      font-size: 1.7rem;
  }

  .hero {
      padding: 50px 0 40px;
  }

  .section {
      padding: 50px 0;
  }

  .faq-content {
      padding-left: 24px;
  }
}

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

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

  .btn {
      text-align: center;
  }
}