:root {
  --primary-color: #dc2626;
  --primary-gradient: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
  --secondary-color: #000000;
  --accent-color: #ffffff;
  --light-gray: #f8f9fa;
  --dark-gray: #374151;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --text-gradient: linear-gradient(135deg, #dc2626 0%, #991b1b 50%, #ffffff 100%);
  --shadow-primary: 0 20px 40px rgba(220, 38, 38, 0.3);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Roboto', 'Open Sans', sans-serif;
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
  background: #000;
}

/* Hero Section */
.ppf-hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a0a1a 25%, #2a1a2a 75%, #0a0a0a 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
      radial-gradient(2px 2px at 20% 30%, rgba(220, 38, 38, 0.4), transparent),
      radial-gradient(2px 2px at 40% 70%, rgba(255, 255, 255, 0.1), transparent),
      radial-gradient(1px 1px at 90% 40%, rgba(220, 38, 38, 0.3), transparent);
  background-repeat: repeat;
  background-size: 150px 100px;
  animation: particleFloat 25s linear infinite;
  opacity: 0.8;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0, 0, 0, 0.4) 100%);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(220, 38, 38, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.5s both;
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease 0.7s both;
  color: white;
}

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

.hero-subtitle {
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.9s both;
}

.hero-features {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease 1.1s both;
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
  color: white;
  box-shadow: 0 10px 25px rgba(220, 38, 38, 0.4);
}

.feature-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

/* About PPF Section */
.about-ppf {
  background: linear-gradient(135deg, #1a1a1a 0%, #2a1a2a 50%, #1a1a1a 100%);
  padding: 8rem 0;
  position: relative;
}

.about-content {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 3rem;
  color: white;
}

.about-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.benefit-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  color: white;
}

.benefit-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 60px rgba(220, 38, 38, 0.2);
}

.benefit-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
  box-shadow: 0 15px 40px rgba(220, 38, 38, 0.4);
}

/* Application Areas */
.application-areas {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a0a1a 25%, #2a1a2a 75%, #0a0a0a 100%);
  padding: 8rem 0;
}

.area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.area-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
  color: white;
}

.area-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 60px rgba(220, 38, 38, 0.2);
}

.area-image {
  height: 200px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: white;
}

.area-content {
  padding: 2rem;
}

.area-list {
  list-style: none;
  padding: 0;
}

.area-list li {
  display: flex;
  align-items: center;
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
}

.area-list li i {
  color: var(--primary-color);
  margin-right: 0.8rem;
  width: 16px;
}

/* Technology Section */
.technology-section {
  background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 50%, #1a1a1a 100%);
  padding: 8rem 0;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.tech-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 2.5rem;
  transition: all 0.3s ease;
  color: white;
}

.tech-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 25px 60px rgba(220, 38, 38, 0.2);
}

.tech-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  color: white;
  box-shadow: 0 15px 40px rgba(220, 38, 38, 0.4);
}

/* Package Options */
.package-section {
  background: linear-gradient(135deg, #2a1a2a 0%, #1a0a1a 50%, #0a0a0a 100%);
  padding: 8rem 0;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.package-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 3rem;
  text-align: center;
  transition: all 0.3s ease;
  color: white;
  position: relative;
}

.package-card.premium {
  border-color: rgba(255, 215, 0, 0.5);
  position: relative;
}


.package-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  color: #000;
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.package-card:hover {
  transform: translateY(-15px);
  box-shadow: 0 30px 60px rgba(220, 38, 38, 0.3);
}

.package-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.package-features {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  text-align: left;
}

.package-features li {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.package-features li i {
  color: var(--primary-color);
  margin-right: 1rem;
  width: 20px;
}

.btn-package {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.2rem 2.5rem;
  background: var(--primary-gradient);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  width: 100%;
  justify-content: center;
}

.btn-package:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(220, 38, 38, 0.5);
  color: white;
}

.btn-package.premium {
  background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
  color: #000;
}

.btn-package.premium:hover {
  box-shadow: 0 15px 40px rgba(255, 215, 0, 0.4);
  color: #000;
}

/* Process Section */
.process-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 8rem 0;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.process-step {
  position: relative;
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border-top: 4px solid var(--primary-color);
}

.process-step:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
  position: absolute;
  top: -25px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  background: var(--primary-gradient);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: 0 5px 15px rgba(220, 38, 38, 0.4);
}

/* FAQ Section */
.faq-section {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a0a1a 25%, #2a1a2a 75%, #0a0a0a 100%);
  padding: 8rem 0;
}

.faq-item {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  margin-bottom: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(220, 38, 38, 0.3);
}

.faq-question {
  padding: 1.5rem;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  padding: 0 1.5rem 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  display: none;
}

.faq-answer.show {
  display: block;
  animation: fadeInUp 0.3s ease;
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
  padding: 6rem 0;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.cta-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
      radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, 0.2), transparent),
      radial-gradient(1px 1px at 80% 70%, rgba(255, 255, 255, 0.1), transparent);
  background-repeat: repeat;
  background-size: 50px 40px;
  animation: particleFloat 20s linear infinite;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.2rem 2.5rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  color: white;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-cta:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
  color: white;
}

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

@keyframes particleFloat {
  0% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-20px) translateX(10px); }
  100% { transform: translateY(0) translateX(0); }
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
      font-size: 2.5rem;
  }
  
  .hero-features {
      flex-direction: column;
      gap: 1.5rem;
  }
  
  .benefit-grid,
  .area-grid,
  .tech-grid,
  .package-grid {
      grid-template-columns: 1fr;
  }
  
  .about-content {
      padding: 2rem;
  }
  
  .process-timeline {
      grid-template-columns: 1fr;
  }
}

/* Comparison Table */
.comparison-section {
  background: linear-gradient(135deg, #1a1a1a 0%, #2a1a2a 50%, #1a1a1a 100%);
  padding: 8rem 0;
}

.comparison-table {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  overflow: hidden;
  margin-top: 3rem;
}

.comparison-table th,
.comparison-table td {
  padding: 1.5rem;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
}

.comparison-table th {
  background: rgba(220, 38, 38, 0.2);
  font-weight: 600;
  font-size: 1.1rem;
}

.comparison-table .check {
  color: #22c55e;
  font-size: 1.5rem;
}

.comparison-table .cross {
  color: #ef4444;
  font-size: 1.5rem;
}

.highlight-cell {
  background: rgba(220, 38, 38, 0.1);
  font-weight: 600;
}