/* Global Design System & Variables */
:root {
  --bg-primary: #030712;
  --bg-secondary: rgba(17, 24, 39, 0.7);
  --bg-tertiary: rgba(31, 41, 55, 0.5);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(96, 165, 250, 0.3);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --primary-glow: rgba(59, 130, 246, 0.15);
  --accent-blue: #3b82f6;
  --accent-light-blue: #60a5fa;
  --accent-white: #ffffff;
  
  --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --card-radius: 16px;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  background-image: linear-gradient(180deg, rgba(3, 7, 18, 0.6) 0%, #030712 100%), url('../images/aries-bg.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(3, 7, 18, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-white);
  text-decoration: none;
  background: linear-gradient(135deg, #ffffff 40%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-icon {
  font-size: 1.8rem;
  color: var(--accent-light-blue);
  background: none;
  -webkit-text-fill-color: initial;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: var(--accent-light-blue);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-blue) 0%, #2563eb 100%);
  color: var(--accent-white);
  text-decoration: none;
  font-weight: 600;
  padding: 0.6rem 1.4rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  transition: var(--transition-smooth);
  font-size: 0.9rem;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  background: linear-gradient(135deg, var(--accent-light-blue) 0%, var(--accent-blue) 100%);
}

.cta-btn.nav-cta {
  margin-left: 1rem;
}

/* Hero Section */
.hero {
  padding-top: 160px;
  padding-bottom: 80px;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(3, 7, 18, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

.brand-badge {
  display: inline-block;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--accent-light-blue);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 1.2rem;
  border-radius: 9999px;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

h1.gradient-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--accent-white) 30%, var(--accent-light-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.hero-btn-primary {
  padding: 0.9rem 2.2rem;
  font-size: 1.05rem;
}

.hero-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  padding: 0.9rem 2.2rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  transition: var(--transition-smooth);
  font-size: 1.05rem;
}

.hero-btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 1.5rem;
  backdrop-filter: blur(8px);
}

.stat-item h3 {
  font-size: 1.8rem;
  color: var(--accent-white);
  margin-bottom: 0.2rem;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Sections General */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-white) 40%, var(--accent-light-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 2.5rem 2rem;
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.08);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--accent-light-blue);
  margin-bottom: 1.5rem;
  display: inline-block;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.8rem;
  color: var(--accent-white);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 3rem 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
}

.pricing-card.popular {
  border-color: var(--accent-blue);
  box-shadow: 0 0 25px rgba(59, 130, 246, 0.15);
  transform: scale(1.03);
}

.pricing-card.popular:hover {
  transform: scale(1.03) translateY(-5px);
}

.pricing-card:not(.popular):hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
}

.popular-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--accent-blue);
  color: var(--accent-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 9999px;
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-white);
  margin-bottom: 0.5rem;
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.plan-price {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent-white);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: baseline;
}

.plan-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-left: 0.3rem;
}

.plan-features {
  list-style: none;
  margin-bottom: 2.5rem;
  flex-grow: 1;
}

.plan-features li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.plan-features li::before {
  content: '✓';
  color: var(--accent-light-blue);
  font-weight: bold;
}

.plan-features li.disabled {
  color: var(--text-muted);
  text-decoration: line-through;
}

.plan-features li.disabled::before {
  content: '✗';
  color: var(--text-muted);
}

.pricing-btn {
  width: 100%;
}

/* Reviews / Testimonials Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.review-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 2rem;
  backdrop-filter: blur(8px);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-light-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: white;
}

.user-info h4 {
  font-size: 1rem;
  color: var(--accent-white);
}

.user-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stars {
  color: #fbbf24;
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.review-content {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* FAQ Section */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item:hover {
  border-color: var(--border-hover);
}

.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent-white);
  cursor: pointer;
  list-style: none;
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--accent-light-blue);
  transition: var(--transition-smooth);
}

.faq-item[open] summary::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1rem;
}

/* Articles Feed Section */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  backdrop-filter: blur(8px);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.08);
}

.article-thumb {
  height: 180px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(96, 165, 250, 0.2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.article-thumb-icon {
  font-size: 3.5rem;
  color: var(--accent-light-blue);
  opacity: 0.8;
}

.article-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.article-card-body h3 {
  font-size: 1.15rem;
  color: var(--accent-white);
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-link {
  color: var(--accent-light-blue);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: var(--transition-smooth);
}

.article-link:hover {
  color: var(--accent-white);
}

.article-link::after {
  content: '→';
  transition: var(--transition-smooth);
}

.article-link:hover::after {
  transform: translateX(3px);
}

/* Call to Action Footer Panel */
.cta-panel {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.1) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 4rem 2rem;
  text-align: center;
  margin-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.cta-panel h2 {
  font-size: 2.2rem;
  color: var(--accent-white);
  margin-bottom: 1rem;
}

.cta-panel p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 2rem auto;
}

.cta-panel-btn {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* Single Article Layout */
.article-page {
  padding-top: 140px;
  padding-bottom: 80px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.article-content {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

.article-content p {
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-size: 1.6rem;
  color: var(--accent-white);
  margin: 2.5rem 0 1rem 0;
  border-left: 4px solid var(--accent-blue);
  padding-left: 0.8rem;
}

.article-content h3 {
  font-size: 1.25rem;
  color: var(--accent-white);
  margin: 2rem 0 0.8rem 0;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content a {
  color: var(--accent-light-blue);
  text-decoration: underline;
}

.article-content a:hover {
  color: var(--accent-white);
}

.article-content .cta-box {
  background: var(--bg-secondary);
  border: 1px solid var(--accent-blue);
  border-radius: 12px;
  padding: 2rem;
  margin: 3rem 0;
  text-align: center;
}

.article-content .cta-box p {
  font-weight: 600;
  color: var(--accent-white);
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
}

.article-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0.3rem 0.8rem;
  border-radius: 9999px;
}

.related-articles {
  margin-top: 3rem;
}

.related-articles-title {
  font-size: 1.4rem;
  color: var(--accent-white);
  margin-bottom: 1.5rem;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.related-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.2rem;
  transition: var(--transition-smooth);
}

.related-card:hover {
  border-color: var(--border-hover);
}

.related-card h4 {
  font-size: 0.95rem;
  line-height: 1.4;
  margin-bottom: 0.8rem;
}

.related-card h4 a {
  color: var(--accent-white);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.related-card h4 a:hover {
  color: var(--accent-light-blue);
}

/* Footer Section */
footer {
  background: #010309;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-links h4 {
  color: var(--accent-white);
  font-size: 1rem;
  margin-bottom: 1.2rem;
}

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

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--accent-light-blue);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

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

.footer-bottom-links a:hover {
  color: var(--text-secondary);
}

/* Mobile Responsiveness Rules */
@media (max-width: 1024px) {
  h1.gradient-title {
    font-size: 3rem;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .nav-links {
    display: none; /* Mobile navigation simplified */
  }
  
  .nav-container {
    padding: 0 1rem;
  }
  
  h1.gradient-title {
    font-size: 2.4rem;
  }
  
  .hero {
    padding-top: 120px;
    padding-bottom: 50px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .hero-buttons a {
    width: 100%;
    max-width: 300px;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.2rem;
  }
  
  .stat-item {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
  }
  
  .stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.popular {
    transform: none;
  }
  
  .pricing-card.popular:hover {
    transform: translateY(-5px);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}