:root {
  --bg-deep: #000000;
  --bg-surface: #0a0a0a;
  --card-surface: #1a1a1a;
  --primary: #D4AF37;
  --accent: #D4AF37;
  --text-dark: #ffffff;
  --text-light: #cccccc;
  --text-muted: #888888;
  --border-color: #333333;
  --success: #D4AF37;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Comfortaa', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-deep);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.content-wrapper {
  position: relative;
  z-index: 1;
}

/* Navigation */
.main-nav {
  background: var(--bg-surface);
  border-bottom: 2px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
  border-bottom: 2px solid transparent;
  padding-bottom: 0.25rem;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Hero Section */
.hero-section {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  border-bottom: 2px solid var(--border-color);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
  opacity: 0.9;
  line-height: 1.8;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.stat-number {
  font-size: clamp(1.3rem, 3vw, 1.5rem);
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Tabs */
.tabs-container {
  margin-bottom: var(--spacing-lg);
}

.tabs-nav {
  display: flex;
  gap: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
  flex-wrap: wrap;
}

.tab-button {
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-light);
  font-family: 'Comfortaa', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-button:hover {
  color: var(--primary);
}

.tab-button.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Filter Section */
.filter-section {
  background: #0f0f0f;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-label {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.filter-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--border-color);
  background: transparent;
  color: var(--text-light);
  font-family: 'Comfortaa', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.filter-btn.active {
  background: var(--primary);
  color: #000000;
  border-color: var(--primary);
}

/* Channel Grid */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.channel-card {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}

.channel-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.3);
  border-color: var(--primary);
}

.channel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.channel-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
}

.trust-badge {
  background: var(--primary);
  color: #000000;
  font-weight: 700;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  white-space: nowrap;
}

.channel-meta {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.difficulty-pill {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid;
  background: transparent;
}

.difficulty-beginner {
  color: var(--primary);
  border-color: var(--primary);
}

.difficulty-intermediate {
  color: var(--text-dark);
  border-color: var(--text-dark);
}

.difficulty-advanced {
  color: var(--text-muted);
  border-color: var(--text-muted);
}

.subscriber-count {
  font-size: 0.85rem;
  color: var(--text-light);
}

.channel-description {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.channel-topics {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.topic-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-light);
  font-size: 0.8rem;
}

.channel-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary);
  color: #000000;
  text-decoration: none;
  font-weight: 700;
  border: 2px solid var(--primary);
  transition: all 0.2s;
  font-size: 0.9rem;
  text-align: center;
}

.channel-link:hover {
  background: transparent;
  color: var(--primary);
}

/* Digest Section */
.digest-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
}

.digest-header h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
}

.digest-subtitle {
  font-size: 1rem;
  color: var(--text-light);
}

.digest-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.digest-card {
  background: #222222;
  border: 2px solid var(--border-color);
  border-left: 4px solid var(--primary);
  padding: var(--spacing-lg);
  transition: all 0.2s;
}

.digest-card:hover {
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.2);
}

.digest-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
}

.digest-meta {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.digest-source {
  color: var(--primary);
  font-weight: 600;
}

.digest-date {
  color: var(--text-muted);
}

.digest-summary {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.digest-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.accuracy-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.9rem;
}

.accuracy-stars {
  color: var(--primary);
  font-weight: 700;
}

.digest-link {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary);
  color: #000000;
  text-decoration: none;
  font-weight: 700;
  border: 2px solid var(--primary);
  transition: all 0.2s;
  font-size: 0.9rem;
}

.digest-link:hover {
  background: transparent;
  color: var(--primary);
}

/* Topics Section */
.topics-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--border-color);
}

.topics-header h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
}

.topics-subtitle {
  font-size: 1rem;
  color: var(--text-light);
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.topic-card {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  transition: all 0.2s;
}

.topic-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.3);
  border-color: var(--primary);
}

.topic-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.topic-description {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
}

.topic-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.topic-item {
  font-size: 0.9rem;
  color: var(--text-light);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.topic-item:last-child {
  border-bottom: none;
}

.topic-item strong {
  color: var(--text-dark);
}

/* Sidebar */
.sidebar {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--border-color);
}

.ad-container {
  margin-bottom: var(--spacing-lg);
}

.ad-slot {
  background: #0f0f0f;
  border: 2px dashed var(--border-color);
  padding: var(--spacing-lg);
  text-align: center;
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ad-placeholder {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.sidebar-widget {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.widget-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.widget-list li {
  font-size: 0.95rem;
  color: var(--text-light);
}

.widget-text {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.8;
}

.widget-text a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.widget-text a:hover {
  opacity: 0.8;
}

/* Footer */
.main-footer {
  background: var(--bg-surface);
  border-top: 2px solid var(--border-color);
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg) var(--spacing-md);
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

.footer-content p {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

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

/* Utility Classes */
.max-w-7xl {
  max-width: 1280px;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.px-4 {
  padding-left: 1rem;
  padding-right: 1rem;
}

.py-6 {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

/* Guide & Glossary Styles */
.guide-content,
.glossary-content,
.faq-content {
  margin-bottom: var(--spacing-xl);
}

.guide-section,
.faq-section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border-color);
}

.guide-section h2,
.faq-section h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: var(--spacing-lg);
}

.guide-section p,
.faq-section p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.guide-section a,
.faq-section a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.guide-section a:hover,
.faq-section a:hover {
  opacity: 0.8;
}

.guide-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: var(--spacing-lg);
}

.guide-list li {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

.guide-list li:before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

.level-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.level-card {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  transition: all 0.2s;
}

.level-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.2);
}

.level-card h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.level-card p {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.trust-scale {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.trust-item {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.trust-badge-demo {
  background: var(--primary);
  color: #000000;
  font-weight: 700;
  padding: var(--spacing-sm) var(--spacing-md);
  white-space: nowrap;
  font-size: 0.9rem;
}

.trust-item p {
  margin: 0;
  font-size: 0.95rem;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.tip-card {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  transition: all 0.2s;
}

.tip-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.2);
}

.tip-card h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.tip-card p {
  font-size: 0.9rem;
  margin: 0;
}

.faq-mini {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.faq-item {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
}

.faq-item h3,
.faq-item h4 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.faq-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin: 0;
  line-height: 1.8;
}

.glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.glossary-item {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  transition: all 0.2s;
}

.glossary-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 24px rgba(212, 175, 55, 0.2);
}

.glossary-item h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.glossary-item p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin: 0;
  line-height: 1.8;
}

.glossary-note {
  background: #222222;
  border: 2px solid var(--border-color);
  padding: var(--spacing-lg);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.glossary-note h2 {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.glossary-note p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin: 0;
}

.glossary-note a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.glossary-note a:hover {
  opacity: 0.8;
}

.cta-section {
  background: #222222;
  border: 2px solid var(--primary);
  padding: var(--spacing-xl);
  text-align: center;
}

.cta-section h2 {
  color: var(--primary);
  margin-bottom: var(--spacing-lg);
}

.cta-link {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--primary);
  color: #000000;
  text-decoration: none;
  font-weight: 700;
  border: 2px solid var(--primary);
  transition: all 0.2s;
  font-size: 1rem;
}

.cta-link:hover {
  background: transparent;
  color: var(--primary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    gap: var(--spacing-md);
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }

  .hero-stats {
    gap: var(--spacing-md);
  }

  .tabs-nav {
    gap: var(--spacing-sm);
  }

  .tab-button {
    padding: var(--spacing-sm);
    font-size: 0.85rem;
  }

  .filter-section {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-buttons {
    width: 100%;
  }

  .channel-grid {
    grid-template-columns: 1fr;
  }

  .topics-grid {
    grid-template-columns: 1fr;
  }

  .digest-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .digest-link {
    width: 100%;
    text-align: center;
  }

  .channel-link {
    width: 100%;
    text-align: center;
  }

  .level-cards {
    grid-template-columns: 1fr;
  }

  .tips-grid {
    grid-template-columns: 1fr;
  }

  .glossary-grid {
    grid-template-columns: 1fr;
  }

  .trust-item {
    flex-direction: column;
  }

  .cta-section {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .tabs-nav {
    gap: var(--spacing-xs);
  }

  .tab-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
  }

  .filter-buttons {
    gap: var(--spacing-xs);
  }

  .filter-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
  }

  .channel-header {
    flex-direction: column;
  }

  .channel-name {
    font-size: 1.1rem;
  }

  .digest-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
}