/* GDC Archive Page Styles - Premium Dark Theme
------------------------------------------ */

:root {
  --gdc-bg-primary: #0a0b0f;
  --gdc-bg-secondary: #12141a;
  --gdc-bg-tertiary: #1a1d25;
  --gdc-accent: #4f46e5;
  --gdc-accent-hover: #6366f1;
  --gdc-text-primary: #f8fafc;
  --gdc-text-secondary: #94a3b8;
  --gdc-border: rgba(255, 255, 255, 0.06);
  --gdc-border-hover: rgba(255, 255, 255, 0.12);
  --gdc-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --gdc-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --gdc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Layout */
.gdc-archive {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  color: var(--gdc-text-primary);
  background: #121212;
  min-height: 100vh;
}

.gdc-archive-content {
  position: relative;
  background: var(--gdc-bg-secondary);
  border-radius: 24px;
  overflow: hidden;
  backdrop-filter: blur(20px);
  border: 1px solid var(--gdc-border);
}

/* Introduction Section */
.gdc-intro {
  position: relative;
  padding: 6rem 3rem;
  text-align: center;
  background: linear-gradient(to bottom, var(--gdc-bg-secondary), var(--gdc-bg-primary));
  border-bottom: 1px solid var(--gdc-border);
  overflow: hidden;
}

.gdc-intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gdc-accent), transparent);
}

.gdc-intro .entry-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 3rem;
  color: var(--gdc-text-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--gdc-text-primary), var(--gdc-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gdc-description {
  max-width: 800px;
  margin: 0 auto;
  color: var(--gdc-text-secondary);
  line-height: 1.8;
  font-size: 1.1rem;
}

.gdc-description p {
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

/* Years Section */
.gdc-years {
  padding: 3rem;
  display: grid;
  gap: 1.5rem;
}

.gdc-year {
  background: var(--gdc-bg-tertiary);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--gdc-transition);
  border: 1px solid var(--gdc-border);
}

.gdc-year:hover {
  transform: translateY(-4px);
  box-shadow: var(--gdc-shadow);
  border-color: var(--gdc-border-hover);
}

.year-header {
  width: 100%;
  padding: 1.5rem;
  background: transparent;
  border: none;
  color: var(--gdc-text-primary);
  font-size: 1.2rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: var(--gdc-transition);
}

.year-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.year-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-right: 1rem;
  font-size: 1rem;
  color: var(--gdc-accent);
  background: rgba(79, 70, 229, 0.1);
  border-radius: 8px;
  transition: var(--gdc-transition);
}

.year-toggle::before {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  content: '\f067';
}

.gdc-year.active .year-toggle::before {
  content: '\f068';
  color: var(--gdc-accent-hover);
}

.year-content {
  padding: 2rem;
  background: var(--gdc-bg-secondary);
}

/* Download Sections */
.download-section {
  margin-bottom: 2rem;
  padding: 2rem;
  background: var(--gdc-bg-tertiary);
  border-radius: 16px;
  border: 1px solid var(--gdc-border);
}

.download-section h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gdc-accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
}

.download-section h3::before {
  content: '\f019';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-right: 0.75rem;
  font-size: 1rem;
}

.download-link {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  margin-bottom: 0.75rem;
  background: var(--gdc-bg-secondary);
  color: var(--gdc-text-primary);
  text-decoration: none;
  border-radius: 12px;
  transition: var(--gdc-transition);
  border: 1px solid var(--gdc-border);
  font-size: 0.95rem;
}

.download-link:hover {
  background: var(--gdc-bg-tertiary);
  transform: translateX(8px);
  border-color: var(--gdc-accent);
  box-shadow: var(--gdc-shadow-sm);
}

.download-link::before {
  content: '\f381';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-right: 1rem;
  color: var(--gdc-accent);
  transition: transform 0.3s ease;
}

.download-link:hover::before {
  transform: translateY(-2px);
}

/* Additional Info */
.additional-info {
  margin-top: 2.5rem;
  display: grid;
  gap: 1rem;
}

.info-toggle {
  width: 100%;
}

.toggle-btn {
  width: 100%;
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--gdc-bg-tertiary);
  color: var(--gdc-text-primary);
  text-decoration: none;
  border-radius: 12px;
  transition: var(--gdc-transition);
  border: 1px solid var(--gdc-border);
  font-size: 0.9rem;
  font-weight: 500;
}

.toggle-btn:hover {
  background: var(--gdc-bg-secondary);
  transform: translateX(8px);
  border-color: var(--gdc-accent);
}

.toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-right: 0.75rem;
  background: rgba(79, 70, 229, 0.1);
  border-radius: 6px;
  color: var(--gdc-accent);
}

.toggle-icon::before {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  content: '\f067';
  font-size: 0.8rem;
}

/* Share Section */
.gdc-share {
  padding: 4rem 3rem;
  text-align: center;
  background: linear-gradient(to bottom, var(--gdc-bg-primary), var(--gdc-bg-secondary));
  border-top: 1px solid var(--gdc-border);
}

.gdc-share p {
  color: var(--gdc-text-primary);
  font-size: 1.4rem;
  font-weight: 500;
  background: linear-gradient(135deg, var(--gdc-text-primary), var(--gdc-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 2rem;
}

.social-share-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.share-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  color: var(--gdc-text-primary);
  background: var(--gdc-bg-tertiary);
  border: 1px solid var(--gdc-border);
  transition: var(--gdc-transition);
  text-decoration: none;
}

.share-button:hover {
  transform: translateY(-4px);
  border-color: var(--gdc-accent);
  box-shadow: var(--gdc-shadow-sm);
  color: var(--gdc-text-primary);
}

.share-button i {
  font-size: 1.2rem;
}

.share-button.facebook:hover {
  background: #1877f2;
}

.share-button.twitter:hover {
  background: #1da1f2;
}

.share-button.linkedin:hover {
  background: #0a66c2;
}

.share-button.email:hover {
  background: var(--gdc-accent);
}

@media (max-width: 480px) {
  .share-button {
    width: 40px;
    height: 40px;
  }
  
  .share-button i {
    font-size: 1rem;
  }
}

/* CTA Section */
.gdc-cta {
  padding: 6rem 3rem;
  text-align: center;
  background: var(--gdc-bg-tertiary);
  position: relative;
  overflow: hidden;
}

.gdc-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(79, 70, 229, 0.1), transparent);
  pointer-events: none;
}

.gdc-cta p {
  color: var(--gdc-text-primary);
  margin-bottom: 3rem;
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.6;
}

.cta-button {
  display: inline-block;
  padding: 1.25rem 3rem;
  background: var(--gdc-accent);
  color: var(--gdc-text-primary);
  text-decoration: none;
  border-radius: 16px;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  transition: var(--gdc-transition);
  border: none;
  box-shadow: var(--gdc-shadow-sm);
  position: relative;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.cta-button:hover {
  background: var(--gdc-accent-hover);
  transform: translateY(-4px);
  box-shadow: var(--gdc-shadow);
}

.cta-button:hover::before {
  transform: translateX(100%);
}

/* Trusted By Section */
.gdc-trusted {
  padding: 6rem 3rem;
  text-align: center;
  background: var(--gdc-bg-primary);
  border-top: 1px solid var(--gdc-border);
  position: relative;
}

.gdc-trusted h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 4rem;
  color: var(--gdc-text-primary);
  background: linear-gradient(135deg, var(--gdc-text-primary), var(--gdc-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.trusted-logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.trusted-company {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: var(--gdc-bg-tertiary);
  border-radius: 16px;
  border: 1px solid var(--gdc-border);
  transition: var(--gdc-transition);
}

.trusted-company img {
  max-width: 140px;
  height: auto;
  opacity: 0.7;
  transition: var(--gdc-transition);
  filter: grayscale(100%) brightness(2);
}

.trusted-company:hover {
  transform: translateY(-8px);
  box-shadow: var(--gdc-shadow);
  border-color: var(--gdc-accent);
  background: var(--gdc-bg-secondary);
}

.trusted-company:hover img {
  opacity: 1;
  filter: grayscale(0%) brightness(1);
}

/* Copyright Section */
.gdc-copyright {
  padding: 3rem;
  text-align: center;
  background: var(--gdc-bg-tertiary);
  border-top: 1px solid var(--gdc-border);
}

.gdc-copyright p {
  color: var(--gdc-text-secondary);
  font-size: 1rem;
  margin: 0;
  opacity: 0.8;
}

.hashtag {
  margin-top: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gdc-accent);
}

/* Active States */
.gdc-year.active {
  box-shadow: var(--gdc-shadow);
  border-color: var(--gdc-accent);
}

.gdc-year.active .year-header {
  background: rgba(79, 70, 229, 0.1);
}

/* Animations */
@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.year-content {
  animation: fadeIn 0.4s ease-out;
}

.download-link {
  animation: slideIn 0.3s ease-out;
  animation-fill-mode: both;
}

.download-link:nth-child(2) { animation-delay: 0.1s; }
.download-link:nth-child(3) { animation-delay: 0.2s; }
.download-link:nth-child(4) { animation-delay: 0.3s; }

/* Responsive Design */
@media (max-width: 1200px) {
  .gdc-intro .entry-title {
    font-size: 3rem;
  }
  
  .trusted-logos {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

@media (max-width: 768px) {
  .gdc-archive {
    padding: 1rem;
  }

  .gdc-intro {
    padding: 4rem 1.5rem;
  }

  .gdc-intro .entry-title {
    font-size: 2.5rem;
  }

  .gdc-years {
    padding: 1.5rem;
  }

  .download-section {
    padding: 1.5rem;
  }

  .trusted-logos {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
  }

  .gdc-cta,
  .gdc-trusted,
  .gdc-share {
    padding: 4rem 1.5rem;
  }
}

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

  .year-header {
    padding: 1.25rem;
    font-size: 1rem;
  }

  .download-link {
    padding: 1rem;
    font-size: 0.9rem;
  }

  .trusted-logos {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cta-button {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}