/* ========================================
   ARTICLE PAGE - MODERN DESIGN
   ======================================== */

:root {
  --color-primary: #818cf8;
  --color-primary-dark: #6366f1;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-border: #e5e7eb;
  --color-accent: #f087dc;
  --color-success: #10b981;
  --spacing: 1.5rem;
}

.article-page {
  padding-top: var(--header-height, 76px);
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
}

/* ===== BREADCRUMB ===== */
.breadcrumb-nav {
  background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-height, 76px);
  z-index: 20;
}

.breadcrumb-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.95rem;
  gap: 0.5rem;
}

.breadcrumb-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.breadcrumb-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--color-text-light);
  margin: 0 0.25rem;
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 600;
}

/* ===== ARTICLE HERO ===== */
.article-hero {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
  padding: 3rem var(--spacing) 2rem;
  border-bottom: 1px solid var(--color-border);
}

.article-hero-container {
  max-width: 1200px;
  margin: 0 auto;
}

.article-hero-content {
  max-width: 900px;
}

.article-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin: 0 0 1.5rem 0;
  letter-spacing: -0.02em;
}

.article-meta-info {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.meta-date,
.meta-updated {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-date svg,
.meta-updated svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ===== MAIN CONTENT ===== */
.article-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem clamp(1.25rem, 4vw, 4rem);
  width: 100%;
  max-width: 100%;
}

.article-container {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  width: 100%;
  max-width: 100%;
}

@media (max-width: 1024px) {
  .article-container {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
    max-height: none;
    overflow-y: visible;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .article-sidebar {
    grid-template-columns: 1fr;
  }
}

/* ===== ARTICLE BODY ===== */
.article-body {
  font-size: 1.1rem;
  line-height: 1.3;
  color: var(--color-text);
  min-width: 0;
  width: 100%;
  max-width: 100%;
}

.article-body h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem 0;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 1rem 0 0.5rem 0;
  color: var(--color-text);
}

.article-body p {
  margin-bottom: 0.8rem;
  text-align: left;
}

.article-body ul,
.article-body ol {
  margin: 1.5rem 0 1.5rem 2rem;
  padding: 0;
}

.article-body li {
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.article-body strong {
  color: var(--color-text);
  font-weight: 700;
}

.article-body em {
  color: var(--color-text-light);
  font-style: italic;
}

.article-body a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.article-body a:hover {
  border-bottom-color: var(--color-primary);
}

.article-body code {
  background: #f3f4f6;
  color: #dc2626;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.95em;
}

.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--color-text-light);
  background: #f8f9ff;
  padding: 1rem 1.5rem;
  border-radius: 0 8px 8px 0;
}

/* ===== SIDEBAR ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 150px);
  overflow-y: auto;
}

.sidebar-card {
  background: #f8f9ff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  position: static;
}

@media (max-width: 1024px) {
  .article-sidebar {
    position: static;
    max-height: none;
    overflow-y: visible;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .article-sidebar {
    grid-template-columns: 1fr;
  }
}

.sidebar-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 1rem 0;
}

.sidebar-meta {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
}

.sidebar-meta dt {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.sidebar-meta dd {
  margin: 0;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.sidebar-cta {
  background: linear-gradient(135deg, #f0f4ff 0%, #faf5ff 100%);
  border: 2px solid var(--color-primary);
}

.sidebar-cta p {
  color: var(--color-text-light);
  margin: 0 0 1rem 0;
  font-size: 0.95rem;
}

.btn-sidebar {
  display: inline-block;
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s;
  width: 100%;
  text-align: center;
  border: none;
  cursor: pointer;
}

.btn-sidebar:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(129, 140, 248, 0.3);
}

.share-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 40px;
  background: white;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-light);
  text-decoration: none;
  transition: all 0.2s;
}

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

.share-linkedin:hover {
  border-color: #0077b5;
  color: #0077b5;
}

.share-twitter:hover {
  border-color: #1da1f2;
  color: #1da1f2;
}

.share-email:hover {
  border-color: #ea4335;
  color: #ea4335;
}

/* ===== CTA SECTION ===== */
.article-cta-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 0;
  position: relative;
  overflow: hidden;
}

.article-cta-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem var(--spacing);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

@media (max-width: 768px) {
  .article-cta-container {
    grid-template-columns: 1fr;
  }

  .cta-visual {
    display: none;
  }
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  margin: 0 0 1rem 0;
  line-height: 1.2;
}

.cta-content p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  padding: 1rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  display: inline-block;
}

.btn-primary {
  background: white;
  color: #667eea;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.cta-visual {
  position: relative;
  height: 300px;
}

.cta-shape {
  position: absolute;
  right: -50px;
  top: -50px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent);
  border-radius: 50%;
  opacity: 0.5;
}


/* ===== RELATED ARTICLES SECTION ===== */
.article-related-section {
  background: #ffffff;
  padding: 4rem var(--spacing) 3rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.article-related-container {
  max-width: 1200px;
  margin: 0 auto;
}

.article-related-container h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 2.5rem 0;
  text-align: center;
}

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

.related-article-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.related-article-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.related-article-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.75rem 0;
  line-height: 1.4;
}

.related-article-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin: 0 0 1.5rem 0;
  flex-grow: 1;
  line-height: 1.6;
}

.related-article-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s;
  align-self: flex-start;
}

.related-article-link:hover {
  color: var(--color-primary-dark);
  gap: 0.75rem;
}

.related-article-link svg {
  transition: transform 0.2s;
}

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

/* ===== PRINT STYLES ===== */
@media print {
  .breadcrumb-nav,
  .article-sidebar,
  .article-cta-section,
  .article-related-section {
    display: none;
  }

  .article-container {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .article-body {
    font-size: 1rem;
    line-height: 1.6;
  }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .article-page {
    padding-top: var(--header-height, 76px);
  }

  .article-main,
  .article-hero,
  .article-related-section,
  .article-cta-section {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
  }

  .article-main {
    padding: 2rem 1.25rem;
  }

  .article-container {
    display: block;
    width: 100%;
    max-width: 100%;
  }

  .breadcrumb-nav {
    padding: 0.75rem 0;
  }

  .breadcrumb-container {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    padding: 0 1rem;
    font-size: 0.85rem;
    line-height: 1.45;
    gap: 0.2rem 0.45rem;
  }

  .breadcrumb-current:last-child {
    overflow-wrap: anywhere;
  }

  .article-hero {
    padding: 2rem 1rem 1.5rem;
  }

  .article-body {
    font-size: 1rem;
    line-height: 1.72;
    overflow-wrap: break-word;
    word-wrap: break-word;
    width: 100%;
    max-width: 100%;
  }

  .article-body p,
  .article-body li,
  .article-body h2,
  .article-body h3,
  .article-title,
  .article-meta-info {
    overflow-wrap: break-word;
    word-break: normal;
    max-width: 100%;
  }

  .article-body h2 {
    font-size: 1.5rem;
    line-height: 1.24;
  }

  .article-title {
    line-height: 1.12;
  }

  .article-related-container h2 {
    font-size: 1.5rem;
  }

  .related-articles-grid {
    gap: 1.5rem;
  }

  .related-article-card {
    padding: 1.5rem;
  }

  .article-related-section {
    padding: 3rem 1rem 2rem;
  }
}