/* Modern Light Theme Dashboard & Knowledge Hub for 冲上云霄机场 (csyxvpn.mom) */
:root {
  --bg-primary: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent-color: #06b6d4;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --border-color: #e2e8f0;
  --border-focus: #93c5fd;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

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

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.logo-badge {
  font-size: 0.7rem;
  background: var(--primary-light);
  color: var(--primary-color);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-main);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

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

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  padding: 0.6rem 1.25rem;
  display: block;
  color: var(--text-main);
  font-size: 0.9rem;
  transition: var(--transition);
}

.dropdown-item:hover {
  background: var(--bg-subtle);
  color: var(--primary-color);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-search {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
}

.btn-search:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff !important;
  padding: 0.55rem 1.4rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.btn-outline:hover {
  background: var(--primary-light);
}

/* Layout Main Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Hero & Dashboard Overview Section */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 3.5rem;
}

@media (max-width: 992px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.hero-content h1 {
  font-size: 2.75rem;
  line-height: 1.2;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-content h1 span {
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 580px;
}

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

.tag-badge {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: var(--shadow-sm);
}

.tag-badge.highlight {
  background: var(--primary-light);
  border-color: #bfdbfe;
  color: var(--primary-color);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* Dashboard Mockup Card */
.dashboard-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
}

.dashboard-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.user-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #60a5fa, #3b82f6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.user-info .name {
  font-weight: 700;
  font-size: 1rem;
}

.user-info .plan {
  font-size: 0.8rem;
  color: var(--success-color);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.traffic-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-item {
  background: var(--bg-primary);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  text-align: center;
}

.stat-value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-top: 0.25rem;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Traffic Progress Bar */
.traffic-progress-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.traffic-info-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.progress-bar-bg {
  height: 10px;
  background: #e2e8f0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 32%;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

/* Live Latency Bar Chart Mock */
.speed-chart-box {
  height: 140px;
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
  justify-content: space-between;
}

.chart-bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  gap: 0.35rem;
}

.chart-bar {
  width: 100%;
  max-width: 24px;
  background: var(--primary-light);
  border: 1px solid #bfdbfe;
  border-radius: 4px 4px 0 0;
  position: relative;
  transition: height 0.5s ease;
}

.chart-bar.active {
  background: linear-gradient(180deg, #3b82f6, #2563eb);
}

.chart-bar-label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Section Title Styling */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Node List Section */
.node-section {
  margin-bottom: 4rem;
}

.node-filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.node-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: #bfdbfe;
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.node-flag-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1rem;
}

.flag-icon {
  font-size: 1.3rem;
}

.node-multiplier {
  font-size: 0.75rem;
  padding: 2px 8px;
  background: var(--bg-subtle);
  border-radius: 4px;
  color: var(--text-muted);
  font-weight: 600;
}

.node-details {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.ping-tag {
  color: var(--success-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.protocol-tag {
  background: var(--primary-light);
  color: var(--primary-color);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.node-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-node-copy {
  flex: 1;
  padding: 0.45rem;
  font-size: 0.82rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
}

.btn-node-copy:hover {
  background: var(--primary-light);
  color: var(--primary-color);
  border-color: #bfdbfe;
}

/* Pricing Section - Image 1 Style Replication */
.pricing-section {
  margin-bottom: 4.5rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-focus);
}

.pricing-card.popular {
  border: 2px solid var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.plan-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.plan-price-row {
  display: flex;
  align-items: baseline;
  margin-bottom: 1rem;
}

.plan-price-row .price {
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--text-main);
  line-height: 1;
}

.plan-price-row .symbol {
  font-size: 1.25rem;
  margin-left: 4px;
  color: var(--text-muted);
}

.plan-price-row .duration {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-left: 8px;
}

.plan-divider {
  height: 2px;
  width: 40px;
  background: #cbd5e1;
  margin-bottom: 1.5rem;
}

.plan-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 0.85rem;
}

.plan-feature-item.disabled {
  color: var(--text-light);
}

.feature-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.feature-icon.check {
  background: #dcfce7;
  color: var(--success-color);
}

.feature-icon.cross {
  background: #f1f5f9;
  color: #94a3b8;
}

.btn-pricing {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.btn-pricing:hover, .pricing-card.popular .btn-pricing {
  background: var(--primary-color);
  color: #ffffff;
  border-color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Tutorial & Download Hub */
.client-section {
  margin-bottom: 4.5rem;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.client-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #bfdbfe;
}

.client-os-icon {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.client-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.client-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.client-btn-group {
  display: flex;
  gap: 0.5rem;
}

.btn-client-dl {
  flex: 1;
  padding: 0.45rem 0.5rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary-color);
  font-weight: 600;
  text-align: center;
  border: 1px solid #bfdbfe;
  transition: var(--transition);
}

.btn-client-dl:hover {
  background: var(--primary-color);
  color: #fff;
}

/* Knowledge Hub & Articles Grid */
.articles-section {
  margin-bottom: 4.5rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #bfdbfe;
}

.article-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary-color);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  align-self: flex-start;
}

.article-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}

/* FAQ Accordion Section */
.faq-section {
  margin-bottom: 4.5rem;
}

.faq-container {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 1.25rem;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-question::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}

.faq-item.active .faq-question::after {
  content: "-";
  transform: rotate(180deg);
  color: var(--primary-color);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* User Reviews Carousel / Grid */
.reviews-section {
  margin-bottom: 4.5rem;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.review-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: #475569;
  font-size: 0.85rem;
}

.author-name {
  font-weight: 700;
  font-size: 0.9rem;
}

.author-role {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* Search Modal Overlay (Images 2, 3, 4 style replicate) */
.search-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 10vh;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.search-modal.active {
  opacity: 1;
  visibility: visible;
}

.search-box-card {
  background: var(--bg-card);
  width: 90%;
  max-width: 640px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 1.1rem;
  color: var(--text-main);
  margin-left: 0.75rem;
}

.search-close-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
}

.search-hot-terms {
  padding: 1.25rem;
}

.hot-terms-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.hot-term-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hot-tag {
  background: var(--bg-subtle);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  color: var(--text-main);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition);
}

.hot-tag:hover {
  background: var(--primary-light);
  color: var(--primary-color);
}

.search-results-list {
  max-height: 300px;
  overflow-y: auto;
  padding: 0.5rem 1.25rem;
}

.search-result-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
  display: block;
}

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

.search-result-item h4 {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.search-result-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Single Article Layout Details */
.article-page-container {
  max-width: 900px;
  margin: 2rem auto;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
  .article-page-container {
    padding: 1.5rem 1rem;
  }
}

.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.article-header-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #334155;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2rem 0 1rem 0;
  color: var(--text-main);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-light);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem 0;
  color: var(--text-main);
}

.article-body p {
  margin-bottom: 1.25rem;
}

.article-body ul, .article-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

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

.article-body blockquote {
  background: var(--primary-light);
  border-left: 4px solid var(--primary-color);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.98rem;
  color: #1e3a8a;
}

.article-body code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9em;
  color: #0f172a;
}

.article-body pre {
  background: #0f172a;
  color: #f8fafc;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.article-body th, .article-body td {
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.92rem;
}

.article-body th {
  background: var(--bg-subtle);
  font-weight: 700;
}

.article-cta-box {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin: 2.5rem 0;
  text-align: center;
}

.article-cta-box h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #1e40af;
}

.article-cta-box p {
  color: #1e3a8a;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

/* Footer Styling */
.footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 4rem 2rem 2rem 2rem;
  border-top: 1px solid #1e293b;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-brand h3 {
  color: #fff;
  font-size: 1.3rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.footer-column h4 {
  color: #f8fafc;
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

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

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.88rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #38bdf8;
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}