/* -------------------------------------------------------------
   Yunhai VPN (yunhaivpn.lol) Design System & Styling
   Theme: Modern Light Dashboard with Tech Gradient Accents
   ------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;700;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-subtle: #f1f5f9;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --brand-primary: #4f46e5;
  --brand-primary-hover: #4338ca;
  --brand-light: #eef2ff;
  --brand-accent: #6366f1;
  --brand-glow: rgba(99, 102, 241, 0.15);

  --secondary-accent: #0284c7;
  --secondary-light: #e0f2fe;

  --border-color: #e2e8f0;
  --border-focus: #818cf8;

  --success-color: #10b981;
  --success-light: #ecfdf5;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;

  --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 -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 35px -10px rgba(79, 70, 229, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Layout Utilities */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--brand-primary), var(--secondary-accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

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

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--brand-primary);
  border-radius: var(--radius-full);
}

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

/* Search Bar Button */
.search-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.search-btn:hover {
  background-color: #fff;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--brand-glow);
  color: var(--text-primary);
}

.search-kbd {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  box-shadow: inset 0 -1px 0 rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
  color: #fff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.35);
  background: linear-gradient(135deg, var(--brand-primary-hover), var(--brand-primary));
}

.btn-secondary {
  background-color: #fff;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-subtle);
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--brand-light);
  color: var(--brand-primary);
}

.btn-accent:hover {
  background-color: #e0e7ff;
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 5rem 0 4rem;
  overflow: hidden;
  background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.08) 0%, rgba(248, 250, 252, 0) 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--brand-light);
  color: var(--brand-primary);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background-color: var(--brand-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(79, 70, 229, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(79, 70, 229, 0); }
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-title span {
  background: linear-gradient(135deg, var(--brand-primary), var(--secondary-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Dashboard Mockup Widget */
.hero-widget {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 1.5rem;
  position: relative;
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border-color);
}

.widget-title {
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.widget-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--success-color);
  background: var(--success-light);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.widget-chart-container {
  height: 180px;
  width: 100%;
  position: relative;
  margin-bottom: 1rem;
}

.speed-meter-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.meter-card {
  background: var(--bg-surface-subtle);
  padding: 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.meter-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.meter-val {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
}

/* Section Header styling */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  color: var(--brand-primary);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

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

/* Features Grid */
.features-section {
  padding: 5rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  position: relative;
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--brand-light);
  color: var(--brand-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Node Speed Test Matrix Table */
.matrix-section {
  padding: 5rem 0;
}

.matrix-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.matrix-table th {
  background-color: var(--bg-surface-subtle);
  padding: 1rem 1.25rem;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.matrix-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.matrix-table tr:last-child td {
  border-bottom: none;
}

.matrix-table tr:hover td {
  background-color: rgba(241, 245, 249, 0.5);
}

.node-flag {
  font-size: 1.1rem;
  margin-right: 0.4rem;
}

.badge-latency {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}

.badge-green {
  background: var(--success-light);
  color: var(--success-color);
}

.badge-orange {
  background: #fef3c7;
  color: #d97706;
}

/* Pricing Section */
.pricing-section {
  padding: 5rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
  color: #fff;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  text-align: center;
}

.plan-price {
  text-align: center;
  margin: 1.25rem 0;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 800;
  vertical-align: top;
}

.price-amount {
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.plan-features {
  list-style: none;
  margin: 1.5rem 0 2rem;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

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

.icon-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--success-light);
  color: var(--success-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: bold;
  flex-shrink: 0;
}

.icon-cross {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #f1f5f9;
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: bold;
  flex-shrink: 0;
}

/* Supplemental Flexible Plans Grid */
.supp-pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

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

.supp-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.supp-card-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--brand-primary);
  margin-bottom: 0.5rem;
}

.supp-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Recommended / Featured Articles Catalog */
.articles-section {
  padding: 5rem 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

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

.article-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-tag {
  align-self: flex-start;
  background-color: var(--brand-light);
  color: var(--brand-primary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.article-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.article-snippet {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.825rem;
  color: var(--text-muted);
}

.read-more {
  color: var(--brand-primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.read-more:hover {
  gap: 0.5rem;
}

/* User Reviews Carousel / Grid */
.reviews-section {
  padding: 5rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #3b82f6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.user-info .user-name {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.user-info .user-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* FAQ Accordion */
.faq-section {
  padding: 5rem 0;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item.active {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  text-align: left;
  background: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--brand-light);
  color: var(--brand-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-in-out, padding 0.35s ease;
  padding: 0 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.5rem 1.5rem;
}

/* Article Detail Page Layout */
.article-page {
  padding: 3rem 0 6rem;
}

.article-header-hero {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2.5rem;
}

.article-meta-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
}

.article-h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
  letter-spacing: -0.02em;
}

.article-author-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.article-content {
  max-width: 860px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #334155;
}

.article-content h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 2.5rem 0 1.2rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--bg-surface-subtle);
}

.article-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2rem 0 1rem;
}

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

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

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

.article-content blockquote {
  border-left: 4px solid var(--brand-primary);
  background: var(--brand-light);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.75rem 0;
  font-style: italic;
  color: #334155;
}

/* Code Block Styling */
.code-block {
  background: #0f172a;
  color: #f8fafc;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-x: auto;
  margin: 1.75rem 0;
  box-shadow: var(--shadow-md);
  position: relative;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #334155;
  color: #94a3b8;
  font-size: 0.8rem;
}

.copy-code-btn {
  background: #334155;
  color: #e2e8f0;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.copy-code-btn:hover {
  background: #475569;
  color: #fff;
}

/* Tables inside articles */
.tech-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.tech-table th {
  background-color: var(--brand-primary);
  color: #fff;
  padding: 0.9rem 1.2rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.9rem;
}

.tech-table td {
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
  background-color: #fff;
  font-size: 0.925rem;
}

.tech-table tr:nth-child(even) td {
  background-color: var(--bg-surface-subtle);
}

/* Modal Search Window */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.search-modal {
  background: var(--bg-card);
  width: 90%;
  max-width: 680px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.search-modal-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  gap: 0.8rem;
}

.search-input {
  width: 100%;
  border: none;
  outline: none;
  font-size: 1.1rem;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
}

.search-modal-results {
  max-height: 420px;
  overflow-y: auto;
  padding: 1rem;
}

.search-result-item {
  display: block;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  margin-bottom: 0.5rem;
}

.search-result-item:hover {
  background: var(--bg-surface-subtle);
}

.search-result-title {
  font-weight: 700;
  color: var(--brand-primary);
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.search-result-snippet {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Quick Client Config Modal */
.config-modal {
  background: var(--bg-card);
  width: 90%;
  max-width: 580px;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-xl);
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 1rem;

}

/* Footer */
.footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 1rem;
}

.footer-col-title {
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.9rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .supp-pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .supp-pricing-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}