/* ==========================================================================
   星云 (StarYun) - Enterprise Network Infrastructure Dashboard CSS
   Design System: Deep Gray-Blue + Hairline Borders + Technical Telemetry + Zero Glow
   Theme: Restrained, Professional, Enterprise-Grade NOC Infrastructure
   ========================================================================== */

:root {
  /* Enterprise Deep Gray-Blue Color System */
  --bg-base: #090d16;
  --bg-surface: #0e1422;
  --bg-surface-elevated: #131b2d;
  --bg-surface-hover: #172238;
  --bg-surface-active: #1c2944;

  /* Hairline Engineering Borders */
  --border-subtle: #1e293b;
  --border-medium: #26354d;
  --border-strong: #334460;
  --border-focus: #3b82f6;

  /* Crisp Enterprise Accents (Strictly restrained, zero neon) */
  --accent-blue: #2563eb;
  --accent-blue-hover: #1d4ed8;
  --accent-blue-light: #38bdf8;
  --accent-slate: #94a3b8;
  
  /* Telemetry Status Codes */
  --status-healthy: #10b981;
  --status-healthy-bg: rgba(16, 185, 129, 0.08);
  --status-healthy-border: rgba(16, 185, 129, 0.25);
  --status-warn: #f59e0b;
  --status-warn-bg: rgba(245, 158, 11, 0.08);
  --status-info: #0284c7;

  /* Text Contrast Hierarchy */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-mono: #38bdf8;
  --text-inverse: #090d16;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "Roboto Mono", Menlo, Monaco, Consolas, monospace;

  /* Restrained Engineering Radii (4px - 6px - 8px) */
  --radius-xs: 3px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 9999px;

  /* Subtle Technical Shadows (No glowing radial blur) */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-dropdown: 0 4px 16px rgba(0, 0, 0, 0.5);

  /* Layout */
  --max-width: 1240px;
  --header-height: 64px;
  --ticker-height: 32px;

  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.25s ease-out;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-base);
  background-image: 
    linear-gradient(to right, rgba(30, 41, 59, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 41, 59, 0.18) 1px, transparent 1px);
  background-size: 32px 32px;
  background-attachment: fixed;
}

/* Custom Clean Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-xs);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

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

img, svg {
  display: block;
  max-width: 100%;
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Global Status Ticker Bar */
.infra-ticker-bar {
  background: #060910;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  height: var(--ticker-height);
  display: flex;
  align-items: center;
}

.ticker-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  flex-wrap: wrap;
  gap: 12px;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ticker-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-healthy);
  display: inline-block;
}

.ticker-val {
  color: var(--text-secondary);
}

.ticker-val.highlight {
  color: var(--text-mono);
}

/* Section Header Structure */
.section-header {
  margin-bottom: 44px;
}

.section-header.center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 0.725rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-blue-light);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-xs);
  margin-bottom: 12px;
}

.section-badge .status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-blue-light);
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 0.975rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Typography Helpers (No Gradient Glow) */
.text-mono {
  font-family: var(--font-mono);
}

.text-white {
  color: #ffffff;
}

.text-blue {
  color: var(--accent-blue-light);
}

.text-emerald {
  color: var(--status-healthy);
}

/* Buttons (Restrained Enterprise Spec) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: var(--accent-blue);
  color: #ffffff;
  border: 1px solid #3b82f6;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.btn-primary:hover {
  background: var(--accent-blue-hover);
  border-color: #60a5fa;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

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

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8125rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(11, 15, 23, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--transition-fast);
}

.site-header.scrolled {
  border-bottom-color: var(--border-medium);
  box-shadow: var(--shadow-card);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
}

.brand-logo-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  background: #1e293b;
  border: 1px solid #334155;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue-light);
}

.brand-logo-icon svg {
  width: 16px;
  height: 16px;
}

.brand-logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-infra-tag {
  font-family: var(--font-mono);
  font-size: 0.675rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 1px 5px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  margin-left: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-medium);
  background: var(--bg-surface);
}

.mobile-menu-btn svg {
  width: 18px;
  height: 18px;
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: calc(var(--header-height) + var(--ticker-height));
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-base);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-normal);
  z-index: 999;
  border-bottom: 1px solid var(--border-medium);
  overflow-y: auto;
}

.mobile-nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-drawer .nav-links {
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
}

.mobile-nav-drawer .nav-link {
  font-size: 1.05rem;
  width: 100%;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Hero Section (NOC Telemetry Command Center)
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 56px 0 64px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: stretch;
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-blue-light);
  margin-bottom: 20px;
  width: fit-content;
}

.hero-meta-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-healthy);
}

.hero-title {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 18px;
  color: #ffffff;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 580px;
}

.hero-telemetry-chips {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 32px;
}

.telemetry-chip {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.telemetry-chip svg {
  width: 16px;
  height: 16px;
  color: var(--accent-blue-light);
  flex-shrink: 0;
}

.telemetry-chip-text {
  font-size: 0.85rem;
  font-weight: 500;
  color: #e2e8f0;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Hero Right: Infrastructure Terminal Dashboard Card */
.hero-dashboard-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.dash-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.dash-cluster-title {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-weight: 600;
}

.dash-health-badge {
  color: var(--status-healthy);
  background: var(--status-healthy-bg);
  border: 1px solid var(--status-healthy-border);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  font-size: 0.7rem;
}

/* Metric Gauges Grid */
.dash-gauges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 18px;
}

.gauge-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 10px;
}

.gauge-label {
  font-family: var(--font-mono);
  font-size: 0.685rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
  display: block;
}

.gauge-val {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.gauge-val.healthy {
  color: var(--status-healthy);
}

.gauge-val.highlight {
  color: var(--accent-blue-light);
}

/* Technical Sparkline Box (No Glowing Orbs) */
.dash-sparkline-box {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 12px;
  margin-bottom: 16px;
}

.sparkline-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.sparkline-svg {
  width: 100%;
  height: 48px;
}

.sparkline-grid-line {
  stroke: rgba(255, 255, 255, 0.05);
  stroke-dasharray: 2 2;
}

.sparkline-path {
  stroke: #3b82f6;
  stroke-width: 1.5;
  fill: none;
}

/* Node Latency Telemetry Matrix */
.dash-matrix-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.dash-matrix-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  font-size: 0.8125rem;
  transition: border-color var(--transition-fast);
}

.dash-matrix-row:hover {
  border-color: var(--border-medium);
}

.matrix-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pop-code {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #ffffff;
  font-size: 0.785rem;
}

.pop-route {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.matrix-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.matrix-latency {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--status-healthy);
  font-size: 0.8125rem;
}

.matrix-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-healthy);
}

/* Connection Topology Line */
.dash-topology-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

.topology-chain {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.topology-chain span {
  color: var(--accent-blue-light);
}

/* ==========================================================================
   Infrastructure Telemetry Bar (Stats Strip)
   ========================================================================== */
.stats-section {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 24px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.stat-item {
  border-right: 1px solid var(--border-subtle);
  padding: 6px 14px 6px 0;
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 2px;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.785rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Core Advantages (Architecture Dashboard)
   ========================================================================== */
.advantages-section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.bento-advantages-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.bento-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  transition: border-color var(--transition-fast);
}

.bento-card:hover {
  border-color: var(--border-medium);
}

.bento-card-1 {
  grid-column: span 7;
}

.bento-card-2 {
  grid-column: span 5;
}

.bento-card-3 {
  grid-column: span 12;
}

.bento-header {
  margin-bottom: 20px;
}

.bento-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-blue-light);
  margin-bottom: 8px;
  display: inline-block;
  text-transform: uppercase;
}

.bento-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.bento-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Card 1 Visual: Technical Speed & Packet Loss Table */
.speed-visual-panel {
  margin-top: 22px;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 16px;
}

.speed-metric-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  font-family: var(--font-mono);
}

.speed-metric-table th {
  text-align: left;
  padding: 8px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
  font-weight: 500;
}

.speed-metric-table td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
}

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

.speed-bar-track {
  height: 6px;
  background: var(--border-subtle);
  border-radius: var(--radius-xs);
  overflow: hidden;
  margin-top: 4px;
}

.speed-bar-fill {
  height: 100%;
  background: var(--accent-blue);
}

/* Card 2 Visual: Coverage Nodes Table */
.coverage-visual-panel {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.coverage-pill {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 12px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  gap: 10px;
}

.coverage-pill-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
}

.coverage-pill-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Card 3 Visual: Enterprise Protocol & Platform Row */
.platforms-visual-row {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.platform-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 16px;
  text-align: left;
  transition: border-color var(--transition-fast);
}

.platform-card:hover {
  border-color: var(--border-medium);
}

.platform-icon {
  width: 28px;
  height: 28px;
  color: var(--accent-blue-light);
  margin-bottom: 12px;
}

.platform-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.platform-support {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Global Node Network Section (NOC Live Monitor)
   ========================================================================== */
.nodes-section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.node-dashboard-wrap {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.node-dashboard-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.node-filter-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 0.785rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.filter-tab.active, .filter-tab:hover {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: #3b82f6;
}

.node-grid-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.node-grid-item {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition-fast);
}

.node-grid-item:hover {
  border-color: var(--border-medium);
}

.node-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.node-main-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.925rem;
  font-weight: 700;
  color: #ffffff;
}

.node-type-badge {
  font-family: var(--font-mono);
  font-size: 0.685rem;
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent-blue-light);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.node-latency-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
}

.node-latency-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--status-healthy);
  display: flex;
  align-items: center;
  gap: 6px;
}

.node-ping-indicator {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--status-healthy);
}

.node-features-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.node-mini-chip {
  font-family: var(--font-mono);
  font-size: 0.685rem;
  color: var(--text-muted);
  background: var(--bg-surface-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Streaming & AI Routing Matrix
   ========================================================================== */
.services-section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.services-bento-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.services-bento-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px;
}

.service-card-header {
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.service-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.service-items-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.service-item-box {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color var(--transition-fast);
}

.service-item-box:hover {
  border-color: var(--border-medium);
}

.service-item-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-icon-wrap {
  font-size: 1rem;
}

.service-item-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
}

.service-status-pill {
  font-family: var(--font-mono);
  font-size: 0.685rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  text-transform: uppercase;
}

.status-optimized {
  color: var(--accent-blue-light);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.status-supported {
  color: var(--status-healthy);
  background: var(--status-healthy-bg);
  border: 1px solid var(--status-healthy-border);
}

.status-available {
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Pricing Section (Service Specifications)
   ========================================================================== */
.pricing-section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-billing-switch {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.switch-pill-container {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 3px;
}

.switch-option-btn {
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.switch-option-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
}

.save-badge {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  font-weight: 700;
  color: var(--status-healthy);
  background: var(--status-healthy-bg);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--status-healthy-border);
}

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-fast);
}

.pricing-card:hover {
  border-color: var(--border-medium);
}

.pricing-card.recommended {
  border: 1px solid var(--border-focus);
  background: #101726;
}

.popular-badge {
  position: absolute;
  top: -11px;
  left: 20px;
  background: var(--accent-blue);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.685rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: var(--radius-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-header {
  margin-bottom: 20px;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.plan-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.price-currency {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent-blue-light);
}

.price-amount {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #ffffff;
  font-family: var(--font-mono);
  line-height: 1;
}

.price-period {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.plan-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.plan-feature-item svg {
  width: 15px;
  height: 15px;
  color: var(--status-healthy);
  flex-shrink: 0;
}

.plan-cta-btn {
  width: 100%;
  text-align: center;
}

/* ==========================================================================
   SEO Knowledgebase & Article Cards
   ========================================================================== */
.articles-section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.article-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--transition-fast);
}

.article-card:hover {
  border-color: var(--border-medium);
}

.article-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.article-category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-blue-light);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
}

.article-read-time {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

.article-title {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.45;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-card:hover .article-title {
  color: #93c5fd;
}

.article-excerpt {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.article-date {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

.article-link-btn {
  font-family: var(--font-mono);
  font-size: 0.785rem;
  font-weight: 600;
  color: var(--accent-blue-light);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-link-btn:hover {
  color: #ffffff;
}

/* ==========================================================================
   Testimonials / Verified Endorsements
   ========================================================================== */
.testimonials-section {
  padding: 80px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color var(--transition-fast);
}

.testimonial-card:hover {
  border-color: var(--border-medium);
}

.testimonial-verified-badge {
  font-family: var(--font-mono);
  font-size: 0.685rem;
  color: var(--status-healthy);
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 12px;
}

.testimonial-verified-badge .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--status-healthy);
}

.testimonial-text {
  font-size: 0.85rem;
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
}

.author-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: #ffffff;
}

.author-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
}

.author-role {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--text-muted);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 80px 0;
  position: relative;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.faq-item.active {
  border-color: var(--border-medium);
}

.faq-question-btn {
  width: 100%;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
}

.faq-question-btn:hover {
  color: #93c5fd;
}

.faq-icon-chevron {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.active .faq-icon-chevron {
  transform: rotate(180deg);
  color: var(--accent-blue-light);
}

.faq-answer-wrap {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-content {
  padding: 0 20px 18px 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 14px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #05080e;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 28px 0;
}

.footer-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  max-width: 380px;
}

.footer-brand-desc {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.6;
}

.footer-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  flex-wrap: wrap;
}

.footer-nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-nav-link:hover {
  color: #ffffff;
}

.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   Article Single Page & Standalone Pages
   ========================================================================== */
.page-header-wrap {
  padding-top: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.785rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--text-secondary);
}

.breadcrumb-nav a:hover {
  color: #ffffff;
}

.article-content-container {
  max-width: 860px;
  margin: 40px auto 70px auto;
  padding: 0 20px;
}

.article-body {
  font-size: 0.975rem;
  color: #cbd5e1;
  line-height: 1.8;
}

.article-body h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #ffffff;
  margin: 36px 0 16px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #f1f5f9;
  margin: 28px 0 12px 0;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body ul, .article-body ol {
  margin-bottom: 20px;
  padding-left: 20px;
}

.article-body li {
  margin-bottom: 6px;
}

.article-body strong {
  color: #ffffff;
}

.article-body a {
  color: var(--accent-blue-light);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body blockquote {
  border-left: 3px solid var(--accent-blue);
  background: var(--bg-surface);
  padding: 14px 18px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  margin: 20px 0;
  color: #e2e8f0;
}

.article-cta-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 28px;
  margin: 40px 0;
  text-align: center;
}

.article-cta-box h3 {
  font-size: 1.2rem;
  color: #ffffff;
  margin-bottom: 8px;
}

.article-cta-box p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.related-articles-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 18px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .bento-card-1, .bento-card-2 {
    grid-column: span 12;
  }
  
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 12px;
  }
  
  .platforms-visual-row {
    grid-template-columns: repeat(3, 1fr);
  }

  .node-grid-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-bento-grid {
    grid-template-columns: 1fr;
  }

  .pricing-cards-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .infra-ticker-bar {
    display: none;
  }

  .nav-links, .nav-actions .btn {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-telemetry-chips {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platforms-visual-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .node-grid-list {
    grid-template-columns: 1fr;
  }

  .service-items-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .footer-nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .platforms-visual-row {
    grid-template-columns: 1fr;
  }

  .coverage-visual-panel {
    grid-template-columns: 1fr;
  }

  .dash-gauges-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Compatibility & Telemetry Helper Utilities
   ========================================================================== */
.text-gradient {
  color: #ffffff;
  font-weight: 700;
}

.desktop-nav {
  display: flex;
  align-items: center;
}

.author-meta {
  display: flex;
  flex-direction: column;
}

.hero-dashboard-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.bg-grid-pattern {
  display: none;
}

.live-ping-val {
  font-family: var(--font-mono);
  font-weight: 700;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-healthy);
  display: inline-block;
}