/* System & Reset */
:root {
  --color-ivory: #F8F6EF;
  --color-obsidian: #171C22;
  --color-muted-steel: #697989;
  --color-pale-gray: #E7E8E6;
  --color-white: #FFFFFF;
  --color-accent-border: #D0D4D9;
  --font-heading: 'Trebuchet MS', 'Arial Narrow', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

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

html {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-obsidian);
  background-color: var(--color-ivory);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-ivory);
  color: var(--color-obsidian);
}

a {
  color: var(--color-obsidian);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover, a:focus-visible {
  color: var(--color-muted-steel);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Typography Rules */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-obsidian);
  letter-spacing: -0.02em;
  font-weight: 700;
  line-height: 1.15;
}

h1 {
  font-size: 61px;
  margin-bottom: 24px;
}

h2 {
  font-size: 32px;
  margin-top: 36px;
  margin-bottom: 18px;
}

h3 {
  font-size: 22px;
  margin-top: 24px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 16px;
  color: #2D3748;
}

.mono-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted-steel);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(248, 246, 239, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-pale-gray);
  padding: 16px 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-obsidian);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-logo span.badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  background-color: var(--color-obsidian);
  color: var(--color-ivory);
  border-radius: 2px;
  text-transform: uppercase;
}

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

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-obsidian);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-obsidian);
  color: var(--color-ivory);
  border: 1px solid var(--color-obsidian);
}

.btn-primary:hover {
  background-color: #2D3748;
  color: var(--color-white);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-obsidian);
  border: 1px solid var(--color-muted-steel);
}

.btn-secondary:hover {
  background-color: var(--color-pale-gray);
  color: var(--color-obsidian);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-muted-steel);
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--color-obsidian);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
}

/* Hero Section */
.hero-section {
  padding: 60px 0 80px 0;
  background-color: var(--color-ivory);
  border-bottom: 1px solid var(--color-pale-gray);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-copy {
  max-width: 580px;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted-steel);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.hero-intro {
  font-size: 18px;
  color: #374151;
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

/* Dashboard Dark Container */
.hero-dashboard {
  background-color: var(--color-obsidian);
  border-radius: 8px;
  padding: 24px;
  color: var(--color-ivory);
  box-shadow: 0 12px 32px rgba(23, 28, 34, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(105, 121, 137, 0.3);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.dashboard-title {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-pale-gray);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dashboard-status {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: #10B981;
  border-radius: 50%;
}

.dashboard-canvas {
  width: 100%;
  height: 220px;
  position: relative;
}

/* Single animated line on entry */
.route-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.route-bg-line {
  stroke: var(--color-muted-steel);
  stroke-width: 1.5;
  stroke-dasharray: 4 4;
  opacity: 0.4;
}

.route-active-line {
  stroke: #F8F6EF;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 600;
  stroke-dashoffset: 600;
  animation: dataLineDraw 2.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes dataLineDraw {
  to {
    stroke-dashoffset: 0;
  }
}

.dashboard-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
  border-top: 1px solid rgba(105, 121, 137, 0.3);
  padding-top: 16px;
}

.metric-item {
  font-family: var(--font-mono);
}

.metric-label {
  font-size: 11px;
  color: var(--color-muted-steel);
  text-transform: uppercase;
}

.metric-value {
  font-size: 14px;
  color: var(--color-ivory);
  font-weight: 600;
  margin-top: 4px;
}

/* Main Light Page Content Styling */
.light-section {
  padding: 72px 0;
  background-color: var(--color-ivory);
}

.light-section-alt {
  padding: 72px 0;
  background-color: var(--color-pale-gray);
}

.section-header {
  margin-bottom: 48px;
  max-width: 720px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

/* Benefits Layout: One Large Feature Panel + Two Open Columns */
.benefits-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
}

.benefit-feature-panel {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 8px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.benefit-columns {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.benefit-card-open {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 8px;
  padding: 28px;
}

.benefit-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-muted-steel);
  margin-bottom: 12px;
}

.benefit-title {
  font-size: 24px;
  margin-bottom: 12px;
}

/* Node Directory Section */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.node-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 6px;
  padding: 24px;
}

.node-region {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.node-flag {
  font-size: 20px;
  font-family: var(--font-heading);
  font-weight: 700;
}

.node-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
  background-color: var(--color-pale-gray);
  padding: 2px 6px;
  border-radius: 2px;
}

.node-desc {
  font-size: 14px;
  color: #4B5563;
  margin-bottom: 16px;
}

.node-spec {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
  border-top: 1px solid var(--color-pale-gray);
  padding-top: 10px;
}

/* AI / Streaming Editorial Bands */
.editorial-band {
  margin-bottom: 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 8px;
  padding: 36px;
}

.editorial-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.editorial-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  background-color: var(--color-obsidian);
  color: var(--color-ivory);
  padding: 4px 8px;
  border-radius: 2px;
}

.editorial-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.editorial-tag-item {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 6px 12px;
  background-color: var(--color-ivory);
  border: 1px solid var(--color-accent-border);
  border-radius: 4px;
  color: var(--color-obsidian);
}

/* Pricing Table */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pricing-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 8px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border: 2px solid var(--color-obsidian);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background-color: var(--color-obsidian);
  color: var(--color-ivory);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 2px;
}

.pricing-plan-name {
  font-size: 22px;
  margin-bottom: 8px;
}

.pricing-price {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-obsidian);
  margin-bottom: 16px;
  background-color: var(--color-ivory);
  padding: 10px 14px;
  border-radius: 4px;
  border: 1px solid var(--color-accent-border);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-obsidian);
}

.price-period {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted-steel);
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 14px;
  color: #374151;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-pale-gray);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Nine Article Cards: 3/2/1 Columns Desktop/Tablet/Mobile */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.article-card:hover {
  border-color: var(--color-obsidian);
  transform: translateY(-2px);
}

.article-card-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
  margin-bottom: 12px;
}

.article-card-title {
  font-size: 19px;
  margin-bottom: 12px;
  line-height: 1.35;
}

.article-card-snippet {
  font-size: 14px;
  color: #4B5563;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-link {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-obsidian);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 8px;
  padding: 28px;
}

.testimonial-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-muted-steel);
  background-color: var(--color-ivory);
  padding: 2px 6px;
  border-radius: 2px;
  margin-bottom: 12px;
  display: inline-block;
}

.testimonial-quote {
  font-size: 15px;
  color: #1F2937;
  font-style: italic;
  margin-bottom: 16px;
}

.testimonial-author {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-obsidian);
}

.testimonial-role {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
}

/* FAQ Accordion / List */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 6px;
  padding: 24px;
}

.faq-question {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-obsidian);
  margin-bottom: 10px;
}

.faq-answer {
  font-size: 15px;
  color: #374151;
  line-height: 1.6;
}

/* Breadcrumb Navigation */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted-steel);
  margin-bottom: 24px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-muted-steel);
}

.breadcrumb a:hover {
  color: var(--color-obsidian);
}

.breadcrumb-separator {
  opacity: 0.5;
}

/* Article Content Layout */
.article-page-layout {
  padding: 48px 0 80px 0;
  background-color: var(--color-ivory);
}

.article-container {
  max-width: 860px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--color-pale-gray);
  padding-bottom: 24px;
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
}

.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: #2D3748;
}

.article-body h2 {
  font-size: 26px;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-pale-gray);
}

.article-body h3 {
  font-size: 20px;
  margin-top: 28px;
  margin-bottom: 12px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body blockquote {
  background-color: var(--color-pale-gray);
  border-left: 4px solid var(--color-obsidian);
  padding: 16px 20px;
  margin: 24px 0;
  font-style: italic;
}

.related-articles {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--color-accent-border);
}

.related-title {
  font-size: 22px;
  margin-bottom: 20px;
}

.related-links-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  list-style: none;
}

.related-links-list a {
  display: block;
  padding: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-accent-border);
  border-radius: 6px;
  font-weight: 600;
}

/* Footer Styling */
.site-footer {
  background-color: var(--color-obsidian);
  color: var(--color-ivory);
  padding: 60px 0 40px 0;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--color-muted-steel);
  font-size: 14px;
  margin-top: 12px;
  max-width: 320px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 16px;
  color: var(--color-ivory);
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--color-pale-gray);
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--color-ivory);
}

.footer-bottom {
  border-top: 1px solid rgba(105, 121, 137, 0.3);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted-steel);
}

/* Media Queries for Responsiveness */

/* Desktop (1024px to 1440px) */
@media (max-width: 1024px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

/* Tablet / Mobile Menu Switch (768px) */
@media (max-width: 768px) {
  h1 {
    font-size: 38px;
    margin-bottom: 18px;
  }

  h2 {
    font-size: 26px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-ivory);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--color-accent-border);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    gap: 16px;
  }

  .nav-links.active {
    display: flex;
  }

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

  .articles-grid {
    grid-template-columns: 1fr; /* 1 column on mobile */
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* Mobile Small (375px - 430px) */
@media (max-width: 430px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

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

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

/* Reduced Motion Policy */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .route-active-line {
    stroke-dashoffset: 0 !important;
    animation: none !important;
  }
}