:root {
  /* Colors */
  --color-obsidian-canvas: #101010;
  --color-carbon-lift: #1d1a18;
  --color-ash-stroke: #3d3a39;
  --color-graphite-mid: #4d4947;
  --color-warm-granite: #8a8380;
  --color-pale-stone: #b8b3b0;
  --color-bone: #eeeeee;
  --color-chalk: #fafafa;
  --color-signal-orange: #ee6018;
  --color-metric-green: #a0ca92;

  /* Typography — Font Families */
  --font-geist: 'Product Sans', 'Google Sans', 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-geist-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Typography — Scale */
  --text-caption: 12px;
  --leading-caption: 1.2;
  --tracking-caption: 0px;
  
  --text-body-sm: 14px;
  --leading-body-sm: 1.5;
  
  --text-body: 16px;
  --leading-body: 1.6;
  
  --text-heading: 36px;
  --leading-heading: 1.25;
  --tracking-heading: -0.5px;
  
  --text-heading-lg: 48px;
  --leading-heading-lg: 1.2;
  --tracking-heading-lg: -1px;
  
  --text-display: 64px;
  --leading-display: 1.1;
  --tracking-display: -1.5px;

  /* Skill Tags */
  --skill-tag-bg: #2a2725;

  /* Typography — Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;

  /* Spacing */
  --spacing-8: 8px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-32: 32px;
  --spacing-40: 40px;
  --spacing-56: 56px;
  --spacing-80: 80px;
  --spacing-96: 96px;
  --spacing-120: 120px;

  /* Layout */
  --page-max-width: 1200px;
  --section-gap: 80px;
  --card-padding: 32px;
  --element-gap: 32px;

  /* Border Radius */
  --radius-nav: 3px;
  --radius-cards: 10px;
  --radius-buttons: 3px;
  --radius-largepanels: 20px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  background-color: var(--color-obsidian-canvas);
  color: var(--color-bone);
  font-family: var(--font-geist);
  font-weight: var(--font-weight-regular);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  z-index: 0;
}

/* Premium Engineering Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  /* Grid pattern */
  background-image: 
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
  /* Fade out the grid at the edges */
  mask-image: radial-gradient(ellipse at top center, black 10%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at top center, black 10%, transparent 80%);
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80vh;
  pointer-events: none;
  z-index: -2;
  /* Subtle orange glow radiating from top */
  background: radial-gradient(ellipse at top center, rgba(238, 96, 24, 0.05), transparent 70%);
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* Typography Classes */
.font-mono { font-family: var(--font-geist-mono); text-transform: uppercase; }

.text-display {
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  font-weight: var(--font-weight-regular);
}

.text-heading-lg {
  font-size: var(--text-heading-lg);
  line-height: var(--leading-heading-lg);
  letter-spacing: var(--tracking-heading-lg);
  font-weight: var(--font-weight-regular);
}

.text-heading {
  font-size: var(--text-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  font-weight: var(--font-weight-regular);
}

.text-body {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  font-weight: var(--font-weight-regular);
}

.text-body-sm {
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
  font-weight: var(--font-weight-regular);
}

.text-caption {
  font-family: var(--font-geist-mono);
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  font-weight: var(--font-weight-regular);
}

/* Color Utilities */
.text-muted { color: var(--color-warm-granite); }
.text-secondary { color: var(--color-pale-stone); }
.text-bone { color: var(--color-bone); }
.text-dark { color: var(--color-obsidian-canvas); }

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--element-gap);
}

.section {
  padding: var(--section-gap) 0;
  border-top: 1px solid var(--color-carbon-lift);
}

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.gap-xs { gap: var(--spacing-8); }
.gap-sm { gap: var(--spacing-16); }
.gap-md { gap: var(--spacing-32); }
.gap-lg { gap: var(--spacing-40); }
.gap-xl { gap: var(--section-gap); }

/* Status Pulse */
.status-pulse {
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-signal-orange);
  border-radius: 50%;
  vertical-align: middle;
}
.status-pulse.green { background-color: var(--color-metric-green); }

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(16, 16, 16, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-carbon-lift);
}

.nav-logo {
  font-family: var(--font-geist-mono);
  font-size: var(--text-caption);
  letter-spacing: 0.1em;
  color: var(--color-bone);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: var(--spacing-32);
  align-items: center;
}

.nav-link {
  font-size: var(--text-body-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-warm-granite);
  transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  text-transform: uppercase;
}

.nav-link:hover {
  color: var(--color-bone);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-body-sm);
  font-weight: var(--font-weight-regular);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  height: 40px;
  padding: 0 20px;
}

.btn-dark {
  background-color: #1f1d1c;
  color: var(--color-bone);
  border-radius: var(--radius-buttons);
  border: none;
}
.btn-dark:hover {
  background-color: var(--color-ash-stroke);
}

.btn-light {
  background-color: var(--color-chalk);
  color: var(--color-obsidian-canvas);
  border-radius: var(--radius-buttons);
  border: none;
}
.btn-light:hover {
  background-color: var(--color-bone);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-bone);
  border: 1px solid var(--color-ash-stroke);
  border-radius: 0px;
}
.btn-ghost:hover {
  color: var(--color-chalk);
  border-color: var(--color-chalk);
}

/* Cards */
.card-light {
  background-color: var(--color-bone);
  border-radius: var(--radius-cards);
  padding: var(--card-padding);
  color: var(--color-obsidian-canvas);
}

.card-light .text-muted { color: #555; }

.card-dark {
  background-color: #0d0d0d;
  border: 1px solid var(--color-carbon-lift);
  border-radius: var(--radius-cards);
  padding: 24px;
  transition: border-color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-dark:hover {
  border-color: var(--color-ash-stroke);
}

.card-panel {
  background-color: transparent;
  border-radius: var(--radius-largepanels);
}

/* Hero Section */
.hero {
  padding-top: var(--spacing-120);
  padding-bottom: var(--section-gap);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--section-gap);
  align-items: center;
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-56);
  }
}

/* Premium Terminal */
.premium-terminal {
  background-color: #060606;
  border: 1px solid var(--color-carbon-lift);
  border-radius: var(--radius-cards);
  overflow: hidden;
}

.terminal-header {
  background-color: var(--color-carbon-lift);
  padding: 12px 20px;
  display: flex;
  align-items: center;
}

.terminal-body {
  padding: var(--spacing-32);
}

.hover-bone {
  transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-bone:hover {
  color: var(--color-bone);
}

/* Dashboard Mockup */
.dashboard-mockup {
  background-color: #0d0d0d;
  border-radius: var(--radius-cards);
  border: 1px solid var(--color-carbon-lift);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.dashboard-header {
  background-color: var(--color-carbon-lift);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.window-controls {
  display: flex;
  gap: 8px;
  margin-right: 16px;
}

.window-control {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-ash-stroke);
}

.dashboard-title {
  color: var(--color-pale-stone);
}

.dashboard-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 600px) {
  .dashboard-content { grid-template-columns: 1fr; }
}

.metric-tile {
  padding: var(--spacing-24);
  border-right: 1px solid var(--color-carbon-lift);
  border-bottom: 1px solid var(--color-carbon-lift);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}
.metric-tile:nth-child(even) { border-right: none; }

.metric-label {
  color: var(--color-pale-stone);
}

.metric-value {
  color: var(--color-bone);
}

.sparkline {
  height: 40px;
  width: 100%;
  margin-top: var(--spacing-8);
}

.sparkline svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.sparkline path {
  fill: none;
  stroke: var(--color-signal-orange);
  stroke-width: 1px;
}

.sparkline.green path {
  stroke: var(--color-metric-green);
}

/* Logo Strip */
.logo-strip-section {
  padding: var(--section-gap) 0;
  border-top: 1px solid var(--color-carbon-lift);
  border-bottom: 1px solid var(--color-carbon-lift);
  overflow: hidden;
  background-color: var(--color-obsidian-canvas);
}

.logo-strip-wrapper {
  display: flex;
  width: 100%;
}

.logo-strip {
  display: flex;
  align-items: center;
  gap: 64px;
  padding-left: 64px;
  animation: marquee-scroll 35s linear infinite;
  white-space: nowrap;
}

.logo-strip:hover {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.logo-item {
  color: var(--color-warm-granite);
  font-size: var(--text-body);
  font-weight: var(--font-weight-regular);
  letter-spacing: 0;
  flex-shrink: 0;
}

/* Workflow Pipeline */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--element-gap);
}

@media (max-width: 900px) {
  .workflow-grid { grid-template-columns: 1fr; }
}

.text-signal-orange { color: var(--color-signal-orange); }

.pipeline-card {
  background-color: #0d0d0d;
}

.pipeline-logs {
  background-color: var(--color-obsidian-canvas);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-carbon-lift);
}

.log-line {
  opacity: 0; /* Hidden initially for animation */
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.4;
  white-space: pre-wrap;
}

/* Animation triggers sequentially based on --delay CSS variable */
.log-line.animate-in {
  animation: typing-appear 0.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  animation-delay: calc(var(--delay) * 0.15s);
}

@keyframes typing-appear {
  0% { opacity: 0; transform: translateY(4px); }
  100% { opacity: 1; transform: translateY(0); }
}

.substep-gate {
  border: 1px solid var(--color-ash-stroke);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-signal-orange);
  background: var(--color-carbon-lift);
  font-size: 10px;
}

.skill-tag {
  display: inline-block;
  color: var(--color-warm-granite);
  font-size: 11px;
}

/* Skills Table */
.skills-table {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-carbon-lift);
}

.skills-table-header {
  display: flex;
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-carbon-lift);
}

.skills-table-row {
  display: flex;
  padding: 24px;
  border-bottom: 1px solid var(--color-carbon-lift);
  transition: background-color 0.15s ease;
}

.skills-table-row:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.col-name {
  width: 45%;
  padding-right: 24px;
}

.col-desc {
  width: 55%;
}

@media (max-width: 768px) {
  .skills-table-header {
    display: none;
  }
  .skills-table-row {
    flex-direction: column;
    gap: 8px;
    padding: 20px 16px;
  }
  .col-name, .col-desc {
    width: 100%;
    padding-right: 0;
  }
  .col-name {
    color: var(--color-signal-orange);
  }
}

/* Code Block */
.code-block {
  background-color: var(--color-obsidian-canvas);
  border: 1px solid var(--color-ash-stroke);
  border-radius: var(--radius-buttons);
  padding: 16px 20px;
  font-family: var(--font-geist-mono);
  font-size: var(--text-body-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-pale-stone);
  width: 100%;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--color-warm-granite);
  cursor: pointer;
  font-family: var(--font-geist-mono);
  text-transform: uppercase;
  font-size: var(--text-caption);
  padding: 4px 8px;
  border-radius: var(--radius-buttons);
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}
.copy-btn:hover {
  color: var(--color-bone);
  background-color: var(--color-carbon-lift);
}

/* Footer */
footer {
  padding: var(--section-gap) 0;
  border-top: 1px solid var(--color-carbon-lift);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-56);
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--spacing-40); }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-24);
}

.footer-heading {
  color: var(--color-bone);
  font-weight: var(--font-weight-medium);
  margin-bottom: 4px;
}

.footer-link {
  color: var(--color-warm-granite);
  font-size: var(--text-body-sm);
  transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-link:hover {
  color: var(--color-bone);
}

/* Safety Bento Grid */
.safety-bento {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-auto-rows: minmax(160px, auto);
  gap: var(--element-gap);
}
@media (max-width: 900px) {
  .safety-bento {
    grid-template-columns: 1fr;
  }
}

/* Terminal Data Table */
.terminal-table {
  overflow-x: auto;
}
.table-row:hover {
  background: rgba(255, 255, 255, 0.03) !important;
}
.orchestrator-row:hover {
  background: rgba(238, 96, 24, 0.08) !important;
}
@media (max-width: 768px) {
  .terminal-table .table-row, .terminal-table .table-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .terminal-table .col-idx {
    display: none;
  }
}

/* Workflow Context Layout */
.workflow-layout {
  display: grid;
  grid-template-columns: 1fr minmax(auto, 650px) 1fr;
  gap: 40px;
  align-items: start;
  width: 100%;
}
.side-card {
  padding-left: 24px;
  border-left: 2px solid var(--color-carbon-lift);
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.side-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 1024px) {
  .workflow-layout {
    grid-template-columns: 1fr;
  }
  .workflow-side {
    display: none;
  }
}

/* Pipeline Trace Custom UI */
.pipeline-trace {
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
  padding: 32px 40px;
  background: #050505;
  border: 1px solid var(--color-carbon-lift);
  border-radius: 8px;
}
@media (max-width: 768px) {
  .pipeline-trace { padding: 24px; }
}
.trace-phase {
  display: flex;
  gap: 24px;
  position: relative;
  padding-bottom: 32px;
}
.trace-phase:last-child {
  padding-bottom: 0;
}
.trace-phase::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 36px;
  bottom: -8px;
  width: 1px;
  background: var(--color-carbon-lift);
  z-index: 1;
}
.trace-phase:last-child::before {
  display: none;
}

/* Animations */
.trace-phase, .trace-step, .trace-decision {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.trace-phase.animate-in, .trace-step.animate-in, .trace-decision.animate-in {
  opacity: 1;
  transform: translateY(0);
}
.phase-marker {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #080808;
  border: 1px solid var(--color-ash-stroke);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-geist-mono);
  font-size: 11px;
  color: var(--color-bone);
  z-index: 2;
  position: relative;
  flex-shrink: 0;
}
.phase-content {
  flex: 1;
  padding-top: 4px;
}
.phase-title {
  font-family: var(--font-geist-mono);
  font-size: 14px;
  color: var(--color-bone);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.trace-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.trace-step {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-muted);
  font-family: var(--font-geist-mono);
  font-size: 13px;
}
.trace-step::before {
  content: '>';
  color: var(--color-ash-stroke);
}
.trace-step.highlight {
  color: var(--color-bone);
  background: rgba(255,255,255,0.03);
  padding: 12px 16px;
  border-radius: 4px;
  margin-left: -16px;
  border-left: 2px solid var(--color-bone);
}
.trace-step.highlight::before {
  display: none;
}
.trace-step.highlight.final {
  border-left-color: var(--color-signal-orange);
  background: rgba(238,96,24,0.05);
  color: var(--color-signal-orange);
}
.trace-decision {
  margin: 8px 0 16px -16px;
  padding: 16px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--color-carbon-lift);
  border-radius: 6px;
  font-family: var(--font-geist-mono);
}
.trace-decision.human-gate {
  border-color: rgba(238,96,24,0.3);
}
.decision-node {
  color: var(--color-bone);
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.decision-node span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--color-carbon-lift);
  border-radius: 4px;
  font-size: 11px;
}
.trace-decision.human-gate .decision-node span {
  background: rgba(238,96,24,0.15);
  color: var(--color-signal-orange);
}
.decision-branches {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-left: 9px;
  border-left: 1px dashed var(--color-ash-stroke);
  padding-left: 16px;
}
.trace-decision.human-gate .decision-branches {
  border-left-color: rgba(238,96,24,0.3);
}
.branch {
  font-size: 12px;
  color: var(--color-muted);
}
.branch span {
  color: var(--color-bone);
  font-weight: 500;
  margin-right: 6px;
}
.trace-decision.human-gate .branch span {
  color: var(--color-signal-orange);
}
.branch em {
  color: var(--color-warm-granite);
  font-style: normal;
  margin-left: 6px;
}

/* Performance Optimization: Skip rendering offscreen elements */
#workflow, #safety, #skills {
  content-visibility: auto;
  contain-intrinsic-size: 600px;
}