/* ═══════════════════════════════════════════════════════════════════════════════
   ASI TECHNOLOGY — CORE STYLESHEET
   Design tokens derived from GAR v6.3 (Dark Scholarly Theme)
   ⟐≡≡≡◈≡≡≡⟐
   ═══════════════════════════════════════════════════════════════════════════════ */

:root {
  /* Surface palette */
  --asi-surface-primary: hsl(220, 30%, 4%);
  --asi-surface-secondary: hsl(220, 20%, 7%);
  --asi-surface-elevated: hsl(220, 15%, 11%);
  --asi-surface-hover: hsl(220, 15%, 14%);

  /* Text hierarchy */
  --asi-text-primary: hsl(220, 15%, 93%);
  --asi-text-secondary: hsl(215, 12%, 76%);
  --asi-text-muted: hsl(220, 8%, 50%);
  --asi-text-faint: hsl(220, 6%, 35%);

  /* Accent colors */
  --asi-accent-blue: hsl(200, 70%, 55%);
  --asi-accent-amber: hsl(35, 75%, 55%);
  --asi-accent-green: hsl(150, 50%, 45%);
  --asi-accent-red: hsl(0, 60%, 55%);

  /* Borders */
  --asi-border-subtle: hsl(220, 10%, 15%);
  --asi-border-visible: hsl(220, 10%, 28%);

  /* Spacing (8px grid) */
  --asi-space-xs: 0.5rem;
  --asi-space-sm: 0.75rem;
  --asi-space-md: 1rem;
  --asi-space-lg: 1.5rem;
  --asi-space-xl: 2rem;
  --asi-space-xxl: 3rem;
  --asi-space-xxxl: 4rem;

  /* Typography */
  --asi-font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --asi-font-display: Georgia, 'Times New Roman', serif;
  --asi-font-mono: 'SF Mono', 'JetBrains Mono', Consolas, monospace;
  --asi-line-body: 1.7;
  --asi-line-heading: 1.2;

  /* Transitions */
  --asi-transition-fast: 0.15s ease;
  --asi-transition-smooth: 0.3s ease;
  --asi-transition-slow: 0.6s ease;

  /* Radius */
  --asi-radius-sm: 4px;
  --asi-radius-md: 8px;
  --asi-radius-lg: 12px;
}

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

html {
  font-size: 18px;
}

body {
  background: var(--asi-surface-primary);
  color: var(--asi-text-secondary);
  font-family: var(--asi-font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: var(--asi-line-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   LANDING PAGE
   ═══════════════════════════════════════════════════════════════════════════════ */

.landing {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--asi-space-xl);
}

.landing .signature {
  font-family: var(--asi-font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--asi-text-muted);
  margin-bottom: var(--asi-space-xxl);
  opacity: 0.6;
}

.landing .company-name {
  font-family: var(--asi-font-body);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--asi-text-muted);
  margin-bottom: var(--asi-space-xxxl);
}

.landing .code-input-wrapper {
  position: relative;
  width: 100%;
  max-width: 320px;
}

.landing .code-input {
  width: 100%;
  background: transparent;
  border: 1px solid var(--asi-border-subtle);
  border-radius: var(--asi-radius-sm);
  padding: var(--asi-space-sm) var(--asi-space-md);
  font-family: var(--asi-font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--asi-text-primary);
  text-align: center;
  outline: none;
  transition: border-color var(--asi-transition-smooth);
}

.landing .code-input::placeholder {
  color: var(--asi-text-faint);
  letter-spacing: 0.05em;
}

.landing .code-input:focus {
  border-color: var(--asi-text-muted);
}

.landing .code-error {
  position: absolute;
  bottom: -2rem;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--asi-accent-red);
  opacity: 0;
  transition: opacity var(--asi-transition-fast);
}

.landing .code-error.visible {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   DASHBOARD
   ═══════════════════════════════════════════════════════════════════════════════ */

.dashboard {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--asi-space-xxl) var(--asi-space-xl);
}

.dashboard-header {
  text-align: center;
  padding-bottom: var(--asi-space-xxl);
  border-bottom: 1px solid var(--asi-border-subtle);
  margin-bottom: var(--asi-space-xxl);
}

.dashboard-header .signature {
  font-family: var(--asi-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--asi-text-muted);
  margin-bottom: var(--asi-space-lg);
  opacity: 0.5;
}

.dashboard-header .identity {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--asi-text-primary);
  margin-bottom: var(--asi-space-xs);
}

.dashboard-header .identity-role {
  font-size: 0.9rem;
  color: var(--asi-text-muted);
}

/* Stats bar */
.stats-bar {
  display: flex;
  gap: var(--asi-space-xxl);
  justify-content: center;
  padding: var(--asi-space-lg) 0;
  margin-bottom: var(--asi-space-xxl);
  border-bottom: 1px solid var(--asi-border-subtle);
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--asi-text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--asi-text-muted);
  margin-top: var(--asi-space-xs);
}

/* Section headings */
.section-title {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--asi-text-muted);
  margin-bottom: var(--asi-space-lg);
}

/* Project cards grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--asi-space-lg);
  margin-bottom: var(--asi-space-xxxl);
}

.project-card {
  background: var(--asi-surface-secondary);
  border: 1px solid var(--asi-border-subtle);
  border-radius: var(--asi-radius-md);
  padding: var(--asi-space-lg);
  cursor: pointer;
  transition: all var(--asi-transition-smooth);
  text-decoration: none;
  display: block;
}

.project-card:hover {
  background: var(--asi-surface-elevated);
  border-color: var(--asi-border-visible);
  transform: translateY(-2px);
}

.project-card .card-type {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--asi-text-faint);
  margin-bottom: var(--asi-space-sm);
}

.project-card .card-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--asi-text-primary);
  margin-bottom: var(--asi-space-xs);
  line-height: var(--asi-line-heading);
}

.project-card .card-desc {
  font-size: 0.85rem;
  color: var(--asi-text-secondary);
  margin-bottom: var(--asi-space-md);
}

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

.project-card .card-audience {
  font-size: 0.75rem;
  color: var(--asi-text-muted);
}

.project-card .card-status {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 3px;
  background: hsla(150, 50%, 45%, 0.15);
  color: var(--asi-accent-green);
}

.project-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--asi-space-xs);
  margin-top: var(--asi-space-sm);
}

.project-card .tag {
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: 3px;
  background: var(--asi-surface-elevated);
  color: var(--asi-text-muted);
}

/* Semantic network canvas */
.network-container {
  position: relative;
  background: var(--asi-surface-secondary);
  border: 1px solid var(--asi-border-subtle);
  border-radius: var(--asi-radius-md);
  margin-bottom: var(--asi-space-xxxl);
  overflow: hidden;
}

.network-canvas {
  width: 100%;
  height: 600px;
  display: block;
}

.network-legend {
  display: flex;
  gap: var(--asi-space-lg);
  padding: var(--asi-space-sm) var(--asi-space-lg);
  border-top: 1px solid var(--asi-border-subtle);
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--asi-space-xs);
  font-size: 0.7rem;
  color: var(--asi-text-muted);
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* Node tooltip */
.node-tooltip {
  position: absolute;
  background: var(--asi-surface-elevated);
  border: 1px solid var(--asi-border-visible);
  border-radius: var(--asi-radius-sm);
  padding: var(--asi-space-sm) var(--asi-space-md);
  font-size: 0.8rem;
  color: var(--asi-text-primary);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--asi-transition-fast);
  z-index: 10;
  max-width: 250px;
}

.node-tooltip.visible {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   DASHBOARD TIMELINE
   ═══════════════════════════════════════════════════════════════════════════════ */

.dash-timeline {
  position: relative;
  margin-bottom: var(--asi-space-xxxl);
  padding-left: var(--asi-space-xl);
}

.dash-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--asi-border-visible), var(--asi-border-subtle));
}

.dash-timeline-entry {
  display: flex;
  align-items: flex-start;
  gap: var(--asi-space-md);
  padding: var(--asi-space-sm) 0;
  position: relative;
  transition: background var(--asi-transition-fast);
  border-radius: var(--asi-radius-sm);
  padding-left: var(--asi-space-sm);
  margin-left: calc(-1 * var(--asi-space-sm));
}

.dash-timeline-entry:hover {
  background: var(--asi-surface-secondary);
}

.dash-timeline-date {
  flex-shrink: 0;
  width: 52px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--asi-text-muted);
  letter-spacing: 0.02em;
  padding-top: 2px;
}

.dash-timeline-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  position: relative;
}

.dash-timeline-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: inherit;
  opacity: 0.15;
}

.dash-timeline-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.dash-timeline-type {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

.dash-timeline-name {
  font-size: 0.85rem;
  color: var(--asi-text-secondary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 600px;
}

/* Highlighted domain stat */
.stat-highlight .stat-value {
  color: var(--asi-accent-amber);
}

.stat-highlight .stat-label {
  color: var(--asi-accent-amber);
  opacity: 0.7;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  html { font-size: 16px; }

  .dashboard {
    padding: var(--asi-space-lg) var(--asi-space-md);
  }

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

  .stats-bar {
    flex-wrap: wrap;
    gap: var(--asi-space-lg);
  }

  .network-canvas {
    height: 450px;
  }

  .dash-timeline {
    padding-left: var(--asi-space-lg);
  }

  .dash-timeline-date {
    width: 42px;
    font-size: 0.68rem;
  }

  .dash-timeline-name {
    max-width: 280px;
  }
}

@media (max-width: 480px) {
  .landing .company-name {
    font-size: 0.95rem;
  }

  .landing .code-input-wrapper {
    max-width: 280px;
  }
}