/* ═══════════════════════════════════════════════════
   REFIA HOMEPAGE V2.2 — POLISHED
   Restored Diagnostics, Expanded Utility, Tightened Spacing
   ═══════════════════════════════════════════════════ */

/* ═══ DESIGN TOKENS ═══ */
/* Note: Using global tokens from default.css where possible.
   Only home-specific overrides or new variables should be here. */

/* ═══ RESET & BASE ═══ */
/* Handled by global CSS (base.css / default.css) */
/*
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
*/

/* Home-specific body overrides if needed, otherwise handled by theme */
/*
body {
    background-color: var(--color-bg-void);
    ...
}
*/
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.7);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(6, 182, 212, 0);
  }
}

/* ═══ UTILITY ═══ */
/* .container handled by global layout or define specific home container */
.container {
  max-width: 1400px; /* var(--container-max) might not be defined in base */
  margin: 0 auto;
  padding: 0 40px;
}
.blink-text {
  animation: blink 2s infinite;
}
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.glass-panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  backdrop-filter: blur(4px);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}
.solid-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}
.solid-card:hover,
.glass-panel:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 0 18px var(--color-glow);
}

.link-cyan {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.link-green {
  color: var(--color-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.link-purple {
  color: var(--color-accent-purple);
  font-weight: 600;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}
.link-cyan:hover,
.link-green:hover,
.link-purple:hover {
  opacity: 0.8;
}

/* ═══ HERO ═══ */
.hero-outer {
  position: relative;
  width: 100%;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
}
.hero-split {
  flex: 1;
  display: grid;
  grid-template-columns: 58fr 42fr;
  gap: var(--space-lg);
  align-items: center;
  /* Reduced top padding */
  padding: var(--space-lg) var(--space-xl) var(--space-lg) var(--space-xl);
}
.hero-left h1 {
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  text-shadow:
    0 0 40px rgba(0, 0, 0, 0.6),
    0 0 80px rgba(6, 182, 212, 0.15);
}
.hero-left h1 .accent {
  color: var(--color-primary);
}
.hero-left .eyebrow {
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-lg);
  opacity: 0.85;
}
.hero-bullets {
  list-style: none;
  margin: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.hero-bullets li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 1rem;
  color: var(--color-text-secondary);
}
.hero-bullets li::before {
  content: "▸";
  color: var(--color-primary);
}
.hero-cta-row {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-xl);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #020617;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 14px 32px;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all var(--transition-base);
}
.btn-primary:hover {
  box-shadow: 0 0 24px var(--color-glow);
  transform: translateY(-1px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 13px 28px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all var(--transition-base);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 14px var(--color-glow);
}

/* HERO RIGHT (Updated) */
.hero-right {
  margin-top: 20px;
} /* Add space above as requested */
.hero-hub-card {
  position: relative;
}
.hub-card-visual {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--color-card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
}
#heroHubCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hub-live-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-family-mono);
  font-size: 0.65rem;
  color: var(--color-secondary);
  background: rgba(34, 197, 94, 0.1);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.1em;
}
.pulse-dot {
  width: 6px;
  height: 6px;
  background: var(--color-secondary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulse 2s infinite;
}
.hub-card-body {
  padding: var(--space-lg);
}
.hub-id-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
}
.hub-badge {
  font-family: var(--font-family-mono);
  font-size: 0.7rem;
  color: var(--color-primary);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 4px 8px;
  border-radius: 4px;
}
.hub-status {
  font-family: var(--font-family-mono);
  font-size: 0.65rem;
  color: var(--color-warning);
  letter-spacing: 0.1em;
}
.hub-card-body h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}
.hub-card-body p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

/* ASSET MATRIX */
.asset-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: var(--space-lg);
}
.asset-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 12px 8px 4px 8px; /* Larger top, smaller bottom */
  cursor: pointer;
  transition: all var(--transition-base);
}
.asset-item:hover {
  background: rgba(6, 182, 212, 0.1);
  border-color: currentColor; /* Use the item's specific color on hover */
  transform: translateY(-2px);
}
.asset-item svg {
  width: 24px;
  height: 24px;
  stroke: currentColor; /* Inherit from parent .asset-item style */
  stroke-width: 1.5;
  fill: none;
}
/* Removed specific hover override to allow inline styles to persist or use brightness filter */
.asset-item span {
  font-family: var(--font-family-mono);
  font-size: 1rem;
  text-transform: uppercase;
  color: var(
    --color-text-secondary
  ); /* Keep text neutral unless requested otherwise */
}
.asset-item:hover span {
  color: var(--color-text-primary);
}

.hub-read-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  background: var(--color-primary);
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  border-radius: 4px;
  transition: opacity 0.2s;
}
.hub-read-link:hover {
  opacity: 0.9;
}
.hub-read-link svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* HERO DOCK */
.hero-dock {
  height: auto;
  flex-shrink: 0;
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--color-glow);
  border-bottom: 1px solid var(--color-glow);
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md);
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}
.dock-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-card-bg);
  color: var(--color-text-secondary);
  cursor: pointer;
  min-width: 110px;
  transition: all 0.2s;
}
.dock-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 16px var(--color-glow);
  background: rgba(6, 182, 212, 0.06);
}
.dock-link .dock-icon svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
}
.dock-link .dock-label {
  font-family: var(--font-family-mono);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 600;
}
.dock-link--updates .dock-icon svg {
  stroke: var(--color-accent-pink);
}
.dock-link--updates:hover {
  border-color: var(--color-accent-pink);
  color: var(--color-accent-pink);
}

/* Ribbon Styles */
.ribbon-wrapper {
  position: absolute;
  top: 0;
  right: 0;
  width: 150px;
  height: 150px;
  overflow: hidden;
  z-index: 10;
  pointer-events: none;
}
.ribbon {
  background: var(--color-primary);
  color: #000;
  text-align: center;
  transform: rotate(45deg);
  position: relative;
  padding: 5px 0;
  top: 15px;
  right: -20px;
  width: 200px;
  font-weight: 700;
  font-size: 0.9rem;
  font-family: var(--font-family-mono);
  box-shadow: 0px 0px 12px 4px rgba(0, 136, 151, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ═══ DIAGNOSTIC (Restored from V2) ═══ */
.diagnostic-section {
  padding: var(--space-2xl) 0;
  background: rgba(6, 182, 212, 0.02);
}
.diagnostic-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.section-label {
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-bottom: var(--space-sm);
}
.section-heading {
  font-weight: 800;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
}
.section-heading .accent {
  color: var(--color-primary);
}
.diagnostic-subhead {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}
.diagnostic-quiz {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-xl);
  text-align: left;
  margin-top: var(--space-xl);
}
.quiz-progress {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.quiz-progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}
.quiz-progress-dot.active {
  background: var(--color-primary);
  box-shadow: 0 0 8px var(--color-glow);
}
.quiz-question {
  display: none;
}
.quiz-question.active {
  display: block;
}
.quiz-question h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.quiz-option {
  padding: var(--space-md) var(--space-lg);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: left;
}
.quiz-option:hover {
  border-color: var(--color-primary);
  background: rgba(6, 182, 212, 0.05);
  color: var(--color-text-primary);
}
.quiz-option.selected {
  border-color: var(--color-primary);
  background: rgba(6, 182, 212, 0.1);
  color: var(--color-primary);
}
.quiz-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xl);
}
.quiz-result {
  display: none;
  text-align: center;
}
.quiz-result.active {
  display: block;
}
.result-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: rgba(6, 182, 212, 0.1);
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius-md);
  font-family: var(--font-family-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin: var(--space-xl) 0;
}
.result-badge svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}
.quiz-result h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}
.quiz-result p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}
.recommended-path {
  background: rgba(6, 182, 212, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  text-align: left;
}
.recommended-path h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  font-family: var(--font-family-mono);
  text-transform: uppercase;
}
.recommended-path ol {
  padding-left: 24px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.result-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-xl);
}

/* ═══ UTILITY SECTION (Expanded) ═══ */
.utility-section {
  padding-top: 40px;
  background: rgba(6, 182, 212, 0.025);
}

.utility-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 60px;
}

.utility-split-content .section-sub {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 24px 0 32px 0;
  max-width: 90%;
}

.utility-feature-block {
  margin-top: 24px;
}

.utility-feature-block h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 12px;
}

.utility-feature-block p {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.utility-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
  padding-left: 0; /* Reset */
}

.utility-feature-list li {
  display: flex;
  align-items: flex-start; /* Align with top of text if wrapped */
  gap: 16px;
  font-size: 1rem;
  color: var(--color-text-primary);
  font-weight: 500;
}

.utility-feature-list .li-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.utility-feature-list .li-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-primary);
  stroke-width: 1.5;
  fill: none;
}

/* Enhanced Deck Mockup */
.deck-mockup-enhanced {
  background: #1e1e24; /* Dark browser chrome default */
  border-radius: 12px;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  display: flex;
  flex-direction: column;
}

.light-mode .deck-mockup-enhanced {
  background: #ffffff; /* Light browser chrome */
}

.deck-window-controls {
  height: 32px;
  background: rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.light-mode .deck-window-controls {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.control {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #666; /* Neutral grey */
  opacity: 0.3;
}

.deck-toolbar {
  height: 36px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  padding: 0 12px;
  justify-content: space-between;
}
.light-mode .deck-toolbar {
  background: rgba(0, 0, 0, 0.02);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.tool-group {
  height: 6px;
  width: 80px;
  background: currentColor;
  border-radius: 3px;
  opacity: 0.1;
  color: var(--color-text-secondary);
}

.deck-slide-area {
  flex-grow: 1;
  display: flex;
  background: #121215; /* Dark slide canvas */
}
.light-mode .deck-slide-area {
  background: #f1f5f9; /* Light slide canvas */
}

.slide-sidebar {
  width: 60px;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 12px;
  gap: 12px;
  background: rgba(0, 0, 0, 0.2);
}
.light-mode .slide-sidebar {
  border-right: 1px solid rgba(0, 0, 0, 0.05);
  background: rgba(255, 255, 255, 0.5);
}

.slide-thumb {
  width: 40px;
  height: 25px;
  background: var(--color-surface);
  border-radius: 2px;
  border: 1px solid var(--color-border);
  opacity: 0.5;
  transition: all 0.2s;
  cursor: pointer;
}
.slide-thumb.active {
  border-color: var(--color-primary);
  opacity: 1;
  box-shadow: 0 0 0 1px var(--color-primary);
}

.slide-canvas {
  flex-grow: 1;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide-content {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000; /* Deep Void for Slide */
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: 20px;
  display: none; /* Hidden by default for animation */
  flex-direction: column;
  position: relative;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.light-mode .slide-content {
  background: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.slide-content.active {
  display: flex;
  animation: fadeSlide 0.4s ease-out;
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-header {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
  margin-bottom: 24px;
}

.slide-title {
  font-family: var(--font-family-mono);
  font-weight: 700;
  font-size: 0.7rem;
  color: var(--color-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.slide-logo {
  font-weight: 900;
  color: var(--color-primary);
  font-size: 0.7rem;
  font-family: var(--font-family-mono);
}

.slide-footer {
  margin-top: auto;
  font-family: var(--font-family-mono);
  font-size: 0.6rem;
  color: var(--color-text-secondary);
  text-align: right;
  letter-spacing: 0.1em;
}

.slide-body {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
}

/* Diagram Styles - Tech/HUD Look */
.diagram-node {
  padding: 6px 12px;
  border: 1px solid var(--color-text-primary);
  font-weight: 700;
  font-size: 0.65rem;
  color: var(--color-text-primary);
  text-transform: uppercase;
  font-family: var(--font-family-mono);
  background: transparent;
  position: relative;
}
/* Corner markers for HUD feel */
.diagram-node::before,
.diagram-node::after {
  content: "";
  position: absolute;
  width: 4px;
  height: 4px;
  border: 1px solid var(--color-primary);
  transition: all 0.3s;
}
.diagram-node::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}
.diagram-node::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.node-b {
  background: rgba(6, 182, 212, 0.1); /* Cyan hint */
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.diagram-arrow {
  width: 24px;
  height: 1px;
  background: var(--color-text-secondary);
  position: relative;
}
.diagram-arrow::after {
  content: "";
  position: absolute;
  right: -4px;
  top: -3px;
  border-left: 4px solid var(--color-text-secondary);
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
}

.diagram-annotation {
  position: absolute;
  bottom: 0;
  right: 0;
  color: var(--color-danger);
  font-weight: 700;
  font-size: 0.6rem;
  border: 1px solid var(--color-danger);
  padding: 4px 8px;
  transform: rotate(-5deg);
  background: rgba(239, 68, 68, 0.1); /* Red background */
  font-family: var(--font-family-mono);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.2);
}

/* Slide 2: Chart */
.slide-body--chart {
  align-items: flex-end;
  padding-bottom: 10px;
}
.chart-axis {
  position: absolute;
  left: 20%;
  bottom: 10px;
  width: 60%;
  height: 1px;
  background: var(--color-border);
}
.chart-line {
  width: 60%;
  height: 40px;
  border-top: 2px solid var(--color-secondary);
  border-right: 2px solid var(--color-secondary);
  border-radius: 0 40px 0 0;
  margin-bottom: 10px;
}
.chart-label {
  position: absolute;
  top: 20px;
  left: 30%;
  font-size: 0.6rem;
  color: var(--color-secondary);
  font-family: var(--font-family-mono);
}

/* Slide 3: Stack */
.slide-body--stack {
  flex-direction: column;
  gap: 4px;
}
.stack-layer {
  width: 80px;
  height: 16px;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  font-family: var(--font-family-mono);
  color: var(--color-text-secondary);
}
.stack-layer.l3 {
  background: rgba(var(--color-primary-rgb), 0.1);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.stack-layer.l2 {
  background: rgba(var(--color-secondary-rgb), 0.1);
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

@media (max-width: 900px) {
  .utility-split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ═══ ACTIVE PROTOCOL SECTION ═══ */
.protocol-section {
  margin-top: 100px;
} /* Extra space */
.articles-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}
.article-card {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 300px;
}
.article-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-lg);
}
@media (max-width: 800px) {
  .article-card--featured {
    grid-template-columns: 1fr;
    grid-column: span 1;
  }
}

.card-meta {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: var(--space-md);
}
.card-tag {
  font-family: var(--font-family-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(6, 182, 212, 0.25);
}
.card-tag--green {
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-secondary);
  border-color: rgba(34, 197, 94, 0.25);
}
.card-tag--purple {
  background: rgba(168, 85, 247, 0.1);
  color: var(--color-accent-purple);
  border-color: rgba(168, 85, 247, 0.25);
}
.card-date {
  font-family: var(--font-family-mono);
  font-size: 0.7rem;
  color: var(--color-text-placeholder);
}
.article-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
  transition: color 0.2s;
}
.article-card:hover h3 {
  color: var(--color-primary);
}
.article-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.card-footer {
  margin-top: auto;
  padding-top: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-family-mono);
  font-size: 0.7rem;
  color: var(--color-text-placeholder);
}
.card-footer svg {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}
.card-resources {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.resource-pill {
  font-size: 0.75rem;
  color: var(--color-primary);
  background: rgba(6, 182, 212, 0.05);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(6, 182, 212, 0.15);
  display: flex;
  align-items: center;
  gap: 6px;
}
.resource-pill svg {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}

/* ═══ RADAR SECTION (Incoming) ═══ */
.radar-section {
  padding-top: 40px;
  background: rgba(6, 182, 212, 0.015);
} /* Extra space */
.knowledge-map-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.hub-card-mini {
  padding: 24px;
  position: relative;
  min-height: 180px;
  display: flex;
  flex-direction: column;
}
.hub-top-row {
  margin-bottom: 12px;
}
.hub-mid {
  flex-grow: 1;
}
.hub-bot-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: 12px;
}
.hub-bot-row h3 {
  font-size: 1.1rem;
  max-width: 80%;
  margin: 0;
}
.hub-bot-row .hub-number {
  font-family: var(--font-family-mono);
  font-size: 1.5rem;
  color: var(--color-border);
  font-weight: 700;
  line-height: 1;
}
.hub-status--soon {
  background: rgba(251, 191, 36, 0.1);
  color: var(--color-warning);
  border: 1px solid rgba(251, 191, 36, 0.25);
  padding: 3px 8px;
  border-radius: 4px;
  font-family: var(--font-family-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
}
.hub-locked {
  opacity: 0.7;
  pointer-events: none;
}
.locked-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}
.hub-locked:hover .locked-overlay {
  opacity: 1;
}
.locked-overlay svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-text-placeholder);
  fill: none;
  stroke-width: 1.5;
}

/* ═══ COMPARISON & SHARED ═══ */
.problem-strip {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 80px 20px 60px 20px;
  background: rgba(6, 182, 212, 0.02);
}
.problem-inner blockquote {
  font-size: 1.5rem;
  color: var(--color-text-primary);
  font-style: italic;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}
.quote-mark {
  font-size: 4rem;
  color: var(--color-primary);
  display: block;
  margin-bottom: 16px;
  opacity: 0.4;
  line-height: 0.5;
}
.attribution {
  display: block;
  margin-top: 16px;
  font-family: var(--font-family-mono);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.comparison-table {
  margin-top: var(--space-xl);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}
.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.comparison-col {
  padding: var(--space-lg);
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
}
.comparison-col h4 {
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-md);
}
.comparison-col--others {
  background: var(--color-surface);
}
.comparison-col--others h4 {
  color: var(--color-text-secondary);
}
.comparison-col--refia h4 {
  color: var(--color-primary);
}
.comparison-col p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}
.comparison-col--refia {
  border-color: var(--color-primary);
  background: rgba(6, 182, 212, 0.03);
}
.metrics-strip {
  background: rgba(6, 182, 212, 0.01);
  padding: 40px 20px;
}
.metrics-row {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  padding: var(--space-xl) var(--space-md);
  flex-wrap: wrap;
}
.metric {
  text-align: center;
}
.metric .value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  text-shadow: 0 0 14px var(--color-glow);
  font-family: var(--font-family-mono);
}
.metric .label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
  font-family: var(--font-family-mono);
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.pillar-card {
  padding: var(--space-lg);
  position: relative;
  background: var(--color-surface);
  border-top: 4px solid var(--card-accent, var(--color-border));
}
.pillar-card h3 {
  margin-top: 16px;
  margin-bottom: 12px;
  font-size: 1.1rem;
  color: var(--color-text-primary);
}
.pillar-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}
.pillar-number {
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: 3rem;
  opacity: 0.1;
  font-weight: 800;
  color: var(--color-text-primary);
  font-family: var(--font-family-mono);
  line-height: 1;
}
.pillar-icon svg {
  width: 32px;
  height: 32px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}
.pillar-tag {
  display: inline-block;
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 12px;
  border-radius: 4px;
  color: var(--card-accent);
  background: color-mix(in srgb, var(--card-accent), transparent 96%);
  border: 1px solid color-mix(in srgb, var(--card-accent), transparent 80%);
  transition: all 0.2s ease;
  text-decoration: none; /* Ensure link underline is removed */
}
.pillar-tag:hover {
  background: color-mix(in srgb, var(--card-accent), transparent 80%);
}
.pillar-tag--primary {
  --card-accent: var(--color-primary);
  font-size: 0.9rem; /* Match old button size */
  padding: 12px 24px;
}

.pillar-card--provocative {
  --card-accent: var(--color-primary);
}
.pillar-card--provocative .pillar-icon {
  color: var(--card-accent);
}

.pillar-card--structural {
  --card-accent: var(--color-secondary);
}
.pillar-card--structural .pillar-icon {
  color: var(--card-accent);
}

.pillar-card--engineer {
  --card-accent: var(--color-accent-purple);
}
.pillar-card--engineer .pillar-icon {
  color: var(--card-accent);
}

.pillar-card--orange {
  --card-accent: #d97706; /* Amber 600 - Not as bright as the text */
}

.pillar-tag--status {
  cursor: default;
  pointer-events: none;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  /* Brighter colors for the status text as requested */
  color: #fbbf24; /* Amber 400 */
  border-color: rgba(251, 191, 36, 0.3);
  background: rgba(251, 191, 36, 0.1);
}
.pillar-tag--status:hover {
  background: rgba(251, 191, 36, 0.1); /* No hover effect */
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: all 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .hero-split {
    grid-template-columns: 1fr;
  }
  .comparison-row {
    grid-template-columns: 1fr;
  }
  .pillars-grid {
    grid-template-columns: 1fr;
  }
}