/* ============================================
   BIT Index Tabula — Research Styles
   Specialized styles for research papers
   ============================================ */

/* Research Detail Page Layout */
.research-page {
  padding-top: 80px;
}

.research-header {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-border);
}

.research-meta-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.research-title {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
}

.research-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.research-sidebar {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
}

.sidebar-section {
  margin-bottom: var(--space-lg);
}

.sidebar-section:last-child {
  margin-bottom: 0;
}

.sidebar-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.sidebar-value {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}

/* Table of Contents */
.toc {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  position: sticky;
  top: 100px;
}

.toc-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.toc-list {
  list-style: none;
}

.toc-list li {
  margin-bottom: var(--space-sm);
}

.toc-list a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: block;
  padding: var(--space-xs) 0;
  border-bottom: none;
  transition: color var(--transition-fast);
}

.toc-list a:hover,
.toc-list a.active {
  color: var(--color-symbiosis);
}

.toc-list a.active {
  font-weight: 500;
}

.toc-list .toc-level-2 {
  padding-left: var(--space-md);
}

.toc-list .toc-level-3 {
  padding-left: var(--space-xl);
}

/* Research Body */
.research-body {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-3xl);
  padding: var(--space-3xl) 0;
}

.research-content {
  max-width: var(--content-width);
}

.research-content h2 {
  font-size: 1.5rem;
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.research-content h2:first-child {
  margin-top: 0;
}

.research-content h3 {
  font-size: 1.125rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.research-content h4 {
  font-size: 1rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

/* Math Display */
.equation-block {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: 8px;
  text-align: center;
  overflow-x: auto;
}

.equation-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

.equation-inline {
  padding: 0 var(--space-xs);
}

/* KaTeX overrides */
.katex {
  font-size: 1.1em;
}

.katex-display {
  margin: var(--space-lg) 0;
}

/* Theorems, Definitions, etc. */
.theorem,
.definition,
.proposition,
.lemma,
.corollary {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  border-radius: 8px;
  background: white;
  border: 1px solid var(--color-border);
}

.theorem {
  border-left: 4px solid var(--color-invariant);
}

.definition {
  border-left: 4px solid var(--color-framework);
}

.proposition {
  border-left: 4px solid var(--color-human);
}

.lemma,
.corollary {
  border-left: 4px solid var(--color-history);
}

.theorem-header,
.definition-header {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
}

.theorem-header span,
.definition-header span {
  font-weight: 500;
  font-style: italic;
}

/* Proofs */
.proof {
  margin: var(--space-lg) 0;
  padding-left: var(--space-lg);
  border-left: 2px solid var(--color-border);
}

.proof-header {
  font-family: var(--font-sans);
  font-weight: 500;
  font-style: italic;
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
}

.qed {
  text-align: right;
  font-size: 1.25rem;
  margin-top: var(--space-sm);
}

/* Figures */
.figure {
  margin: var(--space-xl) 0;
  text-align: center;
}

.figure img,
.figure svg {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.figure-caption {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-md);
}

.figure-caption strong {
  font-weight: 600;
  color: var(--color-text);
}

/* Tables */
.research-content table {
  width: 100%;
  margin: var(--space-xl) 0;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 0.875rem;
}

.research-content th,
.research-content td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.research-content th {
  background: var(--color-bg-alt);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.research-content tr:hover {
  background: rgba(140, 80, 220, 0.02);
}

/* Blockquotes */
.research-content blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--color-symbiosis);
  background: rgba(140, 80, 220, 0.03);
  font-style: italic;
}

.research-content blockquote cite {
  display: block;
  margin-top: var(--space-sm);
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Code blocks */
.research-content pre {
  margin: var(--space-lg) 0;
  padding: var(--space-lg);
  background: #1a1a1a;
  color: #e0e0e0;
  border-radius: 8px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

.research-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Lists */
.research-content ul,
.research-content ol {
  margin: var(--space-lg) 0;
  padding-left: var(--space-xl);
}

.research-content li {
  margin-bottom: var(--space-sm);
}

.research-content li::marker {
  color: var(--color-text-muted);
}

/* References/Bibliography */
.references {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.references h2 {
  border-bottom: none;
}

.reference-list {
  list-style: none;
  padding-left: 0;
}

.reference-list li {
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
  position: relative;
  font-size: 0.9375rem;
}

.reference-list li::before {
  content: attr(data-ref);
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-symbiosis);
}

.reference-list .ref-authors {
  font-weight: 500;
}

.reference-list .ref-title {
  font-style: italic;
}

.reference-list .ref-journal {
  color: var(--color-text-secondary);
}

.reference-list .ref-doi {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-framework);
}

/* Appendix */
.appendix {
  margin-top: var(--space-3xl);
  padding: var(--space-xl);
  background: var(--color-bg-alt);
  border-radius: 8px;
}

.appendix h2 {
  font-size: 1.25rem;
  margin-top: 0;
  border-bottom: none;
}

/* Four Causes Diagram */
.four-causes-diagram {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.cause-box {
  padding: var(--space-lg);
  border-radius: 8px;
  text-align: center;
  transition: transform var(--transition-normal);
}

.cause-box:hover {
  transform: translateY(-4px);
}

.cause-box.hyle {
  background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
  border: 1px solid #7dd3fc;
}

.cause-box.morphe {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1px solid #fcd34d;
}

.cause-box.nous {
  background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 100%);
  border: 1px solid #f9a8d4;
}

.cause-box.telos {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  border: 1px solid #6ee7b7;
}

.cause-greek {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.cause-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.cause-desc {
  font-family: var(--font-sans);
  font-size: 0.875rem;
}

/* Symbiosis Spectrum */
.symbiosis-spectrum {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.spectrum-bar {
  height: 8px;
  background: linear-gradient(to right, 
    var(--color-human) 0%, 
    var(--color-symbiosis) 50%, 
    var(--color-ai) 100%);
  border-radius: 4px;
  margin-bottom: var(--space-md);
}

.spectrum-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.spectrum-labels span:first-child {
  color: var(--color-human);
}

.spectrum-labels span:last-child {
  color: var(--color-ai);
}

/* Timeline (Evolution of Systems) */
.timeline {
  margin: var(--space-xl) 0;
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom,
    var(--color-history) 0%,
    var(--color-symbiosis) 100%);
}

.timeline-era {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline-era::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) - 5px);
  top: 0.5em;
  width: 12px;
  height: 12px;
  background: var(--color-symbiosis);
  border: 3px solid white;
  border-radius: 50%;
}

.era-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.era-title {
  font-family: var(--font-sans);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.era-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .research-meta-grid {
    grid-template-columns: 1fr;
  }
  
  .research-body {
    grid-template-columns: 1fr;
  }
  
  .toc {
    position: static;
    margin-bottom: var(--space-xl);
  }
  
  .four-causes-diagram {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .research-title {
    font-size: 1.75rem;
  }
  
  .four-causes-diagram {
    grid-template-columns: 1fr;
  }
  
  .research-content table {
    font-size: 0.8125rem;
  }
  
  .research-content th,
  .research-content td {
    padding: var(--space-xs) var(--space-sm);
  }
}

/* Print styles for research pages */
@media print {
  .toc {
    display: none;
  }
  
  .research-body {
    grid-template-columns: 1fr;
  }
  
  .research-content {
    max-width: none;
  }
  
  .equation-block,
  .theorem,
  .definition {
    break-inside: avoid;
  }
}