/* ============================================================
   paper.css — Project / Paper page styles
   Shared Future AI
   ============================================================ */

/* ── Paper page body override ───────────────────────────────── */
.paper-page {
  --section-gap: 80px;
}

/* ── Paper Hero ─────────────────────────────────────────────── */
.paper-hero {
  padding: 120px 0 64px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.paper-hero-inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.paper-venue-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
}

.paper-venue-divider {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.paper-venue-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-family: var(--font-display);
}

.paper-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 36px;
}

.paper-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.paper-authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 20px;
  margin-bottom: 16px;
}

.paper-author {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}

.paper-author sup {
  font-size: 0.65em;
  color: var(--accent);
}

.paper-affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  margin-bottom: 10px;
}

.paper-affiliations span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.paper-affiliations sup {
  font-size: 0.7em;
  color: var(--accent);
}

.paper-contact {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.paper-contact a {
  color: var(--accent);
  transition: color var(--transition);
}

.paper-contact a:hover { color: #8aadff; }

.paper-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

/* ── TL;DR strip ────────────────────────────────────────────── */
.paper-tldr {
  background: var(--accent-dim);
  border-bottom: 1px solid rgba(108, 143, 255, 0.2);
  padding: 20px 0;
}

.paper-tldr .container {
  display: flex;
  gap: 16px;
  align-items: baseline;
  max-width: 860px;
  margin: 0 auto;
}

.paper-tldr-label {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.paper-tldr p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── Main content ───────────────────────────────────────────── */
.paper-main {
  max-width: 860px;
  margin: 0 auto;
  padding-top: 72px;
  padding-bottom: 80px;
}

/* ── Section titles ─────────────────────────────────────────── */
.paper-section {
  margin-bottom: 72px;
  scroll-margin-top: 88px;
}

.paper-section-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.paper-subsection {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 32px 0 14px;
  letter-spacing: -0.005em;
}

/* ── Abstract ───────────────────────────────────────────────── */
.paper-abstract-body p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
}

.paper-abstract-body p:last-child { margin-bottom: 0; }

.paper-abstract-body strong { color: var(--text-primary); }

/* ── Teaser ─────────────────────────────────────────────────── */
.paper-teaser {
  margin-bottom: 80px;
}

/* ── Figures ────────────────────────────────────────────────── */
.paper-fig {
  margin: 28px 0;
}

.paper-fig-wide {
  margin-left: -20px;
  margin-right: -20px;
}

.paper-fig-placeholder {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
}

.paper-fig-wide .paper-fig-placeholder {
  min-height: 260px;
  border-radius: var(--radius-lg);
}

.paper-fig-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.paper-fig-placeholder p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 620px;
}

.paper-fig figcaption {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 10px;
  padding: 0 4px;
}

/* ── Key Findings Grid ──────────────────────────────────────── */
.paper-findings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.paper-finding-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 28px 24px;
  transition: border-color var(--transition), background var(--transition);
  position: relative;
}

.paper-finding-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.paper-finding-num {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
}

.paper-finding-card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.paper-finding-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── Methods blocks ─────────────────────────────────────────── */
.paper-method-block {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.paper-method-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.paper-method-block p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.paper-method-block p em { color: var(--text-primary); font-style: normal; }
.paper-method-block p strong { color: var(--text-primary); }

/* ── Inset / metrics ────────────────────────────────────────── */
.paper-inset {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 20px 0 24px;
}

.paper-inset h5 {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
}

.paper-inset h4 {
  font-family: var(--font-display);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.paper-metric-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.paper-metric-list li {
  display: grid;
  grid-template-columns: 160px 1fr;
  grid-template-rows: auto auto;
  column-gap: 16px;
}

.paper-metric-list li strong {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  grid-row: 1;
  grid-column: 1;
}

.paper-metric-list li span {
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--accent);
  grid-row: 1;
  grid-column: 2;
  line-height: 1.5;
}

.paper-metric-list li p {
  grid-row: 2;
  grid-column: 2;
  font-size: 0.9rem;
  margin: 4px 0 0;
  line-height: 1.55;
}

/* ── Criteria list ──────────────────────────────────────────── */
.paper-criteria-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0 20px;
  padding-left: 0;
}

.paper-criteria-list li {
  display: flex;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.paper-criteria-list li::before {
  content: '→';
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

.paper-criteria-list li strong { color: var(--text-primary); }

/* ── Results blocks ─────────────────────────────────────────── */
.paper-result-block {
  margin-bottom: 52px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--border);
}

.paper-result-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.paper-result-block p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.paper-result-block p strong { color: var(--text-primary); }
.paper-result-block p em { color: var(--text-primary); font-style: normal; }

/* ── Prose list ─────────────────────────────────────────────── */
.paper-prose-list {
  list-style: none;
  padding-left: 0;
  margin: 12px 0 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.paper-prose-list li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 20px;
  position: relative;
}

.paper-prose-list li::before {
  content: '·';
  position: absolute;
  left: 6px;
  color: var(--accent);
  font-weight: 700;
}

.paper-prose-list li strong { color: var(--text-primary); }
.paper-prose-list li em { color: var(--text-primary); font-style: normal; }

/* ── Discussion ─────────────────────────────────────────────── */
.paper-discussion-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.paper-discussion-cols p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.paper-discussion-cols p em { color: var(--text-primary); font-style: normal; }

.paper-discussion-cols ul {
  margin: 12px 0 20px;
}

/* ── Comparison table ───────────────────────────────────────── */
.paper-comparison-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 24px 0;
  font-size: 0.8rem;
}

.paper-comparison-header,
.paper-comparison-row {
  display: grid;
  grid-template-columns: 180px 1fr 1fr 1fr;
  gap: 0;
}

.paper-comparison-header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.paper-comparison-header span,
.paper-comparison-row span {
  padding: 10px 14px;
  line-height: 1.5;
}

.paper-comparison-header span {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.paper-comparison-row {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.paper-comparison-row:last-child {border-right: 1px solid var(--border)}

.paper-comparison-row span:first-child {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent);
  font-size: 0.75rem;
}

.paper-comparison-row span:not(:first-child) {
  color: var(--text-secondary);
}

.paper-comparison-row span {
  border-right: 1px solid var(--border);
}


/* ── Callout ────────────────────────────────────────────────── */
.paper-callout {
  border-left: 2px solid var(--accent);
  padding: 16px 20px;
  margin: 24px 0;
  background: var(--accent-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.paper-callout p {
  font-size: 0.92rem !important;
  color: var(--text-primary) !important;
  font-style: italic;
  line-height: 1.65 !important;
  margin-bottom: 0 !important;
  font-family: var(--font-display);
}

/* ── Conclusion ─────────────────────────────────────────────── */

.paper-conclusion-lead {  
  em {color: #6c8fff; font-style: normal;}
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}

.paper-conclusion-levels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.paper-conclusion-level {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: border-color var(--transition);
}

.paper-conclusion-level:hover {
  border-color: var(--border-hover);
}

.paper-level-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(108, 143, 255, 0.3);
  border-radius: 100px;
  padding: 2px 10px;
  margin-bottom: 12px;
}

.paper-conclusion-level p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

#conclusion > p:last-child {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ── Citation ───────────────────────────────────────────────── */
.paper-citation-block {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.paper-citation-block pre {
  padding: 28px 32px;
  overflow-x: auto;
  margin: 0;
}

.paper-citation-block code {
  font-family: 'Courier New', 'Menlo', monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.75;
  white-space: pre;
}

.paper-copy-btn {
  position: absolute;
  top: 14px;
  right: 16px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 5px 12px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

.paper-copy-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .paper-findings-grid {
    grid-template-columns: 1fr;
  }

  .paper-discussion-cols {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .paper-comparison-table {
    font-size: 0.75rem;
  }

  .paper-comparison-header,
  .paper-comparison-row {
    grid-template-columns: 90px 1fr 1fr;
  }

  .paper-conclusion-levels {
    grid-template-columns: 1fr;
  }

  .paper-fig-wide {
    margin-left: 0;
    margin-right: 0;
  }

  .paper-metric-list li {
    grid-template-columns: 1fr;
  }

  .paper-metric-list li strong { grid-row: 1; grid-column: 1; }
  .paper-metric-list li span   { grid-row: 2; grid-column: 1; }
  .paper-metric-list li p      { grid-row: 3; grid-column: 1; }
}

@media (max-width: 600px) {
  .paper-hero { padding: 100px 0 48px; }

  .paper-title {
    font-size: 1.6rem;
  }

  .paper-tldr .container {
    flex-direction: column;
    gap: 6px;
  }

  .paper-comparison-header,
  .paper-comparison-row {
    grid-template-columns: 80px 1fr 1fr;
  }

  .paper-comparison-header span,
  .paper-comparison-row span {
    padding: 8px 10px;
    font-size: 0.72rem;
  }
}