/* ===== Page header (top of index.html and nox.html) ===== */
.page-header { padding: calc(var(--space-lg) + 60px) var(--space-md) var(--space-lg); border-bottom: var(--border); }
.page-title { font-family: var(--serif); font-size: var(--text-display); font-weight: 400; letter-spacing: -0.02em; margin-bottom: var(--space-sm); }
.page-desc { color: var(--fg-muted); font-size: var(--text-base); line-height: 1.6; max-width: 620px; }

body.comfortable .page-header { padding: calc(var(--space-lg) + 80px) var(--space-md) calc(var(--space-lg) + 16px); }

/* ===== Papers list (index.html) ===== */
.paper-list { }
.paper-row {
  display: grid;
  grid-template-columns: 160px 1fr 80px;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: var(--border);
  color: var(--fg);
  text-decoration: none;
  transition: background 0.2s;
  align-items: start;
}
.paper-row:hover { background: var(--fg-ghost); }

.paper-meta { display: flex; flex-direction: column; gap: 6px; }
.paper-tag {
  display: inline-block;
  width: fit-content;
  font-size: var(--text-xs);
  padding: 4px 8px;
  border: var(--border-strong);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.paper-date {
  font-size: var(--text-xs);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.paper-body { display: flex; flex-direction: column; gap: 10px; }
.paper-title {
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1.25;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.paper-authors {
  font-size: var(--text-sm);
  color: var(--fg-muted);
}
.paper-abstract {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--fg);
  max-width: 640px;
}

.paper-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--fg-muted);
  transition: color 0.2s, transform 0.2s;
}
.paper-row:hover .paper-actions { color: var(--accent); }
.paper-row:hover .paper-action-arrow { transform: translateX(4px); }
.paper-action-arrow { transition: transform 0.2s; }

body.comfortable .paper-row { padding: calc(var(--space-md) + 4px) var(--space-md); }

/* ===== Repository row (index.html) ===== */
.repo-row {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: var(--border);
  align-items: start;
}
.repo-body .eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}
.repo-body .body-text {
  font-size: var(--text-base);
  line-height: 1.6;
}
.repo-links { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }
.repo-link {
  font-size: var(--text-sm);
  color: var(--fg);
  text-decoration: none;
  padding: 8px 12px;
  border: var(--border-strong);
  transition: background 0.2s, color 0.2s;
  min-width: 140px;
  text-align: center;
}
.repo-link:hover { background: var(--fg); color: var(--bg); }

/* ===== Paper detail page header (nox.html) ===== */
.paper-header {
  padding: calc(var(--space-lg) + 60px) var(--space-md) var(--space-lg);
  border-bottom: var(--border);
}
body.comfortable .paper-header { padding: calc(var(--space-lg) + 80px) var(--space-md) calc(var(--space-lg) + 16px); }

.paper-eyebrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  margin-bottom: var(--space-md);
}
.paper-breadcrumb { color: var(--fg-muted); text-decoration: none; transition: color 0.2s; }
.paper-breadcrumb:hover { color: var(--fg); }
.paper-breadcrumb-sep { color: var(--fg-faint); }

.paper-title-big {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  max-width: 880px;
}
.paper-byline {
  font-size: var(--text-lg);
  color: var(--fg);
  margin-bottom: 4px;
}
.paper-affiliation {
  font-size: var(--text-sm);
  color: var(--fg-muted);
  font-style: italic;
  margin-bottom: var(--space-xs);
}
.paper-date-big {
  font-size: var(--text-xs);
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.paper-cta { display: flex; gap: 10px; }
.paper-download-btn {
  display: inline-block;
  padding: 10px 18px;
  background: var(--fg);
  color: var(--bg);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: var(--border-strong);
  transition: opacity 0.2s;
}
.paper-download-btn:hover { opacity: 0.85; }
.paper-secondary-btn {
  display: inline-block;
  padding: 10px 18px;
  background: transparent;
  color: var(--fg);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: var(--border-strong);
  transition: background 0.2s, color 0.2s;
}
.paper-secondary-btn:hover { background: var(--fg); color: var(--bg); }

/* ===== Paper sections (body of nox.html) ===== */
.paper-section { padding: var(--space-md); border-bottom: var(--border); }
.paper-body-text {
  font-size: var(--text-base);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
  max-width: 720px;
}
.paper-body-text:last-child { margin-bottom: 0; }

/* ===== Contributions block ===== */
.paper-contribs { display: flex; flex-direction: column; gap: var(--space-md); }
.paper-contrib {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-md);
  align-items: start;
}
.paper-contrib-label {
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--accent);
  text-align: right;
  padding-top: 2px;
}
.paper-contrib-body { }
.paper-contrib-title {
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: 6px;
}
.paper-contrib-body p {
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--fg);
  max-width: 720px;
}

/* ===== Availability link cards ===== */
.paper-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.paper-link-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  border: var(--border-strong);
  color: var(--fg);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
  min-width: 0;
  overflow-wrap: anywhere;
}
.paper-link-card:hover { background: var(--fg-ghost); }
.paper-link-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  font-weight: 600;
}
.paper-link-title {
  font-family: var(--mono);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--accent);
}
.paper-link-desc {
  font-size: var(--text-sm);
  color: var(--fg-muted);
  line-height: 1.45;
}

/* ===== BibTeX block ===== */
.paper-bibtex { border: var(--border-strong); padding: 12px; background: var(--fg-ghost); }
.paper-bibtex-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  font-weight: 600;
  margin-bottom: 8px;
}
.paper-bibtex pre {
  font-family: var(--mono);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--fg);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ===== Pills (header nav) ===== */
.pill {
  display: inline-block;
  padding: 6px 12px;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
  border: var(--border-strong);
  transition: background 0.2s, color 0.2s;
}
.pill:hover { background: var(--fg); color: var(--bg); }

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .paper-row {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  .paper-actions { justify-content: flex-start; }
  .repo-row {
    grid-template-columns: 1fr;
  }
  .repo-links { align-items: flex-start; }
  .paper-contrib {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .paper-contrib-label { text-align: left; }
  .pill-desktop { display: none; }
}