/* ═══════════════════════════════════════════════════
   aihaber — Paper Single (Mockup A · 3-col Sticky)
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* ═══ ROOT ═══════════════════════════════════════════════ */
.hpA-paper-single {
  --pA-fg:           #0a0a0a;
  --pA-fg-mute:      #444;
  --pA-fg-soft:      #888;
  --pA-fg-faint:     #999;
  --pA-bg:           #ffffff;
  --pA-bg-soft:      #fafaf5;
  --pA-bg-card:      #fafaf5;
  --pA-line:         #ebeae5;
  --pA-line-soft:    #f0efea;
  --pA-line-strong:  #0a0a0a;

  font-family: var(--font-body, 'Inter', sans-serif);
  color: var(--pA-fg);
  background: var(--paper, #fff);
  padding: 36px 32px 48px;
}

[data-theme="dark"] .hpA-paper-single {
  --pA-fg:           #f5f5f0;
  --pA-fg-mute:      #b8b8b0;
  --pA-fg-soft:      #888;
  --pA-fg-faint:     #777;
  --pA-bg:           #1c1c1c;
  --pA-bg-soft:      #242424;
  --pA-bg-card:      #1f1f1f;
  --pA-line:         #2a2a2a;
  --pA-line-soft:    #1f1f1f;
  --pA-line-strong:  #f5f5f0;
}

.hpA-paper__layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 280px;
  gap: 32px;
  max-width: 1360px;
  margin: 0 auto;
  align-items: start;
}

/* ═══ SOL: TOC + PDF ═══════════════════════════════════ */
.hpA-paper__toc {
  position: sticky;
  top: 20px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.hpA-paper__toc-box {
  background: var(--pA-bg-soft);
  border: 1px solid var(--pA-line);
  padding: 16px;
}
.hpA-paper__toc-box h4 {
  font: 900 11px/1 var(--font-display, 'Plus Jakarta Sans');
  letter-spacing: 2px;
  margin: 0 0 14px;
  color: var(--pA-fg);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hpA-paper__toc-box h4::before {
  content: '';
  width: 4px;
  height: 13px;
  background: var(--c-acc-lime, #cdfa00);
}
.hpA-paper__toc-box ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pa-toc;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hpA-paper__toc-box ol li {
  counter-increment: pa-toc;
  display: flex;
  gap: 10px;
  padding: 7px 8px;
  font: 600 12px/1.4 var(--font-body);
  color: var(--pA-fg-mute);
  cursor: pointer;
  border-left: 2px solid transparent;
  align-items: flex-start;
}
.hpA-paper__toc-box ol li::before {
  content: counter(pa-toc);
  font: 800 10px/1.4 var(--font-mono, 'JetBrains Mono');
  color: var(--pA-fg-faint);
  flex-shrink: 0;
  width: 18px;
}
.hpA-paper__toc-box ol li.is-active {
  background: var(--pA-bg);
  border-left-color: var(--c-acc-lime, #cdfa00);
  color: var(--pA-fg);
  font-weight: 800;
}
.hpA-paper__toc-box ol li.is-active::before { color: var(--pA-fg); }
.hpA-paper__toc-box ol li:hover { color: var(--pA-fg); }

/* PDF Side panel */
.hpA-paper__pdf-side {
  background: #0a0a0a;
  color: #fff;
  padding: 18px;
}
.hpA-paper__pdf-side h4 {
  font: 900 11px/1 var(--font-display);
  letter-spacing: 2px;
  margin: 0 0 12px;
  color: var(--c-acc-lime, #cdfa00);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hpA-paper__pdf-side h4::before {
  content: '';
  width: 4px;
  height: 13px;
  background: var(--c-acc-lime, #cdfa00);
}

.hpA-paper__pdf-preview {
  height: 165px;
  margin-bottom: 14px;
  overflow: hidden;
}
.hpA-paper__pdf-page {
  background: #fff;
  border: 1px solid #d8d7d2;
  box-shadow: 0 4px 14px rgba(0,0,0,.06);
  padding: 14px 18px;
  font-family: 'Newsreader', Georgia, serif;
  color: #0a0a0a;
  font-size: 9px;
  line-height: 1.45;
  position: relative;
  overflow: hidden;
  transform: scale(.85);
  transform-origin: top left;
  width: 118%;
  height: 165px;
}
.hpA-paper__pdf-page::before {
  content: attr(data-page);
  position: absolute;
  top: 6px;
  right: 8px;
  font: 600 8px/1 var(--font-mono);
  color: #aaa;
  letter-spacing: .5px;
}
.hpA-paper__pdf-page .pt {
  font: 800 11px/1.2 'Newsreader', Georgia, serif;
  margin: 0 0 6px;
  color: #0a0a0a;
  text-wrap: balance;
}
.hpA-paper__pdf-page .pa {
  font: 500 7px/1.3 var(--font-body);
  color: #666;
  margin: 0 0 8px;
  letter-spacing: .3px;
}
.hpA-paper__pdf-page .ph2 {
  font: 800 8px/1 'Newsreader', Georgia, serif;
  color: #0a0a0a;
  margin: 6px 0 3px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.hpA-paper__pdf-page .pp {
  margin: 0 0 5px;
  color: #222;
  text-align: justify;
}
.hpA-paper__pdf-page .cols {
  column-count: 2;
  column-gap: 8px;
}
.hpA-paper__pdf-page .fig {
  margin: 6px 0;
  height: 36px;
  background: linear-gradient(180deg, var(--c-acc-lime, #cdfa00) 0%, #fafaf5 100%);
  position: relative;
}

.hpA-paper__pdf-info {
  font: 600 10px/1.7 var(--font-mono);
  color: #888;
  letter-spacing: .5px;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 14px;
}
.hpA-paper__pdf-info b { color: #fff; font-weight: 800; margin-right: 4px; }

.hpA-paper__pdf-dl {
  background: var(--c-acc-lime, #cdfa00);
  color: #0a0a0a;
  padding: 13px;
  font: 800 12px/1 var(--font-body);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  width: 100%;
  border: 0;
  text-align: center;
  text-decoration: none;
  transition: filter .15s;
}
.hpA-paper__pdf-dl:hover { filter: brightness(.92); }

.hpA-paper__pdf-alts {
  display: flex;
  gap: 5px;
  margin-top: 6px;
}
.hpA-paper__pdf-alts a {
  flex: 1;
  padding: 9px 6px;
  background: #1a1a1a;
  border: 1px solid #222;
  color: #bbb;
  font: 700 10px/1 var(--font-body);
  letter-spacing: .5px;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, color .15s;
}
.hpA-paper__pdf-alts a:hover {
  background: var(--c-acc-lime, #cdfa00);
  color: #0a0a0a;
}

/* ═══ ORTA: ARTICLE ═══════════════════════════════════════ */
.hpA-paper__article {
  min-width: 0;
  font-family: var(--font-body);
  color: var(--pA-fg);
}

.hpA-paper__meta-top {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font: 600 11px/1 var(--font-mono);
  color: var(--pA-fg-soft);
  margin-bottom: 18px;
  letter-spacing: .5px;
  text-transform: uppercase;
}
.hpA-paper__cat {
  background: var(--c-acc-lime, #cdfa00);
  color: #0a0a0a;
  padding: 6px 9px;
  font: 800 11px/1 var(--font-body);
  letter-spacing: 2px;
}
.hpA-paper__arx {
  color: var(--pA-fg);
  font-weight: 800;
  border: 1px solid var(--pA-fg);
  padding: 5px 8px;
}

.hpA-paper__title {
  font: 900 38px/1.15 var(--font-display, 'Plus Jakarta Sans');
  letter-spacing: -1.2px;
  margin: 0 0 14px;
  text-wrap: balance;
  color: var(--pA-fg);
}

.hpA-paper__authors {
  font: 600 14px/1.5 var(--font-body);
  color: var(--pA-fg-mute);
  margin: 0 0 6px;
}
.hpA-paper__authors b { color: var(--pA-fg); font-weight: 800; }
.hpA-paper__authors sup {
  font-size: 10px;
  color: var(--pA-fg-soft);
  vertical-align: super;
}

.hpA-paper__affil {
  font: 500 12px/1.5 var(--font-body);
  color: var(--pA-fg-soft);
  margin: 0 0 22px;
  font-style: italic;
}
.hpA-paper__affil sup { vertical-align: super; font-size: 10px; }

.hpA-paper__pub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font: 600 12px/1 var(--font-mono);
  color: var(--pA-fg-soft);
  margin-bottom: 24px;
  padding: 12px 0;
  border-top: 1px solid var(--pA-line);
  border-bottom: 1px solid var(--pA-line);
  letter-spacing: .5px;
  text-transform: uppercase;
}
.hpA-paper__pub-meta b { color: var(--pA-fg); font-weight: 800; margin-right: 5px; }

.hpA-paper__abstract {
  background: var(--pA-bg-soft);
  border: 1px solid var(--pA-line);
  padding: 22px 24px;
  margin-bottom: 32px;
}
.hpA-paper__abstract h4 {
  font: 900 11px/1 var(--font-display);
  letter-spacing: 2px;
  margin: 0 0 12px;
  color: var(--pA-fg);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hpA-paper__abstract h4::before {
  content: '';
  width: 4px;
  height: 13px;
  background: var(--c-acc-lime, #cdfa00);
}
.hpA-paper__abstract p {
  font: 400 16px/1.7 'Newsreader', Georgia, serif;
  color: var(--pA-fg);
  margin: 0;
  text-wrap: pretty;
}
.hpA-paper__abstract p b { color: var(--pA-fg); font-weight: 700; }

/* FINDINGS */
.hpA-paper__findings { margin-bottom: 32px; }
.hpA-paper__findings h3 {
  font: 900 12px/1 var(--font-display);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin: 0 0 16px;
  color: var(--pA-fg);
  display: flex;
  align-items: center;
  gap: 10px;
}
.hpA-paper__findings h3::before {
  content: '';
  width: 24px;
  height: 3px;
  background: var(--c-acc-lime, #cdfa00);
}
.hpA-paper__findings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.hpA-paper__finding {
  background: #0a0a0a;
  color: #fff;
  padding: 20px;
}
.hpA-paper__finding-n {
  font: 900 48px/1 var(--font-display);
  letter-spacing: -2px;
  color: var(--c-acc-lime, #cdfa00);
  margin-bottom: 8px;
}
.hpA-paper__finding h4 {
  font: 800 13px/1.3 var(--font-body);
  margin: 0 0 10px;
  letter-spacing: .3px;
  color: #fff;
}
.hpA-paper__finding p {
  font: 500 12px/1.55 var(--font-body);
  color: #bbb;
  margin: 0;
  text-wrap: pretty;
}

/* ARTICLE BODY */
.hpA-paper__article-body {
  font: 400 17px/1.75 'Newsreader', Georgia, serif;
  color: var(--pA-fg);
}
.hpA-paper__article-body h2 {
  font: 900 24px/1.2 var(--font-display);
  letter-spacing: -.6px;
  margin: 32px 0 12px;
  color: var(--pA-fg);
  display: flex;
  gap: 12px;
  align-items: baseline;
  scroll-margin-top: 20px;
}
.hpA-paper__article-body h2 .num,
.hpA-paper__article-body h2::before {
  content: counter(pa-h2);
  counter-increment: pa-h2;
  font: 800 13px/1 var(--font-mono);
  color: var(--c-acc-lime, #cdfa00);
  background: #0a0a0a;
  padding: 5px 7px;
  letter-spacing: .5px;
  flex-shrink: 0;
  align-self: center;
}
.hpA-paper__article-body { counter-reset: pa-h2; }
.hpA-paper__article-body h3 {
  font: 900 20px/1.25 var(--font-display);
  letter-spacing: -.4px;
  margin: 24px 0 10px;
  color: var(--pA-fg);
}
.hpA-paper__article-body p {
  margin: 0 0 18px;
  text-wrap: pretty;
}
.hpA-paper__article-body a {
  border-bottom: 1.5px solid var(--c-acc-lime, #cdfa00);
  color: var(--pA-fg);
  font-weight: 600;
  text-decoration: none;
}
.hpA-paper__article-body blockquote {
  margin: 22px 0;
  padding: 18px;
  background: var(--pA-bg-soft);
  border-left: 4px solid var(--c-acc-lime, #cdfa00);
  font: italic 600 17px/1.5 'Newsreader', Georgia, serif;
  color: var(--pA-fg);
}
.hpA-paper__article-body code {
  font: 500 13px/1.4 var(--font-mono);
  background: var(--pA-bg-soft);
  padding: 2px 6px;
  color: var(--pA-fg);
}
.hpA-paper__article-body pre {
  background: #0a0a0a;
  color: var(--c-acc-lime, #cdfa00);
  padding: 16px 20px;
  margin: 22px 0;
  font: 500 12px/1.6 var(--font-mono);
  overflow: auto;
}
.hpA-paper__article-body img,
.hpA-paper__article-body figure {
  max-width: 100%;
  margin: 22px 0;
}
.hpA-paper__article-body ul,
.hpA-paper__article-body ol {
  font-family: var(--font-body);
  font-size: 15px;
  margin: 0 0 18px;
  padding-left: 22px;
  line-height: 1.65;
}

/* BIBTEX BLOCK */
.hpA-paper__bibtex-block {
  margin: 36px 0 0;
  background: #0a0a0a;
  color: #fff;
  padding: 28px;
}
.hpA-paper__bibtex-block h3 {
  font: 900 12px/1 var(--font-display);
  letter-spacing: 3px;
  color: var(--c-acc-lime, #cdfa00);
  text-transform: uppercase;
  margin: 0 0 18px;
}
.hpA-paper__codeblock {
  position: relative;
  background: #000;
  border: 1px solid #222;
  padding: 18px 22px;
}
.hpA-paper__codeblock pre {
  font: 500 13px/1.65 var(--font-mono);
  color: var(--c-acc-lime, #cdfa00);
  white-space: pre-wrap;
  margin: 0;
}
.hpA-paper__copy {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--c-acc-lime, #cdfa00);
  color: #0a0a0a;
  padding: 7px 11px;
  font: 800 10px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  border: 0;
}

/* COMMENTS (mini) */
.hpA-paper__comments {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 2px solid var(--pA-line-strong);
}
.hpA-paper__comments h3,
.hpA-paper__comments .comments-title,
.hpA-paper__comments .comment-reply-title {
  font: 900 18px/1 var(--font-display);
  letter-spacing: -.4px;
  margin: 0 0 18px;
  color: var(--pA-fg);
}

/* ═══ SAĞ: SIDEBAR ═══════════════════════════════════════ */
.hpA-paper__aside {
  position: sticky;
  top: 20px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-family: var(--font-body);
  min-width: 0;
}

.hpA-paper__box {
  background: var(--pA-bg);
  border: 1px solid var(--pA-line);
  padding: 16px;
}
.hpA-paper__box h4 {
  font: 900 11px/1 var(--font-display);
  letter-spacing: 2px;
  margin: 0 0 14px;
  color: var(--pA-fg);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hpA-paper__box h4::before {
  content: '';
  width: 4px;
  height: 13px;
  background: var(--c-acc-lime, #cdfa00);
}

/* AUTHOR LIST */
.hpA-paper__author-row {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--pA-line);
}
.hpA-paper__author-row:last-child { border: 0; padding-bottom: 0; }
.hpA-paper__author-row:first-of-type { padding-top: 0; }
.hpA-paper__author-av {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0a0a0a, #444);
  color: var(--c-acc-lime, #cdfa00);
  display: flex;
  align-items: center;
  justify-content: center;
  font: 800 11px/1 var(--font-display);
  flex-shrink: 0;
}
.hpA-paper__author-b { flex: 1; min-width: 0; }
.hpA-paper__author-nm { font: 800 12px/1.3 var(--font-body); color: var(--pA-fg); }
.hpA-paper__author-af { font: 500 10px/1.3 var(--font-body); color: var(--pA-fg-soft); margin-top: 2px; }

/* CITE STATS */
.hpA-paper__cite-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}
.hpA-paper__cite-n {
  padding: 11px;
  background: var(--pA-bg-soft);
  border: 1px solid var(--pA-line);
}
.hpA-paper__cite-n b {
  font: 900 22px/1 var(--font-display);
  letter-spacing: -.7px;
  display: block;
  color: var(--pA-fg);
}
.hpA-paper__cite-n small {
  font: 600 9px/1 var(--font-mono);
  color: var(--pA-fg-soft);
  letter-spacing: .7px;
  text-transform: uppercase;
  display: block;
  margin-top: 5px;
}

.hpA-paper__bibtex-mini {
  font: 500 10px/1.5 var(--font-mono);
  background: #0a0a0a;
  color: var(--c-acc-lime, #cdfa00);
  padding: 10px;
  white-space: pre-wrap;
  overflow: hidden;
  margin-top: 10px;
}
.hpA-paper__bibtex-copy {
  display: block;
  text-align: center;
  background: #1a1a1a;
  color: #fff;
  padding: 6px;
  margin-top: 8px;
  font: 700 10px/1 var(--font-body);
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  border: 0;
  width: 100%;
}

/* RELATED */
.hpA-paper__related-row {
  display: block;
  padding: 8px 0;
  border-bottom: 1px solid var(--pA-line);
  text-decoration: none;
  color: inherit;
}
.hpA-paper__related-row:last-child { border: 0; padding-bottom: 0; }
.hpA-paper__related-row:first-of-type { padding-top: 0; }
.hpA-paper__related-cat {
  font: 700 9px/1 var(--font-body);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--pA-fg-soft);
  margin-bottom: 4px;
}
.hpA-paper__related-row h5 {
  font: 700 12px/1.3 var(--font-body);
  margin: 0 0 4px;
  letter-spacing: -.2px;
  color: var(--pA-fg);
}
.hpA-paper__related-meta {
  font: 500 9px/1 var(--font-mono);
  color: var(--pA-fg-faint);
}

/* ═══ RESPONSIVE ════════════════════════════════════════ */
@media (max-width: 1100px) {
  .hpA-paper__layout { grid-template-columns: 220px minmax(0, 1fr); }
  .hpA-paper__aside { display: none; }
}

@media (max-width: 900px) {
  .hpA-paper-single { padding: 24px 18px 36px; }
  .hpA-paper__layout { grid-template-columns: 1fr; gap: 18px; }
  .hpA-paper__toc {
    position: static;
    flex-direction: column;
    gap: 10px;
  }
  .hpA-paper__title { font-size: 28px; letter-spacing: -.8px; }
  .hpA-paper__pub-meta { gap: 10px; font-size: 11px; }
  .hpA-paper__findings-grid { grid-template-columns: 1fr; }
  .hpA-paper__article-body { font-size: 16px; }
}

@media (max-width: 560px) {
  .hpA-paper__title { font-size: 22px; line-height: 1.18; }
  .hpA-paper__cite-stats { grid-template-columns: 1fr 1fr; }
}