/* ============================================================
   publications.css — Publications page styles
   Extends style.css (base tokens, navbar, footer already defined)
   ============================================================ */

/* ─── Page shell ─────────────────────────────────────────── */
.pub-page {
  margin-top: var(--nav-h);
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 8vw, 8rem);
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Page header ────────────────────────────────────────── */
.pub-header {
  margin-bottom: clamp(3rem, 7vw, 5rem);
  animation: fadeUp 0.7s ease both;
}

.pub-header__heading {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

.pub-header__intro {
  font-size: 0.97rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink-muted);
  max-width: 540px;
}

/* ─── Publication list ───────────────────────────────────── */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ─── Single card ────────────────────────────────────────── */
.pub-card {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 0 2rem;
  padding: clamp(2rem, 4vw, 3rem) 0;
  border-top: 1px solid var(--cream-dark);
  position: relative;
}

.pub-card:last-child {
  border-bottom: 1px solid var(--cream-dark);
}

/* Left column — index number + year */
.pub-card__left {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: 4px;
  gap: 0.3rem;
  flex-shrink: 0;
}

.pub-card__num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 300;
  line-height: 1;
  color: var(--cream-dark);
  -webkit-text-stroke: 1px rgba(122, 158, 126, 0.3);
  user-select: none;
  letter-spacing: -0.02em;
}

.pub-card__year {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

/* Right column — all content */
.pub-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Status row */
.pub-card__status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.1rem;
}

.pub-status {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 0.22rem 0.7rem;
  border-radius: 20px;
  white-space: nowrap;
}

.pub-status em { font-style: italic; font-weight: 400; }

.pub-status--published {
  background: rgba(77, 122, 82, 0.1);
  color: var(--accent);
  border: 1px solid rgba(77, 122, 82, 0.25);
}

.pub-status--review {
  background: rgba(180, 140, 60, 0.1);
  color: #8a6820;
  border: 1px solid rgba(180, 140, 60, 0.25);
}

.pub-status--prep {
  background: var(--cream-dark);
  color: var(--ink-faint);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* Conference/presentation chips inside status */
.status-link {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: currentColor;
  opacity: 0.75;
  transition: opacity var(--transition);
}
.status-link:hover { opacity: 1; }

/* Title */
.pub-card__title {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

/* Authors */
.pub-card__authors {
  font-size: 0.85rem;
  font-weight: 300;
  font-style: italic;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* Abstract area */
.pub-card__abstract-wrap {
  position: relative;
}

.pub-card__abstract {
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.85;
  color: var(--ink-muted);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.5s ease, opacity 0.4s ease;
  margin-bottom: 0;
}

.pub-card__abstract.expanded {
  max-height: 800px;
  opacity: 1;
  margin-bottom: 0.6rem;
}

.pub-abstract-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--accent);
  padding: 0;
  transition: color var(--transition);
}

.pub-abstract-toggle:hover { color: var(--sage-dark); }

.pub-abstract-toggle svg {
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.pub-abstract-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

/* Links row */
.pub-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.4rem;
}

.pub-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
  text-decoration: none;
}

.pub-link:hover { transform: translateY(-1px); }

/* Journal/DOI links */
.pub-link--journal {
  background: rgba(77, 122, 82, 0.1);
  color: var(--accent);
  border-color: rgba(77, 122, 82, 0.28);
}
.pub-link--journal:hover {
  background: var(--accent);
  color: var(--white);
}

/* arXiv */
.pub-link--arxiv {
  background: rgba(176, 36, 42, 0.08);
  color: #b0242a;
  border-color: rgba(176, 36, 42, 0.25);
}
.pub-link--arxiv:hover {
  background: #b0242a;
  color: var(--white);
}

/* CDS */
.pub-link--cds {
  background: rgba(0, 100, 160, 0.08);
  color: #00538a;
  border-color: rgba(0, 100, 160, 0.22);
}
.pub-link--cds:hover {
  background: #00538a;
  color: var(--white);
}

/* INSPIRE */
.pub-link--inspire {
  background: rgba(100, 50, 160, 0.08);
  color: #5e2d9e;
  border-color: rgba(100, 50, 160, 0.22);
}
.pub-link--inspire:hover {
  background: #5e2d9e;
  color: var(--white);
}

/* Conference */
.pub-link--conf {
  background: rgba(200, 100, 30, 0.08);
  color: #b05a10;
  border-color: rgba(200, 100, 30, 0.22);
}
.pub-link--conf:hover {
  background: #b05a10;
  color: var(--white);
}

/* PDF */
.pub-link--pdf {
  background: var(--cream-dark);
  color: var(--ink-muted);
  border-color: rgba(0,0,0,0.1);
}
.pub-link--pdf:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

/* BibTeX */
.pub-link--bibtex {
  background: none;
  color: var(--ink-faint);
  border-color: rgba(0,0,0,0.15);
}
.pub-link--bibtex:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

/* ─── Scroll reveal (shared pattern) ────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── BibTeX Modal ───────────────────────────────────────── */
.bibtex-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(28, 30, 27, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.bibtex-modal.open {
  display: flex;
}

.bibtex-modal__inner {
  background: var(--cream);
  border: 1px solid rgba(122, 158, 126, 0.2);
  border-radius: 8px;
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,0.18);
  display: flex;
  flex-direction: column;
  gap: 0;
}

.bibtex-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 1.75rem 1rem;
  border-bottom: 1px solid var(--cream-dark);
}

.bibtex-modal__pub-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
}

.bibtex-modal__close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-faint);
  flex-shrink: 0;
  padding: 2px;
  transition: color var(--transition);
  line-height: 1;
}
.bibtex-modal__close:hover { color: var(--ink); }

.bibtex-modal__body {
  padding: 1.25rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.bibtex-code {
  background: var(--cream-dark);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius);
  padding: 1.25rem;
  font-family: 'Courier New', 'Lucida Console', monospace;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--ink-muted);
  white-space: pre-wrap;
  overflow-x: auto;
  max-height: 320px;
  overflow-y: auto;
}

.bibtex-modal__actions {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
}

.bibtex-btn {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.bibtex-btn--copy {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.bibtex-btn--copy:hover { background: var(--sage-dark); border-color: var(--sage-dark); }
.bibtex-btn--copy.copied { background: var(--sage-dark); }

.bibtex-btn--close {
  background: none;
  color: var(--ink-muted);
  border-color: rgba(0,0,0,0.15);
}
.bibtex-btn--close:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .pub-page {
    padding: 2rem 1.2rem;
  }

  .pub-card {
    grid-template-columns: 38px 1fr;
    gap: 0 1rem;
  }

  .pub-card__num {
    font-size: 1.6rem;
  }

  .pub-card__links {
    gap: 0.35rem;
  }

  .bibtex-modal__header,
  .bibtex-modal__body {
    padding-left: 1.2rem;
    padding-right: 1.2rem;
  }
}