/* ============================================================
   Publications page stylesheet
   ============================================================ */

/* ---- Page hero ---- */
.pub-hero {
  position: relative;
  min-height: 340px;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.pub-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/publications_books.png');
  background-size: cover;
  background-position: left center;
  opacity: 0.95;
}

.pub-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(8,12,26,0.15) 0%,
    rgba(8,12,26,0.55) 38%,
    rgba(8,12,26,0.88) 58%,
    rgba(8,12,26,0.96) 100%
  );
}

.pub-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 6rem 2rem 3rem;
}

.pub-header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 2rem;
  /* shift content to the right so books are visible on the left */
  padding-left: 40%;
}

.pub-header-text {
  flex: 1;
  min-width: 260px;
}

.pub-header-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.pub-header-text h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 0.6rem;
}

.pub-header-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 560px;
  margin: 0;
}

/* Citation metrics */
.pub-metrics {
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-shrink: 0;
}

.pub-metric {
  text-align: center;
}

.pub-metric-value {
  display: block;
  font-family: var(--heading-font);
  font-size: 2rem;
  color: var(--amber);
  line-height: 1;
}

.pub-metric-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-top: 0.2em;
}

/* External profile links */
.pub-header-links {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  align-items: center;
  width: 100%;
}

.pub-ext-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.4em 0.9em;
  border-radius: 100px;
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.pub-ext-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* ---- Main content ---- */
.pub-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

/* ---- Section ---- */
.pub-section {
  margin-bottom: 3.5rem;
}

.pub-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.6rem;
  margin-bottom: 2rem;
}

/* ---- Year groups ---- */
.pub-year-group {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 0 1.5rem;
  margin-bottom: 1.5rem;
}

.pub-year-label {
  font-family: var(--heading-font);
  font-size: 1.05rem;
  color: var(--text-dim);
  padding-top: 1.1rem;
  text-align: right;
  border-right: 2px solid var(--border);
  padding-right: 1rem;
  flex-shrink: 0;
}

.pub-year-items {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

/* ---- Publication card ---- */
.pub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  transition: border-color 0.2s, background 0.2s;
}

.pub-card:hover {
  border-color: var(--border-light);
  background: var(--bg-card-hover);
}

.pub-card--highlight {
  border-left: 3px solid var(--accent);
}

.pub-card--talk {
  border-left: 3px solid var(--amber);
}

/* Card meta row */
.pub-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.pub-journal {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  font-style: italic;
}

.pub-vol {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* Topic tags */
.pub-tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15em 0.6em;
  border-radius: 100px;
  border: 1px solid;
}

.pub-tag--catalysis { color: var(--green);  background: rgba(62,207,142,0.08); border-color: rgba(62,207,142,0.25); }
.pub-tag--surface   { color: var(--orange); background: rgba(240,112,64,0.08); border-color: rgba(240,112,64,0.25); }
.pub-tag--ml        { color: var(--purple); background: rgba(168,126,255,0.08); border-color: rgba(168,126,255,0.25); }
.pub-tag--nano      { color: var(--teal);   background: rgba(45,212,196,0.08); border-color: rgba(45,212,196,0.25); }
.pub-tag--stat      { color: var(--teal);   background: rgba(45,212,196,0.08); border-color: rgba(45,212,196,0.25); }
.pub-tag--theory    { color: var(--amber);  background: var(--amber-glow);     border-color: rgba(232,184,75,0.3); }

/* Title */
.pub-title {
  font-family: var(--body-font);
  font-size: 0.97rem;
  font-weight: 500;
  color: #e8edf8;
  margin-bottom: 0.3rem;
  line-height: 1.45;
}

.pub-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}
.pub-title a:hover { color: var(--accent); }

/* Authors */
.pub-authors {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin: 0 0 0.6rem;
  line-height: 1.4;
}
.pub-authors strong {
  color: var(--text-muted);
  font-weight: 600;
}

/* Footer row */
.pub-card-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.pub-doi {
  font-size: 0.75rem;
  font-family: var(--mono-font);
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.pub-doi:hover { color: var(--accent); }

.pub-cited {
  font-size: 0.73rem;
  color: var(--amber);
  background: var(--amber-glow);
  border: 1px solid rgba(232,184,75,0.2);
  padding: 0.15em 0.6em;
  border-radius: 100px;
  margin-left: auto;
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .pub-year-group {
    grid-template-columns: 44px 1fr;
    gap: 0 0.8rem;
  }
  .pub-year-label {
    font-size: 0.85rem;
    padding-right: 0.6rem;
  }
  .pub-metrics { gap: 1.2rem; }
  .pub-metric-value { font-size: 1.5rem; }
}