:root {
  --paper:    #f7f4ee;
  --paper2:   #f0ece2;
  --ink:      #1a1814;
  --ink2:     #3a3530;
  --ink3:     #6b6560;
  --rule:     #ccc8bc;
  --rule2:    #e0ddd5;
  --red:      #8b1a1a;
  --gold:     #7a6020;
  --serif:    'EB Garamond', Georgia, serif;
  --display:  'Cormorant Garamond', Georgia, serif;
  --mono:     'Inconsolata', monospace;
  --col-left: 260px;
  --col-right: 260px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  min-height: 100vh;
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 27px,
    rgba(180,170,150,0.08) 27px, rgba(180,170,150,0.08) 28px
  );
}

/* ── MASTHEAD ── */
.masthead {
  border-bottom: 3px double var(--ink);
  padding: 1.25rem 2.5rem 0.9rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: 1rem;
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 100;
  overflow: hidden;
}

.masthead-left {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink3);
  letter-spacing: 0.08em;
  line-height: 1.6;
}

.masthead-center { text-align: center; }

.masthead-title {
  font-family: var(--display);
  font-size: 1.7rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1;
}

.masthead-subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink3);
  margin-top: 0.2rem;
  letter-spacing: 0.05em;
}

.masthead-right {
  text-align: right;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink3);
  letter-spacing: 0.05em;
  line-height: 1.6;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.5rem;
}

.masthead-right-text {
  font-family: var(--serif);
  font-size: 0.78rem;
  color: var(--ink3);
}

.masthead-logo {
  width: 75px;
  height: 75px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  transform-origin: center;
}

.masthead-logo:hover {
  transform: scale(1.1) rotate(-3deg);
}

.masthead-rule {
  grid-column: 1 / -1;
  height: 1px;
  background: var(--ink);
  margin-top: 0.5rem;
}

/* ── PAGE LAYOUT ── */
.page {
  display: grid;
  grid-template-columns: var(--col-left) 1fr var(--col-right);
  min-height: calc(100vh - 90px);
  max-width: 1400px;
  margin: 0 auto;
}

/* ── LEFT COLUMN ── */
.col-left {
  border-right: 1px solid var(--rule);
  padding: 2rem 1.5rem 2rem 2rem;
  position: sticky;
  top: 90px;
  height: calc(100vh - 90px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.col-label {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink3);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.4rem;
  margin-bottom: 1rem;
}

/* ── YEAR GROUP STYLING ── */
.year-group {
  margin-bottom: 1rem;
}

.year-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--rule2);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  position: relative;
  padding-left: 1.2rem;
}

.year-header::before {
  content: '▼';
  position: absolute;
  left: 0;
  font-size: 0.7rem;
  color: var(--red);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
  transform: rotate(0deg);
}

.year-group.expanded .year-header::before {
  transform: rotate(-90deg);
}

.year-header:hover {
  background: rgba(180, 170, 150, 0.03);
}

.year-label {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  flex: 1;
}

.year-count {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--ink3);
  background: transparent;
  padding: 0.15rem 0.35rem;
  border-radius: 2px;
  border: 1px solid var(--rule2);
  letter-spacing: 0.05em;
}

.year-projects {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.year-projects.expanded {
  max-height: 999px;
}

.project-item {
  padding: 0.6rem 0 0.6rem 0.25rem;
  border-bottom: 1px solid var(--rule2);
  cursor: pointer;
  position: relative;
  transition: padding-left 0.2s;
  margin-left: 0.5rem;
}

.project-item::before {
  content: '§';
  position: absolute;
  left: -0.9rem;
  top: 0.65rem;
  font-family: var(--serif);
  color: var(--red);
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.project-item:hover,
.project-item.active { padding-left: 0.6rem; }

.project-item:hover::before,
.project-item.active::before { opacity: 1; }

.project-item-num {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--ink3);
}

.project-item-name {
  font-family: var(--serif);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--ink);
  margin-top: 0.1rem;
}

.project-item.active .project-item-name { color: var(--red); }

.project-item-date {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.75rem;
  color: var(--ink3);
  margin-top: 0.1rem;
}

/* ── MAIN COLUMN ── */
.col-main {
  border-right: 1px solid var(--rule);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.state-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 70vh;
  gap: 1.5rem;
  color: var(--ink3);
  text-align: center;
  padding: 2rem;
}

.state-placeholder .ornament { font-size: 3rem; color: var(--rule); line-height: 1; }
.state-placeholder p { font-family: var(--serif); font-style: italic; font-size: 1.05rem; }

.state-loading-msg {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 50vh;
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink3);
  font-size: 1rem;
}

.loading-dots::after {
  content: '';
  animation: dots 1.2s steps(4, end) infinite;
}

@keyframes dots {
  0%  { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* ── ARTICLE ── */
.article { padding: 2.5rem 3rem 4rem; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.article-header {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.article-label {
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 0.5rem;
}

.article-title {
  font-family: var(--display);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.5rem;
  font-family: var(--serif);
  font-size: 0.82rem;
  color: var(--ink3);
}

.btn-link {
  font-family: var(--serif);
  font-size: 0.82rem;
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px dotted var(--rule);
  transition: border-color 0.15s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  padding: 0;
  cursor: pointer;
}
.btn-link:hover { border-bottom-color: var(--red); }

.license-badge {
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  letter-spacing: 0.08em;
}

/* ── FIGURE / CAROUSEL ── */
.figure-block {
  margin: 2rem 0;
  border: 1px solid var(--rule);
  background: var(--paper2);
}

.figure-caption-top {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink3);
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--rule);
}

.carousel {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/7;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper2);
}

.carousel-slides {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
  min-width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.carousel-slide img { max-width: 100%; max-height: 100%; object-fit: contain; }

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(247, 244, 238, 0.9);
  border: 1px solid var(--rule);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.2rem;
  color: var(--ink2);
  transition: all 0.15s;
  z-index: 2;
}

.carousel-btn:hover { background: var(--paper); border-color: var(--ink3); }
.carousel-btn.prev { left: 0.5rem; }
.carousel-btn.next { right: 0.5rem; }

.figure-caption-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.75rem;
  border-top: 1px solid var(--rule);
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--ink3);
}

.carousel-counter {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-style: normal;
  color: var(--ink3);
}

/* ── ABSTRACT ── */
.abstract-block {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--ink);
  background: var(--paper2);
}

.abstract-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 0.5rem;
}

.abstract-text {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink2);
}

/* ── AUTHORS ── */
.authors-block {
  margin: 2rem 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

/* ── AUTHOR HOVER EFFECTS ── */
a.author-avatar {
  /* Assicura che l'animazione sia fluida */
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

a.author-avatar:hover {
  /* Solleva leggermente l'immagine e aggiunge un'ombra morbida */
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 4px 8px rgba(26, 24, 20, 0.15); /* Usa un'ombra basata sul tuo --ink */
  border-color: var(--red);
}

a.author-gh {
  /* Animazione fluida per il cambio colore */
  transition: color 0.2s ease;
}

a.author-gh:hover {
  /* Cambia il colore del testo usando il rosso del tuo tema */
  color: var(--red) !important;
}

.authors-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 0.75rem;
}

.authors-list { display: flex; flex-wrap: wrap; gap: 1rem; }
.author-card  { display: flex; align-items: center; gap: 0.6rem; }

.author-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  object-fit: cover;
  background: var(--paper2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  overflow: hidden;
  flex-shrink: 0;
}

.author-avatar img { width: 100%; height: 100%; object-fit: cover; }

.author-name { font-family: var(--serif); font-size: 0.88rem; font-weight: 500; color: var(--ink); }
.author-gh   { font-family: var(--mono);  font-size: 0.63rem; color: var(--ink3); }

/* ── DETAIL SECTIONS ── */
.sections-divider { border: none; border-top: 1px solid var(--rule); margin: 2rem 0; }

.detail-section { margin-bottom: 2.5rem; }

.detail-section-heading {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 0.75rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px dotted var(--rule);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.section-num { font-family: var(--mono); font-size: 0.62rem; color: var(--ink3); font-style: normal; }

.detail-content {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink2);
}

.detail-content p             { margin-bottom: 0.75rem; }
.detail-content p:last-child  { margin-bottom: 0; }

.detail-content code {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: var(--paper2);
  border: 1px solid var(--rule);
  padding: 0.05em 0.35em;
  color: var(--red);
}

.detail-content pre {
  background: var(--paper2);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--ink3);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0.75rem 0;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.6;
}

.detail-content pre code { background: none; border: none; padding: 0; color: var(--ink); }
.detail-content ul,
.detail-content ol          { padding-left: 1.5rem; margin: 0.5rem 0; }
.detail-content li          { margin-bottom: 0.3rem; }
.detail-content a           { color: var(--red); text-decoration: none; border-bottom: 1px dotted var(--rule); }
.detail-content a:hover     { border-bottom-color: var(--red); }
.detail-content strong      { font-weight: 600; }
.detail-content em          { font-style: italic; }

.article-footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 3px double var(--rule);
  font-family: var(--mono);
  font-size: 0.63rem;
  color: var(--ink3);
  letter-spacing: 0.05em;
  text-align: center;
}

/* ── RIGHT COLUMN ── */
.col-right {
  padding: 2rem 1.75rem 2rem 1.5rem;
  position: sticky;
  top: 90px;
  height: calc(100vh - 90px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}

.index-list { list-style: none; margin-top: 0.5rem; }
.index-list li { border-bottom: 1px dotted var(--rule2); }

.index-list li a {
  display: block;
  font-family: var(--serif);
  font-size: 0.82rem;
  color: var(--ink3);
  text-decoration: none;
  padding: 0.35rem 0;
  transition: color 0.15s, padding-left 0.15s;
  line-height: 1.4;
}

.index-list li a:hover          { color: var(--red); padding-left: 0.4rem; }
.index-list li[data-level="6"] a { padding-left: 0.75rem; font-size: 0.76rem; }

.index-num { font-family: var(--mono); font-size: 0.6rem; color: var(--rule); margin-right: 0.3rem; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .page { grid-template-columns: 1fr; }
  
  .col-left {
    position: static;
    height: auto;
    border: none;
    border-bottom: 1px solid var(--rule);
    padding: 1.5rem 1.5rem 1rem;
  }
  
  .col-right {
    position: static;
    height: auto;
    border: none;
    border-bottom: 1px solid var(--rule);
    order: 3;
  }
  
  .article { padding: 1.5rem 1.5rem 3rem; }
  .masthead { grid-template-columns: 1fr; text-align: center; }
  .masthead-left, .masthead-right { display: none; }
  
  /* Mobile year group styling - make them more compact */
  .year-header {
    padding: 0.8rem 0.75rem;
    border-bottom: 2px solid var(--rule);
    margin-bottom: 0.5rem;
  }
  
  .year-label {
    font-size: 1.05rem;
  }
  
  .year-projects {
    border-left: 2px solid var(--rule2);
    padding-left: 0.75rem;
    margin-bottom: 1rem;
  }
  
  .project-item {
    margin-left: 0;
    padding: 0.5rem 0 0.5rem 0.5rem;
  }
  
  .project-item::before {
    left: -0.6rem;
  }
}

::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--rule); }