/**
 * Writings Page - 2026 Premium Design
 * Elegant, sophisticated presentation for academic writings
 * Dark theme with refined gold accents
 */

/* ===== DESIGN TOKENS ===== */
:root {
  --writings-bg: #0a0a0a;
  --writings-bg-elevated: #111111;
  --writings-bg-card: #161616;
  --writings-card-bg: rgba(22, 22, 22, 0.95);
  --writings-text-primary: #ffffff;
  --writings-text-secondary: rgba(255, 255, 255, 0.75);
  --writings-text-tertiary: rgba(255, 255, 255, 0.5);
  --writings-gold: #D4AF37;
  --writings-gold-light: #e8c54a;
  --writings-gold-dark: #B8941F;
  --writings-border: rgba(212, 175, 55, 0.15);
  --writings-border-hover: rgba(212, 175, 55, 0.4);
  --writings-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --writings-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
  --writings-glow: 0 0 40px rgba(212, 175, 55, 0.15);
}

/* ===== HERO SECTION ===== */
.writings-hero {
  background: linear-gradient(180deg, #0a0a0a 0%, #151515 50%, #0a0a0a 100%);
  color: #ffffff;
  padding: 10rem 0 7rem;
  margin-bottom: 0;
  position: relative;
  overflow: hidden;
}

.writings-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.writings-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--writings-gold), transparent);
  opacity: 0.3;
}

.writings-hero-content {
  max-width: 750px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* Titolo unificato - eredita da .page-title in base.css */
.writings-title {
  margin: 0 0 1.5rem 0;
  text-shadow: 0 0 40px rgba(212, 175, 55, 0.2);
}

/* Sottotitolo unificato - eredita da .page-claim in base.css */
.writings-subtitle {
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .writings-hero {
    padding: 6rem 0 4rem;
  }

  .writings-subtitle {
    padding: 0 1rem;
  }
}

/* ===== SECTION LAYOUT ===== */
.writings-section {
  padding: 5rem 0;
  background: var(--writings-bg);
  position: relative;
}

.writings-section--theses {
  background: var(--writings-bg-elevated);
  padding: 6rem 0;
}

.writings-section--articles {
  background: var(--writings-bg);
  padding: 5rem 0;
}

.section-header {
  max-width: 700px;
  margin: 0 auto 4rem;
  text-align: center;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 300;
  color: var(--writings-gold);
  margin: 0 0 1rem 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--writings-text-tertiary);
  margin: 0;
  line-height: 1.7;
  font-weight: 300;
}

/* ===== THESES GRID (Cards) ===== */
.writings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
  gap: 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .writings-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.writing-card {
  background: var(--writings-bg-card);
  border: 1px solid var(--writings-border);
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--writings-shadow);
  display: flex;
  flex-direction: row;
}

.writing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--writings-shadow-hover), var(--writings-glow);
  border-color: var(--writings-border-hover);
}

/* PDF Preview Thumbnail */
.writing-card-media {
  width: 200px;
  min-width: 200px;
  background: linear-gradient(135deg, #1a1a1a 0%, #0d0d0d 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-right: 1px solid var(--writings-border);
}

.writing-card-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.writing-card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.writing-card:hover .writing-card-media img {
  transform: scale(1.08);
}

/* PDF placeholder when no preview */
.writing-card-media .pdf-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--writings-gold);
  padding: 2rem;
  text-align: center;
  height: 100%;
  min-height: 200px;
  background: linear-gradient(135deg, #1a1a1a 0%, #0d0d0d 100%);
}

.writing-card-media .pdf-placeholder svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.6;
  stroke: var(--writings-gold);
}

.writing-card-media .pdf-placeholder .pdf-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 600;
  opacity: 0.8;
}

.writing-card-media .pdf-placeholder .pdf-year {
  font-size: 1.5rem;
  font-weight: 300;
  margin-top: 0.5rem;
  letter-spacing: 0.1em;
  opacity: 0.5;
}

.writing-card-content {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.writing-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.875rem;
}

.writing-type {
  display: inline-block;
  padding: 0.3rem 0.7rem;
  background: transparent;
  color: var(--writings-gold);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid var(--writings-gold);
  border-radius: 2px;
}

.writing-year {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--writings-text-tertiary);
  letter-spacing: 0.05em;
}

.writing-card-title {
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--writings-text-primary);
  margin: 0 0 0.5rem 0;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.writing-card-subtitle {
  font-size: 0.95rem;
  font-style: italic;
  color: var(--writings-text-secondary);
  margin: 0 0 1rem 0;
  line-height: 1.5;
  font-weight: 300;
}

.writing-card-institution,
.writing-card-supervisor {
  font-size: 0.85rem;
  color: var(--writings-text-tertiary);
  margin: 0.35rem 0;
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.writing-card-institution .icon {
  flex-shrink: 0;
  color: var(--writings-gold);
  opacity: 0.7;
}

.writing-card-supervisor em {
  font-style: normal;
  font-weight: 500;
  color: var(--writings-text-secondary);
}

.writing-card-abstract {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--writings-text-tertiary);
  margin: 1rem 0 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--writings-border);
  flex-grow: 1;
}

.writing-card-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--writings-border);
  flex-wrap: wrap;
}

.writing-card-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
}

.writing-card-actions .icon {
  width: 14px;
  height: 14px;
}

.file-size {
  font-size: 0.75rem;
  opacity: 0.6;
  margin-left: 0.25rem;
}

/* Responsive card layout */
@media (max-width: 600px) {
  .writing-card {
    flex-direction: column;
  }

  .writing-card-media {
    width: 100%;
    min-width: 100%;
    height: 180px;
    border-right: none;
    border-bottom: 1px solid var(--writings-border);
  }
}

/* ===== ARTICLES LIST (Compact) ===== */
.writings-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.writing-item {
  background: var(--writings-bg-card);
  border: 1px solid var(--writings-border);
  border-left: 3px solid var(--writings-gold);
  border-radius: 0 4px 4px 0;
  padding: 1.75rem 2rem;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.writing-item:hover {
  border-left-color: var(--writings-gold-light);
  box-shadow: var(--writings-shadow);
  background: rgba(26, 26, 26, 0.95);
}

.writing-item-header {
  margin-bottom: 0.75rem;
}

.writing-item-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.writing-type--article {
  color: #5BA3F5;
  border-color: #5BA3F5;
  background: transparent;
}

.writing-type--essay {
  color: #A78BFA;
  border-color: #A78BFA;
  background: transparent;
}

.writing-type--research {
  color: #F87171;
  border-color: #F87171;
  background: transparent;
}

.writing-item-title {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--writings-text-primary);
  margin: 0;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.writing-item-subtitle {
  font-size: 0.9rem;
  font-style: italic;
  color: var(--writings-text-secondary);
  margin: 0.4rem 0 0 0;
  font-weight: 300;
}

.writing-item-body {
  margin: 0.75rem 0;
}

.writing-item-context {
  font-size: 0.8rem;
  color: var(--writings-text-tertiary);
  margin: 0 0 0.75rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.writing-item-context .icon {
  flex-shrink: 0;
  color: var(--writings-gold);
  opacity: 0.6;
}

.writing-item-abstract {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--writings-text-tertiary);
  margin: 0;
}

.writing-item-actions {
  display: flex;
  gap: 1.25rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--writings-border);
  flex-wrap: wrap;
}

.writing-item-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
}

.icon-external {
  width: 11px;
  height: 11px;
  margin-left: 0.2rem;
  opacity: 0.7;
}

/* ===== EMPTY STATE ===== */
.writings-empty {
  padding: 8rem 0;
  background: var(--writings-bg-elevated);
  text-align: center;
}

.empty-state {
  max-width: 450px;
  margin: 0 auto;
}

.empty-icon {
  color: var(--writings-gold);
  margin-bottom: 2rem;
  opacity: 0.3;
}

.empty-title {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--writings-text-primary);
  margin: 0 0 1rem 0;
  letter-spacing: 0.03em;
}

.empty-message {
  font-size: 1rem;
  color: var(--writings-text-tertiary);
  margin: 0;
  line-height: 1.7;
  font-weight: 300;
}

/* ===== FOOTER ===== */
.writings-footer {
  padding: 4rem 0 5rem;
  background: var(--writings-bg);
  text-align: center;
  border-top: 1px solid var(--writings-border);
}

.icon-back {
  margin-right: 0.5rem;
  transition: transform 0.3s ease;
}

.writings-footer .btn:hover .icon-back {
  transform: translateX(-4px);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 3px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--writings-gold);
  color: #000;
}

.btn-primary:hover {
  background: var(--writings-gold-light);
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--writings-gold);
  border: 1px solid var(--writings-gold);
}

.btn-secondary:hover {
  background: var(--writings-gold);
  color: #000;
}

.btn-link {
  background: transparent;
  color: var(--writings-gold);
  padding: 0.4rem 0;
  font-weight: 500;
  position: relative;
}

.btn-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--writings-gold);
  transition: width 0.3s ease;
}

.btn-link:hover {
  color: var(--writings-gold-light);
}

.btn-link:hover::after {
  width: 100%;
}

/* Download button special styling */
.btn-download {
  background: transparent;
  color: var(--writings-text-primary);
  border: 1px solid var(--writings-border);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-download:hover {
  border-color: var(--writings-gold);
  color: var(--writings-gold);
  background: rgba(212, 175, 55, 0.05);
}

.btn-download .icon {
  transition: transform 0.3s ease;
}

.btn-download:hover .icon {
  transform: translateY(2px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .writings-section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .writing-card-content,
  .writing-item {
    padding: 1.5rem;
  }

  .writing-card-title {
    font-size: 1.25rem;
  }

  .writing-item-title {
    font-size: 1.15rem;
  }
}

/* ===== CONTAINER ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== PDF VIEWER MODAL (Modern) ===== */
.writings-pdf-viewer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  display: none;
  align-items: center;
  justify-content: center;
}

.writings-pdf-viewer.active {
  display: flex;
}

.writings-pdf-viewer-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.writings-pdf-viewer-container {
  position: relative;
  width: 90%;
  max-width: 1100px;
  height: 90%;
  max-height: 90vh;
  background: #1a1a1a;
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(212, 175, 55, 0.2);
}

.writings-pdf-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: #111;
  border-bottom: 1px solid var(--writings-border);
  gap: 1rem;
}

.writings-pdf-viewer-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--writings-text-primary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.writings-pdf-viewer-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.writings-pdf-viewer-download,
.writings-pdf-viewer-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--writings-border);
  border-radius: 8px;
  color: var(--writings-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.writings-pdf-viewer-download:hover {
  color: var(--writings-gold);
  border-color: var(--writings-gold);
  background: rgba(212, 175, 55, 0.1);
}

.writings-pdf-viewer-close:hover {
  color: #fff;
  border-color: #e74c3c;
  background: rgba(231, 76, 60, 0.15);
}

.writings-pdf-viewer-body {
  flex: 1;
  min-height: 0;
  background: #fff;
}

.writings-pdf-viewer-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Button to open viewer */
.btn-view-pdf {
  background: var(--writings-gold);
  color: #000;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.btn-view-pdf:hover {
  background: var(--writings-gold-light);
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
}

.btn-view-pdf .icon {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .writings-pdf-viewer-container {
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    border-radius: 0;
    border: none;
  }

  .writings-pdf-viewer-header {
    padding: 0.75rem 1rem;
    flex-shrink: 0;
  }

  .writings-pdf-viewer-title {
    font-size: 0.9rem;
  }

  .writings-pdf-viewer-body {
    flex: 1;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
  }

  .writings-pdf-viewer-iframe {
    width: 100%;
    height: 100%;
    min-height: 100%;
  }
}