/* ═══════════════════════════════════════════════════════════════════════════
   PUBLICATIONS PAGE STYLES
   Article cards, expand/collapse, code blocks, tags, reading progress
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── Hero Icon ──────────────────────────────────────────────────────────── */
.pub-hero-icon {
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.5rem;
  margin-bottom: 0.25rem;
}

/* ─── Article Card ───────────────────────────────────────────────────────── */
.pub-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.pub-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  z-index: 1;
}

.pub-card:hover {
  border-color: var(--glass-border-hover);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.pub-card.expanded {
  border-color: rgba(139, 92, 246, 0.2);
  box-shadow: 0 20px 60px rgba(139, 92, 246, 0.08);
}

.pub-card.expanded::before {
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.3), transparent);
}

/* ─── Gradient Border on Hover (non-expanded) ────────────────────────────── */
.pub-card:not(.expanded):hover {
  border-color: transparent;
  background-clip: padding-box;
}

.pub-card:not(.expanded):hover::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius-lg) + 1px);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(6, 182, 212, 0.3), rgba(139, 92, 246, 0.1));
  z-index: -1;
}

/* ─── Reading Progress Bar ───────────────────────────────────────────────── */
.pub-card__progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.03);
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.pub-card.expanded .pub-card__progress {
  opacity: 1;
}

.pub-card__progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-purple);
  border-radius: 0 3px 3px 0;
  transition: width 0.15s linear;
}

/* ─── Card Header ────────────────────────────────────────────────────────── */
.pub-card__header {
  padding: 2rem 2rem 1.75rem;
}

.pub-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ─── Tags ───────────────────────────────────────────────────────────────── */
.pub-card__tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pub-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: 50px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pub-tag--web3 {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  color: var(--cyan);
}

.pub-tag--security {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--red);
}

.pub-tag--web {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--blue);
}

.pub-tag--infra {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--gold);
}

/* ─── Read Time ──────────────────────────────────────────────────────────── */
.pub-card__readtime {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.pub-card__readtime svg {
  opacity: 0.6;
}

/* ─── Card Title ─────────────────────────────────────────────────────────── */
.pub-card__title {
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  transition: color var(--transition-normal);
}

.pub-card:hover .pub-card__title {
  background: var(--gradient-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pub-card.expanded .pub-card__title {
  background: var(--gradient-purple);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Card Excerpt ───────────────────────────────────────────────────────── */
.pub-card__excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pub-card.expanded .pub-card__excerpt {
  display: none;
}

/* ─── Toggle Button ──────────────────────────────────────────────────────── */
.pub-card__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 50px;
  color: var(--purple-light);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.pub-card__toggle:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.35);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
}

.pub-card__toggle-icon {
  transition: transform var(--transition-normal);
}

.pub-card.expanded .pub-card__toggle-icon {
  transform: rotate(180deg);
}

/* ─── Card Body (Expandable) ─────────────────────────────────────────────── */
.pub-card__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.4s ease;
  opacity: 0;
}

.pub-card.expanded .pub-card__body {
  opacity: 1;
}

.pub-card__body-inner {
  padding: 0 2rem 2.5rem;
  border-top: 1px solid var(--glass-border);
}

/* ─── Article Typography ─────────────────────────────────────────────────── */
.pub-article {
  max-width: 750px;
}

.pub-article h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2.25rem;
  margin-bottom: 0.75rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--purple);
}

.pub-article h4:first-child {
  margin-top: 1.75rem;
}

.pub-article p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.pub-article strong {
  color: var(--text-primary);
  font-weight: 600;
}

.pub-article em {
  color: var(--purple-light);
  font-style: italic;
}

.pub-article code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(139, 92, 246, 0.1);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  color: var(--purple-light);
}

.pub-article ul,
.pub-article ol {
  margin: 0.75rem 0 1.25rem 1.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.pub-article li {
  margin-bottom: 0.4rem;
}

.pub-article li strong {
  color: var(--text-primary);
}

.pub-article li code {
  font-size: 0.76rem;
}

/* ─── Code Blocks inside Articles ────────────────────────────────────────── */
.pub-article .code-block {
  margin: 1.5rem 0;
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.pub-article .code-block__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.65rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--glass-border);
}

.pub-article .code-block__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.pub-article .code-block__dot:nth-child(1) { background: var(--red); }
.pub-article .code-block__dot:nth-child(2) { background: var(--gold); }
.pub-article .code-block__dot:nth-child(3) { background: var(--green); }

.pub-article .code-block__filename {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.pub-article .code-block__body {
  padding: 1.1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.85;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.pub-article .code-block__body .line {
  white-space: pre;
}

.pub-article .code-block__body .line-num {
  color: var(--text-muted);
  user-select: none;
  margin-right: 1.25rem;
  opacity: 0.4;
  display: inline-block;
  min-width: 2ch;
  text-align: right;
}

.pub-article .code-block__body .keyword { color: var(--purple-light); }
.pub-article .code-block__body .string { color: var(--green-light); }
.pub-article .code-block__body .comment { color: var(--text-muted); font-style: italic; }
.pub-article .code-block__body .func { color: var(--cyan); }
.pub-article .code-block__body .type { color: var(--gold); }

/* ─── Comparison Table ───────────────────────────────────────────────────── */
.pub-comparison-table {
  margin: 1.5rem 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.pub-comparison-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.pub-comparison-table thead {
  background: rgba(255, 255, 255, 0.03);
}

.pub-comparison-table th {
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-align: left;
  border-bottom: 1px solid var(--glass-border);
}

.pub-comparison-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  line-height: 1.5;
}

.pub-comparison-table tbody tr {
  transition: background var(--transition-fast);
}

.pub-comparison-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.pub-comparison-table td:first-child {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

/* ─── Scroll Reveal Animation (article cards) ────────────────────────────── */
.pub-card.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.pub-card.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for multiple cards */
.pub-card.reveal:nth-child(2) {
  transition-delay: 0.1s;
}

.pub-card.reveal:nth-child(3) {
  transition-delay: 0.2s;
}

/* ─── Light Theme Overrides ──────────────────────────────────────────────── */
[data-theme="light"] .pub-card {
  background: rgba(255, 255, 255, 0.6);
  border-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .pub-card:hover {
  border-color: rgba(0, 0, 0, 0.12);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .pub-card.expanded {
  border-color: rgba(139, 92, 246, 0.2);
  box-shadow: 0 20px 60px rgba(139, 92, 246, 0.06);
}

[data-theme="light"] .pub-card::before {
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.04), transparent);
}

[data-theme="light"] .pub-card.expanded::before {
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.2), transparent);
}

[data-theme="light"] .pub-card:not(.expanded):hover::after {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(6, 182, 212, 0.2), rgba(139, 92, 246, 0.05));
}

[data-theme="light"] .pub-article .code-block {
  background: #f8fafc;
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .pub-article .code-block__header {
  background: rgba(0, 0, 0, 0.02);
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .pub-comparison-table thead {
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .pub-comparison-table th {
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .pub-comparison-table td {
  border-bottom-color: rgba(0, 0, 0, 0.04);
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .pub-card__header {
    padding: 1.5rem 1.25rem 1.25rem;
  }

  .pub-card__body-inner {
    padding: 0 1.25rem 2rem;
  }

  .pub-card__title {
    font-size: 1.15rem;
  }

  .pub-card__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .pub-article h4 {
    font-size: 1.05rem;
  }

  .pub-article .code-block__body {
    font-size: 0.68rem;
    padding: 0.85rem 1rem;
    line-height: 1.7;
  }

  .pub-comparison-table {
    margin-left: -1.25rem;
    margin-right: -1.25rem;
    padding: 0 1.25rem;
  }

  .pub-comparison-table th,
  .pub-comparison-table td {
    padding: 0.55rem 0.65rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 480px) {
  .pub-card__header {
    padding: 1.25rem 1rem 1rem;
  }

  .pub-card__body-inner {
    padding: 0 1rem 1.5rem;
  }

  .pub-card__title {
    font-size: 1.05rem;
  }

  .pub-card__excerpt {
    font-size: 0.82rem;
    -webkit-line-clamp: 2;
  }

  .pub-card__toggle {
    width: 100%;
    justify-content: center;
  }

  .pub-article p,
  .pub-article ul,
  .pub-article ol {
    font-size: 0.82rem;
  }

  .pub-article .code-block__body {
    font-size: 0.62rem;
    line-height: 1.6;
  }

  .pub-article .code-block__body .line-num {
    margin-right: 0.75rem;
  }
}