*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f4f0;
  --text-primary: #1a1a18;
  --text-secondary: #5f5e5a;
  --text-tertiary: #888780;
  --border-tertiary: rgba(0,0,0,0.12);
  --border-secondary: rgba(0,0,0,0.22);
  --border-primary: rgba(0,0,0,0.35);
  --radius-md: 8px;
  --radius-lg: 12px;
  --card-hover-shadow: rgba(0,0,0,0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1e1e1c;
    --bg-secondary: #2a2a27;
    --text-primary: #f0ede6;
    --text-secondary: #a8a59e;
    --text-tertiary: #6e6c67;
    --border-tertiary: rgba(255,255,255,0.1);
    --border-secondary: rgba(255,255,255,0.18);
    --border-primary: rgba(255,255,255,0.3);
  }
  .cat-prompt .cat-pill { background: #3C3489 !important; color: #CECBF6 !important; }
  .cat-model  .cat-pill { background: #085041 !important; color: #9FE1CB !important; }
  .cat-agent  .cat-pill { background: #633806 !important; color: #FAC775 !important; }
  .cat-misc   .cat-pill { background: #712B13 !important; color: #F5C4B3 !important; }
  --card-hover-shadow: rgba(0,0,0,0.3);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 2rem 1rem;
}

.wrap { max-width: 900px; margin: 0 auto; }

.header { margin-bottom: 1.5rem; }
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.header h1 {
  font-family: 'Syne', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}
.header p { font-size: 14px; color: var(--text-secondary); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-toggle {
  display: flex;
  gap: 4px;
}
.header-btn {
  font-size: 11px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  border: 0.5px solid var(--border-secondary);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.header-btn:hover { background: var(--bg-secondary); }

.lang-btn.active {
  color: var(--text-primary);
  border-color: var(--border-primary);
  background: var(--bg-secondary);
}

.print-btn:hover { color: var(--text-primary); }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 1.5rem;
}
.filter-btn {
  font-size: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  border: 0.5px solid var(--border-secondary);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-btn:hover { background: var(--bg-secondary); }
.filter-btn.active {
  color: var(--text-primary);
  border-color: var(--border-primary);
  background: var(--bg-secondary);
}
.filter-btn .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}

.card {
  background: var(--bg-primary);
  border: 0.5px solid var(--border-tertiary);
  border-radius: var(--radius-lg);
  padding: 1rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.card:hover {
  border-color: var(--border-secondary);
  box-shadow: 0 4px 12px var(--card-hover-shadow);
  transform: translateY(-2px);
}
.card.expanded { border-color: var(--border-primary); }

.cat-pill {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.cat-pill .dot { width: 6px; height: 6px; border-radius: 50%; margin-right: 5px; }

.cat-prompt .cat-pill { background: #EEEDFE; color: #3C3489; }
.cat-model  .cat-pill { background: #E1F5EE; color: #085041; }
.cat-agent  .cat-pill { background: #FAEEDA; color: #633806; }
.cat-misc   .cat-pill { background: #FAECE7; color: #712B13; }

.cat-prompt .dot { background: #7F77DD; }
.cat-model  .dot { background: #1D9E75; }
.cat-agent  .dot { background: #BA7517; }
.cat-misc   .dot { background: #D85A30; }

.card-term {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 6px;
}
.card-short { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }

.card-detail {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.6;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 0.5px solid var(--border-tertiary);
  display: none;
}
.card.expanded .card-detail { display: block; }

.card-hint {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 8px;
  text-align: right;
}

@media print {
  .header-actions,
  .filters { display: none; }

  body { background: #fff; padding: 0; }

  .grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .card {
    break-inside: avoid;
    cursor: default;
    box-shadow: none;
    transform: none;
  }

  .card-detail { display: block; }
  .card-hint { display: none; }
}