/* Knowledge list styles */

/* Filter bar */
.knowledge-filter {
  margin: 0 0 calc(var(--gap) * 1.5) 0;
  display: flex;
  align-items: center;
  gap: var(--gap);
  font-size: var(--font-small);
}

.knowledge-filter label {
  color: var(--gray-text);
  font-weight: 500;
}

.knowledge-filter select {
  padding: 6px 12px;
  border: var(--border) solid var(--gray-line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: inherit;
  font-family: inherit;
  cursor: pointer;
  min-width: 160px;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

.knowledge-filter select:hover {
  border-color: var(--gray-text);
}

.knowledge-filter select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Category badge */
.knowledge-category {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  border-radius: 20px;
  font-size: calc(var(--font-small) * 0.9);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}

body.dark .knowledge-category {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
}

/* Knowledge item card */
p.knowledge-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 18px;
  border-radius: var(--radius);
  border: var(--border) solid var(--gray-line);
  background: transparent;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
  cursor: var(--cursor-hand);
}

p.knowledge-item:hover {
  background: var(--gray-bg);
  border-color: var(--accent);
  transform: translateX(3px);
}

p.knowledge-item > a {
  flex: 1;
  font-weight: 500;
  color: var(--text);
  border: none;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

p.knowledge-item:hover > a {
  color: var(--accent);
}

p.knowledge-item.hidden {
  display: none !important;
}

@media (max-width: 480px) {
  p.knowledge-item {
    flex-wrap: wrap;
    padding: 10px 14px;
  }
  p.knowledge-item > a {
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
  }
  .knowledge-filter {
    flex-wrap: wrap;
  }
}

/* Year headers */
h1.year-header {
  transition: opacity 0.2s;
}

h1.year-header.hidden {
  display: none !important;
}