@charset "UTF-8";
/* aio.niu.edu.tw custom components
   RPAGE: html font-size 62.5%, so 1rem = 10px
   Font sizes use rem; layout uses px */

:root {
  --aio-card-bg: #ffffff;
  --aio-text-main: #0f172a;
  --aio-text-muted: #64748b;
  --aio-accent: #2563eb;
  --aio-line: #e2e8f0;
  --aio-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.ai-media-section {
  max-width: 1000px;
  margin: 30px auto;
  padding: 0 16px;
}

.ai-media-section h2 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--aio-text-main);
  text-align: center;
  margin: 0 0 32px;
  position: relative;
}

.ai-media-section h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 4px;
  background-color: var(--aio-accent);
  border-radius: 2px;
}

.sort-controls {
  text-align: center;
  margin-bottom: 24px;
}

.sort-button {
  background-color: transparent;
  border: 1px solid var(--aio-accent);
  color: var(--aio-accent);
  padding: 8px 16px;
  margin: 0 6px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  font-weight: 500;
  font-size: 1.4rem;
}

.sort-button:hover,
.sort-button.active {
  background-color: var(--aio-accent);
  color: #fff;
}

.media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 640px) {
  .media-grid {
    grid-template-columns: 1fr;
  }
}

.media-card {
  display: flex;
  flex-direction: column;
  background-color: var(--aio-card-bg);
  border: 1px solid var(--aio-line);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--aio-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.media-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card-media {
  border-left: 4px solid #2563eb;
}

.card-school {
  border-left: 4px solid #cbd5e1;
}

.media-card .meta {
  flex: 1;
}

.source-tag {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.tag-media {
  background-color: #dbeafe;
  color: #1e40af;
}

.tag-school {
  background-color: #f1f5f9;
  color: #475569;
}

.media-card .title {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 12px;
}

.media-card .title a {
  color: var(--aio-text-main);
  text-decoration: none;
  display: block;
}

.media-card .title a:hover {
  color: var(--aio-accent);
  text-decoration: underline;
}

.media-card .info {
  margin: 0;
}

.source-name {
  display: block;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--aio-text-main);
}

.source-date {
  display: block;
  font-size: 1.2rem;
  color: var(--aio-text-muted);
  margin-top: 2px;
}