/* ------------------------------------------------------- library page */

.lib-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 22px 60px;
}

.lib-search {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.lib-search input[type="search"] {
  flex: 1 1 auto;
  background: var(--card-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 16px;
  font: inherit;
  font-size: 15px;
}
.lib-search input[type="search"]:focus { border-color: var(--accent); outline: none; }

/* ----------------------------------------------------------- category tabs */

.lib-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.tab {
  background: var(--card-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
  font: inherit;
  font-size: 13.5px;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
}
.tab:hover { border-color: var(--accent); color: var(--text); }
.tab.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.tab .n { opacity: .7; font-size: 12px; margin-left: 5px; }

/* กลุ่มอยู่แถวบน หมวดย่อยของกลุ่มที่เลือกอยู่แถวล่าง */
.lib-tabs.groups { padding-bottom: 10px; margin-bottom: 0; }
.lib-tabs.subs {
  border-bottom: 1px solid var(--line);
  padding-top: 12px;
  margin-bottom: 16px;
}
.lib-tabs.subs .tab { font-size: 12.5px; padding: 5px 12px; }
.lib-tabs.hidden { display: none; }

/* ------------------------------------------------------------------ grid */

.lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.card-img {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color .12s, transform .12s;
  display: flex;
  flex-direction: column;
}
.card-img:hover { border-color: var(--accent); transform: translateY(-2px); }

.card-img .pic {
  height: 128px;
  background: #0b0d11 center/contain no-repeat;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.card-img .pic .hd {
  position: absolute; top: 6px; right: 6px;
  background: rgba(53,199,122,.18);
  border: 1px solid rgba(53,199,122,.5);
  color: var(--ok);
  border-radius: 4px; padding: 1px 5px;
  font-size: 10px; font-weight: 700;
}
.card-img .pic .dup {
  position: absolute; bottom: 6px; right: 6px;
  background: rgba(0,0,0,.6);
  border-radius: 4px; padding: 1px 6px;
  font-size: 10.5px; color: var(--muted);
}
.card-img .cap {
  padding: 7px 9px 8px;
  font-size: 12px;
  line-height: 1.35;
  word-break: break-word;
}
.card-img .cap .where { color: var(--muted); font-size: 10.5px; margin-top: 3px; }

.lib-more { text-align: center; margin-top: 22px; display: flex; justify-content: center; gap: 12px; align-items: center; }

.lib-empty { color: var(--muted); padding: 40px 0; text-align: center; grid-column: 1 / -1; }

/* --------------------------------------------------------------- viewer */

.viewer-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  width: min(900px, 100%);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
}
.viewer-img {
  flex: 1 1 auto;
  min-height: 220px;
  display: grid;
  place-items: center;
  background: #0b0d11;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: auto;
  padding: 14px;
}
.viewer-img img { max-width: 100%; max-height: 62vh; }
.viewer-foot { display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.viewer-foot .progress { word-break: break-all; }