/* =====================================================================
   My Library — your saved learning materials
   Sections (top → bottom):
     1. Header: title + tagline + browse CTA
     2. Tab strip: All / Replays / Notes / Bookmarks / Articles
     3. Library grid: cards with kind pill, title, sub, timestamp
   ==================================================================== */

.library {
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ---- Header ------------------------------------------------------- */

.library__head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-5);
  align-items: end;
}

.library__head-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.library__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-subtle);
  text-transform: uppercase;
}

.library__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-display);
  color: var(--color-text);
  line-height: var(--leading-tight);
}

.library__tagline {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.library__browse-btn {
  align-self: end;
}

/* ---- Tab strip ---------------------------------------------------- */

.library__tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.library__tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-pill) var(--radius-pill) 0 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  transition:
    color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.library__tab:hover {
  color: var(--color-text);
  background: var(--color-bg-raised);
}

.library__tab.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.library__tab-label {
  white-space: nowrap;
}

.library__tab-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  background: var(--color-bg-overlay);
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  min-width: 18px;
  text-align: center;
}

.library__tab.is-active .library__tab-count {
  color: var(--color-accent);
  background: var(--color-bg-overlay);
}

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

.library__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-3);
}

.library__grid--empty {
  display: block;
}

/* ---- Library card ------------------------------------------------- */

.library-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  transition:
    transform var(--duration-medium) var(--ease-out),
    border-color var(--duration-medium) var(--ease-out),
    box-shadow var(--duration-medium) var(--ease-out);
  min-height: 160px;
}

.library-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: var(--space-3);
  bottom: var(--space-3);
  width: 2px;
  border-radius: 2px;
  opacity: 0.5;
  background: var(--color-border-strong);
}

.library-card--terran::before  { background: var(--color-race-terran); }
.library-card--protoss::before { background: var(--color-race-protoss); }
.library-card--zerg::before    { background: var(--color-race-zerg); }

.library-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.library-card--terran:hover  { border-color: rgba(86, 194, 255, 0.4); }
.library-card--protoss:hover { border-color: rgba(247, 201, 72, 0.4); }
.library-card--zerg:hover    { border-color: rgba(167, 139, 250, 0.4); }

.library-card__link {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  text-decoration: none;
  color: inherit;
  flex: 1;
}

.library-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.library-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-snug);
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.library-card__sub {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.library-card__progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: auto;
}

.library-card__progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.library-card__progress-fill {
  height: 100%;
  background: var(--color-accent);
}

.library-card--terran  .library-card__progress-fill { background: var(--color-race-terran); }
.library-card--protoss .library-card__progress-fill { background: var(--color-race-protoss); }
.library-card--zerg    .library-card__progress-fill { background: var(--color-race-zerg); }

.library-card__progress-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}

.library-card__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  gap: var(--space-2);
}

.library-card__stamp {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}

.library-card__cta {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
}

.library-card__due-badge {
  flex-shrink: 0;
}

/* ---- Kind pill ---------------------------------------------------- */

.lib-kind {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px 8px 2px 6px;
  border: 1px solid var(--color-border-strong);
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-wider);
  font-weight: var(--weight-semibold);
}

.lib-kind__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lib-kind__label {
  line-height: 1;
}

.lib-kind--race-terran {
  color: var(--color-race-terran);
  border-color: rgba(86, 194, 255, 0.4);
  background: rgba(86, 194, 255, 0.08);
}
.lib-kind--race-protoss {
  color: var(--color-race-protoss);
  border-color: rgba(247, 201, 72, 0.4);
  background: rgba(247, 201, 72, 0.08);
}
.lib-kind--race-zerg {
  color: var(--color-race-zerg);
  border-color: rgba(167, 139, 250, 0.4);
  background: rgba(167, 139, 250, 0.08);
}

/* Default per-kind tint when no race is set */
.lib-kind--course   { color: var(--color-accent); }
.lib-kind--replay   { color: var(--color-info); }
.lib-kind--note     { color: var(--color-warning); }
.lib-kind--bookmark { color: var(--color-success); }
.lib-kind--article  { color: var(--color-brand-2); }

/* ---- Responsive --------------------------------------------------- */

@media (max-width: 900px) {
  .library__head {
    grid-template-columns: 1fr;
  }
  .library__browse-btn {
    align-self: start;
  }
}

@media (max-width: 600px) {
  .library {
    padding: var(--space-3);
    gap: var(--space-4);
  }
  .library__grid {
    grid-template-columns: 1fr;
  }
  .library__tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .library__tabs::-webkit-scrollbar { display: none; }
  .library__tab {
    flex-shrink: 0;
  }
}