/* ═══════════════════════════════════════════════════════════════════
   AURALIS · LIBRARY STYLES — chat.php 1:1
   ───────────────────────────────────────────────────────────────────
   Depends on: tokens.css + base.css (header, glass, aurora, icon-btn, app)
   Library-specific: search, category tabs, sound grid, mini player.
   ═══════════════════════════════════════════════════════════════════ */

/* ═══ LOADING / EMPTY STATES ═══ */
.lib-loading,
.lib-empty {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

/* ═══ SEARCH ROW (search + diary button) ═══ */
.lib-search-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.lib-diary-btn {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: var(--radius-icon);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--dur) var(--ease), transform var(--dur-fast) var(--ease);
}
[data-theme="light"] .lib-diary-btn,
:root:not([data-theme]) .lib-diary-btn {
  background: var(--surface);
  box-shadow: var(--shadow-card-sm);
}
[data-theme="dark"] .lib-diary-btn {
  background: hsl(220 25% 6% / 0.6);
  backdrop-filter: blur(8px);
}
.lib-diary-btn:hover,
.lib-diary-btn:focus-visible {
  color: var(--accent);
  outline: none;
}
.lib-diary-btn:active { transform: scale(var(--press)); }
.lib-diary-btn svg { width: 22px; height: 22px; }

/* ═══ SEARCH BAR ═══ */
.lib-search {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
}
[data-theme="light"] .lib-search,
:root:not([data-theme]) .lib-search {
  background: var(--surface);
  box-shadow: var(--shadow-pressed);
  border: none;
}
[data-theme="dark"] .lib-search {
  background: hsl(220 25% 6% / 0.6);
  backdrop-filter: blur(8px);
}
.lib-search-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--text-muted);
}
.lib-search-icon svg { width: 18px; height: 18px; }
.lib-search-input {
  flex: 1;
  min-width: 0;
  height: 44px;
  border: none;
  outline: none;
  background: transparent;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  font-family: inherit;
  letter-spacing: 0.005em;
}
.lib-search-input::placeholder { color: var(--text-faint); }
.lib-search-input::-webkit-search-cancel-button { display: none; }
.lib-search-clear {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border: none;
  border-radius: var(--radius-icon);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.lib-search-clear:hover {
  color: var(--text);
  background: hsl(var(--hue1) 20% 35% / 0.1);
}
.lib-search-clear svg { width: 16px; height: 16px; }

/* ═══ CATEGORY TABS (horizontal scroll) ═══ */
.lib-cats {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 2px 0 12px;
  margin: 0 -12px 14px;
  padding-left: 12px;
  padding-right: 12px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.lib-cats::-webkit-scrollbar { display: none; }
.lib-cat-tab {
  flex-shrink: 0;
  min-height: 36px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}
[data-theme="light"] .lib-cat-tab,
:root:not([data-theme]) .lib-cat-tab {
  background: var(--surface);
  box-shadow: var(--shadow-card-sm);
  border: none;
}
[data-theme="dark"] .lib-cat-tab {
  background: hsl(220 25% 5% / 0.5);
  backdrop-filter: blur(8px);
}
.lib-cat-tab.is-active {
  color: white;
  background: linear-gradient(135deg, hsl(var(--hue1) 70% 55%), hsl(var(--hue2) 65% 55%));
  box-shadow: 0 4px 12px hsl(var(--hue1) 60% 45% / 0.4);
  border: none;
}
[data-theme="light"] .lib-cat-tab.is-active,
:root:not([data-theme]) .lib-cat-tab.is-active {
  box-shadow:
    0 6px 14px hsl(var(--hue1) 60% 50% / 0.35),
    inset 0 1px 0 hsl(0 0% 100% / 0.3);
}

/* ═══ SOUND GRID (2 colums) ═══ */
.lib-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 80px; /* place for mini player */
}

.lib-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 12px 12px;
  cursor: pointer;
  min-height: 156px;
  transition: transform var(--dur-fast) var(--ease);
}
.lib-card:active { transform: scale(0.98); }
/* Fix: hover state се залепяше на touch devices след tap.
   Хover ефект само върху pointer-fine устройства; focus отделен. */
@media (hover: hover) and (pointer: fine) {
  .lib-card:hover { box-shadow: var(--shadow-card), 0 0 0 2px hsl(var(--hue1) 60% 55% / 0.4); }
}
.lib-card:focus { outline: none; }
.lib-card:focus-visible {
  outline: 2px solid hsl(var(--hue1) 70% 55%);
  outline-offset: 3px;
}
.lib-card > * { position: relative; z-index: 5; }

/* Skeleton placeholder за loading / празни sound entries */
.lib-card-skeleton {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 12px 12px;
  min-height: 156px;
  border-radius: var(--radius);
  overflow: hidden;
}
[data-theme="light"] .lib-card-skeleton,
:root:not([data-theme]) .lib-card-skeleton {
  background: var(--surface);
  box-shadow: var(--shadow-card-sm);
}
[data-theme="dark"] .lib-card-skeleton {
  background: hsl(220 25% 8% / 0.6);
  backdrop-filter: blur(6px);
}
.lib-skel-row {
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg,
    hsl(220 18% 75% / 0.4) 0%,
    hsl(220 18% 85% / 0.6) 50%,
    hsl(220 18% 75% / 0.4) 100%);
  background-size: 200% 100%;
  animation: libSkeletonShimmer 1.6s ease-in-out infinite;
}
[data-theme="dark"] .lib-skel-row {
  background: linear-gradient(90deg,
    hsl(220 25% 14% / 0.6) 0%,
    hsl(220 25% 20% / 0.8) 50%,
    hsl(220 25% 14% / 0.6) 100%);
  background-size: 200% 100%;
}
.lib-skel-row--icon { width: 36px; height: 36px; border-radius: var(--radius-sm); }
.lib-skel-row--title { width: 70%; height: 14px; margin-top: 8px; }
.lib-skel-row--subtitle { width: 50%; height: 10px; }
.lib-skel-row--duration { width: 30%; height: 10px; margin-top: 4px; }

@keyframes libSkeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
@media (prefers-reduced-motion: reduce) {
  .lib-skel-row { animation: none; }
}
.lib-card.is-playing {
  box-shadow: var(--shadow-card), 0 0 0 2px hsl(var(--hue3) 70% 55%);
}
[data-theme="dark"] .lib-card.is-playing {
  box-shadow: var(--shadow-card), 0 0 16px hsl(var(--hue3) 70% 55% / 0.5);
}

.lib-card-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  color: var(--accent);
  flex-shrink: 0;
}
[data-theme="light"] .lib-card-icon,
:root:not([data-theme]) .lib-card-icon {
  background: hsl(var(--hue2) 55% 92%);
}
[data-theme="dark"] .lib-card-icon {
  background: hsl(var(--hue1) 40% 14% / 0.6);
  color: hsl(var(--hue3) 70% 70%);
}
.lib-card-icon svg { width: 22px; height: 22px; }

.lib-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.lib-card-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.005em;
  /* clamp 2 lines */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.lib-card-subtitle {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.lib-card-meta {
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.lib-card-duration {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

/* Favorite button — top-right corner */
.lib-card-fav {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-icon);
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  display: grid;
  place-items: center;
  z-index: 10;
  transition: color var(--dur) var(--ease), transform var(--dur-fast) var(--ease);
}
.lib-card-fav:hover { color: hsl(0 75% 60%); }
.lib-card-fav:active { transform: scale(0.9); }
.lib-card-fav.is-active { color: hsl(0 75% 60%); }
.lib-card-fav svg { width: 18px; height: 18px; }

/* ═══ MINI PLAYER (sticky bottom) ═══ */
.lib-miniplayer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  margin: 0 auto;
  max-width: 480px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0));
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
  animation: libMpSlideUp 0.3s var(--ease-spring);
}
[data-theme="light"] .lib-miniplayer,
:root:not([data-theme]) .lib-miniplayer {
  background: var(--bg-main);
  box-shadow: 0 -8px 24px rgba(163, 177, 198, 0.4);
}
[data-theme="dark"] .lib-miniplayer {
  background: hsl(220 25% 6% / 0.92);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
}
.lib-mp-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  /* A2.5: explicit button reset + tap-target sizing */
  background: transparent;
  border: 0;
  padding: 6px 4px;
  margin: 0;
  font-family: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  min-height: 48px;
  justify-content: center;
}
.lib-mp-body:active { opacity: 0.7; }
.lib-mp-body:focus { outline: none; }
.lib-mp-body:focus-visible {
  outline: 2px solid hsl(var(--hue3) 70% 55%);
  outline-offset: 2px;
  border-radius: 4px;
}
.lib-mp-eyebrow {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lib-mp-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-mp-subtitle {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-mp-btn {
  width: 48px;
  height: 48px;
  border: none;
  border-radius: var(--radius-icon);
  background: linear-gradient(135deg, hsl(var(--hue1) 70% 55%), hsl(var(--hue2) 65% 55%));
  color: white;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  box-shadow:
    0 4px 14px hsl(var(--hue1) 60% 45% / 0.45),
    inset 0 1px 0 hsl(0 0% 100% / 0.2);
  transition: transform var(--dur-fast) var(--ease);
}
.lib-mp-btn:active { transform: scale(var(--press)); }
.lib-mp-btn svg { width: 18px; height: 18px; }

.lib-mp-sleep {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius-icon);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.lib-mp-sleep:hover,
.lib-mp-sleep:focus-visible {
  color: var(--accent);
  background: hsl(var(--hue1) 20% 35% / 0.12);
  outline: none;
}
.lib-mp-sleep svg { width: 20px; height: 20px; }

@keyframes libMpSlideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .lib-miniplayer { animation: none; }
}