/* ==========================================================================
   PNLE-REVIEW — Library page
   Page-specific layout and widgets for library.html.
   Shared pieces (cards, qa-tile, ring, legend, dropzone…) live in
   components.css.
   ========================================================================== */

/* Fit-to-screen rows: top bar · main grid · bottom row */
.main--library { --fit-rows: auto 1fr auto; }

/* ============================== Grid ============================== */
.lib-grid {
  display: grid;
  grid-template-columns: minmax(0, 3.2fr) minmax(0, 1fr);
  gap: 14px;
  min-height: 0;
}
.lib-main {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 12px;
  min-width: 0;
  min-height: 0;
}
.lib-row { display: grid; gap: 14px; min-height: 0; }
.lib-row--top { grid-template-columns: minmax(0, 565fr) minmax(0, 362fr); }
.lib-row--files { grid-template-columns: minmax(0, 303fr) minmax(0, 528fr) 76px; gap: 12px; }
.lib-side {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 12px;
  min-width: 0;
  min-height: 0;
}
/* With a fixed height (fit mode) rows share space like the design */
/* Upload row, Study Sets and Quick Access always keep their full content
   height; only the files row and Study Progress take the leftover space
   (their lists scroll inside), so nothing gets clipped on short screens. */


.lib-bottom {
  display: grid;
  grid-template-columns: minmax(0, 795fr) minmax(0, 440fr);
  gap: 14px;
}

/* ============================== Upload ============================== */
.upload-card {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 136px;
  gap: 16px;
  padding: 16px 14px 14px 0;
}
.upload-card__art {
  margin: -16px 0 -14px;
  background: url("../../assests/images/library-upload.svg") center / cover no-repeat;
  -webkit-mask-image: linear-gradient(90deg, #000 68%, transparent);
          mask-image: linear-gradient(90deg, #000 68%, transparent);
}
.upload-card__main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.upload-card__intro { display: flex; align-items: flex-start; gap: 14px; }
.upload-card__icon { color: var(--primary); flex: none; }
.upload-card__icon .icon { width: 50px; height: 50px; stroke-width: 1.5; }
.upload-card__title { font-size: 15.5px; font-weight: 600; color: var(--text); }
.upload-card__desc { margin-top: 6px; font-size: 10px; line-height: 1.65; color: var(--text-2); }

.dropzone--lg {
  flex: 1;
  align-self: stretch;
  min-height: 136px;
  gap: 5px;
  font-size: 11px;
}
.dropzone--lg .dropzone__icon { width: 28px; height: 28px; color: var(--primary); }
.dropzone__or { font-size: 9.5px; color: var(--muted); }
.btn--md { padding: 7px 18px; font-size: 11.5px; }
.btn--md .icon { width: 14px; height: 14px; }

.upload-card__aside { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.info-box {
  padding: 10px 12px;
  background: var(--subtle);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
}
.info-box__head { display: flex; align-items: center; justify-content: space-between; }
.info-box__head h3 { font-size: 10.5px; font-weight: 600; color: var(--text); }
.info-box__head .icon { width: 13px; height: 13px; color: var(--primary); }
.info-box li { margin-top: 6px; font-size: 9.5px; color: var(--text-2); }

.upload-card__note { position: relative; flex: 1; min-height: 90px; }
.upload-card__note p {
  position: relative;
  z-index: 1;
  padding: 8px 0 0 4px;
  font-size: 15px;
  line-height: 1.4;
  transform: rotate(-8deg);
}
.upload-card__note .note-heart { display: inline-block; vertical-align: middle; }
.upload-card__note img {
  position: absolute;
  right: -10px;
  bottom: -6px;
  width: 64px;
  transform: rotate(-70deg);
}

/* ============================== Study modes ============================== */
.study-modes { display: flex; flex-direction: column; padding: 14px 16px; }
.mode-tiles {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.mode-tile {
  display: flex;
  flex-direction: column;
  min-height: 118px;
  padding: 12px 10px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.mode-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.mode-tile--green { background: var(--tint-green); border-color: var(--tint-green-border); }
.mode-tile--blue { background: linear-gradient(180deg, var(--tint-blue), var(--subtle)); border-color: #d3e0f8; }
.mode-tile--purple { background: var(--tint-rose); border-color: var(--tint-rose-border); }
.mode-tile__icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.7);
}
.mode-tile__icon .icon { width: 18px; height: 18px; }
.mode-tile--green .mode-tile__icon { color: #2f9d7e; }
.mode-tile--blue .mode-tile__icon { color: var(--blue); }
.mode-tile--purple .mode-tile__icon { color: #8a63d2; }
.mode-tile strong { margin-top: auto; padding-top: 12px; font-size: 13.5px; font-weight: 500; color: var(--text); white-space: nowrap; }
.mode-tile__desc {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-top: 8px;
  font-size: 9px;
  white-space: nowrap;
  color: var(--text-2);
}
.mode-tile__desc .icon { width: 11px; height: 11px; }
.mode-tile small { margin-top: 6px; font-size: 9.5px; color: var(--muted); }

.tip {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 11px 14px;
  font-size: 9.5px;
  line-height: 1.75;
  color: var(--text-2);
  background: var(--subtle);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
}
.tip .icon { width: 20px; height: 20px; stroke-width: 1.6; color: var(--text-2); }

/* ============================== Toolbar ============================== */
.lib-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  overflow: visible;
}
.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  font-size: 11px;
  color: var(--text-2);
  background: var(--card-solid);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.filter-tab .icon { width: 15px; height: 15px; }
.filter-tab:hover { color: var(--primary-600); border-color: #c4d4f4; }
.filter-tab.is-active {
  font-weight: 500;
  color: var(--primary-600);
  background: var(--primary-soft);
  border-color: #c4d4f4;
}
.lib-toolbar__tools { display: flex; gap: 10px; flex: none; }

/* ============================== Folders ============================== */
.folders { display: flex; flex-direction: column; padding: 14px 12px 12px 14px; }
.folders .card__title { font-size: 14.5px; }
.folder-list { margin-bottom: 12px; }
.folder-row {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto 13px;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 8px;
  font-size: 10px;
  text-align: left;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  border-radius: 6px;
  transition: background-color 0.15s ease;
}
.folder-list li:last-child .folder-row { border-bottom: 0; }
.folder-row:hover { background: var(--primary-softer); }
.folder-row.is-active { background: var(--primary-soft); }
.folder-row__icon .icon { width: 17px; height: 17px; }
.folder-row__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-row__count { font-size: 9px; color: var(--muted); }
.folder-row__chev { width: 13px; height: 13px; color: var(--muted); }

/* Delete button: shown on hover / keyboard focus, over the chevron */
.folder-item { position: relative; }
.folder-item__delete {
  position: absolute;
  top: 50%;
  right: 2px;
  width: 24px;
  height: 24px;
  color: var(--muted);
  opacity: 0;
  transform: translateY(-50%);
  transition: opacity 0.15s ease, color 0.15s ease;
}
.folder-item__delete .icon { width: 13px; height: 13px; }
.folder-item__delete:hover { color: var(--red); background: var(--tone-pink); }
.folder-item:hover .folder-item__delete,
.folder-item:focus-within .folder-item__delete { opacity: 1; }
.folder-item--deletable:hover .folder-row__chev,
.folder-item--deletable:focus-within .folder-row__chev { visibility: hidden; }
@media (hover: none) {
  .folder-item__delete { opacity: 1; }
  .folder-item--deletable .folder-row__chev { visibility: hidden; }
}

.folder-form { display: flex; align-items: center; gap: 6px; margin: -4px 0 12px; }
.folder-form input {
  flex: 1;
  min-width: 0;
  height: 30px;
  padding: 0 10px;
  font-size: 11px;
  background: var(--card-solid);
  border: 1px solid var(--card-border);
  border-radius: 7px;
  outline: 0;
}
.folder-form input:focus { border-color: var(--primary); box-shadow: var(--focus); }
.folder-form .btn { padding: 6px 12px; }

.folders__note {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding: 11px 40px 11px 14px;
  font-size: 9.5px;
  line-height: 1.6;
  color: var(--text-2);
  background: var(--subtle);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
}
.folders__note-icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex: none;
  border-radius: 8px;
  color: var(--blue);
  background: var(--tone-blue);
}
.folders__note-icon .icon { width: 15px; height: 15px; }
.folders__note .note-heart { display: inline-block; width: 11px; height: 11px; vertical-align: -1px; }
.folders__note img { position: absolute; right: 10px; bottom: 6px; width: 24px; height: 24px; }

/* ============================== Recent files ============================== */
.recent-files { display: flex; flex-direction: column; padding: 14px 14px 12px; }
.recent-files .card__head { padding-right: 30px; }
.recent-files .card__title { font-size: 14px; }
.recent-files__sprig {
  position: absolute;
  top: -10px;
  right: -12px;
  width: 44px;
  transform: rotate(-30deg);
  pointer-events: none;
}
.title-badge {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  color: #fff;
  background: var(--primary);
}
.title-badge .icon { width: 12px; height: 12px; color: #fff; }

.file-panel {
  flex: 1;
  min-height: 0;
  padding: 2px 12px;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow-y: auto;
  scrollbar-width: thin;
}
.file-row {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 52px 74px auto;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.file-list li:last-child { border-bottom: 0; }
.file-row__icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
}
.file-row__icon .icon { width: 16px; height: 16px; }
.file-row__icon--uploaded { color: var(--red); background: var(--tone-pink); }
.file-row__icon--generated { color: var(--blue); background: var(--tone-blue); }
.file-row__info { min-width: 0; }
.file-row__name {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 10.5px;
  color: var(--text);
}
.file-row__open {
  max-width: 100%;
  padding: 0;
  font: inherit;
  font-size: 10.5px;
  text-align: left;
  background: none;
  border: 0;
  cursor: pointer;
}
.file-row__open:hover { color: var(--primary-600); text-decoration: underline; }
.file-row__open:focus-visible { outline: 0; box-shadow: var(--focus); border-radius: 4px; }
.file-row__meta { display: block; margin-top: 4px; font-size: 9px; color: var(--muted); }
.file-row__date { font-size: 9.5px; color: var(--muted); white-space: nowrap; }
.file-row__actions { display: flex; gap: 2px; }
.file-row__actions .icon-btn { width: 26px; height: 26px; color: var(--text-2); }
.file-row__actions .icon { width: 14px; height: 14px; }

.np-tag {
  padding: 2px 0;
  font-size: 9px;
  font-weight: 600;
  text-align: center;
  border-radius: 6px;
}
.np-tag--np1,
.np-tag--np2,
.np-tag--np3 { color: var(--primary-600); background: var(--tone-blue); }
.np-tag--np4 { color: #8a63d2; background: var(--tone-purple); }
.np-tag--np5 { color: var(--pink); background: var(--tone-pink); }
.np-tag--general { color: var(--text-2); background: var(--subtle-2); }

.file-list__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 40px 10px;
  font-size: 11px;
  text-align: center;
  color: var(--muted);
}
.file-list__empty .icon { width: 28px; height: 28px; stroke-width: 1.5; }

.art-strip {
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: url("../../assests/images/library-strip.svg") center / cover no-repeat;
  box-shadow: var(--shadow);
}

/* ============================== Right column ============================== */
.study-sets { display: flex; flex-direction: column; padding: 14px 14px 12px; }
.study-sets .card__head { margin-bottom: 10px; }
.set-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.set-row {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 14px;
  align-items: center;
  gap: 12px;
  padding: 7px 12px 7px 8px;
  background: var(--card-solid);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.set-row:hover { transform: translateX(2px); box-shadow: var(--shadow); }
.set-row__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
}
.set-row__icon .icon { width: 18px; height: 18px; }
.set-row__text { min-width: 0; }
.set-row__text strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; font-weight: 500; color: var(--text); }
.set-row__text small { display: block; margin-top: 3px; font-size: 9.5px; color: var(--muted); }
.set-row__chev { width: 14px; height: 14px; color: var(--text-2); }

.quick-access { display: flex; flex-direction: column; padding: 14px 14px 12px; }
.quick-access .card__head { margin-bottom: 10px; }
.quick-access .qa-grid { flex: none; gap: 8px; grid-auto-rows: auto; }
/* Compact tile: icon beside a two-line label */
.quick-access .qa-tile {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 10px;
  align-items: center;
  min-height: 0;
  padding: 10px;
}
.quick-access .qa-tile__icon { grid-row: 1 / 3; width: 32px; height: 32px; border-radius: 9px; }
.quick-access .qa-tile__icon .icon { width: 17px; height: 17px; }
.quick-access .qa-tile strong { align-self: end; margin-top: 0; font-size: 10.5px; line-height: 1.3; white-space: normal; }
.quick-access .qa-tile span:last-child { align-self: start; margin-top: 2px; font-size: 9px; line-height: 1.35; white-space: normal; }

.study-progress { display: flex; flex-direction: column; padding: 12px 14px; }
.study-progress .card__head { margin-bottom: 6px; }
.study-progress .card__title { font-size: 13px; }
.study-progress__body {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
}
.study-progress__ring { margin: 0; text-align: center; }
.study-progress__ring figcaption { margin-top: 6px; font-size: 9.5px; color: var(--text); }
.ring--sm { width: 90px; height: 90px; }
.ring--sm .ring__label { font-size: 20px; }
.np-legend--sm { gap: 7px; }
.np-legend--sm li { grid-template-columns: 7px 32px minmax(0, 1fr) 26px; gap: 6px; font-size: 9px; }
.np-legend--sm .dot { width: 7px; height: 7px; }
.np-legend--sm .bar { height: 6px; }
.np-legend--sm .np-legend__pct { font-size: 9px; }

/* ============================== Bottom row ============================== */
.quick-stats { padding: 12px 18px 14px; }
.quick-stats .card__title { font-size: 13px; }
.stat-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 12px;
}
.stat-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 2px 18px;
  border-left: 1px solid var(--line);
}
.stat-list li:first-child { border-left: 0; padding-left: 4px; }
.stat-list__icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 9px;
}
.stat-list__icon .icon { width: 18px; height: 18px; }
.stat-list strong { display: block; font-size: 15px; font-weight: 600; color: var(--text); }
.stat-list small { display: block; font-size: 9.5px; color: var(--text-2); white-space: nowrap; }

.lib-quote { min-height: 110px; padding: 0; }
.lib-quote__art {
  position: absolute;
  inset: 0 auto 0 0;
  width: 66%;
  background: url("../../assests/images/library-quote.svg") left center / cover no-repeat;
}
.lib-quote::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 38%, var(--card-solid) 64%);
  pointer-events: none;
}
.lib-quote__text {
  position: absolute;
  z-index: 1;
  top: 50%;
  right: 30px;
  font-size: 16.5px;
  line-height: 1.45;
  transform: translateY(-50%) rotate(-7deg);
}
.lib-quote__text .note-heart { display: inline-block; vertical-align: middle; margin-left: 4px; }
.lib-quote__flower {
  position: absolute;
  z-index: 1;
  right: 10px;
  bottom: 8px;
  width: 22px;
  height: 22px;
}

/* ============================== Breakpoints ============================== */
@media (max-width: 1320px) {
  .lib-grid { grid-template-columns: minmax(0, 1fr); }
  .lib-main { grid-template-rows: none; }
  .lib-side { grid-template-rows: none; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lib-row--files { grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr); }
  .art-strip { display: none; }
  .file-panel { max-height: 460px; }
}

@media (max-width: 1024px) {
  .lib-row--top { grid-template-columns: minmax(0, 1fr); }
  .lib-side { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .study-progress { grid-column: 1 / -1; }
  .lib-toolbar { flex-wrap: wrap; }
  .lib-bottom { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 720px) {
  .upload-card { grid-template-columns: minmax(0, 1fr); padding: 16px; }
  .upload-card__art { display: none; }
  .upload-card__note { display: none; }
  .lib-row--files,
  .lib-side { grid-template-columns: minmax(0, 1fr); }
  .lib-toolbar__tools { width: 100%; }
  .lib-toolbar__tools .search { flex: 1; width: auto; }
  .file-row { grid-template-columns: 30px minmax(0, 1fr) auto; }
  .file-row .np-tag,
  .file-row__date { display: none; }
  .stat-list { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 14px; }
  .stat-list li:nth-child(3) { border-left: 0; padding-left: 4px; }
  .lib-quote { min-height: 130px; }
}

/* Dark mode: the blue tile's light border reads as "selected" on dark */
:root[data-theme="dark"] .mode-tile--blue { border-color: var(--card-border); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .mode-tile--blue { border-color: var(--card-border); } }

/* Select & delete */
.recent-files__tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.recent-files .card__head { gap: 10px; }
.file-list.is-bulk .file-row { border-radius: 8px; }
.file-list.is-bulk .file-row:hover { background: var(--primary-softer); }
.file-row.is-picked { background: var(--primary-soft); }

/* Phones: the corner sprig would sit on top of the Select button */
@media (max-width: 720px) {
  .recent-files__sprig { display: none; }
  .recent-files .card__head { padding-right: 0; }
}