/* =====================================================================
   Adiveda Bookshop — front-end styles
   Palette: ivory #FBF7F0, indigo #3A2F4F, saffron #C97B2A, gold #D9B65A
   ===================================================================== */

.adv-shop {
  --ink:        #3A2F4F;
  --ink-soft:   #5F5E5A;
  --ink-mute:   #8A7B5A;
  --paper:      #FBF7F0;
  --surface:    #FFFFFF;
  --line:       #E5DDC9;
  --line-soft:  #EFE8D6;
  --saffron:    #C97B2A;
  --saffron-dk: #A55F19;
  --gold:       #D9B65A;
  --shadow:     0 1px 2px rgba(58,47,79,0.04), 0 1px 0 rgba(58,47,79,0.02);

  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 20px 56px;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.adv-shop *,
.adv-shop *::before,
.adv-shop *::after { box-sizing: border-box; }

/* ---- Disclosure banner ------------------------------------------------ */
.adv-shop__disclosure {
  background: #FFF8EC;
  border: 1px solid #E8D9B8;
  color: #6B4A12;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.55;
  margin: 0 0 18px;
}
.adv-shop__disclosure a { color: #6B4A12; text-decoration: underline; }

/* ---- Page header ------------------------------------------------------ */
.adv-shop__header {
  text-align: center;
  padding: 14px 0 8px;
}
.adv-shop__title {
  font-family: Georgia, "Iowan Old Style", Cambria, serif;
  font-weight: 500;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 0 0 8px;
}
.adv-shop__subtitle {
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.55;
}

/* ---- Chip bar (horizontal scrollable on mobile, wrap on desktop) ------ */
.adv-shop__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 18px 0 8px;
  padding: 0 4px;
}
.adv-shop__chip {
  display: inline-block;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.adv-shop__chip:hover {
  border-color: var(--saffron);
  color: var(--saffron-dk);
}
.adv-shop__chip.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ---- Mandala divider -------------------------------------------------- */
.adv-shop__divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 28px 8px 22px;
  color: var(--ink-mute);
}
.adv-shop__divider span {
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ---- Section titles --------------------------------------------------- */
.adv-shop__section-title {
  font-family: Georgia, "Iowan Old Style", Cambria, serif;
  font-weight: 500;
  font-size: 20px;
  color: var(--ink);
  margin: 0 0 14px;
  text-align: center;
}

/* ---- Layout ----------------------------------------------------------- */
.adv-shop__layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
  align-items: start;
}

/* ---- Sidebar ---------------------------------------------------------- */
.adv-shop__sidebar {
  position: sticky;
  top: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 16px;
  font-size: 13.5px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
}
.adv-shop__sidebar-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
  margin: 18px 0 8px;
  font-weight: 600;
}
.adv-shop__sidebar-title:first-of-type { margin-top: 16px; }

.adv-shop__sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.adv-shop__sidebar-list li { margin: 0; }
.adv-shop__sidebar-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 8px;
  color: var(--ink);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
  line-height: 1.35;
}
.adv-shop__sidebar-list a:hover {
  background: var(--line-soft);
}
.adv-shop__sidebar-list a.is-active {
  background: rgba(201,123,42,0.10);
  border-left-color: var(--saffron);
  font-weight: 500;
}
.adv-shop__count {
  color: var(--ink-mute);
  font-size: 11px;
  margin-left: 8px;
}

/* ---- Search input ----------------------------------------------------- */
.adv-shop__search input {
  width: 100%;
  padding: 9px 12px;
  font-size: 13.5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
}
.adv-shop__search input:focus {
  outline: none;
  border-color: var(--saffron);
  box-shadow: 0 0 0 3px rgba(201,123,42,0.12);
}

/* ---- Pill filters ----------------------------------------------------- */
.adv-shop__filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.adv-shop__pill {
  font-size: 11.5px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.12s ease;
}
.adv-shop__pill:hover { border-color: var(--saffron); }
.adv-shop__pill.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.adv-shop__reset {
  display: block;
  width: 100%;
  margin-top: 18px;
  padding: 8px 10px;
  background: transparent;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}
.adv-shop__reset:hover {
  border-style: solid;
  border-color: var(--saffron);
  color: var(--saffron-dk);
}

/* ---- Grid ------------------------------------------------------------- */
.adv-shop__count-line {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--ink-mute);
}
.adv-shop__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 18px;
}

/* ---- Card ------------------------------------------------------------- */
.adv-book {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.adv-book:hover {
  transform: translateY(-3px);
  border-color: rgba(201,123,42,0.5);
  box-shadow: 0 8px 22px rgba(58,47,79,0.07), 0 2px 4px rgba(58,47,79,0.04);
}
.adv-book.is-hidden { display: none; }

.adv-book__cover-wrap {
  aspect-ratio: 2 / 3;
  background: #F0E8D2;
  border-radius: 6px;
  overflow: hidden;
  margin: 0 0 12px;
}
.adv-book-cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #F0E8D2;
}

.adv-book__body {
  display: flex;
  flex-direction: column;
  flex: 1;
}
.adv-book__title {
  font-family: Georgia, "Iowan Old Style", Cambria, serif;
  font-weight: 500;
  font-size: 15px;
  line-height: 1.3;
  margin: 0 0 4px;
  color: var(--ink);
}
.adv-book__author {
  font-size: 12px;
  color: var(--ink-mute);
  margin: 0 0 8px;
  font-style: italic;
}
.adv-book__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0 0 10px;
}
.adv-book__tag {
  font-size: 10.5px;
  padding: 2px 8px;
  color: var(--ink-soft);
  background: var(--line-soft);
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
}
.adv-book__tag:hover { background: rgba(201,123,42,0.15); color: var(--saffron-dk); }
.adv-book__tag--muted { background: transparent; border: 1px solid var(--line); }

.adv-book__desc {
  font-size: 12.5px;
  color: var(--ink-soft);
  line-height: 1.5;
  margin: 0 0 12px;
  flex: 1;
  /* Two-line clamp for uniform card heights */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.adv-book__buy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--saffron);
  color: #FFFFFF;
  font-size: 12.5px;
  font-weight: 500;
  padding: 9px 12px;
  border-radius: 6px;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background 0.15s ease, transform 0.1s ease;
}
.adv-book__buy:hover {
  background: var(--saffron-dk);
  color: #FFFFFF;
  transform: translateY(-1px);
}
.adv-book__buy:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.adv-book__buy--missing {
  background: var(--line-soft);
  color: var(--ink-mute);
  cursor: not-allowed;
}
.adv-book__buy--big {
  font-size: 15px;
  padding: 14px 22px;
}
.adv-book__buy-icon { flex-shrink: 0; }

/* ---- Empty state ------------------------------------------------------ */
.adv-shop__empty {
  text-align: center;
  padding: 48px 16px;
  color: var(--ink-mute);
  font-size: 14px;
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: 12px;
}
.adv-shop__linkbtn {
  background: none;
  border: none;
  color: var(--saffron-dk);
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
  padding: 0;
}

/* ---- Featured strip --------------------------------------------------- */
.adv-shop__grid--featured .adv-book {
  border-color: rgba(217,182,90,0.7);
}

/* ---- Footer note ------------------------------------------------------ */
.adv-shop__footnote {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--ink-mute);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}
.adv-shop__footnote a { color: var(--ink-mute); }

/* ---- Single book page ------------------------------------------------- */
.adv-single__crumbs {
  font-size: 12.5px;
  color: var(--ink-mute);
  margin: 8px 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.adv-single__crumbs a { color: var(--ink-soft); text-decoration: none; }
.adv-single__crumbs a:hover { color: var(--saffron-dk); }

.adv-single__layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.adv-single__cover .adv-book-cover {
  aspect-ratio: 2 / 3;
  height: auto;
  border-radius: 8px;
}
.adv-single__title {
  font-family: Georgia, "Iowan Old Style", Cambria, serif;
  font-weight: 500;
  font-size: 28px;
  line-height: 1.15;
  margin: 0 0 6px;
  color: var(--ink);
}
.adv-single__author {
  font-style: italic;
  color: var(--ink-mute);
  margin: 0 0 12px;
}
.adv-single__short {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0 0 16px;
}
.adv-single__long {
  color: var(--ink-soft);
  line-height: 1.7;
  margin: 0 0 18px;
}
.adv-single__long p { margin: 0 0 12px; }
.adv-single__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin: 0 0 16px;
}
.adv-single__note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--ink-mute);
}

/* ---- Screen reader only ----------------------------------------------- */
.adv-shop__sr {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---- Responsive ------------------------------------------------------- */
@media (max-width: 960px) {
  .adv-shop__layout {
    grid-template-columns: 1fr;
  }
  .adv-shop__sidebar {
    position: static;
    max-height: none;
  }
  .adv-single__layout {
    grid-template-columns: 1fr;
    padding: 22px;
  }
  .adv-single__cover {
    max-width: 220px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .adv-shop { padding: 16px 14px 40px; }
  .adv-shop__chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 0 4px 6px;
    -webkit-overflow-scrolling: touch;
  }
  .adv-shop__chips::-webkit-scrollbar { height: 4px; }
  .adv-shop__chips::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }
  .adv-shop__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .adv-book { padding: 10px; }
  .adv-book__title { font-size: 13.5px; }
  .adv-book__author { font-size: 11px; }
  .adv-book__desc { font-size: 11.5px; -webkit-line-clamp: 2; }
  .adv-book__buy { font-size: 11.5px; padding: 8px 10px; }
}

/* ---- Print: don't show filters/disclosure clutter -------------------- */
@media print {
  .adv-shop__sidebar,
  .adv-shop__chips,
  .adv-shop__reset { display: none; }
  .adv-book { break-inside: avoid; }
}