:root {
  --bvs-bg: #fff;
  --bvs-border: #d0d7de;
  --bvs-text: #24292f;
  --bvs-muted: #57606a;
  --bvs-accent: #0969da;
  --bvs-range-bg: rgba(9, 105, 218, 0.12);
  --bvs-range-strong-bg: rgba(9, 105, 218, 0.22);
}

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

.bvs {
  --bvs-touch: 48px;
  --bvs-grid-cols: 5;
  --bvs-gap: 8px;

  background: var(--bvs-bg);
  border: 1px solid var(--bvs-border);
  border-radius: 10px;
  padding: 10px;
  width: 100%;
  max-width: 960px;
}

.bvs__books {
  display: grid;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--bvs-border);
  min-width: 0;
  position: relative;
}

.bvs__bookTrigger {
  width: 100%;
  min-height: var(--bvs-touch);
  padding: 10px 12px;
  border: 1px solid var(--bvs-border);
  background: var(--bvs-bg);
  color: var(--bvs-text);
  border-radius: 8px;
  font-weight: 650;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  text-align: left;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__bookTrigger::after {
  content: '▾';
  color: var(--bvs-muted);
  font-size: 0.95em;
}

.bvs__bookTriggerLabel {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bvs__bookMenu {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 20;
  pointer-events: none;
}

.bvs__bookMenuPanel {
  position: relative;
  width: min(520px, 100%);

  background: var(--bvs-bg);
  border: 1px solid var(--bvs-border);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(27, 31, 36, 0.16);

  opacity: 0;
  transform: translateY(-6px);
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 140ms ease,
    transform 140ms ease,
    visibility 140ms ease;

  max-height: min(70vh, 520px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.bvs__bookMenu.is-open .bvs__bookMenuPanel {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
}

.bvs__menuHeader {
  display: grid;
  grid-template-columns: var(--bvs-touch) 1fr var(--bvs-touch);
  align-items: center;
  gap: 8px;
  padding: 8px 8px 6px;
  border-bottom: 1px solid var(--bvs-border);
}

.bvs__menuTitle {
  font-weight: 750;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bvs__menuIconBtn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--bvs-text);
  border-radius: 8px;
  min-height: var(--bvs-touch);
  min-width: var(--bvs-touch);
  padding: 0;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__menuIconBtn[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
}

.bvs__chapterMenu {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 20;
  pointer-events: none;
}

.bvs__chapterMenuPanel {
  position: relative;
  width: min(520px, 100%);

  background: var(--bvs-bg);
  border: 1px solid var(--bvs-border);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(27, 31, 36, 0.16);

  opacity: 0;
  transform: translateY(-6px);
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 140ms ease,
    transform 140ms ease,
    visibility 140ms ease;

  max-height: min(70vh, 520px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.bvs__chapterMenu.is-open .bvs__chapterMenuPanel {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
}

.bvs__chapterGrid {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
}

.bvs__chapterOption {
  border: 1px solid var(--bvs-border);
  background: var(--bvs-bg);
  color: var(--bvs-text);
  border-radius: 8px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__chapterOption.is-active {
  border-color: var(--bvs-accent);
  background: rgba(9, 105, 218, 0.06);
}

.bvs__testamentTabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 8px;
}

.bvs__tab {
  border: 1px solid var(--bvs-border);
  background: var(--bvs-bg);
  color: var(--bvs-muted);
  border-radius: 10px;
  min-height: var(--bvs-touch);
  cursor: pointer;
  font-weight: 800;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__tab.is-active {
  color: var(--bvs-accent);
  border-color: var(--bvs-accent);
  background: rgba(9, 105, 218, 0.06);
}

.bvs__crumbs {
  padding: 0 10px 8px;
  color: var(--bvs-muted);
  font-size: 13px;
  border-bottom: 1px solid rgba(208, 215, 222, 0.6);
}

.bvs__menuBody {
  padding: 10px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.bvs__optionGrid {
  display: grid;
  gap: 8px;
}

.bvs__optionGrid--testaments {
  grid-template-columns: 1fr;
}

.bvs__optionGrid--categories,
.bvs__optionGrid--books {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.bvs__optionBtn {
  border: 1px solid var(--bvs-border);
  background: var(--bvs-bg);
  color: var(--bvs-text);
  border-radius: 10px;
  min-height: var(--bvs-touch);
  padding: 10px 10px;
  cursor: pointer;
  text-align: left;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__optionBtn.is-active {
  border-color: var(--bvs-accent);
  background: rgba(9, 105, 218, 0.06);
}

.bvs__optionPrimary {
  font-weight: 800;
  font-size: 14px;
  line-height: 1.2;
}

.bvs__optionSecondary {
  font-size: 12px;
  color: var(--bvs-muted);
  margin-top: 3px;
}

.bvs__chapterNav {
  display: grid;
  grid-template-columns: var(--bvs-touch) 1fr var(--bvs-touch) auto;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
}

.bvs__arrow,
.bvs__clear,
.bvs__chapterTrigger {
  border: 1px solid var(--bvs-border);
  background: var(--bvs-bg);
  color: var(--bvs-text);
  border-radius: 8px;
  min-height: var(--bvs-touch);
  min-width: var(--bvs-touch);
  padding: 0 14px;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__arrow[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}

.bvs__chapterTrigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  text-align: left;
  font-weight: 650;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bvs__chapterTrigger::after {
  content: '▾';
  color: var(--bvs-muted);
  font-size: 0.95em;
}

.bvs__chapterTriggerLabel {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bvs__chapterLabel {
  min-width: 0;
  text-align: center;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.bvs__grid {
  display: grid;
  gap: var(--bvs-gap);
  grid-template-columns: repeat(var(--bvs-grid-cols), minmax(0, 1fr));
}

.bvs__verse {
  border: 1px solid var(--bvs-border);
  background: var(--bvs-bg);
  border-radius: 8px;
  min-height: var(--bvs-touch);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  color: var(--bvs-text);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.bvs__verse.is-inRange {
  background: var(--bvs-range-bg);
  border-color: rgba(9, 105, 218, 0.4);
}

.bvs__verse.is-rangeStart,
.bvs__verse.is-rangeEnd {
  background: var(--bvs-range-strong-bg);
  border-color: var(--bvs-accent);
}

.bvs__verse.is-paragraphStart {
  font-weight: 900;
}

.bvs button:focus-visible,
.bvs select:focus-visible,
.bvs input:focus-visible {
  outline: 2px solid var(--bvs-accent);
  outline-offset: 2px;
}

.bvs__arrow:active,
.bvs__clear:active,
.bvs__chapterTrigger:active,
.bvs__bookTrigger:active,
.bvs__tab:active,
.bvs__menuIconBtn:active,
.bvs__optionBtn:active,
.bvs__chapterOption:active,
.bvs__verse:active {
  background: rgba(9, 105, 218, 0.1);
}

@media (hover: hover) {
  .bvs__arrow:hover,
  .bvs__clear:hover,
  .bvs__chapterTrigger:hover,
  .bvs__bookTrigger:hover,
  .bvs__tab:hover,
  .bvs__menuIconBtn:hover,
  .bvs__optionBtn:hover,
  .bvs__chapterOption:hover,
  .bvs__verse:hover {
    border-color: rgba(9, 105, 218, 0.55);
  }
}

@media (max-width: 360px) {
  .bvs {
    --bvs-grid-cols: 4;
  }

  .bvs__chapterNav {
    gap: 6px;
  }

  .bvs__optionGrid--categories,
  .bvs__optionGrid--books {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 481px) {
  body {
    xpadding: 16px;
  }

  .bvs {
    --bvs-touch: 44px;
    --bvs-grid-cols: 6;
    --bvs-gap: 8px;

    padding: 12px;
  }

  .bvs__optionGrid--testaments {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bvs__optionGrid--categories,
  .bvs__optionGrid--books {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  body {
    xpadding: 24px;
  }

  .bvs {
    --bvs-grid-cols: 7;
    --bvs-gap: 6px;
  }
}

@media (min-width: 1024px) {
  .bvs {
    --bvs-grid-cols: 8;
  }
}

/* Demo-only helpers */
.demo {
  display: grid;
  gap: 16px;
  width: min(960px, 100%);
  margin: 0 auto;
}

.demo__output {
  background: #0b1021;
  color: #e6edf3;
  border-radius: 10px;
  padding: 14px;
  overflow: auto;
}