:root {
  --bg: #0a0b1f;
  --bg-soft: #111738;
  --panel: rgba(16, 22, 52, 0.78);
  --panel-border: rgba(255,255,255,0.12);
  --text: #f7fbff;
  --muted: #a8b4d8;
  --accent: #5b3df5;
  --accent-2: #00d0ff;
  --accent-3: #ff9c38;
  --good: #2cf7be;
  --warn: #ffd66d;
  --danger: #ff6889;
  --shadow: 0 28px 60px rgba(0,0,0,.35);
}

body.light {
  --bg: #edf2ff;
  --bg-soft: #f9fbff;
  --panel: rgba(255,255,255,0.88);
  --panel-border: rgba(17,31,68,0.10);
  --text: #0b1533;
  --muted: #5b6788;
  --shadow: 0 18px 40px rgba(61,85,150,.14);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(91,61,245,.30), transparent 26%),
    radial-gradient(circle at 95% 10%, rgba(0,208,255,.18), transparent 22%),
    linear-gradient(180deg, var(--bg), #050811 72%);
}

body.light {
  background:
    radial-gradient(circle at top left, rgba(91,61,245,.10), transparent 30%),
    radial-gradient(circle at 95% 10%, rgba(0,208,255,.09), transparent 22%),
    linear-gradient(180deg, #f8fbff, #edf2ff 72%);
}

.bg-orb {
  position: fixed;
  inset: auto;
  width: 380px;
  height: 380px;
  filter: blur(70px);
  opacity: .28;
  pointer-events: none;
}
.orb-a { left: -80px; top: 10vh; background: #693bff; }
.orb-b { right: -80px; top: 45vh; background: #00d0ff; }

.app-shell { position: relative; z-index: 1; padding: 22px; max-width: 1620px; margin: 0 auto; }
.glass {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  border-radius: 28px;
  padding: 26px;
  margin-bottom: 18px;
}
.hero h1 { margin: 8px 0 10px; font-size: clamp(2.2rem, 5vw, 4.4rem); line-height: .95; }
.eyebrow, .section-label {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .74rem;
  color: var(--accent-2);
  font-weight: 800;
}
.subcopy, .study-copy, .status, .empty-state { color: var(--muted); line-height: 1.55; }
.hero-controls {
  display: grid;
  gap: 12px;
  min-width: 240px;
}
.select-wrap {
  display: grid;
  gap: 8px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--muted);
}
.select-wrap span { margin-left: 4px; }
select, input, textarea {
  width: 100%;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: var(--text);
  border-radius: 16px;
  padding: 15px 16px;
  outline: none;
  font-size: 1rem;
  font-family: inherit;
  transition: .2s ease;
}
body.light select, body.light input, body.light textarea { background: rgba(17,31,68,.04); border-color: rgba(17,31,68,.10); }
input:focus, select:focus, textarea:focus { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(0,208,255,.14); }

button {
  border: 0;
  border-radius: 16px;
  padding: 14px 18px;
  font-weight: 800;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
  box-shadow: 0 12px 24px rgba(0,0,0,.18);
}
button:hover { transform: translateY(-2px); }
button:active { transform: translateY(0); }
.ghost-btn, .mini-btn, .chip, .icon-btn, .saved-item {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--panel-border);
  color: var(--text);
  box-shadow: none;
}
body.light .ghost-btn, body.light .mini-btn, body.light .chip, body.light .icon-btn, body.light .saved-item {
  background: rgba(17,31,68,.04);
}
.search-card { border-radius: 24px; padding: 18px; margin-bottom: 18px; }
.search-row, .study-search-row { display: flex; gap: 12px; }
.quick-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.chip { padding: 10px 14px; border-radius: 999px; font-weight: 700; }

.layout {
  display: grid;
  gap: 18px;
  grid-template-columns: 300px minmax(0, 1fr) 360px;
  align-items: start;
}

.sidebar, .content, .study { border-radius: 26px; padding: 18px; min-height: 74vh; }
.sidebar-head, .content-head {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px;
}
.tight { margin-bottom: 12px; }
.sidebar h2, .content h2 { margin: 0; }
.mini-search { margin-bottom: 12px; }
.books-list, .saved-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: calc(74vh - 124px);
  overflow: auto;
  padding-right: 4px;
}
.book-item, .saved-item {
  padding: 12px 14px;
  border-radius: 16px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  text-align: left;
}
.book-item small, .saved-item small { color: var(--muted); display: block; margin-top: 4px; }
.saved-item strong { display: block; }

.verses { display: flex; flex-direction: column; gap: 14px; }
.verse-card {
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.verse-card-top { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: start; }
.verse-card:hover { transform: translateY(-2px); }
.verse-card.highlighted {
  transform: translateY(-3px) scale(1.01);
  border-color: rgba(44,247,190,.58);
  box-shadow:
    0 0 0 2px rgba(44,247,190,.16),
    0 0 32px rgba(0,208,255,.18),
    0 22px 44px rgba(44,247,190,.12),
    inset 0 0 45px rgba(91,61,245,.11);
}
.verse-card.bookmarked { border-color: rgba(255,214,109,.36); }
.verse-card.noted { box-shadow: inset 0 0 0 1px rgba(255,104,137,.22); }
.verse-toggle {
  width: 100%;
  background: transparent;
  box-shadow: none;
  padding: 8px;
  text-align: left;
  color: var(--text);
}
.verse-ref { display: block; color: var(--accent-2); font-size: .88rem; margin-bottom: 8px; font-weight: 900; }
.verse-text { display: block; font-size: 1.08rem; line-height: 1.75; }
.verse-actions { display: flex; gap: 8px; }
.icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  padding: 0;
  display: grid;
  place-items: center;
  font-size: 1rem;
}
.verse-meta, .definition-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 10px;
  padding: 0 8px;
}
.meta-pill, .stat-pill {
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 8px 10px;
  color: var(--muted);
  display: inline-flex;
  gap: 8px;
  align-items: center;
}
.active-pill { color: var(--warn); border-color: rgba(255,214,109,.28); }
.word-chips { display: flex; gap: 8px; flex-wrap: wrap; padding: 8px; }
.word-chip { border-radius: 999px; padding: 8px 10px; font-size: .82rem; }

.panel-stack {
  display: grid;
  gap: 16px;
}
.study-panel {
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  padding: 14px;
  background: rgba(255,255,255,.03);
}
.definition-box {
  margin-top: 14px;
  min-height: 240px;
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 16px;
  background: rgba(255,255,255,.04);
}
.definition-box h3 { margin: 0 0 12px; font-size: 1.4rem; }
.saved-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.stat-pill strong { color: var(--text); }
.match-grid { display: grid; gap: 10px; margin-top: 14px; }
.match-pill {
  text-align: left;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 12px 14px;
}

.note-dialog {
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 0;
  background: var(--bg-soft);
  color: var(--text);
  width: min(640px, calc(100vw - 24px));
}
.note-dialog::backdrop { background: rgba(2,6,18,.55); backdrop-filter: blur(8px); }
.note-form { padding: 18px; }
textarea {
  min-height: 200px;
  resize: vertical;
  margin-top: 12px;
}
.note-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.16); border-radius: 999px; }
body.light ::-webkit-scrollbar-thumb { background: rgba(17,31,68,.14); }

@media (max-width: 1220px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar, .content, .study { min-height: auto; }
  .books-list, .saved-list { max-height: 320px; }
}
@media (max-width: 760px) {
  .app-shell { padding: 14px; }
  .hero, .search-card, .sidebar, .content, .study { border-radius: 20px; padding: 16px; }
  .hero { grid-template-columns: 1fr; display: grid; }
  .search-row, .study-search-row, .note-actions { flex-direction: column; }
  .verse-card-top { grid-template-columns: 1fr; }
}