:root {
  --bg: #1b2745; --bg-2: #202d50; --card: #253359; --card-2: #2b3b66; --line: #33466f;
  --ink: #e9edf7; --muted: #9aa8c7; --dim: #6f7fa3;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --panel-w: 380px;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; font: 16px/1.5 var(--sans); color: var(--ink); background: var(--bg); }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px 8px; }
.top h1 { margin: 0; font: 600 1.25rem/1.2 var(--sans); letter-spacing: .01em; }
.modes { display: inline-flex; background: var(--bg-2); border-radius: 999px; padding: 3px; }
.modes button { padding: 6px 16px; border-radius: 999px; color: var(--muted); }
.modes button[aria-selected="true"] { background: var(--card-2); color: var(--ink); }

/* timeline */
.timeline { padding: 6px 0 0; }
.track { display: flex; gap: 18px; overflow-x: auto; padding: 26px 26px 22px; scroll-snap-type: x proximity; position: relative; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.track::-webkit-scrollbar { height: 8px; }
.track::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }
.track.sub { padding-top: 6px; gap: 12px; }

/* the connecting line: drawn per card so it spans the full scroll width, joined edge to edge */
.card::before { content: ""; position: absolute; left: -18px; right: -18px; top: 0; height: 3px; background: var(--line); z-index: -1; transform: translateY(-13px); }
.track.sub .card::before { left: -12px; right: -12px; height: 2px; transform: translateY(-9px); }
.card:first-child::before { left: 50%; }
.card:last-child::before { right: 50%; }
.card .pin { position: absolute; left: 50%; top: -19px; width: 14px; height: 14px; border-radius: 50%; background: var(--c); border: 3px solid var(--bg); transform: translateX(-50%); }
.track.sub .card .pin { width: 10px; height: 10px; top: -14px; border-width: 2px; }

.card { position: relative; flex: 0 0 200px; display: flex; flex-direction: column; text-align: left; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: visible; scroll-snap-align: start; box-shadow: 0 8px 22px rgba(0,0,0,.28); transition: transform .2s, border-color .2s, box-shadow .2s; }
.card:hover { transform: translateY(-6px); border-color: var(--c); box-shadow: 0 12px 28px color-mix(in srgb, var(--c) 18%, rgba(0,0,0,.35)); background: var(--card-2); }
.card.active { border-color: var(--c); box-shadow: 0 0 0 1px var(--c), 0 10px 26px rgba(0,0,0,.35); }
.card .img { display: block; height: 100px; background: #121a30 center/cover no-repeat; border-radius: 11px 11px 0 0; border-bottom: 1px solid var(--line); }
.card .body { padding: 12px 13px 12px; flex: 1; display: flex; flex-direction: column; gap: 4px; }
.card .ref { font: 700 .68rem/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--c); }
.card .title { font-weight: 600; font-size: .95rem; line-height: 1.25; }
.card .teaser { font-size: .8rem; line-height: 1.4; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { margin-top: 4px; font-size: .72rem; color: var(--c); opacity: .9; }
.card.small { flex-basis: 160px; box-shadow: 0 6px 16px rgba(0,0,0,.25); }
.card.small .body { padding: 10px 11px; }
.card.small .title { font-size: .88rem; }
.card.small .teaser { font-size: .76rem; }

/* reader */
.reader { display: grid; grid-template-columns: minmax(0, 1fr) var(--panel-w); gap: 0 28px; padding: 10px 22px 60px; max-width: 1240px; margin: 0 auto; }
.chapter-head { display: flex; align-items: center; gap: 10px; margin: 10px 0 4px; }
.chapter-head h2 { margin: 0; font: 600 1.5rem/1.2 var(--sans); padding-left: 12px; border-left: 5px solid var(--c, var(--muted)); }
.nav { width: 34px; height: 34px; border-radius: 50%; background: var(--card); font-size: 1.3rem; line-height: 1; }
.nav:disabled { opacity: .3; cursor: default; }
.hint { color: var(--dim); font-size: .85rem; margin: 4px 0 12px; }

.verse { margin: 0; padding: 7px 10px 7px 42px; position: relative; font-family: var(--serif); font-size: 1.12rem; line-height: 1.65; border-radius: 6px; max-width: 72ch; }
.verse .vn { position: absolute; left: 12px; top: 10px; font: 600 .72rem/1 var(--sans); color: var(--dim); }
.verse.has { cursor: pointer; }
.verse.has .vn { color: var(--c); }
.verse.has::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 3px; border-radius: 2px; background: var(--c); }
.verse.has:hover { background: var(--bg-2); }
.verse.selected { background: var(--card); }
.verse .mark { display: inline-block; margin-left: 8px; min-width: 20px; padding: 0 6px; border-radius: 999px; background: var(--c); color: #16213d; font: 700 .7rem/20px var(--sans); text-align: center; vertical-align: 2px; }
.loading, .empty { color: var(--dim); }

/* panel */
.panel { position: sticky; top: 14px; align-self: start; max-height: calc(100vh - 28px); overflow-y: auto; background: var(--card); border-radius: 12px; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.panel-inner { padding: 16px 18px 22px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; }
.panel h3 { margin: 0; font: 600 1.1rem/1.3 var(--sans); }
.panel h4 { margin: 18px 0 8px; font: 600 .8rem/1 var(--sans); color: var(--muted); letter-spacing: .02em; }
.close { display: none; width: 34px; height: 34px; border-radius: 50%; font-size: 1.4rem; line-height: 1; background: var(--card-2); }
.xref, .note { padding: 10px 0 12px; border-top: 1px solid var(--line); }
.xref header, .note header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; margin-bottom: 4px; }
.xref .ver { font-size: .75rem; color: var(--muted); }
.rng { font-size: .75rem; color: var(--dim); }
.scripture { font-family: var(--serif); font-size: 1rem; line-height: 1.55; margin: 0 0 6px; }
.scripture sup { font-family: var(--sans); font-size: .65em; color: var(--muted); }
.comment { font-size: .93rem; color: #d3dbee; }
.comment p { margin: .35em 0; }
.comment ul { margin: .35em 0; padding-left: 20px; }
.comment blockquote { margin: .4em 0; padding-left: 10px; border-left: 3px solid var(--line); color: var(--muted); }
.comment a { color: #7fc4ff; }

/* tooltip */
.tip { position: absolute; z-index: 5; max-width: 320px; padding: 6px 10px; background: #0f1730; border: 1px solid var(--line); border-radius: 6px; font-size: .8rem; color: var(--ink); pointer-events: none; }
.tip .sep { margin: 0 6px; color: var(--dim); }

@media (prefers-reduced-motion: reduce) { .card { transition: none; } .card:hover { transform: none; } }

/* mobile: panel becomes a bottom sheet */
@media (max-width: 860px) {
  .reader { grid-template-columns: 1fr; padding: 6px 14px 40px; }
  .verse { padding-left: 36px; font-size: 1.05rem; }
  .verse .vn { left: 8px; }
  .panel { position: fixed; left: 0; right: 0; bottom: 0; top: auto; max-height: 70vh; border-radius: 16px 16px 0 0; transform: translateY(105%); transition: transform .25s; box-shadow: 0 -8px 30px rgba(0,0,0,.4); z-index: 10; }
  body.panel-open .panel { transform: none; }
  body.panel-open { padding-bottom: 40vh; }
  .close { display: inline-block; }
  .card { flex-basis: 180px; }
  .top { padding: 14px 14px 6px; flex-wrap: wrap; }
  .track { padding-left: 14px; padding-right: 14px; }
}