/* Practice papers (js/ailp-papers.js): the paper lists, the scenario and carried-forward panels in a sitting,
   the results, the home tile and the "Practice papers" button on each course path. Colours come from the
   variables in css/ailp.css, so dark mode follows on its own. */

/* ---------- the "Practice papers" button in a course's "Exam ready?" box ---------- */
.eb-btns a.papers-btn { color: var(--ink); text-decoration: none; border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.eb-btns a.papers-btn:hover { border-color: var(--accent); }

/* ---------- home: the tile in the row of feature cards ---------- */
.home-tools a.papers-tile {
  display: grid; gap: 4px; align-content: start; padding: 16px 18px; border-radius: 16px;
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
  color: var(--ink); text-decoration: none; transition: transform .15s var(--ease), box-shadow .15s;
}
.home-tools a.papers-tile:hover { transform: translateY(-2px); box-shadow: var(--lift); }
.home-tools a.papers-tile:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.papers-tile .pt-k { font: 700 .68rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.papers-tile b { font-size: 1.05rem; }
.papers-tile .pt-d { color: var(--muted); font-size: .88rem; line-height: 1.4; }
.papers-tile .pt-m { margin-top: 2px; font: 600 .76rem var(--mono); color: var(--muted); }

/* ---------- the paper lists (#papers, #papers/<course>) ---------- */
.papers-head p { max-width: 34em; }
.papers-list { list-style: none; margin: 24px auto 0; padding: 0; max-width: 640px; display: grid; gap: 14px; }
.paper-card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; box-shadow: var(--shadow); min-width: 0; }
.paper-card h3 { margin: 6px 0 6px; font-size: 1.15rem; letter-spacing: -0.01em; line-height: 1.25; }
.paper-card p { margin: 0 0 14px; color: var(--muted); font-size: .92rem; line-height: 1.45; }
.pc-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2px 12px; font: 600 .7rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.pc-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 14px; }
.pc-best { font-size: .86rem; color: var(--muted); }
.pc-best b { color: var(--good); }
.paper-card .ailp-btn { min-height: 44px; padding: 0 20px; text-decoration: none; }
.papers-sub { margin-top: 30px; }
.papers-sub h2 { max-width: 640px; margin: 0 auto -8px; font-size: 1.25rem; letter-spacing: -0.01em; }
.papers-sub h2 span { display: block; font: 600 .7rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
.papers-other { max-width: 640px; margin: 26px auto 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .88rem; }
.papers-other span { color: var(--muted); margin-right: 2px; }
.papers-other a { padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); color: var(--ink); text-decoration: none; }
.papers-other a:hover { border-color: var(--accent); }
.papers-none { text-align: center; color: var(--muted); }
.paper-msg { max-width: 640px; margin: 18px auto 0; }

/* ---------- a sitting: the intro ---------- */
.paper-back { display: inline-block; margin-top: 6px; }
.paper-brief { font-size: .95rem; }
.paper-rules p { font-size: .95rem; }
.paper-parts { margin: 0 0 12px; padding-left: 22px; }
.paper-parts li { margin: 4px 0; }
.paper-parts li span { margin-right: 8px; }
.paper-parts small { color: var(--muted); font-family: var(--mono); font-size: .75rem; white-space: nowrap; }
.paper-rules code { font-family: var(--mono); font-size: .9em; padding: 1px 5px; border-radius: 6px; background: var(--soft); }

/* the scenario: tables and notes (in the intro and in every part) */
.paper-tablewrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 10px 0 12px; }
.paper-tablewrap > .calc-table { margin: 0; }
.paper-tb, .paper-data, .paper-db { font-size: .88rem; }
.paper-tb th, .paper-tb td, .paper-data th, .paper-data td, .paper-db th, .paper-db td { padding: 6px 6px; }
.paper-tb tbody th, .paper-data tbody th, .paper-db tbody th { font-weight: 500; }
.paper-tb td, .paper-data td, .paper-db td { white-space: nowrap; }
.paper-db td.txt { min-width: 0; white-space: normal; }
.paper-h { margin: 14px 0 4px; }
.paper-notes, .paper-facts { margin: 6px 0 10px; padding-left: 20px; }
.paper-notes li, .paper-facts li { margin: 5px 0; line-height: 1.45; }
.paper-books { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 4px 18px; }
.paper-book { min-width: 0; overflow-x: auto; }
.paper-book .paper-h { margin-top: 10px; }

/* ---------- a sitting: each part ---------- */
details.paper-scenario { margin: 4px 0 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); box-shadow: var(--shadow); }
details.paper-scenario > summary {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 11px 16px; cursor: pointer; list-style: none; font-weight: 600; font-size: .95rem;
}
details.paper-scenario > summary::-webkit-details-marker { display: none; }
details.paper-scenario > summary span { min-width: 0; overflow-wrap: anywhere; }
details.paper-scenario > summary::after {
  content: "Show"; flex: none; font: 600 .72rem var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px;
}
details.paper-scenario[open] > summary::after { content: "Hide"; }
details.paper-scenario > summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 14px; }
.ps-body { padding: 0 16px 14px; font-size: .93rem; border-top: 1px solid var(--line); }
.ps-body > p:first-child { margin-top: 12px; }
.paper-bf {
  margin: 0 0 16px; padding: 10px 14px; border-left: 4px solid var(--accent); border-radius: 12px;
  background: var(--card); box-shadow: var(--shadow); font-size: .92rem; line-height: 1.5;
}
.paper-bf .paper-tablewrap { margin: 6px 0 8px; }
.pbf-label { display: block; margin-bottom: 4px; font: 700 .68rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.paper-run .calc-table th small { font-weight: 400; color: var(--muted); }
.paper-tbx .choice { flex-wrap: nowrap; }
/* bottom left, clear of the pop-up calculator button (bottom right) */
.mock-clock.paper-clock { left: 16px; right: auto; bottom: 20px; font-variant-numeric: tabular-nums; }

/* ---------- results ---------- */
.paper-best { margin: 4px 0 0; font-size: .9rem; color: var(--muted); }
.paper-best b { color: var(--ink); }
.paper-list-res .rl-txt small { display: block; color: var(--muted); font-size: .8rem; }
.pp-score { flex: none; font: 600 .85rem var(--mono); color: var(--muted); }
.paper-practise ul { gap: 8px; }
.paper-practise li { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.paper-practise .pp-txt { display: grid; gap: 2px; min-width: 0; }
.paper-practise .pp-txt small { color: var(--muted); font-size: .82rem; }
.paper-results .actions a.ailp-btn { color: var(--ink); text-decoration: none; }

/* ---------- phones ---------- */
@media (max-width: 600px) {
  .paper-card { padding: 16px; }
  .pc-foot .ailp-btn { width: 100%; }
  .paper-books { grid-template-columns: 1fr; }
  .ps-body { padding: 0 12px 12px; }
  .paper-tb, .paper-data, .paper-db { font-size: .8rem; }
  .paper-tb th, .paper-tb td, .paper-data th, .paper-data td, .paper-db th, .paper-db td { padding: 5px 4px; }
  .paper-tb td, .paper-data td { white-space: normal; }
  .paper-practise li { flex-wrap: wrap; }
  .paper-results .actions .ailp-btn { width: 100%; }
}