/* ============================================================
   A-Level Study Help — index-card theme (no framework)
   Colours and fonts carried over from the old site.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Source+Serif+4:ital,wght@0,400;0,600;1,400&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  --ink: #1C2333;
  --ink-soft: #4A5266;
  --ink-faint: #8890A0;
  --paper: #EEF0EA;
  --card: #F8F9F5;
  --navy: #2C4C8C;
  --navy-dark: #1D3563;
  --brick: #C4432B;
  --brick-soft: rgba(196, 67, 43, 0.12);
  --line: #C9CCC2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #E7E9F0;
    --ink-soft: #AEB4C4;
    --ink-faint: #7A8296;
    --paper: #1A1F2E;
    --card: #232A3D;
    --navy: #6E8FD6;
    --navy-dark: #8FADEB;
    --brick: #E08163;
    --brick-soft: rgba(224, 129, 99, 0.16);
    --line: #39415A;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
h1, h2, h3, .grotesk { font-family: "Space Grotesk", sans-serif; letter-spacing: -0.005em; }
a { color: var(--navy); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--brick);
  outline-offset: 2px;
}

/* ---------- announcement + header ---------- */
.announce {
  background: var(--navy);
  color: #fff;
  text-align: center;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.8rem;
  padding: 7px 14px;
}
.announce a { color: #fff; text-underline-offset: 2px; }
header.site {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto;
  padding: 18px 20px 6px;
}
.logo {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
}
.logo .stamp { margin-left: 8px; }
nav.site { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
nav.site a {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 6px 12px;
  border-radius: 8px;
}
nav.site a:hover { color: var(--navy); background: var(--card); }
nav.site a[aria-current="page"] { color: var(--navy); border-bottom: 3px solid var(--brick); border-radius: 8px 8px 0 0; }

main { max-width: 1000px; margin: 0 auto; padding: 10px 20px 60px; }

/* ---------- index-card flourishes ---------- */
.stamp {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: inline-block;
  border: 1.5px solid var(--navy);
  color: var(--navy);
  border-radius: 5px;
  padding: 1px 7px;
  transform: rotate(-3deg);
  vertical-align: middle;
}
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--navy);
  background: var(--card);
  border: 1px dashed var(--navy);
  border-radius: 20px;
  padding: 4px 12px;
  display: inline-block;
  transform: rotate(-1.5deg);
}

/* ---------- hero + search ---------- */
.hero { padding: 26px 0 8px; }
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  line-height: 1.1;
  margin: 14px 0 10px;
}
.hero p.sub { color: var(--ink-soft); max-width: 640px; margin: 0 0 22px; }

.searchbar { position: relative; max-width: 720px; }
.searchbar input {
  width: 100%;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
  padding: 15px 18px;
  border: 2px solid var(--navy);
  border-radius: 12px;
  background: var(--card);
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--brick-soft);
}
.searchbar input::placeholder { color: var(--ink-faint); font-size: 0.95rem; }
.searchbar input:focus { border-color: var(--brick); outline: none; box-shadow: 3px 3px 0 var(--brick-soft), 0 0 0 3px var(--brick-soft); }

.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 14px 0 4px; }
.chip {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: 4px 14px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
}
.chip:hover { border-color: var(--navy); color: var(--navy); }
.chip.on { border-color: var(--navy); background: var(--navy); color: var(--paper); }
@media (prefers-color-scheme: dark) { .chip.on { color: #10141f; } }

.status {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin: 10px 0 18px;
  min-height: 1.2em;
}

/* ---------- search results ---------- */
.hit {
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 10px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
}
.hit:hover { border-color: var(--brick); }
.hit .meta {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.74rem;
  color: var(--ink-soft);
  margin-bottom: 5px;
}
.hit .meta b { color: var(--ink); }
.kind-qp { color: var(--navy); font-weight: 600; }
.kind-ms { color: var(--brick); font-weight: 600; }
.hit .text { display: block; font-size: 0.86rem; line-height: 1.5; }
.hit mark { background: var(--brick-soft); color: inherit; padding: 0 1px; border-radius: 2px; }
.doc-pill {
  display: inline-block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: 4px 13px;
  margin: 0 6px 8px 0;
  color: var(--ink-soft);
  text-decoration: none;
}
.doc-pill:hover { border-color: var(--brick); color: var(--brick); }
.results h3, .more-note {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin: 20px 0 10px;
}

/* ---------- past-paper matrix ---------- */
.pp-years {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
  margin: 14px 0 30px;
}
.pp-year {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  padding: 13px 15px 10px;
}
.pp-year-head {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 8px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 6px;
}
.pp-row { display: flex; align-items: baseline; gap: 8px; padding: 3px 0; flex-wrap: wrap; }
.pp-name {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 0.74rem;
  min-width: 60px;
  color: var(--ink-soft);
}
.pp-btns { display: flex; flex-wrap: wrap; gap: 5px; }
.pp-btn {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: 2px 11px;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
}
.pp-btn:hover { border-color: var(--brick); color: var(--brick); }
.pp-btn.qp { border-color: var(--navy); background: var(--navy); color: var(--paper); }
@media (prefers-color-scheme: dark) { .pp-btn.qp { color: #10141f; } }
.pp-btn.qp:hover { background: var(--navy-dark); border-color: var(--navy-dark); }
.pp-btn.extra { border-style: dashed; }
h2.level-head { font-size: 1.25rem; margin: 26px 0 4px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }

/* ---------- resources ---------- */
.book-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 14px; margin: 14px 0 30px; }
.book {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  padding: 14px 16px;
}
.book b { font-family: "Space Grotesk", sans-serif; font-size: 0.92rem; line-height: 1.35; display: block; }
.book .by { font-size: 0.78rem; color: var(--ink-faint); margin: 4px 0 10px; display: block; }
.book .links { display: flex; flex-wrap: wrap; gap: 5px; }
.linklist { list-style: none; padding: 0; margin: 10px 0 26px; }
.linklist li { margin: 0 0 8px; }

/* ---------- subject cards (home) ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 16px 0; }
.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  padding: 14px 16px 14px 26px;
  text-decoration: none;
  color: var(--ink);
}
.card::before {
  content: "";
  position: absolute;
  left: 11px; top: 16px; bottom: 16px; width: 4px;
  border-radius: 3px;
  background: var(--tab, var(--navy));
}
.card:hover { border-color: var(--brick); }
.card b { font-family: "Space Grotesk", sans-serif; font-size: 1rem; }
.card span.desc { display: block; font-size: 0.82rem; color: var(--ink-soft); margin-top: 4px; }
.card.econ { --tab: #2C4C8C; } .card.french { --tab: #5C3D8C; }
.card.geog { --tab: #2F7A4F; } .card.psych { --tab: #C4432B; }

footer.site {
  border-top: 1px dashed var(--line);
  max-width: 1000px;
  margin: 30px auto 0;
  padding: 18px 20px 34px;
  font-size: 0.8rem;
  color: var(--ink-faint);
  font-family: "Space Grotesk", sans-serif;
}
footer.site a { color: var(--ink-soft); }

@media (prefers-reduced-motion: no-preference) {
  .hit, .pp-btn, .chip, .card { transition: border-color 0.12s ease, background 0.12s ease; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .pp-name { min-width: 100%; }
}

/* ---------- expandable question lists ---------- */
.q-toggle {
  cursor: pointer;
  background: transparent;
  border-style: dashed;
  color: var(--navy);
  border-color: var(--navy);
}
.q-toggle:hover { color: var(--brick); border-color: var(--brick); }
.q-list {
  margin: 6px 0 10px;
  border-left: 3px solid var(--brick-soft);
  padding-left: 10px;
}
details.q {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  margin: 0 0 6px;
  padding: 0;
}
details.q summary {
  cursor: pointer;
  list-style: none;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  color: var(--ink-soft);
  padding: 8px 12px;
}
details.q summary::-webkit-details-marker { display: none; }
details.q summary::before { content: "▸ "; color: var(--brick); }
details.q[open] summary::before { content: "+ "; }
details.q summary b { color: var(--navy); }
details.q[open] { background: var(--card); }
details.q .q-text {
  font-size: 0.85rem;
  line-height: 1.55;
  margin: 2px 0 8px;
  padding: 0 12px;
}
details.q .q-links { margin: 0 0 10px; padding: 0 12px; }
.ms-block {
  border-top: 1px dashed var(--line);
  margin-top: 4px;
  padding-top: 8px;
  background: var(--brick-soft);
  border-radius: 0 0 10px 10px;
}
.ms-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--brick);
  padding: 2px 12px 0;
  display: inline-block;
}

/* ---------- question bank ---------- */
.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin: 4px 0 6px;
}
.qb-search {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.9rem;
  padding: 8px 14px;
  border: 2px solid var(--navy);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink);
  flex: 1 1 200px;
  min-width: 170px;
}
.qb-search:focus { border-color: var(--brick); outline: none; }
.qb-select {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 8px 10px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink-soft);
  max-width: 250px;
}
.qb-pills { display: flex; gap: 5px; }
.qcard {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  padding: 14px 18px 12px;
  margin: 0 0 12px;
  max-width: 820px;
}
.qcard-head {
  display: flex;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 7px;
  margin-bottom: 9px;
}
.qnum {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
}
.qmarks {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1.5px solid var(--brick);
  color: var(--brick);
  border-radius: 5px;
  padding: 1px 7px;
  transform: rotate(-2deg);
}
.qmeta {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin-left: auto;
  text-align: right;
}
.qtext { font-size: 0.95rem; line-height: 1.6; margin: 0 0 10px; }
.qtext .cmd, .qtext-fr .cmd { color: var(--brick); }
.qtext-fr { font-style: normal; }
.qtitle {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  margin: 0 0 6px;
}
.qnote { font-size: 0.78rem; color: var(--ink-faint); font-style: italic; margin: -4px 0 10px; }
.q-cap { font-size: 0.82rem; color: var(--ink-soft); margin: 0 0 4px; }
.q-bullets, .q-questions { font-size: 0.88rem; margin: 0 0 10px; padding-left: 22px; }
.q-bullets li, .q-questions li { margin-bottom: 3px; }
.q-questions li::marker { font-family: "Space Grotesk", sans-serif; font-weight: 600; color: var(--navy); }
.qlinks { display: flex; flex-wrap: wrap; gap: 5px; }
@media (max-width: 560px) { .qmeta { margin-left: 0; text-align: left; width: 100%; } }

/* ---------- multi-link buttons + popup ---------- */
.pp-menu { display: inline-block; }
.pp-menu-list { display: none !important; } /* holds the links; shown via popup */
.pp-menu-btn { cursor: pointer; background: var(--card); }
.pp-menu-btn .caret { font-size: 0.9em; font-weight: 700; }

.pp-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(28, 35, 51, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.pp-modal-overlay[hidden] { display: none; }
body.pp-modal-open { overflow: hidden; }
.pp-modal {
  background: var(--card);
  border: 1.5px solid var(--navy);
  border-radius: 14px;
  box-shadow: 5px 5px 0 var(--brick-soft);
  width: 100%;
  max-width: 360px;
  max-height: 80vh;
  overflow: auto;
  padding: 14px 16px 16px;
}
.pp-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 8px;
  margin-bottom: 10px;
}
.pp-modal-title {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
}
.pp-modal-close {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  line-height: 1;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--ink-soft);
  padding: 2px 9px 4px;
  cursor: pointer;
}
.pp-modal-close:hover { border-color: var(--brick); color: var(--brick); }
.pp-modal-links { display: flex; flex-direction: column; gap: 4px; }
.pp-modal-links a {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
}
.pp-modal-links a:hover { border-color: var(--brick); color: var(--brick); background: var(--brick-soft); }

/* ---------- images on speaking cards ---------- */
.q-img {
  margin: 0 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  padding: 8px;
  max-width: 420px;
}
.q-img img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.q-img figcaption {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  color: var(--ink-faint);
  padding: 6px 2px 0;
}

/* ---------- caption text inside popups ---------- */
.pp-modal-note {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.pp-modal-note a {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  color: var(--brick);
  text-decoration: none;
  border-bottom: 2px solid var(--brick-soft);
  white-space: nowrap;
}
.pp-modal-note a:hover { border-bottom-color: var(--brick); }

/* ---------- search-term highlighting in the question bank ---------- */
.qcard mark {
  background: var(--brick-soft);
  color: inherit;
  padding: 0 1px;
  border-radius: 3px;
  box-shadow: 0 1.5px 0 var(--brick);
}
/* ---------- featured "main" textbook card ---------- */
.book.main {
  position: relative;
  grid-column: 1 / -1;              /* stretches across the whole row */
  border: 2px dotted var(--brick);
  background: var(--card);
  box-shadow:
    0 0 0 4px rgba(240, 190, 60, 0.30),
    0 6px 22px rgba(240, 190, 60, 0.45);
  padding: 18px 20px;
  transform: rotate(-0.4deg);
}
.book.main b { font-size: 1.05rem; }
.book.main:hover {
  transform: rotate(-0.4deg) translateY(-2px);
  box-shadow:
    0 0 0 4px rgba(240, 190, 60, 0.40),
    0 10px 28px rgba(240, 190, 60, 0.55);
}
.book.main::after {
  content: "★";
  position: absolute;
  top: -10px;
  right: 14px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #7a5a00;
  background: rgba(240, 190, 60, 0.95);
  border-radius: 5px;
  padding: 2px 8px;
  transform: rotate(2deg);
}
@media (prefers-color-scheme: dark) {
  .book.main::after { color: #2a2000; }
}
/* ---------- mobile refinements ---------- */
/* grids can never be wider than the screen (stops sideways scroll on small phones) */
.pp-years  { grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); }
.book-grid { grid-template-columns: repeat(auto-fill, minmax(min(270px, 100%), 1fr)); }
.cards     { grid-template-columns: repeat(auto-fill, minmax(min(230px, 100%), 1fr)); }

/* bigger tap targets on touch screens */
@media (pointer: coarse) {
  .pp-btn { padding: 5px 13px; }
  .chip { padding: 6px 15px; }
  .pp-modal-links a { padding: 12px 14px; }
}

/* stop iPhones auto-zooming when a search box or dropdown is tapped */
@media (max-width: 560px) {
  .qb-search, .qb-select { font-size: 16px; }
}
/* ---------- tighter gap before the footer ---------- */
main { padding-bottom: 0px; }
footer.site { margin-top: 0px; }
.pp-years { margin-bottom: 16px; }
/* ---------- sort toggle on the past-paper page ---------- */
/* ---------- sort toggle on the past-paper page ---------- */
.chip.sort-toggle {
  margin-left: 0;
  margin-right: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1.5px solid var(--navy-dark);
  background: var(--navy-dark);
  color: var(--paper);
  transform: rotate(-1.5deg);
  box-shadow: 2px 2px 0 var(--brick-soft);
}
.chip.sort-toggle:hover {
  background: var(--navy-dark);
  border-color: var(--navy-dark);
  color: var(--paper);
  transform: rotate(-1.5deg) translateY(-1px);
}
@media (prefers-color-scheme: dark) {
  .chip.sort-toggle, .chip.sort-toggle:hover { color: #10141f; }
}
/* ---------- popup triggers that look like normal links ---------- */
.pp-menu-btn.pp-link-menu {
  border: none;
  background: none;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}
.pp-menu-btn.pp-link-menu:hover { color: var(--brick); }
.pp-menu-btn.pp-link-menu .caret { font-size: 0.85em; }
/* ---------- equal-height buttons whether link or popup-button ---------- */
.pp-btn { line-height: 1.6; }
.qlinks, .pp-btns { align-items: center; }
.pp-menu, .pp-menu-btn { vertical-align: baseline; }
/* ---------- subtopic accent in the question bank ---------- */
.qmeta .subtopic {
  color: var(--brick);
  font-weight: 700;
}
/* ---------- collapsible "More filters" panel ---------- */
.qb-more-toggle { border-style: dashed; }
.qb-more-toggle .qb-more-caret {
  display: inline-block;
  font-weight: 700;
  transition: transform 0.25s ease;
}
.qb-more-toggle[aria-expanded="true"] .qb-more-caret { transform: rotate(45deg); }
.qb-more-toggle.qb-active { border-color: var(--brick); color: var(--brick); }
.qb-more {
  flex-basis: 100%;
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s ease;
}
.qb-more.open { grid-template-rows: 1fr; }
.qb-more-inner {
  overflow: hidden;
  min-height: 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.qb-more.open .qb-more-inner { padding-top: 2px; }
@media (prefers-reduced-motion: reduce) {
  .qb-more, .qb-more-toggle .qb-more-caret { transition: none; }
}
/* ---------- speaking cards: inline bullets + Questions heading ---------- */
.qtext .q-bullets { margin: 8px 0; }
.q-heading {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 12px 0 4px;
}
/* ---------- hidden-image placeholder on speaking cards ---------- */
.q-img-off {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: left;
  color: var(--ink-soft);
  background: transparent;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  margin: 0 0 12px;
  max-width: 420px;
  cursor: pointer;
}
.q-img-off:hover { border-color: var(--brick); color: var(--brick); }
/* ============================================================
   Sticky header and filter bars
   ============================================================ */
:root { --header-h: 64px; --chips-h: 0px; }
html { scroll-padding-top: calc(var(--header-h) + var(--chips-h) + 10px); }

header.site {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
}
#mode-chips {
  position: sticky;
  top: var(--header-h);
  z-index: 30;
  background: var(--paper);
}
#subject-chips, #res-chips, .filters {
  position: sticky;
  top: calc(var(--header-h) + var(--chips-h));
  z-index: 20;
  background: var(--paper);
}

/* backgrounds that span the full window width, not just the 1000px column,
   so page content can't peek out at the sides while scrolling */
header.site::before,
#mode-chips::before,
#subject-chips::before,
#res-chips::before,
.filters::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  top: -8px;
  bottom: -8px;
  background: var(--paper);
  z-index: -1;
}
header.site::before { top: 0; bottom: -4px; }
.filters::before, #subject-chips::before, #res-chips::before {
  border-bottom: 1px solid var(--line);
}
#mode-chips { padding-top: 4px; }
#subject-chips, #res-chips, #mode-chips { padding-bottom: 6px; }
.filters { padding-bottom: 8px; }

@media (max-height: 480px) {
  header.site, #mode-chips, #subject-chips, #res-chips, .filters { position: static; }
  header.site::before, #mode-chips::before, #subject-chips::before,
  #res-chips::before, .filters::before { display: none; }
}
/* breathing room above and below the sticky chip rows */
#subject-chips, #res-chips, #mode-chips { padding-top: 14px; padding-bottom: 8px; }
#subject-chips, #res-chips { margin-top: 0; }
/* stop the chips bar's background painting over the search row below it */
#mode-chips::before { bottom: 0; }
.filters { padding-top: 10px; }
/* room for focus outlines inside the animated "More filters" panel
   (it clips its contents to animate, which was cropping the ring) */
.qb-more-inner { padding: 0; }
.qb-more.open .qb-more-inner { padding: 6px; }
.qb-more { margin-left: -6px; margin-right: -6px; }
/* ---------- textbook covers, contained inside the card ---------- */
.book {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.book-body { flex: 1 1 auto; min-width: 0; }
.book .cover {
  flex: 0 0 auto;
  width: 82px;
  height: auto;
  border-radius: 3px;
  background: var(--paper);
  transform: rotate(1.5deg);
  transform-origin: center;
  box-shadow:
    0 5px 12px rgba(28, 35, 51, 0.26),
    0 1px 0 rgba(28, 35, 51, 0.16);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.book:hover .cover {
  transform: rotate(0deg) scale(1.03);
  box-shadow: 0 8px 18px rgba(28, 35, 51, 0.32);
}
.book.main .cover { width: 104px; }
@media (max-width: 560px) {
  .book .cover { width: 64px; }
  .book.main .cover { width: 74px; }
}
@media (prefers-reduced-motion: reduce) {
  .book .cover, .book:hover .cover { transition: none; transform: rotate(1.5deg); }
}
/* stop book-card buttons stretching when one becomes a popup trigger */
.book .links { align-items: center; }
/* keep covers inside their card (cancels any leftover poke-out margins) */
.book .cover, .book.main .cover { margin: 0; }
.book-grid { row-gap: 14px; margin-top: 14px; }
@media (max-width: 560px) {
  .book .cover, .book.main .cover { margin: 0; }
}
/* FINAL cover styling — overrides all earlier cover rules */
.book-grid { row-gap: 14px; margin-top: 14px; }
.book {
  display: block;
  position: relative;
  padding-right: 106px;
  min-height: 140px;
}
.book .cover {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 78px;
  height: auto;
  margin: 0;
  border-radius: 3px;
  box-shadow: 0 5px 12px rgba(28, 35, 51, 0.26);
  transform: rotate(1.5deg);
  transition: transform 0.16s ease;
}
.book:hover .cover { transform: rotate(0deg) scale(1.03); }
.book.main { padding-right: 130px; }
.book.main .cover { width: 100px; }
@media (max-width: 560px) {
  .book { padding-right: 84px; min-height: 120px; }
  .book .cover { width: 62px; top: 12px; right: 12px; }
  .book.main { padding-right: 96px; }
  .book.main .cover { width: 72px; }
}
/* ============================================================
   Question tools: done ticks, copy link, random, flash
   ============================================================ */
.qtools {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px dashed var(--line);
}
.q-done {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
}
.q-done input { width: 15px; height: 15px; accent-color: var(--navy); cursor: pointer; }
.q-copy {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-faint);
  background: none;
  border: none;
  padding: 2px 4px;
  cursor: pointer;
}
.q-copy:hover { color: var(--brick); }
.q-copy.ok { color: var(--navy); }
.qcard.is-done {
  border-color: var(--navy);
  background: linear-gradient(var(--card), var(--card)) padding-box;
  opacity: 0.72;
}
.qcard.is-done .qnum::after {
  content: " ✓";
  color: var(--navy);
}
.qcard.is-done:hover { opacity: 1; }
/* the done-counter is an outline chip, never navy-on-navy */
.chip.qb-count, .chip.qb-count.on {
  background: transparent;
  border: 1.5px solid var(--navy);
  color: var(--navy);
}
.chip.qb-count:hover { border-color: var(--brick); color: var(--brick); }

/* random + counter sit on their own row under the filters */
.qb-tools {
  flex-basis: 100%;
  display: flex;
  gap: 6px;
  align-items: center;
  padding-top: 2px;
}

@keyframes qflash {
  0%   { box-shadow: 0 0 0 0 var(--brick-soft); border-color: var(--brick); }
  35%  { box-shadow: 0 0 0 8px var(--brick-soft); border-color: var(--brick); }
  100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); }
}
.qcard-flash { animation: qflash 2s ease; border-color: var(--brick); }
@media (prefers-reduced-motion: reduce) {
  .qcard-flash { animation: none; border-color: var(--brick); }
}

/* ============================================================
   Timed practice
   ============================================================ */
.pr-card {
  border: 1.5px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  padding: 20px 22px 22px;
  max-width: 640px;
  box-shadow: 4px 4px 0 var(--brick-soft);
}
.pr-card-done { max-width: 560px; }
.pr-step {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--ink);
  margin: 18px 0 8px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.pr-step:first-child { margin-top: 0; }
.pr-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.pr-card .chips { margin: 0 0 12px; padding: 0; position: static; background: none; }
.pr-card .chips::before { display: none; }
.pr-fields { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.pr-field { display: flex; flex-direction: column; gap: 4px; flex: 1 1 150px; }
.pr-field > span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.pr-field .qb-select { width: 100%; max-width: none; }
.pr-extras {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin: 4px 0 0;
  min-height: 1.2em;
}
.pr-extras .stamp { margin-right: 6px; }
.pr-custom { font-family: "Space Grotesk", sans-serif; font-size: 0.78rem; color: var(--ink-soft); }
.pr-custom input {
  width: 62px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  padding: 5px 8px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
}
.pr-start { font-size: 0.92rem; padding: 11px 24px; border: none; cursor: pointer; }
#pr-setup .status { margin: 6px 0 12px; }

/* running */
.pr-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  background: var(--card);
  border: 1.5px solid var(--navy);
  border-radius: 12px;
  padding: 10px 14px 12px;
  margin: 6px 0 14px;
  box-shadow: 3px 3px 0 var(--brick-soft);
}
.pr-clock {
  font-family: "JetBrains Mono", monospace;
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}
.pr-clock.low { color: var(--brick); }
.pr-clock.out { color: var(--brick); text-decoration: line-through; }
.pr-what { font-family: "Space Grotesk", sans-serif; font-size: 0.78rem; color: var(--ink-soft); }
.pr-controls { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.pr-controls .chip { text-decoration: none; cursor: pointer; }
.pr-progress {
  flex-basis: 100%;
  height: 4px;
  border-radius: 3px;
  background: var(--line);
  overflow: hidden;
}
.pr-progress-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--navy);
  transition: width 1s linear;
}
.pr-progress-fill.low { background: var(--brick); }

/* paper (and insert) panes */
.pr-frame-wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  height: 78vh;
  min-height: 420px;
}
.pr-frame-wrap.split { grid-template-columns: 1fr 1fr; }
.pr-pane {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
  min-width: 0;
}
.pr-pane[hidden] { display: none; }
.pr-pane iframe { width: 100%; height: 100%; border: 0; display: block; background: var(--card); }
.pr-pane-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--navy);
  color: var(--paper);
  border-radius: 5px;
  padding: 2px 8px;
  opacity: 0.85;
}
.pr-cover {
  position: absolute;
  inset: 0;
  z-index: 5;
  background: rgba(28, 35, 51, 0.88);
  backdrop-filter: blur(7px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 20px;
  border-radius: 12px;
}
.pr-cover[hidden] { display: none; }
.pr-cover-title { font-family: "Space Grotesk", sans-serif; font-size: 1.6rem; font-weight: 700; margin: 0 0 6px; }
.pr-cover-sub { font-size: 0.85rem; opacity: 0.85; margin: 0 0 16px; }
#pr-done-choices { gap: 10px; align-items: center; }
#pr-finished { border: none; cursor: pointer; }

@media (max-width: 900px) {
  .pr-frame-wrap.split { grid-template-columns: 1fr; height: auto; }
  .pr-frame-wrap.split .pr-pane { height: 60vh; }
}
@media (max-width: 560px) {
  .pr-frame-wrap { height: 64vh; }
  .pr-clock { font-size: 1.35rem; }
  .pr-controls { margin-left: 0; }
  .pr-card { padding: 16px 16px 18px; }
}
/* practice: nothing to sit yet */
.pr-start:disabled { opacity: 0.45; cursor: not-allowed; }
.qb-select:disabled { opacity: 0.5; }