/* UPSC Prelims PYQ practice: clarityupsc.com/upsc-prelims-pyq/ and the web app.
   Editorial ink system shared with /daily-quiz/: paper ground, ink actions,
   one terracotta accent. Exam questions in a serif, everything else in Inter. */

.pyq-body, .pyq-scope {
  --p-paper: #FAF7F1; --p-surface: #FFFFFF; --p-surface2: #F3EEE5; --p-sheet: #F7F2E8;
  --p-ink: #17130F; --p-ink2: #5B554D; --p-muted: #8A847B;
  --p-line: rgba(23, 19, 15, 0.12); --p-line2: rgba(23, 19, 15, 0.22); --p-line-strong: rgba(23, 19, 15, 0.42);
  --p-accent: #C85C2A; --p-accent-ink: #8A3D15; --p-accent-soft: rgba(200, 92, 42, 0.10);
  --p-on-ink: #FAF7F1;
  --p-right: #15803D; --p-right-bg: #ECFDF3; --p-right-line: #A7DDBC;
  --p-wrong: #B91C1C; --p-wrong-bg: #FDF0EF; --p-wrong-line: #F0BDB8;
  --p-sol-bg: #F4F7FD; --p-sol-ink: #22314D;
  --p-focus: #2563EB;
  --p-shadow: 0 1px 2px rgba(23, 19, 15, 0.05), 0 4px 14px rgba(23, 19, 15, 0.05);
  --p-shadow-up: 0 2px 4px rgba(23, 19, 15, 0.06), 0 10px 24px rgba(23, 19, 15, 0.08);
  --p-serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --p-sans: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --p-display: "Inter Tight", Inter, system-ui, sans-serif;
}
/* Dark: the website follows the OS unless the page pins data-theme; the web app
   (.pyq-app) follows its own html.dark class only. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .pyq-body, :root:not([data-theme="light"]) .pyq-scope:not(.pyq-app) {
    --p-paper: #13110E; --p-surface: #1C1915; --p-surface2: #26211B; --p-sheet: #191612;
    --p-ink: #F3EEE6; --p-ink2: #C9C2B8; --p-muted: #9A938A;
    --p-line: rgba(255, 255, 255, 0.11); --p-line2: rgba(255, 255, 255, 0.2); --p-line-strong: rgba(255, 255, 255, 0.4);
    --p-accent: #E0743F; --p-accent-ink: #F0A377; --p-accent-soft: rgba(224, 116, 63, 0.14);
    --p-on-ink: #13110E;
    --p-right: #6EE7A0; --p-right-bg: #12301F; --p-right-line: #2C6B45;
    --p-wrong: #F59E93; --p-wrong-bg: #361C1A; --p-wrong-line: #7A3A35;
    --p-sol-bg: #1C2431; --p-sol-ink: #D5DEEE;
    --p-shadow: 0 1px 2px rgba(0, 0, 0, 0.3); --p-shadow-up: 0 8px 22px rgba(0, 0, 0, 0.4);
  }
}
:root[data-theme="dark"] .pyq-body, :root[data-theme="dark"] .pyq-scope:not(.pyq-app), html.dark .pyq-scope.pyq-app {
    --p-paper: #13110E; --p-surface: #1C1915; --p-surface2: #26211B; --p-sheet: #191612;
    --p-ink: #F3EEE6; --p-ink2: #C9C2B8; --p-muted: #9A938A;
    --p-line: rgba(255, 255, 255, 0.11); --p-line2: rgba(255, 255, 255, 0.2); --p-line-strong: rgba(255, 255, 255, 0.4);
    --p-accent: #E0743F; --p-accent-ink: #F0A377; --p-accent-soft: rgba(224, 116, 63, 0.14);
    --p-on-ink: #13110E;
    --p-right: #6EE7A0; --p-right-bg: #12301F; --p-right-line: #2C6B45;
    --p-wrong: #F59E93; --p-wrong-bg: #361C1A; --p-wrong-line: #7A3A35;
    --p-sol-bg: #1C2431; --p-sol-ink: #D5DEEE;
    --p-shadow: 0 1px 2px rgba(0, 0, 0, 0.3); --p-shadow-up: 0 8px 22px rgba(0, 0, 0, 0.4);
}

/* the page carries its own sticky action bar; the site-wide app bar would sit on top of it */
.pyq-body .clarity-mobile-sticky-cta { display: none !important; }
.pyq-body { background: var(--p-paper); color: var(--p-ink); font-family: var(--p-sans); -webkit-font-smoothing: antialiased; }
.pyq-main { padding-top: 8px; }
.pyq-shell { max-width: 880px; margin: 0 auto 110px; padding: 0 20px; }
.pyq-scope { background: var(--p-paper); color: var(--p-ink); font-family: var(--p-sans); -webkit-font-smoothing: antialiased; min-height: 100%; }
:where(.pyq-scope, .pyq-shell, .pyq-quiz) *, :where(.pyq-scope, .pyq-shell, .pyq-quiz) *::before, :where(.pyq-scope, .pyq-shell, .pyq-quiz) *::after { box-sizing: border-box; }
:where(.pyq-scope, .pyq-shell, .pyq-quiz) a { color: inherit; }
:where(.pyq-scope, .pyq-shell, .pyq-quiz) :focus-visible { outline: 2.5px solid var(--p-focus); outline-offset: 2px; }
:where(.pyq-scope, .pyq-shell, .pyq-quiz) button { font: inherit; color: inherit; -webkit-tap-highlight-color: transparent; }

/* breadcrumbs */
.pyq-crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 0; padding: 0; font-size: 0.82rem; color: var(--p-muted); }
.pyq-crumbs li + li::before { content: "/"; margin-right: 6px; opacity: 0.6; }
.pyq-crumbs a { color: var(--p-ink2); text-decoration: none; }
.pyq-crumbs a:hover { color: var(--p-accent-ink); text-decoration: underline; }

/* hero */
.pyq-hero { padding: 18px 0 8px; }
.pyq-hero + #pyq-continue:empty + .pyq-h2 { margin-top: 18px; } /* title, then the content (9 Nov page-top rule) */
.pyq-hero-sm { padding-bottom: 6px; }
.pyq-kicker { margin: 0 0 12px; font-size: 0.74rem; font-weight: 800; letter-spacing: 0.13em; text-transform: uppercase; color: var(--p-accent-ink); }
.pyq-title { margin: 0; font-family: var(--p-display); font-size: clamp(1.75rem, 4.6vw, 2.25rem); font-weight: 800; line-height: 1.04; letter-spacing: -0.025em; color: var(--p-ink); }
.pyq-title-sub { color: var(--p-muted); font-weight: 700; }
.pyq-sub { margin: 0 0 14px; font-size: 1.05rem; line-height: 1.6; color: var(--p-ink2); max-width: 60ch; }
.pyq-sub a { color: var(--p-accent-ink); }
.pyq-meta { margin: 0; font-size: 0.92rem; color: var(--p-muted); font-variant-numeric: tabular-nums; }
.pyq-meta b { color: var(--p-ink); font-weight: 700; }
.pyq-h2 { margin: 40px 0 14px; color: var(--p-ink); font-family: var(--p-display); font-size: 1.32rem; font-weight: 800; letter-spacing: -0.015em; }

/* continue card */
.pyq-cont { display: flex; align-items: center; gap: 14px; width: 100%; margin: 18px 0 4px; padding: 16px 18px; border: 0; border-radius: 18px;
  background: var(--p-ink); color: var(--p-on-ink); text-align: left; cursor: pointer; box-shadow: var(--p-shadow-up); transition: transform .16s ease; }
.pyq-cont:hover { transform: translateY(-1px); }
.pyq-cont:active { transform: scale(.99); }
.pyq-cont-k { display: block; font-size: 0.7rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; opacity: .7; }
.pyq-cont-t { display: block; margin-top: 3px; font-size: 1.05rem; font-weight: 700; }
.pyq-cont-m { display: block; margin-top: 2px; font-size: .86rem; opacity: .75; font-variant-numeric: tabular-nums; }
.pyq-cont-x { flex: 1; min-width: 0; }
.pyq-cont .pyq-arrow { flex: none; transition: transform .16s ease; }
.pyq-cont:hover .pyq-arrow { transform: translateX(3px); }

/* ───────── choose panel ───────── */
.pyq-panel { margin-top: 18px; background: var(--p-surface); border: 1px solid var(--p-line); border-radius: 22px; padding: 22px 20px 0; box-shadow: var(--p-shadow); }
.pyq-step { display: flex; align-items: center; gap: 10px; margin: 6px 0 12px; }
.pyq-step + .pyq-years { margin-top: 0; }
.pyq-topics + .pyq-go, .pyq-years + .pyq-go { margin-top: 20px; }
.pyq-years + .pyq-step { margin-top: 26px; }
.pyq-step-n { width: 24px; height: 24px; border-radius: 999px; display: inline-grid; place-items: center; background: var(--p-accent-soft); color: var(--p-accent-ink); font-size: .78rem; font-weight: 800; flex: none; }
.pyq-step-h { margin: 0; color: var(--p-ink); font-family: var(--p-display); font-size: 1.06rem; font-weight: 800; letter-spacing: -0.01em; }
.pyq-step-hint { margin-left: auto; font-size: .8rem; color: var(--p-muted); }

/* year ranges: a select-all row, then one checkbox tile per range */
.pyq-yall { margin-bottom: 8px; }
.pyq-tp-sub { margin-left: 6px; font-weight: 500; font-size: .84rem; color: var(--p-muted); font-variant-numeric: tabular-nums; }
.pyq-years { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
@media (min-width: 520px) { .pyq-years { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 760px) { .pyq-years { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
.pyq-yt { display: flex; flex-direction: column; gap: 2px; min-height: 92px; padding: 12px 12px 11px 14px; border-radius: 14px; border: 1.5px solid var(--p-line);
  background: var(--p-surface); color: var(--p-ink); text-align: left; cursor: pointer; -webkit-user-select: none; user-select: none;
  transition: border-color .15s ease, background .15s ease, transform .12s ease; }
.pyq-yt:hover:not([disabled]) { border-color: var(--p-line-strong); background: var(--p-paper); }
.pyq-yt:active:not([disabled]) { transform: scale(.975); }
.pyq-yt[disabled] { opacity: .38; cursor: not-allowed; }
.pyq-yt-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.pyq-yt-l { font-family: var(--p-display); font-weight: 800; font-size: .98rem; letter-spacing: -0.01em; white-space: nowrap; font-variant-numeric: tabular-nums; }
.pyq-yt-s { font-size: .76rem; color: var(--p-muted); }
.pyq-yt-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 8px; }
.pyq-yt-n { font-size: .8rem; font-weight: 700; color: var(--p-ink2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.pyq-yt-n::after { content: " Qs"; font-weight: 500; opacity: .8; }
.pyq-spark { display: flex; align-items: flex-end; gap: 2px; height: 20px; flex: 1; max-width: 70px; min-width: 0; overflow: hidden; }
.pyq-spark.is-dense { gap: 1px; }
.pyq-spark i { flex: 1 1 0; min-width: 1px; max-width: 9px; border-radius: 2px; background: var(--p-line-strong); opacity: .55; }
.pyq-yt.is-on { border-color: var(--p-ink); background: var(--p-accent-soft); }
.pyq-yt.is-on .pyq-spark i { background: var(--p-accent); opacity: .7; }
.pyq-yt.is-on .pyq-cb { background: var(--p-accent); border-color: var(--p-accent); color: #fff; }

/* hero badge */
.pyq-badge-x { display: inline-flex; align-items: center; gap: 9px; margin: 6px 0 0; padding: 6px 14px 6px 6px; border-radius: 999px;
  background: var(--p-right-bg); color: var(--p-right); border: 1px solid var(--p-right-line); font-size: .9rem; font-weight: 700; letter-spacing: -0.005em; }
.pyq-badge-i { width: 24px; height: 24px; border-radius: 999px; display: grid; place-items: center; background: var(--p-right); color: #fff; flex: none; }
:root[data-theme="dark"] .pyq-badge-i, html.dark .pyq-app .pyq-badge-i { color: #12301F; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .pyq-body .pyq-badge-i, :root:not([data-theme="light"]) .pyq-scope:not(.pyq-app) .pyq-badge-i { color: #12301F; } }

/* topic cards */
.pyq-topics { display: grid; grid-template-columns: 1fr; gap: 8px; }
@media (min-width: 640px) { .pyq-topics { grid-template-columns: 1fr 1fr; } }
.pyq-tp { position: relative; display: flex; align-items: center; gap: 12px; min-height: 56px; padding: 10px 14px; border-radius: 14px;
  border: 1.5px solid var(--p-line); background: var(--p-surface); text-decoration: none; color: var(--p-ink); cursor: pointer; overflow: hidden;
  transition: border-color .15s ease, background .15s ease, transform .12s ease; -webkit-user-select: none; user-select: none; }
.pyq-tp:hover { border-color: var(--p-line-strong); background: var(--p-paper); }
.pyq-tp:active { transform: scale(.985); }
.pyq-tp-all { grid-column: 1 / -1; }
button.pyq-tp { width: 100%; text-align: left; font: inherit; }
.pyq-yall .pyq-tp-l { font-weight: 800; }
.pyq-tp-all .pyq-tp-l { font-weight: 800; }
.pyq-cb { flex: none; width: 22px; height: 22px; border-radius: 7px; border: 1.75px solid var(--p-line-strong); display: grid; place-items: center;
  color: transparent; background: var(--p-surface); transition: all .16s cubic-bezier(.2, .8, .2, 1.2); }
.pyq-cb .pk { stroke-dasharray: 16; stroke-dashoffset: 16; transition: stroke-dashoffset .22s ease .04s; }
.is-on .pyq-cb .pk { stroke-dashoffset: 0; }
.pyq-cb .pd { display: none; }
.is-mixed .pyq-cb { background: var(--p-accent); border-color: var(--p-accent); color: #fff; }
.is-mixed .pyq-cb .pk { display: none; }
.is-mixed .pyq-cb .pd { display: inline; }
.pyq-tp.is-mixed { border-color: var(--p-line-strong); }
.pyq-tp-l { flex: 1; min-width: 0; font-size: .96rem; font-weight: 600; line-height: 1.3; }
.pyq-tp-n { flex: none; min-width: 34px; text-align: center; padding: 3px 8px; border-radius: 999px; background: var(--p-surface2); color: var(--p-ink2);
  font-size: .78rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.pyq-tp.is-on { border-color: var(--p-ink); background: var(--p-accent-soft); }
.pyq-tp.is-on .pyq-cb { background: var(--p-accent); border-color: var(--p-accent); color: #fff; transform: scale(1.04); }
.pyq-tp.is-on .pyq-tp-n { background: var(--p-ink); color: var(--p-on-ink); }
.pyq-tp.is-empty { opacity: .45; }
.pyq-tp-done { position: absolute; left: 0; bottom: 0; height: 3px; background: var(--p-right); opacity: .7; border-radius: 0 3px 0 0; }

/* start bar */
.pyq-go { position: sticky; bottom: 0; z-index: 4; display: flex; align-items: center; gap: 14px; margin: 20px -20px 0; padding: 14px 20px calc(14px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--p-surface) 88%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-top: 1px solid var(--p-line); border-radius: 0 0 22px 22px; }
.pyq-go-sum { flex: 1; min-width: 0; margin: 0; font-size: .86rem; color: var(--p-ink2); line-height: 1.35; }
/* Primary action: warm terracotta, raised, with a play disc that says "go".
   It nudges (two soft pulses) whenever the choice changes, then rests. */
.pyq-start { position: relative; overflow: hidden; isolation: isolate; display: inline-flex; align-items: center; gap: 12px; min-height: 58px;
  padding: 0 20px 0 9px; border: 0; border-radius: 999px; cursor: pointer; white-space: nowrap;
  font-family: var(--p-display); font-weight: 800; font-size: 1.06rem; letter-spacing: -0.005em; color: #fff;
  background: linear-gradient(180deg, #E07039 0%, #C85C2A 55%, #B44E1E 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .32), inset 0 -2px 0 rgba(0, 0, 0, .14), 0 2px 4px rgba(150, 60, 20, .25), 0 10px 24px rgba(200, 92, 42, .34);
  transition: transform .14s ease, box-shadow .14s ease, filter .14s ease; }
.pyq-start::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, .28) 50%, transparent 65%); transform: translateX(-120%); }
.pyq-start:hover:not([disabled]) { transform: translateY(-2px); filter: brightness(1.05) saturate(1.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), inset 0 -2px 0 rgba(0, 0, 0, .14), 0 4px 8px rgba(150, 60, 20, .25), 0 16px 32px rgba(200, 92, 42, .42); }
.pyq-start:hover:not([disabled])::after { transform: translateX(120%); transition: transform .7s ease; }
.pyq-start:active:not([disabled]) { transform: translateY(1px) scale(.985); filter: brightness(.96);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, .22), 0 1px 2px rgba(150, 60, 20, .3); }
.pyq-start:focus-visible { outline: 3px solid var(--p-focus); outline-offset: 3px; }
.pyq-go-ic { flex: none; width: 40px; height: 40px; border-radius: 999px; display: grid; place-items: center; background: #fff; color: #C85C2A;
  box-shadow: 0 1px 3px rgba(120, 40, 10, .3); transition: transform .18s cubic-bezier(.2, .8, .2, 1.4); }
.pyq-go-ic svg { margin-left: 2px; }
.pyq-start:hover:not([disabled]) .pyq-go-ic { transform: scale(1.08); }
.pyq-go-t { flex: 1; text-align: left; }
.pyq-start .pyq-arrow { flex: none; transition: transform .16s ease; }
.pyq-start:hover:not([disabled]) .pyq-arrow { transform: translateX(4px); }
.pyq-pill { padding: 4px 10px; border-radius: 999px; background: rgba(255, 255, 255, .22); color: #fff; font-family: var(--p-sans); font-size: .8rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.pyq-start[disabled] { cursor: not-allowed; color: var(--p-muted); background: var(--p-surface2); box-shadow: inset 0 0 0 1.5px var(--p-line2); filter: none; }
.pyq-start[disabled] .pyq-go-ic { background: var(--p-line); color: var(--p-muted); box-shadow: none; }
.pyq-start[disabled] .pyq-pill { background: var(--p-line); color: var(--p-muted); }
.pyq-start.is-nudge:not([disabled]) { animation: pyq-nudge 1.5s ease-out 2; }
@keyframes pyq-nudge {
  0% { box-shadow: inset 0 1px 0 rgba(255,255,255,.32), inset 0 -2px 0 rgba(0,0,0,.14), 0 10px 24px rgba(200,92,42,.34), 0 0 0 0 rgba(224,112,57,.55); }
  70% { box-shadow: inset 0 1px 0 rgba(255,255,255,.32), inset 0 -2px 0 rgba(0,0,0,.14), 0 10px 24px rgba(200,92,42,.34), 0 0 0 14px rgba(224,112,57,0); }
  100% { box-shadow: inset 0 1px 0 rgba(255,255,255,.32), inset 0 -2px 0 rgba(0,0,0,.14), 0 10px 24px rgba(200,92,42,.34), 0 0 0 0 rgba(224,112,57,0); }
}
/* the in-quiz "Next" uses the same button without the play disc */
.pyq-qnav .pyq-start, .pyq-done .pyq-start { padding: 0 22px; }
.pyq-year-go { margin-top: 20px; }
@media (max-width: 560px) {
  .pyq-panel { padding: 18px 14px 0; border-radius: 18px; margin-left: -6px; margin-right: -6px; }
  .pyq-go { margin: 18px -14px 0; padding-left: 14px; padding-right: 14px; flex-wrap: wrap; border-radius: 0 0 18px 18px; }
  .pyq-go-sum { flex-basis: 100%; }
  .pyq-go .pyq-start, .pyq-year-go .pyq-start { width: 100%; }
}

/* ───────── hub ───────── */
.pyq-subjects { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 640px) { .pyq-subjects { grid-template-columns: 1fr 1fr; } }
.pyq-sc { display: flex; align-items: center; gap: 12px; padding: 16px 16px 16px 18px; min-height: 76px; border-radius: 16px; border: 1px solid var(--p-line);
  background: var(--p-surface); text-decoration: none; box-shadow: var(--p-shadow); transition: transform .14s ease, border-color .14s ease, box-shadow .14s ease; }
.pyq-sc:hover { transform: translateY(-2px); border-color: var(--p-line-strong); box-shadow: var(--p-shadow-up); }
.pyq-sc-main { flex: 1; min-width: 0; }
.pyq-sc-name { display: block; font-family: var(--p-display); font-weight: 800; font-size: 1.08rem; letter-spacing: -0.01em; }
.pyq-sc-meta { display: block; margin-top: 3px; font-size: .84rem; color: var(--p-muted); font-variant-numeric: tabular-nums; }
.pyq-sc-bar { display: block; height: 4px; margin-top: 9px; border-radius: 999px; background: var(--p-surface2); overflow: hidden; }
.pyq-sc-bar[hidden] { display: none; }
.pyq-sc-bar i { display: block; height: 100%; background: var(--p-right); border-radius: 999px; }
.pyq-sc-go { flex: none; width: 36px; height: 36px; border-radius: 999px; display: grid; place-items: center; background: var(--p-surface2); color: var(--p-ink2); transition: background .14s, color .14s; }
.pyq-sc:hover .pyq-sc-go { background: var(--p-ink); color: var(--p-on-ink); }
.pyq-yeargrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 8px; }
.pyq-yl { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--p-line); background: var(--p-surface); text-decoration: none; transition: transform .14s, border-color .14s; }
.pyq-yl:hover { transform: translateY(-1px); border-color: var(--p-line-strong); }
.pyq-yl-y { font-family: var(--p-display); font-weight: 800; font-size: 1.1rem; font-variant-numeric: tabular-nums; }
.pyq-yl-n { font-size: .78rem; color: var(--p-muted); }
.pyq-about ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.pyq-about li { position: relative; padding-left: 22px; line-height: 1.6; color: var(--p-ink2); }
.pyq-about li::before { content: ""; position: absolute; left: 4px; top: .62em; width: 7px; height: 7px; border-radius: 2px; background: var(--p-accent); }
.pyq-about b { color: var(--p-ink); }
.pyq-note { margin-top: 20px; font-size: .86rem; color: var(--p-muted); line-height: 1.6; }
.pyq-note a { color: var(--p-accent-ink); }

/* ───────── question list ───────── */
.pyq-list-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.pyq-list-head .pyq-h2 { margin-bottom: 6px; }
.pyq-list-range { font-size: .84rem; color: var(--p-muted); font-variant-numeric: tabular-nums; }
.pyq-list-hint { margin: 0 0 16px; font-size: .88rem; color: var(--p-muted); }
.pyq-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.pyq-q-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; font-size: .8rem; }
.pyq-badge { display: inline-flex; align-items: center; height: 24px; padding: 0 9px; border-radius: 7px; background: var(--p-ink); color: var(--p-on-ink) !important; font-weight: 800; letter-spacing: .02em; text-decoration: none; font-variant-numeric: tabular-nums; }
.pyq-q-no { font-weight: 700; color: var(--p-ink2); }
.pyq-q-topic { color: var(--p-muted) !important; text-decoration: none; }
.pyq-q-topic:hover { color: var(--p-accent-ink) !important; text-decoration: underline; }
.pyq-flag { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 6px; background: var(--p-wrong-bg); color: var(--p-wrong); border: 1px solid var(--p-wrong-line); font-weight: 700; font-size: .74rem; }
.pyq-card { background: var(--p-surface); border: 1px solid var(--p-line); border-radius: 16px; padding: 18px; box-shadow: var(--p-shadow); }
.pyq-stem { font-family: var(--p-serif); font-size: 1.04rem; line-height: 1.62; color: var(--p-ink); margin-bottom: 14px; }
.pyq-stem p { margin: 0 0 8px; }
.pyq-stem p:last-child { margin-bottom: 0; }
.pyq-q, .pyq-card, .pyq-stem { min-width: 0; } /* grid items: let a wide table scroll inside its box */
.pyq-tbl { margin: 4px 0 12px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.pyq-tbl table { width: 100%; border-collapse: collapse; font-size: .92em; line-height: 1.45; }
.pyq-tbl th, .pyq-tbl td { padding: 7px 9px; border: 1px solid var(--p-line2); text-align: left; vertical-align: top; min-width: 3.2em; }
.pyq-tbl th { background: var(--p-surface2); font-family: var(--p-sans); font-size: .8em; font-weight: 700; line-height: 1.35; color: var(--p-ink2); }
@media (max-width: 600px) {
  .pyq-tbl.is-stack table, .pyq-tbl.is-stack tbody, .pyq-tbl.is-stack tr, .pyq-tbl.is-stack td { display: block; width: auto; }
  .pyq-tbl.is-stack thead { display: none; }
  .pyq-tbl.is-stack tr { margin: 0 0 8px; padding: 8px 12px 10px; border: 1px solid var(--p-line2); border-radius: 10px; }
  .pyq-tbl.is-stack td { padding: 3px 0 0; border: 0; min-width: 0; }
  .pyq-tbl.is-stack td:first-child { font-weight: 700; }
  .pyq-tbl.is-stack td:not(:first-child)[data-l]:not([data-l=""])::before { content: attr(data-l); display: block; margin-top: 4px;
    font-family: var(--p-sans); font-size: .74em; font-weight: 700; line-height: 1.3; color: var(--p-muted); }
}
.pyq-st { display: flex; gap: 8px; margin: 0 0 6px 6px; }
.pyq-st-n { flex: none; min-width: 1.4em; font-weight: 700; }
.pyq-opts { display: grid; gap: 8px; }
.pyq-opt { display: flex; align-items: flex-start; gap: 12px; width: 100%; min-height: 50px; padding: 11px 14px; border-radius: 12px; border: 1.5px solid var(--p-line);
  background: var(--p-surface); text-align: left; cursor: pointer; font-family: var(--p-serif); font-size: 1rem; line-height: 1.45; color: var(--p-ink);
  transition: border-color .14s ease, background .14s ease, transform .1s ease, opacity .2s ease; }
.pyq-opt:hover:not([disabled]) { border-color: var(--p-line-strong); background: var(--p-paper); }
.pyq-opt:active:not([disabled]) { transform: scale(.99); }
.pyq-opt[disabled] { cursor: default; }
.pyq-l { flex: none; width: 28px; height: 28px; margin-top: -2px; border-radius: 999px; display: grid; place-items: center; border: 1.5px solid var(--p-line-strong);
  font-family: var(--p-sans); font-size: .82rem; font-weight: 800; text-transform: lowercase; color: var(--p-ink2); transition: all .16s ease; }
.pyq-opt:hover:not([disabled]) .pyq-l { border-color: var(--p-ink); color: var(--p-ink); }
.pyq-ot { flex: 1; padding-top: 1px; }
.pyq-otag { flex: none; align-self: center; font-family: var(--p-sans); font-size: .76rem; font-weight: 800; }
.pyq-opt.is-busy { opacity: .7; }
.pyq-opt.is-right { border-color: var(--p-right-line); background: var(--p-right-bg); }
.pyq-opt.is-right .pyq-l { background: var(--p-right); border-color: var(--p-right); color: #fff; }
.pyq-opt.is-right .pyq-otag { color: var(--p-right); }
.pyq-opt.is-wrong { border-color: var(--p-wrong-line); background: var(--p-wrong-bg); }
.pyq-opt.is-wrong .pyq-l { background: var(--p-wrong); border-color: var(--p-wrong); color: #fff; }
.pyq-opt.is-wrong .pyq-otag { color: var(--p-wrong); }
.pyq-opts.is-done .pyq-opt:not(.is-right):not(.is-wrong) { opacity: .55; }

/* result */
.pyq-res:empty { display: none; }
.pyq-res { margin-top: 14px; animation: pyq-in .28s ease both; scroll-margin-top: 92px; }
@keyframes pyq-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.pyq-verdict { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px; font-weight: 800; font-size: .98rem; }
.pyq-verdict.ok { background: var(--p-right-bg); color: var(--p-right); }
.pyq-verdict.no { background: var(--p-wrong-bg); color: var(--p-wrong); }
.pyq-vic { width: 26px; height: 26px; border-radius: 999px; display: grid; place-items: center; flex: none; color: #fff; font-size: .9rem; }
.ok .pyq-vic { background: var(--p-right); } .no .pyq-vic { background: var(--p-wrong); }
.pyq-disc { margin-top: 12px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--p-wrong-line); border-left: 4px solid var(--p-wrong);
  background: var(--p-wrong-bg); color: var(--p-wrong); font-size: .93rem; line-height: 1.55; }
.pyq-sol { margin-top: 12px; padding: 14px 16px; border-radius: 12px; background: var(--p-sol-bg); color: var(--p-sol-ink); }
.pyq-sol .pyq-sol-h { margin: 0 0 8px; font-size: .7rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; opacity: .75; }
.pyq-sol p { margin: 0 0 9px; font-family: var(--p-serif); font-size: 1rem; line-height: 1.65; }
.pyq-sol p:last-child { margin-bottom: 0; }
.pyq-sol p.pyq-kp { font-family: var(--p-sans); font-size: .93rem; }
.pyq-why { margin-top: 12px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--p-line); background: var(--p-surface); font-size: .92rem; line-height: 1.55; color: var(--p-ink2); }
.pyq-why-k { display: block; margin-bottom: 4px; font-size: .7rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; color: var(--p-accent-ink); }
.pyq-err { margin-top: 12px; padding: 12px 14px; border-radius: 12px; background: var(--p-surface2); color: var(--p-ink2); font-size: .92rem; }
.pyq-err button { margin-left: 8px; border: 0; background: none; color: var(--p-accent-ink); font-weight: 700; cursor: pointer; text-decoration: underline; padding: 0; }

/* pager, chips */
.pyq-pager { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 30px 0 0; flex-wrap: wrap; }
.pyq-pg-nums { display: flex; gap: 4px; align-items: center; }
.pyq-pg, .pyq-pg-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 12px; border-radius: 999px;
  border: 1px solid var(--p-line2); background: var(--p-surface); text-decoration: none; font-weight: 700; font-size: .9rem; font-variant-numeric: tabular-nums; }
.pyq-pg:hover, .pyq-pg-btn:hover { border-color: var(--p-ink); }
.pyq-pg.is-on { background: var(--p-ink); color: var(--p-on-ink); border-color: var(--p-ink); }
.pyq-pg-btn.is-off { visibility: hidden; }
.pyq-pg-gap { color: var(--p-muted); padding: 0 4px; }
.pyq-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.pyq-chips-year { margin: 10px 0 6px; }
.pyq-chip { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--p-line2); background: var(--p-surface);
  text-decoration: none; font-size: .88rem; font-weight: 600; transition: border-color .14s, transform .12s; }
.pyq-chip:hover { border-color: var(--p-ink); transform: translateY(-1px); }
.pyq-chip span { color: var(--p-muted); font-weight: 700; font-variant-numeric: tabular-nums; }

/* ───────── focused practice (one question at a time) ───────── */
html.pyq-lock, html.pyq-lock body { overflow: hidden; }
.pyq-quiz { position: fixed; inset: 0; z-index: 1000; overflow-y: auto; overscroll-behavior: contain; background: var(--p-paper); color: var(--p-ink); font-family: var(--p-sans);
  -webkit-font-smoothing: antialiased; animation: pyq-fade .2s ease both; }
/* no transform on the overlay itself: it would trap the fixed bottom bar inside the scroll */
@keyframes pyq-fade { from { opacity: 0; } to { opacity: 1; } }
.pyq-quiz .pyq-qbody { animation: pyq-rise .26s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes pyq-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.pyq-qtop { position: sticky; top: 0; z-index: 3; background: color-mix(in srgb, var(--p-paper) 90%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-bottom: 1px solid var(--p-line); }
.pyq-qtop-in { max-width: 760px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 10px; min-height: 62px; }
.pyq-ib { flex: none; width: 42px; height: 42px; border-radius: 999px; border: 1px solid var(--p-line2); background: var(--p-surface); display: grid; place-items: center; cursor: pointer; transition: background .14s, border-color .14s; }
.pyq-ib:hover { border-color: var(--p-ink); }
.pyq-qtop-t { flex: 1; min-width: 0; }
.pyq-qtop-k { display: block; font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--p-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pyq-qtop-h { display: block; font-family: var(--p-display); font-weight: 800; font-size: 1.08rem; letter-spacing: -0.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pyq-score { display: flex; gap: 6px; flex: none; }
.pyq-score span { display: inline-flex; align-items: center; gap: 4px; height: 28px; padding: 0 9px; border-radius: 999px; font-size: .8rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.pyq-score .r { background: var(--p-right-bg); color: var(--p-right); }
.pyq-score .w { background: var(--p-wrong-bg); color: var(--p-wrong); }
.pyq-prog { height: 3px; background: var(--p-line); }
.pyq-prog i { display: block; height: 100%; background: var(--p-accent); transition: width .3s ease; }
.pyq-qbody { max-width: 760px; margin: 0 auto; padding: 18px 16px 130px; }
.pyq-qhead { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.pyq-yj { position: relative; display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 12px 0 14px; border-radius: 999px; background: var(--p-ink); color: var(--p-on-ink);
  font-size: .86rem; font-weight: 800; font-variant-numeric: tabular-nums; cursor: pointer; }
.pyq-yj select { position: absolute; inset: 0; opacity: 0; cursor: pointer; font-size: 16px; }
.pyq-yj:focus-within { outline: 2.5px solid var(--p-focus); outline-offset: 2px; }
.pyq-qpos { margin-left: auto; font-size: .84rem; font-weight: 700; color: var(--p-muted); font-variant-numeric: tabular-nums; }
.pyq-qtopic { margin: 10px 2px 0; font-size: .84rem; color: var(--p-muted); }
.pyq-quiz .pyq-card { padding: 20px; border-radius: 18px; }
.pyq-quiz .pyq-stem { font-size: 1.08rem; }
.pyq-qnav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 3; background: color-mix(in srgb, var(--p-paper) 92%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-top: 1px solid var(--p-line); }
.pyq-qnav-in { max-width: 760px; margin: 0 auto; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); display: flex; align-items: center; gap: 10px; }
.pyq-qnav .pyq-ib { width: 52px; height: 52px; }
.pyq-qnav .pyq-start { flex: 1; justify-content: center; }
.pyq-ib[disabled] { opacity: .35; cursor: default; }
.pyq-keys { display: none; text-align: center; margin-top: 18px; font-size: .78rem; color: var(--p-muted); }
.pyq-keys kbd { display: inline-block; min-width: 20px; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--p-line2); background: var(--p-surface); font: 700 .74rem var(--p-sans); }
@media (hover: hover) and (pointer: fine) { .pyq-keys { display: block; } }
.pyq-loading { padding: 70px 0; text-align: center; color: var(--p-muted); }
.pyq-skel { height: 14px; border-radius: 7px; background: linear-gradient(90deg, var(--p-surface2), var(--p-line), var(--p-surface2)); background-size: 200% 100%; animation: pyq-sh 1.2s linear infinite; margin: 10px 0; }
@keyframes pyq-sh { to { background-position: -200% 0; } }
.pyq-done { text-align: center; padding: 40px 10px; }
.pyq-done h2 { color: var(--p-ink); font-family: var(--p-display); font-size: 1.6rem; margin: 0 0 8px; }
.pyq-done p { color: var(--p-ink2); margin: 0 0 22px; }

/* SPA (web app): subject list, view header */
.pyq-spa { max-width: 760px; margin: 0 auto; padding: 0 16px 120px; }
.pyq-spa .pyq-hero { padding-top: 22px; }
.pyq-spa-back { display: inline-flex; align-items: center; gap: 6px; margin: 16px 0 0; padding: 8px 12px 8px 6px; border: 0; background: none; border-radius: 999px; font-weight: 700; color: var(--p-ink2); cursor: pointer; }
.pyq-spa-back:hover { background: var(--p-surface2); color: var(--p-ink); }

@media (prefers-reduced-motion: reduce) {
  .pyq-shell *, .pyq-quiz, .pyq-quiz *, .pyq-scope * { animation: none !important; transition: none !important; }
}

/* web app: its fonts come from next/font variables */
.pyq-app { --p-sans: var(--font-inter-tight, Inter), system-ui, -apple-system, sans-serif; --p-display: var(--font-inter-tight, "Inter Tight"), system-ui, sans-serif; }
.pyq-scope.pyq-app { min-height: 70vh; }
/* Web app: its main column is a scroll container, so a sticky bar would never stick. Pin the start bar
   above the app's fixed tab bar (h-16 + 1px border + safe area), on the same column as the tab bar
   (.app-shell-width: full width, 600px from 600px, 800px from 1025px). */
.pyq-app .pyq-go { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(65px + env(safe-area-inset-bottom)); z-index: 45;
  width: 100%; margin: 0; padding: 12px 16px; border-radius: 0; box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.06); }
@media (min-width: 600px) and (max-width: 1024px) { .pyq-app .pyq-go { max-width: 600px; } }
@media (min-width: 1025px) { .pyq-app .pyq-go { max-width: 800px; } }
.pyq-app .pyq-spa { padding-bottom: 160px; }
html.pyq-lock .pyq-app .pyq-go { display: none; }