/* JAMB Quest Study Mode. Uses the Quest tokens from shared/quest-theme.css (cream paper, navy, amber, hard offset shadow). */
*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; min-height: 100%; }
body { color: var(--ink-900, #12263f); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }
.sq-wrap { max-width: 720px; margin: 0 auto; padding: 0 16px 120px; }
.sq-kicker { font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-500, #6b7685); margin: 0 0 8px; font-weight: 700; }
.sq-h1 { font-family: var(--font-serif); font-size: clamp(28px, 8vw, 40px); line-height: 1.04; margin: 0 0 8px; letter-spacing: -.035em; font-weight: 800; }
.sq-h1 mark { background: var(--qa, #f5a62b); color: #12263f; padding: 0 6px; }
.sq-sub { margin: 0 0 16px; color: var(--ink-700, #3d4c60); line-height: 1.5; font-size: 15px; }
.sq-note { padding: 28px 8px; text-align: center; color: var(--ink-500, #6b7685); font-size: 14.5px; line-height: 1.5; }
.sq-card { background: var(--paper-100, #fcf9f1); border: 1.5px solid var(--qb, #12263f); box-shadow: 4px 4px 0 var(--qshadow, #dcd6c5); padding: 16px; margin: 0 0 18px; }
.sq-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 18px; border: 1.5px solid var(--qb, #12263f); background: var(--qn, #12263f); color: #fcf9f1; font: inherit; font-weight: 700; font-size: 15px; cursor: pointer; text-decoration: none; box-shadow: 3px 3px 0 var(--qa, #f5a62b); min-height: 46px; }
.sq-btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--qa, #f5a62b); }
.sq-btn.alt { background: var(--paper-100, #fcf9f1); color: var(--ink-900, #12263f); box-shadow: 3px 3px 0 var(--qshadow, #dcd6c5); }
.sq-btn.block { display: flex; width: 100%; }
.sq-btn[disabled] { opacity: .5; pointer-events: none; }
.sq-chip { display: inline-block; padding: 3px 8px; font-size: 11.5px; font-weight: 700; border: 1.5px solid var(--qb, #12263f); background: var(--paper-100, #fcf9f1); margin: 0 6px 6px 0; }
.sq-chip.on { background: var(--qa, #f5a62b); }
.sq-chip.ok { background: var(--green-100, #e2efe6); }
.sq-chip.dim { border-color: var(--line, #d9d2bf); color: var(--ink-500, #6b7685); }
.sq-bar { height: 8px; background: var(--line, #d9d2bf); overflow: hidden; }
.sq-bar > i { display: block; height: 100%; width: 0; background: var(--qa, #f5a62b); transition: width .3s; }

/* home */
.sq-home { padding-top: 40px; }
.sq-subject { font-family: var(--font-serif); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; font-weight: 800; margin: 26px 0 10px; display: flex; align-items: center; gap: 10px; }
.sq-subject::after { content: ""; flex: 1; height: 1.5px; background: var(--qb, #12263f); opacity: .2; }
.sq-ch { display: block; text-decoration: none; position: relative; }
.sq-ch .no { font-family: var(--font-serif); font-weight: 800; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-500, #6b7685); margin-bottom: 4px; }
.sq-ch h3 { margin: 0 0 6px; font-size: 21px; line-height: 1.1; }
.sq-ch p { margin: 0 0 10px; font-size: 14px; line-height: 1.45; color: var(--ink-700, #3d4c60); }
.sq-ch .go { position: absolute; right: 14px; top: 14px; font-weight: 800; }

/* chapter header + tabs */
.sq-top { padding: 14px 0 6px; }
.sq-back { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 14px; text-decoration: none; padding: 6px 0; color: var(--ink-700, #3d4c60); }
.sq-tabs { position: sticky; top: 0; z-index: 20; display: flex; background: var(--paper-50, #f7f2e6); border-bottom: 1.5px solid var(--qb, #12263f); margin: 0 -16px 18px; padding: 0 16px; padding-top: env(safe-area-inset-top, 0px); }
.sq-tab { flex: 1; padding: 12px 4px; text-align: center; font: inherit; font-weight: 700; font-size: 14px; background: none; border: 0; border-bottom: 4px solid transparent; color: var(--ink-500, #6b7685); cursor: pointer; }
.sq-tab.on { color: var(--ink-900, #12263f); border-bottom-color: var(--qa, #f5a62b); }
.sq-prog { margin: 10px 0 0; }
.sq-prog small { display: block; margin-top: 4px; color: var(--ink-500, #6b7685); font-size: 12px; }

/* reading */
.sq-toc { display: flex; gap: 8px; overflow-x: auto; padding: 2px 0 12px; margin: 0 -16px 8px; padding-left: 16px; padding-right: 16px; scrollbar-width: none; }
.sq-toc::-webkit-scrollbar { display: none; }
.sq-toc a { flex: none; font-size: 13px; font-weight: 700; text-decoration: none; padding: 7px 11px; border: 1.5px solid var(--qb, #12263f); background: var(--paper-100, #fcf9f1); white-space: nowrap; }
.sq-toc a.done { background: var(--green-100, #e2efe6); }
.sq-sec { margin: 0 0 34px; scroll-margin-top: 66px; }
.sq-sec > h2 { font-size: 24px; line-height: 1.1; margin: 0 0 12px; padding-bottom: 8px; border-bottom: 2px solid var(--qb, #12263f); }
.sq-sec > h2 .n { display: inline-block; background: var(--qn, #12263f); color: #fcf9f1; font-size: 13px; padding: 3px 7px; margin-right: 8px; vertical-align: 3px; letter-spacing: .02em; }
.sq-sec h3 { font-size: 17px; margin: 18px 0 8px; }
.sq-sec p, .sq-sec li { font-size: 16.5px; line-height: 1.68; color: var(--ink-900, #12263f); }
.sq-sec p { margin: 0 0 12px; }
.sq-sec ul, .sq-sec ol { margin: 0 0 14px; padding-left: 22px; }
.sq-sec li { margin: 0 0 9px; padding-left: 2px; }
.sq-sec ol.roman { list-style: lower-roman; }
.sq-sec li::marker { color: var(--qa, #f5a62b); font-weight: 800; }
.sq-fig { margin: 16px 0; background: var(--paper-100, #fcf9f1); border: 1.5px solid var(--qb, #12263f); padding: 8px; }
.sq-fig img { display: block; width: 100%; height: auto; cursor: zoom-in; }
.sq-fig figcaption { font-size: 13px; font-weight: 700; color: var(--ink-700, #3d4c60); padding: 8px 2px 2px; text-align: center; }
.sq-tablewrap { overflow-x: auto; margin: 14px 0; border: 1.5px solid var(--qb, #12263f); background: var(--paper-100, #fcf9f1); }
.sq-tablewrap table { border-collapse: collapse; width: 100%; min-width: 440px; font-size: 14.5px; }
.sq-tablewrap th { background: var(--qn, #12263f); color: #fcf9f1; text-align: left; padding: 9px 10px; font-size: 13px; }
.sq-tablewrap td { padding: 9px 10px; border-top: 1px solid var(--line, #d9d2bf); vertical-align: top; line-height: 1.45; }
.sq-tablewrap td:first-child { font-weight: 700; white-space: nowrap; }
.sq-call { margin: 12px 0; padding: 11px 13px 12px; border-left: 6px solid var(--qa, #f5a62b); background: #f1ead8; font-size: 15.5px; line-height: 1.6; }
.sq-call b.l { display: block; font-family: var(--font-serif); font-size: 11.5px; letter-spacing: .13em; text-transform: uppercase; margin-bottom: 3px; }
.sq-call.trick { border-left-color: var(--qn, #12263f); }
.sq-call.explain { border-left-color: var(--qg, #3a8a5a); background: var(--green-100, #e2efe6); }
.sq-end { margin-top: 10px; }
.sq-zoom { position: fixed; inset: 0; z-index: 300; background: rgba(10,18,32,.92); display: flex; align-items: center; justify-content: center; padding: 12px; overflow: auto; touch-action: pinch-zoom pan-x pan-y; }
.sq-zoom img { max-width: 100%; max-height: 100%; background: #fcf9f1; }
.sq-zoom button { position: fixed; top: calc(10px + env(safe-area-inset-top, 0px)); right: 10px; }

/* overview */
.sq-media h3 { margin: 0 0 4px; font-size: 18px; }
.sq-media p { margin: 0 0 12px; font-size: 14px; color: var(--ink-700, #3d4c60); line-height: 1.45; }
.sq-video { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #0d1e33; margin-top: 12px; }
.sq-video iframe, .sq-video video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #000; }
.sq-out { list-style: none; margin: 0; padding: 0; }
.sq-out li { display: flex; align-items: center; gap: 10px; padding: 11px 0; border-top: 1px solid var(--line, #d9d2bf); font-size: 15px; }
.sq-out li:first-child { border-top: 0; }
.sq-out .tick { flex: none; width: 22px; height: 22px; border: 1.5px solid var(--qb, #12263f); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; background: var(--paper-100, #fcf9f1); }
.sq-out li.done .tick { background: var(--qg, #3a8a5a); color: #fff; border-color: var(--qg, #3a8a5a); }
.sq-out a { text-decoration: none; flex: 1; }

/* audio dock */
.sq-dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; background: var(--qn, #12263f); color: #fcf9f1; padding: 9px 14px calc(9px + env(safe-area-inset-bottom, 0px)); display: none; align-items: center; gap: 10px; border-top: 3px solid var(--qa, #f5a62b); }
.sq-dock.show { display: flex; }
.sq-dock button { font: inherit; border: 0; cursor: pointer; }
.sq-dock .pp { flex: none; width: 42px; height: 42px; background: var(--qa, #f5a62b); color: #12263f; font-size: 17px; font-weight: 800; }
.sq-dock .mid { flex: 1; min-width: 0; }
.sq-dock .ttl { font-size: 12.5px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sq-dock input[type=range] { width: 100%; accent-color: var(--qa, #f5a62b); height: 18px; margin: 2px 0 0; }
.sq-dock .t { font-size: 11px; opacity: .8; font-variant-numeric: tabular-nums; }
.sq-dock .sp { flex: none; background: transparent; color: #fcf9f1; border: 1.5px solid #fcf9f1; padding: 6px 8px; font-weight: 700; font-size: 12.5px; }
.sq-dock .x { flex: none; background: transparent; color: #fcf9f1; font-size: 20px; padding: 4px 6px; }
body.has-dock .sq-wrap { padding-bottom: 150px; }

/* flashcards */
.sq-fc-stats { display: flex; gap: 8px; margin: 0 0 12px; }
.sq-fc-stats div { flex: 1; text-align: center; padding: 9px 4px; background: var(--paper-100, #fcf9f1); border: 1.5px solid var(--qb, #12263f); }
.sq-fc-stats b { display: block; font-family: var(--font-serif); font-size: 22px; line-height: 1; }
.sq-fc-stats span { font-size: 11px; color: var(--ink-500, #6b7685); text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }
.sq-fc-modes { display: flex; flex-wrap: wrap; gap: 0; margin: 0 0 6px; align-items: center; }
.sq-fc-modes button, .sq-fc-modes select { font: inherit; cursor: pointer; }
.sq-fc-modes select { padding: 3px 6px; font-size: 12px; font-weight: 700; border: 1.5px solid var(--qb, #12263f); background: var(--paper-100, #fcf9f1); margin: 0 6px 6px 0; max-width: 150px; }
.sq-flip { perspective: 1200px; margin: 14px 0; }
.sq-flip .in { display: grid; min-height: 270px; transition: transform .45s; transform-style: preserve-3d; cursor: pointer; }
.sq-flip.back .in { transform: rotateY(180deg); }
.sq-face { grid-area: 1 / 1; backface-visibility: hidden; -webkit-backface-visibility: hidden; background: var(--paper-100, #fcf9f1); border: 1.5px solid var(--qb, #12263f); box-shadow: 4px 4px 0 var(--qshadow, #dcd6c5); padding: 22px 20px; display: flex; flex-direction: column; justify-content: center; overflow-y: auto; }
.sq-face .lab { font-size: 11px; letter-spacing: .15em; text-transform: uppercase; font-weight: 800; color: var(--ink-500, #6b7685); margin-bottom: 10px; }
.sq-face .txt { font-family: var(--font-serif); font-size: 21px; line-height: 1.3; font-weight: 700; letter-spacing: -.01em; }
.sq-face.bk { transform: rotateY(180deg); background: #fff6df; }
.sq-face.bk .txt { font-family: var(--font-sans); font-weight: 600; font-size: 18px; line-height: 1.45; }
.sq-face .hint { margin-top: 14px; font-size: 13.5px; color: var(--ink-700, #3d4c60); }
.sq-face .hintbtn { align-self: flex-start; margin-top: 14px; padding: 6px 10px; font: inherit; font-size: 12.5px; font-weight: 700; border: 1.5px dashed var(--qb, #12263f); background: transparent; cursor: pointer; }
.sq-face .tap { margin-top: auto; padding-top: 14px; font-size: 12px; color: var(--ink-500, #6b7685); text-align: center; }
.sq-grade { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.sq-grade .sq-btn { padding: 12px 4px; font-size: 14px; flex-direction: column; gap: 2px; box-shadow: none; }
.sq-grade .sq-btn small { font-size: 11px; font-weight: 600; opacity: .8; }
.sq-grade .miss { background: var(--red-100, #f6e3e7); color: #7a1f33; }
.sq-grade .good { background: var(--green-100, #e2efe6); color: #1d5a37; }
.sq-grade .easy { background: var(--qa, #f5a62b); color: #12263f; }
.sq-cnt { text-align: center; font-size: 13px; color: var(--ink-500, #6b7685); font-weight: 700; }

.sq-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; display: flex; background: var(--paper-100, #fcf9f1); border-top: 1px solid var(--line, #d9d2bf); padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px)); }
.sq-nav a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 6px 4px; color: var(--ink-500, #6b7685); text-decoration: none; font-size: 11.5px; }
.sq-nav a.active { color: var(--ink-900, #12263f); font-weight: 700; }
@media (prefers-reduced-motion: reduce) { .sq-flip .in { transition: none; } .sq-bar > i { transition: none; } }