:root{--navy:#0a1628;--navy2:#111e33;--ink:#132033;--muted:#607089;--line:#e5edf5;--soft:#f7f9fc;--card:#fff;--blue:#2e86ab;--blue2:#e5f4fa;--gold:#c39535;--gold2:#fff7e6;--green:#1f7a57;--green2:#e8f6ef;--red:#b64242;--red2:#fff0f0;--shadow:0 16px 40px rgba(10,22,40,.08);--r:20px;--safe-bottom:0px}@supports(padding:env(safe-area-inset-bottom)){:root{--safe-bottom:env(safe-area-inset-bottom)}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#f5f7fb;color:var(--ink);line-height:1.55}.app{min-height:100vh}.shell{min-height:100vh;padding-left:300px}.topbar{position:sticky;top:0;z-index:30;height:86px;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);display:flex;align-items:center;gap:16px;padding:14px 30px;border-bottom:1px solid var(--line)}.topbar h1{margin:0;font-size:clamp(22px,3vw,32px);line-height:1.1;font-weight:800;letter-spacing:-.035em;color:var(--ink)}.eyebrow{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-weight:800}.iconbtn,.searchbtn{cursor:pointer;touch-action:manipulation;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:18px;width:54px;height:54px;font-size:24px;box-shadow:0 8px 24px rgba(10,22,40,.06)}.searchbtn{margin-left:auto;background:var(--blue);color:white;border-color:var(--blue)}.drawer{position:fixed;left:0;top:0;bottom:0;width:300px;background:var(--navy);color:#dbe7f5;z-index:50;overflow:auto;border-right:1px solid rgba(255,255,255,.08)}.brand{padding:28px 24px 18px}.brand .mark{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:#63b8d1;font-weight:800}.brand h2{font-size:24px;line-height:1.08;margin:10px 0 6px;color:#fff;letter-spacing:-.03em}.brand p{margin:0;color:#90a0b8;font-size:13px}.navgroup{padding:8px 12px 20px}.navlabel{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:#6d7b91;font-weight:800;margin:18px 12px 8px}.navitem{width:100%;min-height:48px;touch-action:manipulation;border:0;background:transparent;color:#aeb8c8;text-align:left;border-radius:14px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;padding:11px 12px;font:600 14px/1.2 Inter;cursor:pointer}.navtext{display:flex;flex-direction:column;gap:2px;min-width:0}.navtitle{font-weight:600;line-height:1.2;overflow-wrap:break-word}.navcap{font-weight:400;font-size:11px;letter-spacing:.04em;color:#6d7b91}.navitem:hover .navcap,.navitem.active .navcap{color:#9fb1c8}.navitem:hover,.navitem.active{background:#142a44;color:#fff}.navitem.active{box-shadow:inset 3px 0 0 var(--blue)}.pill,.tag{display:inline-flex;align-items:center;gap:4px;border-radius:999px;padding:5px 10px;background:var(--blue2);color:#17627e;font-size:11px;font-weight:800;letter-spacing:.02em;white-space:nowrap}.tag.gold{background:var(--gold2);color:#8a641d}.tag.green{background:var(--green2);color:var(--green)}.content{max-width:1120px;margin:0 auto;padding:34px 32px 120px}.hero,.chapterHeader{background:linear-gradient(135deg,#0a1628 0%,#15243a 100%);color:white;border-radius:28px;padding:clamp(24px,4vw,44px);box-shadow:var(--shadow);margin-bottom:34px}.hero h2,.chapterHeader h2{font-size:clamp(34px,6vw,58px);line-height:1.02;letter-spacing:-.055em;margin:8px 0 16px;color:#fff}.hero p,.chapterHeader p{max-width:760px;color:#c9d4e4;font-size:clamp(16px,2vw,19px)}.statgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:24px}.stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:18px}.stat b{display:block;font-size:34px;color:#68c2dc;line-height:1}.stat span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#a8b6c9;font-weight:800}.sectionTitle{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:34px 0 16px}.sectionTitle h2{font-size:clamp(26px,4vw,42px);line-height:1.05;letter-spacing:-.045em;margin:0;color:var(--ink);font-weight:800}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:0 8px 28px rgba(10,22,40,.05);overflow:hidden}.card h3{font-size:clamp(20px,2.7vw,29px);line-height:1.08;letter-spacing:-.04em;margin:10px 0 10px;color:var(--ink);font-weight:800}.card p{margin:8px 0;color:#334258}.chapterCard{cursor:pointer;transition:transform .16s,box-shadow .16s}.chapterCard:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.chapterMeta{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.lead{font-size:18px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.primary,.button,.tabs button{cursor:pointer;touch-action:manipulation;border:0;border-radius:14px;padding:13px 18px;min-height:44px;font:800 14px/1 Inter;background:var(--blue);color:white;cursor:pointer}.button,.tabs button{background:white;color:var(--ink);border:1px solid var(--line)}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 18px}.tabs button.active{background:var(--navy);color:white}.tablewrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:white;box-shadow:0 8px 28px rgba(10,22,40,.04)}table{width:100%;border-collapse:collapse;font-size:14px}th{background:var(--navy);color:white;text-align:left;padding:13px 14px;font-size:12px;text-transform:uppercase;letter-spacing:.08em}td{padding:13px 14px;border-top:1px solid var(--line);vertical-align:top}tr:nth-child(even) td{background:#f8fbfe}.concept{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:26px;align-items:start;margin-bottom:18px}.concept h3{font-size:clamp(24px,3.1vw,36px);word-break:normal;overflow-wrap:break-word;hyphens:auto}.callout{border-left:4px solid var(--blue);background:var(--blue2);border-radius:14px;padding:16px;margin:14px 0}.callout b{display:block;margin-bottom:5px}.callout.bank{border-color:var(--gold);background:var(--gold2)}.callout.trap{border-color:var(--red);background:var(--red2)}.objectiveList{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;counter-reset:item}.objectiveList li{list-style:none;background:white;border:1px solid var(--line);border-radius:16px;padding:15px 16px;color:#34455e}.objectiveList li:before{counter-increment:item;content:counter(item);display:inline-grid;place-items:center;width:26px;height:26px;margin-right:10px;border-radius:50%;background:var(--blue2);color:var(--blue);font-weight:800}.option{cursor:pointer;touch-action:manipulation;display:block;width:100%;text-align:left;border:1px solid var(--line);background:white;border-radius:14px;padding:14px 16px;margin:8px 0;font:600 15px/1.4 Inter;color:var(--ink)}.option.correct{border-color:#92d7b5;background:var(--green2)}.option.wrong{border-color:#e0a0a0;background:var(--red2)}.progress{height:10px;border-radius:999px;background:#e5edf5;overflow:hidden}.progress span{display:block;height:100%;background:var(--blue)}.flash{min-height:220px;display:grid;place-items:center;text-align:center;font-size:24px;font-weight:800}.modal{position:fixed;inset:0;background:rgba(10,22,40,.48);z-index:80;display:none;place-items:start center;padding:7vh 20px}.modal.open{display:grid}.modalcard{background:white;border-radius:24px;width:min(720px,100%);padding:24px;box-shadow:0 30px 80px rgba(0,0,0,.2);position:relative}.close{position:absolute;right:18px;top:14px;border:0;background:#edf3f8;border-radius:50%;width:36px;height:36px;font-size:24px}.modal input{width:100%;border:1px solid var(--line);border-radius:16px;padding:16px;font:600 16px Inter}.result{padding:14px;border-bottom:1px solid var(--line);cursor:pointer}.bottomnav{display:none}.scrim{display:none}@media(max-width:980px){.shell{padding-left:0}.drawer{transform:translateX(-103%);transition:.2s ease}.drawer.open{transform:none}.scrim.open{display:block;position:fixed;inset:0;background:rgba(0,0,0,.32);z-index:45}.content{padding:24px 18px calc(128px + var(--safe-bottom))}.topbar{height:76px;padding:10px 16px}.grid,.objectiveList{grid-template-columns:1fr}.concept{grid-template-columns:1fr;gap:10px}.statgrid{grid-template-columns:repeat(2,1fr)}.bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:repeat(5,1fr);padding:6px 8px var(--safe-bottom);background:rgba(255,255,255,.96);backdrop-filter:blur(18px);border-top:1px solid var(--line)}.bottomnav button{border:0;background:transparent;color:#6680a2;border-radius:18px;padding:10px 4px 12px;min-height:56px;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;font:800 11px Inter;display:flex;flex-direction:column;gap:4px;align-items:center;justify-content:center}.bottomnav button.active{background:var(--navy);color:white}.bottomnav button:first-child{font-size:18px}.bottomnav span{font-size:11px}.hero,.chapterHeader{border-radius:24px;padding:24px}.hero h2,.chapterHeader h2{font-size:38px}.card{padding:18px}.card h3{font-size:23px}}@media(max-width:560px){.statgrid{grid-template-columns:1fr 1fr}.iconbtn,.searchbtn{width:50px;height:50px}.topbar h1{font-size:22px}.eyebrow{font-size:9px}.tablewrap{margin-left:-4px;margin-right:-4px}.concept h3{font-size:26px}}

/* v8.2 mock exam engine styles — appended without disturbing clean v8 visual system */
.choiceGrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:10px 0 22px}.choiceBtn{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:16px;padding:16px 14px;font:800 15px/1.2 Inter;cursor:pointer;min-height:56px}.choiceBtn.active{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 12px 24px rgba(46,134,171,.18)}.mockSummary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0}.mockSummary div{background:var(--soft);border:1px solid var(--line);border-radius:18px;padding:18px}.mockSummary b{display:block;font-size:30px;color:var(--blue);line-height:1}.mockSummary span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:800}.mockTop{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:14px}.mockTop h2{margin:4px 0 0;font-size:clamp(30px,5vw,48px);letter-spacing:-.04em}.timer{background:var(--navy);color:#fff;border-radius:18px;padding:14px 18px;font:900 24px/1 Inter;min-width:116px;text-align:center}.option.selected{border-color:var(--blue);background:var(--blue2);box-shadow:inset 0 0 0 2px rgba(46,134,171,.18)}.mockNavDots{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.dot{width:44px;height:44px;cursor:pointer;touch-action:manipulation;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font:800 12px Inter;cursor:pointer}.dot.answered{background:var(--blue2);border-color:#b8dceb}.dot.active{background:var(--navy);color:#fff;border-color:var(--navy)}.examControls{position:sticky;bottom:16px;background:rgba(245,247,251,.88);backdrop-filter:blur(14px);padding:12px;border:1px solid var(--line);border-radius:18px;z-index:20}.button:disabled{opacity:.45;cursor:not-allowed}@media(max-width:700px){.choiceGrid{grid-template-columns:repeat(2,minmax(0,1fr))}.mockTop{align-items:flex-start}.timer{font-size:20px;min-width:100px}.examControls{bottom:calc(78px + var(--safe-bottom))}.mockSummary{grid-template-columns:1fr}}

/* ---- v9 enriched-content components (built on the v8 visual system) ---- */
.tickList{margin:12px 0 4px;padding:0;list-style:none;display:grid;gap:8px}
.tickList li{position:relative;padding:8px 8px 8px 30px;color:#334258;font-size:14.5px;line-height:1.5}
.tickList li:before{content:"";position:absolute;left:8px;top:14px;width:8px;height:8px;border-radius:3px;background:var(--blue)}
.subblock{margin:18px 0}
.subblock>h3{font-size:clamp(20px,2.6vw,27px);letter-spacing:-.03em;margin:0 0 12px;color:var(--ink);font-weight:800}
.trapCard{border-left:4px solid var(--red)}
.trapCard .trapHead{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.trapCard h3{font-size:clamp(18px,2.4vw,24px);margin:0;letter-spacing:-.03em}
.trapCard .callout{border-left-color:var(--green);background:var(--green2);margin-top:12px}
.mnemonic{border-left:4px solid var(--blue)}
.mnemonicLine{font:800 18px/1.4 Inter;color:var(--blue);background:var(--blue2);border-radius:12px;padding:12px 14px;margin:10px 0;letter-spacing:.01em}
.memoryGrid{display:grid;grid-template-columns:1fr;gap:18px}
.revisionCard{border-left:4px solid var(--gold)}
.revisionCard.seq{border-left-color:var(--blue)}
.revisionCard h3{font-size:22px;margin:0 0 10px;letter-spacing:-.03em}
.seqLine{font:800 17px/1.5 Inter;color:var(--ink);background:var(--blue2);border-radius:12px;padding:14px 16px;letter-spacing:.01em;text-align:center}
.ctaBar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:34px 0 6px;background:linear-gradient(135deg,#0a1628 0%,#15243a 100%);color:#fff;border-radius:24px;padding:24px 28px;box-shadow:var(--shadow)}
.ctaBar b{font-size:19px;color:#fff}
.ctaBar .muted{color:#9fb0c6}
.ctaBar .primary{white-space:nowrap}
.concept .callout{margin:12px 0}
.concept .tablewrap{margin:14px 0}
@media(max-width:980px){.ctaBar{padding:20px}.memoryGrid{grid-template-columns:1fr}}

/* ---- v9.x fixes: standalone-PWA table clipping + DAMA wheel ---- */
/* Root cause: .card has overflow:hidden and .concept is a grid whose 1fr track
   (=minmax(auto,1fr)) refuses to shrink below a wide table's content width, so
   the overflow was clipped instead of scrolled. Let tracks shrink to 0 so the
   table's own .tablewrap{overflow:auto} handles width and prose wraps normally. */
.concept{grid-template-columns:minmax(220px,320px) minmax(0,1fr)}
.concept>div{min-width:0}
.grid>*,.memoryGrid>*,.subblock{min-width:0}
.card .tablewrap{max-width:100%}
td,th{overflow-wrap:anywhere}
@media(max-width:980px){.concept{grid-template-columns:minmax(0,1fr)}}

.damaWheel{margin:6px 0 14px}
.damaWheel svg{width:100%;max-width:360px;height:auto;display:block;margin:0 auto}
.damaWheel figcaption{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.5}
.damaWheel figcaption .src{display:block;margin-top:4px;font-size:11px;color:#8595a8}
@media(max-width:980px){.examControls{bottom:calc(78px + var(--safe-bottom))}}