*{box-sizing:border-box}
:root{
  --ink:#0c2a20;--green:#167553;--green2:#0f6648;--muted:#607169;
  --cream:#f4f1e9;--paper:#fbfaf6;--white:#fff;--lime:#dcefd4;
  --line:#d6ddd8;--soft:#eef4ef;--danger:#a34136;--amber:#926c1e;
  --shadow:0 18px 55px rgba(12,42,32,.08);
  --navH:72px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--navH); /* Offset for fixed top navbar */
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-main);
  line-height:1.5;
}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.shell{width:min(1180px,calc(100% - 40px));margin:0 auto}

/* Anchor targets must clear the fixed header, or #subjects lands under it. */
[id]{scroll-margin-top:calc(var(--navH) + 16px)}

/* Reserve the header's space before app.js injects it (prevents layout shift). */
#siteNav{display:block;min-height:0}

/* Visible keyboard focus — previously there was none anywhere on the site. */
:focus-visible{
  outline:3px solid var(--green);
  outline-offset:2px;
  border-radius:4px;
}
/* Only suppress the ring for pointer users, never for keyboard users. */
:focus:not(:focus-visible){outline:none}

.skipLink{
  position:absolute;left:-9999px;top:0;z-index:1200;
  background:var(--ink);color:#fff;padding:12px 18px;
  border-radius:0 0 10px 0;font-weight:800;font-size:14px;
}
.skipLink:focus{left:0}

.srOnly{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:0.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:0.01ms!important;
  }
}

/* ============================================================ */
/* FROZEN / FIXED GLOBAL NAVIGATION HEADER                      */
/* ============================================================ */
.nav.fixedNav{
  position:fixed;top:0;left:0;right:0;width:100%;
  height:var(--navH);z-index:1000;
  background:rgba(251,250,246,0.96);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 14px rgba(12,42,32,0.04);
}
.navInner{
  width:min(1200px,calc(100% - 40px));margin:0 auto;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.navLeft{display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.brandMarkImg{width:38px;height:38px;border-radius:10px;display:block;flex-shrink:0;box-shadow:0 3px 10px rgba(12,42,32,0.15)}
.brandText{display:flex;flex-direction:column;line-height:1.15}
.brandTitle{font-size:16.5px;letter-spacing:-0.025em;color:var(--ink);font-weight:900}
.brandBadge{font-size:10px;text-transform:uppercase;letter-spacing:0.08em;color:var(--green);font-weight:800}

.navLinks{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:700}
.navLink{
  padding:8px 12px;border-radius:8px;color:var(--ink);background:transparent;
  border:0;font-size:14px;font-weight:750;
  transition:all 0.14s ease;display:inline-flex;align-items:center;gap:5px;
}
.navLink:hover{color:var(--green2);background:var(--soft)}
.navLink.active{color:var(--green2);background:var(--soft);box-shadow:inset 0 -2px 0 var(--green)}
.navLink .caret{font-size:11px;color:var(--muted);transition:transform 0.15s ease}
.navDropdown.open .dropdownTrigger .caret{transform:rotate(180deg)}

/* ------------------------------------------------------------
   Dropdown menus — click and keyboard driven.
   These were previously hover-only, which made them completely
   unusable on any touch device.
   ------------------------------------------------------------ */
.navDropdown{position:relative;display:inline-flex;align-items:center}
.dropdownMenu{
  position:absolute;top:100%;left:50%;transform:translateX(-50%);
  width:340px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:0 16px 45px rgba(12,42,32,0.14);padding:8px;
  display:none;flex-direction:column;gap:3px;z-index:1001;
}
.dropdownMenu.compact{width:230px}
.navDropdown.open .dropdownMenu{
  display:flex;animation:navDropdownFade 0.12s cubic-bezier(0.16,1,0.3,1);
}
@keyframes navDropdownFade{
  from{opacity:0;transform:translate(-50%,-4px)}
  to{opacity:1;transform:translate(-50%,0)}
}

/* ------------------------------------------------------------
   Mobile menu button — hidden on desktop, shown under 960px.
   ------------------------------------------------------------ */
.navToggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:11px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color 0.15s ease,background 0.15s ease;
}
.navToggle:hover{border-color:var(--green);background:var(--soft)}
.navToggleBar{
  display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform 0.2s ease,opacity 0.15s ease;
}
body.navOpen .navToggleBar:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.navOpen .navToggleBar:nth-child(2){opacity:0}
body.navOpen .navToggleBar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.navScrim{
  position:fixed;inset:var(--navH) 0 0;z-index:998;
  background:rgba(12,42,32,0.34);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
}

.proPill{
  display:inline-flex;align-items:center;background:var(--lime);color:var(--green2);
  font-size:10px;font-weight:850;padding:2px 6px;border-radius:5px;margin-left:5px;
  letter-spacing:0.04em;
}
.dropdownItem{
  padding:10px 12px;border-radius:9px;display:flex;flex-direction:column;gap:2px;
  transition:background 0.14s ease;text-align:left;
}
.dropdownItem:hover{background:var(--soft)}
.dropdownItem strong{font-size:13.5px;color:var(--ink)}
.dropdownItem span{font-size:12px;color:var(--muted);line-height:1.4}
.dropdownDivider{height:1px;background:var(--line);margin:4px 6px}
.dropdownItem.subLink{padding:8px 12px;flex-direction:row;align-items:center;justify-content:space-between}
.dropdownItem.subLink span{font-size:13px;font-weight:750;color:var(--green2)}
.dropdownItem.subLink:hover span{color:var(--green)}

.navRight{display:flex;align-items:center;gap:12px}
.userBtn{
  padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--ink);font-size:13px;font-weight:750;
  display:inline-flex;align-items:center;gap:6px;
  transition:all 0.15s ease;
}
.userBtn:hover{border-color:var(--green);background:var(--soft);transform:translateY(-1px)}
.userBtn.proMember{background:#eef7f2;border-color:#b4dfc4;color:#0b4d2c}

/* Excel Interactive Grid */
.excelWorkbook{background:#fff;border:1px solid #c0d1c7;border-radius:12px;overflow:hidden;box-shadow:0 6px 20px rgba(12,42,32,0.06);margin:1.25rem 0}
.excelRibbon{background:#107c41;color:#fff;padding:10px 16px;font-weight:750;font-size:13px;display:flex;justify-content:space-between;align-items:center}
.excelTableWrap{overflow-x:auto}
.excelTable{width:100%;border-collapse:collapse;font-size:12.5px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,monospace}
.excelTable th{background:#f3f6f4;border:1px solid #d4ded7;padding:8px 10px;font-weight:750;color:#2d4438;text-align:right;font-size:11.5px}
.excelTable th.colHeader{text-align:center;background:#e8efe9}
.excelTable td{border:1px solid #e1ebe3;padding:7px 10px;text-align:right;color:#1a2e24}
.excelTable td.rowHeader{background:#f3f6f4;font-weight:750;text-align:center;color:#52685c;width:35px}
.excelTable tr:hover td:not(.rowHeader){background:#f4f9f5}
.excelSummaryRow td{background:#edf7f0;font-weight:800;border-top:2px solid #107c41;color:#0c2a20}

/* ============================================================ */
/* HERO & GENERAL SECTIONS                                      */
/* ============================================================ */
.eyebrow{color:var(--green);font-size:11.5px;font-weight:850;letter-spacing:.14em;text-transform:uppercase;margin-bottom:12px}
.hero{padding:60px 0 50px}
.hero h1{margin:0;max-width:1000px;font-size:clamp(44px,6vw,80px);line-height:.98;letter-spacing:-.05em}
.hero h1 span{color:var(--green)}
.heroCopy{max-width:640px;color:var(--muted);font-size:18.5px;line-height:1.6;margin:20px 0 0}
.heroActions{display:flex;align-items:center;gap:14px;margin-top:28px;flex-wrap:wrap}

.btn{border:0;border-radius:10px;padding:12px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14.5px;transition:all 0.16s ease}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{background:#163f31;transform:translateY(-1px);box-shadow:0 6px 16px rgba(12,42,32,0.2)}
.btn.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn.secondary:hover{background:var(--soft);border-color:#b4c5ba;transform:translateY(-1px)}
.btn.green{background:var(--green);color:#fff}
.btn.green:hover{background:var(--green2);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--green);padding-left:4px;padding-right:4px}
.btn.ghost:hover{color:var(--green2);text-decoration:underline}

.section{padding:64px 0}
.section.alt{background:var(--cream);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sectionHead{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:32px}
.sectionHead h1,.sectionHead h2{margin:0;letter-spacing:-.045em;line-height:1;font-size:clamp(32px,4vw,50px)}
.sectionHead p{max-width:480px;color:var(--muted);line-height:1.6}

/* ============================================================ */
/* HOMEPAGE LAYOUT                                              */
/* ============================================================ */
/* These class names were used in the markup but had no rules at all,
   so .conceptLayout never became two columns and .muted never applied. */
.muted{color:var(--muted)}

.homeHero{padding-bottom:34px}
.heroReassure{margin:18px 0 0;font-size:13.5px;color:var(--muted);font-weight:650}

.homeSubjects{padding:8px 0 56px}

.loadStatus{
  text-align:center;margin-top:22px;color:var(--muted);
  font-size:13px;font-weight:700;
}

.conceptLayout{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,0.85fr);
  gap:40px;align-items:center;
}

.spotlightHeading{font-size:clamp(30px,4vw,46px);line-height:1.1;margin:0 0 16px;letter-spacing:-0.04em}
.spotlightCopy{font-size:17px;line-height:1.6;margin-bottom:24px}

.frameworkGrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}

.paperBBand{background:#0c2a20;color:#fff;padding:60px 0}
.paperBInner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:28px}
.paperBHeading{font-size:clamp(27px,3.5vw,42px);line-height:1.2;margin:8px 0 14px;color:#fff}
.paperBCopy{color:#d1ded7;font-size:16.5px;line-height:1.65;margin:0}
.paperBCta{font-size:16px;padding:14px 26px;box-shadow:0 6px 20px rgba(22,117,83,0.4)}

/* Homepage plan teasers */
.planTeaserGrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.planTeaserGrid .card{display:flex;flex-direction:column}
.cardFeatured{border:2px solid var(--green);box-shadow:0 14px 38px rgba(22,117,83,0.12)}
.planTeaserGrid h3{font-size:34px;letter-spacing:-0.04em;margin:14px 0 4px}
.planPeriod{font-size:15px;font-weight:600;color:var(--muted);letter-spacing:0}
.planList{list-style:none;padding:0;margin:16px 0 22px;display:flex;flex-direction:column;gap:9px;flex:1}
.planList li{position:relative;padding-left:24px;font-size:14.5px;color:var(--ink);line-height:1.5}
.planList li::before{
  content:"\2713";position:absolute;left:0;top:0;
  color:var(--green2);font-weight:900;font-size:14px;
}
.planCta{width:100%}

/* Cards & Grid */
.subjectGrid,.cardGrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cardWide{grid-column:span 2}
.cardBadgeRow{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.cardFootRow{margin-top:14px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 0 0 rgba(0,0,0,0);transition:all .18s ease}
.card.clickable:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b8cac0}
.badge{display:inline-flex;align-items:center;background:var(--lime);color:var(--green2);padding:4px 8px;border-radius:6px;font-weight:800;font-size:11.5px;letter-spacing:0.04em}
.badge.support{background:#e9efe9;color:#244d3b;border:1px solid #cbd9d0}
.badge.amber{background:#fef3c7;color:#92400e;border:1px solid #fde68a}
.badge.blue{background:#e0f2fe;color:#0369a1;border:1px solid #bae6fd}
.card h2,.card h3{margin:14px 0 8px;letter-spacing:-.03em}
.card h2{font-size:24px}.card h3{font-size:19px}
.card p{color:var(--muted);line-height:1.6;font-size:14.5px}
.linkish{color:var(--green);font-weight:800;display:inline-flex;align-items:center;gap:4px}

/* ============================================================ */
/* INTERACTIVE SELECTOR PILLS (SUBJECT & MODE SWITCHER)         */
/* ============================================================ */
.selectorBar{
  background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:16px 20px;
  margin-bottom:24px;box-shadow:0 4px 18px rgba(12,42,32,0.04);
}
.selectorRow{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px}
.selectorLabel{font-size:11.5px;font-weight:850;text-transform:uppercase;letter-spacing:0.1em;color:var(--muted);margin-bottom:6px}
.pillGroup{display:flex;flex-wrap:wrap;gap:8px}
.pillBtn{
  border:1px solid var(--line);background:#fff;
  color:var(--ink);padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:750;cursor:pointer;
  transition:all 0.15s ease;display:inline-flex;align-items:center;gap:6px;
}
.pillBtn:hover{border-color:var(--green);background:var(--soft)}
.pillBtn.active{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:0 3px 10px rgba(12,42,32,0.2)}
.pillBtn.active.green{background:var(--green);border-color:var(--green)}

/* ============================================================ */
/* SUBJECT DASHBOARD & SYLLABUS LIST                            */
/* ============================================================ */
.dashboardHero{padding:42px 0 24px}
.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:18px}
.breadcrumbs a{color:var(--green);font-weight:700}
.dashboardHero h1{margin:0;font-size:clamp(38px,4.5vw,62px);letter-spacing:-.05em;line-height:1}
.dashboardHero p{max-width:720px;color:var(--muted);font-size:17px;line-height:1.6}
.statRow{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:24px 0}
.stat{border:1px solid var(--line);background:#fff;border-radius:14px;padding:16px}
.stat strong{display:block;font-size:26px;letter-spacing:-.03em}
.stat span{color:var(--muted);font-size:12.5px}
.area{border-top:1px solid var(--line);padding:28px 0}
.areaTop{display:flex;justify-content:space-between;align-items:center;gap:20px}
.areaTop h2{margin:0;font-size:24px;letter-spacing:-.03em}
.weight{font-size:13px;color:var(--green);font-weight:800}
.topicList{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}
.topic{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}
.topic h3{margin:0 0 12px;font-size:16px}
.conceptList{display:flex;flex-direction:column;gap:6px}
.conceptLink{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:9px 10px;border-radius:8px;border-top:1px solid #edf0ed;
  color:var(--green2);font-weight:700;font-size:13.5px;transition:background 0.12s ease;
}
.conceptLink:hover{background:var(--soft)}
.conceptLink:first-child{border-top:0}

/* Search Box */
.searchBox{
  width:100%;max-width:480px;border:1px solid var(--line);
  border-radius:12px;padding:11px 16px;background:#fff;
  font-size:14px;outline:none;transition:border-color 0.15s ease;
}
.searchBox:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(22,117,83,0.1)}

/* ============================================================ */
/* LESSON & CONCEPT 7-STEP REVISION ARCHITECTURE                */
/* ============================================================ */
.compactConceptHero{padding-bottom:18px}
.conceptLead{max-width:850px;font-size:18px;line-height:1.6}
.lessonShell{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(310px,.65fr);gap:28px;align-items:start;margin-bottom:40px}
.lessonMain{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 6px 24px rgba(12,42,32,0.03)}
.lessonSection{padding:28px 32px;border-top:1px solid var(--line)}
.lessonSection:first-child{border-top:0}
.lessonSection h2{margin:4px 0 14px;letter-spacing:-.03em;font-size:25px}
.lessonKicker{text-transform:uppercase;letter-spacing:.12em;color:var(--green2);font-size:11.5px;font-weight:850}
.lessonKeyIdea{background:#fbfcfa}
.lessonText{font-size:16.5px;line-height:1.75;color:#3d4e46}
.lessonText strong{color:#0c2a20}
.lessonText mjx-container[display="true"]{margin:1.1em 0!important}
.lessonGoal{margin-top:18px;padding:16px 18px;border-radius:12px;background:#f4f8f5;border:1px solid #dfe9e2;color:#3d4e46}
.lessonGoal strong{display:block;margin-bottom:6px;color:var(--green)}
.lessonAside{min-width:0}
.stickyGuide{position:sticky;top:90px}
.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}
.panel+.panel{margin-top:16px}
.callout{border-left:4px solid var(--green);background:var(--soft);padding:16px 18px;border-radius:0 12px 12px 0;margin:16px 0;line-height:1.6}
.callout.amber{border-color:#d5aa4c;background:#fbf5e6;color:#785315}
.callout.danger{border-color:#c76c5f;background:#fcf0ee;color:#8f2d22}
.callout.tip{background:#edf5ee;border-color:#bcd4c4}
.spoken{font-size:13.5px;font-weight:700;color:#3b5648;margin:6px 0 10px}
.notationCard{border:1px solid var(--line);border-radius:14px;padding:16px;margin-top:12px}
.notationSymbol{font-family:Georgia,serif;font-size:32px;color:var(--ink);margin-bottom:6px}
.component{display:grid;grid-template-columns:75px 1fr;gap:12px;padding:8px 0;border-top:1px solid var(--line)}
.component:first-of-type{border-top:0}
.component .sym{font-family:Georgia,serif;color:var(--green);font-size:18px}

/* ============================================================ */
/* AI ACTUARIAL COACH CARD (HIGH-CONTRAST DARK EMERALD)        */
/* ============================================================ */
.aiCoachCard{
  background:#0c2a20!important;color:#fbfaf6!important;
  border-radius:18px;padding:26px 30px;margin-top:28px;
  border:1px solid #1c4b3a;box-shadow:0 16px 40px rgba(12,42,32,0.18);
}
.aiCoachCard h2,.aiCoachCard h3{color:#ffffff!important;margin:6px 0 10px!important;font-size:22px!important;letter-spacing:-0.025em;line-height:1.25}
.aiCoachCard p{color:#d1ded7!important;font-size:14.5px;line-height:1.65;margin:0 0 16px!important}
.aiCoachHead{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:6px}
.aiCoachBadge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(220,239,212,0.16);color:#dcefd4;
  border:1px solid rgba(220,239,212,0.3);padding:4px 11px;
  border-radius:999px;font-size:11.5px;font-weight:800;letter-spacing:0.06em;text-transform:uppercase;
}
.aiQuotaBadge{font-size:12px;color:#a4beaf;font-weight:600}
.aiBtnGroup{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.aiActionBtn{
  background:#174837;color:#ffffff!important;
  border:1px solid #2d6b54;border-radius:10px;
  padding:10px 16px;font-size:13px;font-weight:750;
  cursor:pointer;display:inline-flex;align-items:center;gap:8px;
  transition:all 0.16s ease;
}
.aiActionBtn:hover{background:#205c47;border-color:#49b389;transform:translateY(-1px)}
.aiActionBtn:disabled{opacity:0.6;cursor:not-allowed;transform:none}
.aiResponseBox{
  background:#071912;border:1px solid #1b4938;
  border-left:4px solid #48c794;border-radius:12px;
  padding:18px 22px;color:#f3faf6!important;font-size:14.5px;line-height:1.75;margin-top:16px;
}
.aiResponseBox strong{color:#ffffff!important}
.aiResponseBox em{color:#a0ceba}

/* ============================================================ */
/* PRACTICE, QUIZ & FLASHCARD ENGINES                          */
/* ============================================================ */
.practiceWrap{max-width:860px;margin:0 auto;padding:32px 20px 80px}
.progressTop{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}
.progressBar{height:8px;background:#e2e8e4;border-radius:999px;overflow:hidden;flex:1}
.progressBar>div{height:100%;background:var(--green);width:0;transition:width 0.25s ease}
.questionCard{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
.questionCard h2{margin-top:10px;font-size:22px;line-height:1.45;letter-spacing:-0.02em}
.option{
  display:block;width:100%;text-align:left;
  border:1px solid var(--line);background:#fff;border-radius:12px;
  padding:14px 16px;margin:9px 0;font-size:15px;color:var(--ink);
  transition:all 0.15s ease;
}
.option:hover{border-color:#9fb9aa;background:#f9fbf9;transform:translateX(2px)}
.option.selected{border-color:var(--green);background:var(--soft);font-weight:700}
.option.correct{border-color:#53a87a;background:#edf8f1;color:#1d6642;font-weight:700}
.option.wrong{border-color:#c76c5f;background:#fcf0ee;color:#8f2d22}

/* Marking must not rely on colour alone — add a shape cue and a thicker
   border so the result is unambiguous for colourblind students. */
.option.correct,.option.wrong{border-width:2px;padding-right:44px;position:relative}
.option.correct::after,.option.wrong::after{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:17px;font-weight:900;line-height:1;
}
.option.correct::after{content:"\2713";color:#1d6642}   /* ✓ */
.option.wrong::after{content:"\2717";color:#8f2d22}     /* ✗ */
.option[aria-checked="true"]{border-color:var(--green);background:var(--soft);font-weight:700}
.option:disabled{cursor:default;transform:none}
.option:disabled:hover{transform:none;background:inherit}

/* Feedback banner also carries a text label, not just a background colour. */
.feedbackTag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:15px;font-weight:850;margin-bottom:8px;
}
.feedbackTag .mark{font-size:17px;line-height:1}
.answerInput{width:100%;border:1px solid var(--line);border-radius:12px;padding:14px;margin:14px 0;font-size:16px}
.feedback{margin-top:18px;padding:18px 20px;border-radius:12px;background:var(--soft);line-height:1.65;font-size:15px}
.feedback.bad{background:#fcf0ee;color:#8f2d22}

/* AI Coach failure state — visually distinct from a real answer so a
   service outage is never mistaken for tuition. */
.aiResponseBox.aiResponseError{
  border-left-color:#d5aa4c;
  background:#1a1508;
  color:#f6ecd6!important;
  font-style:normal;
}

.linkBtnInline{
  background:none;border:0;padding:0;color:var(--muted);
  font-size:13px;font-weight:650;text-decoration:underline;cursor:pointer;
}
.linkBtnInline:hover{color:var(--ink)}

/* End-of-drill prompt for signed-out students */
.saveProgressCard{
  background:var(--soft);border:1px solid #c9dcd0;border-radius:16px;
  padding:22px 24px;margin:0 auto 26px;max-width:520px;text-align:left;
}
.saveProgressCard h3{margin:0 0 6px;font-size:17px;letter-spacing:-0.02em}
.saveProgressCard p{margin:0 0 16px;font-size:14px;color:var(--muted);line-height:1.55}
.saveProgressActions{display:flex;gap:10px;flex-wrap:wrap}
.saveProgressActions .btn{flex:1;min-width:150px;justify-content:center}

.flashShell{max-width:820px;margin:0 auto;padding:32px 20px 80px}
.flashcard{
  min-height:380px;background:#fff;border:1px solid var(--line);
  border-radius:22px;padding:36px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;
  transition:transform 0.2s ease;
}
.flashcard .label{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--green);font-weight:850;margin-bottom:22px}
.flashcard .face{font-size:25px;line-height:1.45;max-width:660px}
.flashcard.answer .face{font-size:20px}
.flashControls{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:20px}
.ratingRow{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.ratingRow button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:12px;font-weight:750;transition:background 0.12s ease}
.ratingRow button:hover{background:var(--soft);border-color:#b4c5ba}

/* Login / Account */
.loginShell{max-width:500px;margin:40px auto 90px;padding:0 20px}
.formCard{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.tabs{display:grid;grid-template-columns:1fr 1fr;background:#eef1ef;border-radius:10px;padding:4px;margin-bottom:20px}
.tabs button{border:0;background:transparent;padding:10px;border-radius:8px;font-weight:800;cursor:pointer}
.tabs button.active{background:#fff;box-shadow:0 1px 5px rgba(0,0,0,.08)}
.field{margin:14px 0}
.field label{display:block;font-size:12.5px;font-weight:800;margin-bottom:6px}
.field input,.field select{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px;background:#fff}
.formMsg{font-size:13.5px;line-height:1.5;margin-top:14px}
.empty{padding:30px;border:1px dashed #b9c5bd;border-radius:14px;color:var(--muted);text-align:center}

/* Data tables (study analytics). This class was used in the markup but had
   no rules, so the attempts table rendered completely unstyled. */
.tableWrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table{width:100%;border-collapse:collapse;font-size:14px;margin-top:8px}
.table th{
  text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:0.07em;
  color:var(--muted);font-weight:850;padding:10px 12px;border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.table td{padding:11px 12px;border-bottom:1px solid #edf0ed;color:var(--ink);vertical-align:middle}
.table tbody tr:last-child td{border-bottom:0}
.table tbody tr:hover td{background:#f7faf8}

/* Institutional Footer */
.siteFooter{
  background:#f4f3ee;border-top:1px solid var(--line);
  margin-top:4rem;padding:3.5rem 0 2.5rem;color:var(--ink);
}
.footerInner{width:min(1180px,calc(100% - 40px));margin:0 auto}
.footerTop{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:2.5rem;padding-bottom:2.5rem;border-bottom:1px solid #dcdfd9}
.footerBrand{max-width:340px}
.footerLinksGrid{display:grid;grid-template-columns:repeat(3,minmax(140px,1fr));gap:2rem}
.footerHead{font-size:11.5px;text-transform:uppercase;letter-spacing:0.08em;font-weight:850;color:var(--green);margin-bottom:12px}
.footerCol{display:flex;flex-direction:column;gap:8px}
.footerCol a{color:var(--muted);font-size:13.5px;transition:color 0.14s ease}
.footerCol a:hover{color:var(--ink);text-decoration:underline}
.footerBottom{padding-top:1.5rem;display:flex;flex-direction:column;gap:12px}
.disclaimerText{font-size:12px;color:#7a8a82;line-height:1.6;margin:0}
.copyrightText{font-size:12.5px;color:var(--muted);font-weight:600;margin:0}
.footerBlurb{margin:8px 0 0;font-size:13px;color:var(--muted);line-height:1.6}
.footerBottomRow{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
/* The footer headings are real <h2>s for screen-reader navigation, so reset
   the browser's default heading sizing back to the label styling. */
h2.footerHead{margin:0 0 12px;font-weight:850}

@media(max-width:800px){
  .footerTop{flex-direction:column}
  .footerLinksGrid{grid-template-columns:1fr 1fr;width:100%}
}

footer{
  width:min(1180px,calc(100% - 40px));margin:0 auto;border-top:1px solid var(--line);
  min-height:70px;display:flex;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:13px;padding:20px 0;
}
footer strong{color:var(--ink)}

/* ============================================================ */
/* TOAST NOTIFICATIONS                                          */
/* ============================================================ */
/* AU.toast() previously had no styles at all, so messages such as
   "Redirecting to secure Stripe checkout" were appended as invisible
   unstyled text at the very bottom of the document. */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,16px);
  z-index:1300;max-width:min(460px,calc(100% - 32px));
  background:var(--ink);color:#fff;
  padding:13px 20px;border-radius:12px;
  font-size:14.5px;font-weight:700;line-height:1.45;text-align:center;
  box-shadow:0 12px 34px rgba(12,42,32,0.28);
  opacity:0;pointer-events:none;
  transition:opacity 0.22s ease,transform 0.22s ease;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ============================================================ */
/* COOKIE CONSENT (UK GDPR / PECR)                              */
/* ============================================================ */
.consentBanner{
  position:fixed;left:0;right:0;bottom:0;z-index:1250;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 32px rgba(12,42,32,0.12);
  padding:18px 0;
}
.consentInner{
  width:min(1180px,calc(100% - 40px));margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.consentCopy{flex:1;min-width:280px}
.consentCopy strong{display:block;font-size:14.5px;margin-bottom:4px}
.consentCopy p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.55;max-width:720px}
.consentActions{display:flex;gap:10px;flex-wrap:wrap}
.consentActions .btn{padding:10px 18px;font-size:14px}
.cookieSettingsBtn{
  background:none;border:0;padding:0;color:var(--muted);
  font-size:12.5px;font-weight:600;text-decoration:underline;cursor:pointer;
}
.cookieSettingsBtn:hover{color:var(--ink)}

/* ============================================================ */
/* RESPONSIVE                                                   */
/* ============================================================ */
@media(max-width:960px){
  /* The mobile menu button replaces the inline nav. Previously .navLinks
     was simply set to display:none with nothing to replace it, which left
     phones and tablets with no navigation whatsoever. */
  .navToggle{display:flex}

  .navLinks{
    position:fixed;top:var(--navH);left:0;right:0;
    max-height:calc(100dvh - var(--navH));overflow-y:auto;
    background:var(--paper);border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(12,42,32,0.14);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 20px 24px;z-index:999;
    display:none;
  }
  .navLinks.open{display:flex}

  .navLinks>.navLink{padding:13px 12px;border-radius:10px;font-size:15.5px}

  /* Dropdowns become inline accordions rather than floating panels. */
  .navDropdown{display:block;width:100%}
  .navDropdown .dropdownTrigger{
    width:100%;justify-content:space-between;
    padding:13px 12px;font-size:15.5px;
  }
  .dropdownMenu,.dropdownMenu.compact{
    position:static;transform:none;width:100%;
    border:0;border-radius:0;box-shadow:none;padding:2px 0 10px 10px;
    background:transparent;
    border-left:2px solid var(--line);margin:0 0 6px 12px;
  }
  .navDropdown.open .dropdownMenu{animation:none}

  .brandBadge{display:none}

  .subjectGrid,.cardGrid,.topicList,.lessonShell,.conceptLayout{grid-template-columns:1fr}
  /* Cards that opt into a 2-column span must collapse with the grid. */
  .cardWide{grid-column:span 1}
  .conceptLayout{gap:28px}
  .paperBInner{flex-direction:column;align-items:flex-start}
  .paperBCta{width:100%}
  .statRow{grid-template-columns:1fr 1fr}
  .stickyGuide{position:static}
  .sectionHead{flex-direction:column;align-items:flex-start;gap:16px}
}

@media(max-width:600px){
  :root{--navH:64px}
  .statRow{grid-template-columns:1fr}
  .ratingRow{grid-template-columns:1fr 1fr}
  .heroActions{flex-direction:column;align-items:stretch}
  .heroActions .btn{width:100%}
  .brandTitle{font-size:15px}
  .shell{width:calc(100% - 32px)}
  .questionCard{padding:20px 18px;border-radius:16px}
  .lessonSection{padding:22px 20px}
  .card{padding:20px}
  .consentInner{flex-direction:column;align-items:stretch}
  .consentActions .btn{flex:1}
  .footerBottomRow{flex-direction:column;align-items:flex-start;gap:8px}
}