:root{
  --slate-blue:#264653;
  --saffron:#E76F51;
  --ivory:#F0F0F0;
  --emerald:#2A9D8F;
  --charcoal:#2B2D42;
  --muted:#64748b;
  --ff-base: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --ff-answer: Georgia, "Times New Roman", Times, serif;
  --ff-expl: Cambria, Cochin, Georgia, "Times New Roman", Times, serif;
  --ff-insights: "Trebuchet MS", "Gill Sans", "Gill Sans MT", Calibri, "Segoe UI", Arial, sans-serif;
  --fz-body:14px;
  --lh-body:1.5;
  --fz-h1-min:18px;
  --fz-h1-max:24px;
  --fz-stem-min:15px;
  --fz-stem-max:18px;
  --fz-pill:12.8px;
  --fz-meta:11.5px;
  --fz-opt:14px;
  --fz-tab-main:13px;
  --fz-tab-sub:11.5px;
  --fz-panel:15.6px;
  --lh-panel:1.65;
  --g-card:10px;
  --pad-card:12px;
  --pad-opt-v:10px;
  --pad-opt-h:12px;
  --gap-options:10px;
  --rad-card:12px;
  --rad-opt:12px;
  --qno-size:34px;
  --label-min:26px;
}

/* Base scope */
.cs-scope {
  color:var(--charcoal);
  font-family:var(--ff-base);
  font-size:var(--fz-body);
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* Layout container */
.cs-scope .container{
  max-width:900px;
  margin:18px auto;
  padding:0 12px;
  box-sizing:border-box;
}

/* Header */
.cs-scope header.page-header h1{
  color:var(--slate-blue);
  margin:.15rem 0 .35rem;
  font-weight:700;
  font-size:clamp(var(--fz-h1-min),3vw,var(--fz-h1-max));
  letter-spacing:.2px;
}
.cs-scope header.page-header p{
  color:var(--muted);
  margin:0 0 8px;
  font-size:12.75px;
}

/* Root quiz wrapper */
.cs-scope #civilspath-mcq{
  background:var(--ivory);
  padding:12px;
  border-radius:10px;
  box-shadow:0 6px 22px rgba(43,45,66,.06);
  box-sizing:border-box;
}
.cs-scope .small{font-size:11.75px;color:var(--muted)}

/* Score card */
.cs-scope .scorebar{
  --ring:rgba(42,157,143,.14);
  --glow:rgba(38,70,83,.10);
  display:grid;
  grid-template-columns:1fr auto;
  gap:12px;
  align-items:center;
  padding:14px 16px;
  margin-bottom:12px;
  border-radius:16px;
  background:linear-gradient(180deg,rgba(240,240,240,.75),#fff);
  border:1px solid var(--ring);
  box-shadow:0 10px 28px var(--glow);
}
@media (max-width:640px){
  .cs-scope .scorebar{grid-template-columns:1fr;text-align:center}
  .cs-scope .score-right{justify-content:center}
}
.cs-scope .score-left{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  justify-content:center;
  font-weight:600;
  color:var(--slate-blue);
}
.cs-scope .score-left>span:first-child{opacity:.85;letter-spacing:.2px}
.cs-scope .score-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:#fff;
  border:1px solid rgba(42,157,143,.18);
  padding:6px 12px;
  border-radius:999px;
  font-size:var(--fz-pill);
  font-weight:600;
  color:var(--charcoal);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
}
.cs-scope .score-digit{font-size:calc(var(--fz-pill) + 1.4px);font-variant-numeric:tabular-nums}
.cs-scope .score-progress{
  grid-column:1 / -1;
  height:8px;
  background:linear-gradient(90deg,rgba(38,70,83,.08),rgba(42,157,143,.10));
  border:1px solid rgba(42,157,143,.18);
  border-radius:999px;
  overflow:hidden;
}
.cs-scope .score-progress>i{display:block;height:100%;width:0%}
.cs-scope .score-right{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.cs-scope .reset-btn{
  border:1px solid rgba(231,111,81,.5);
  background:#fff;
  cursor:pointer;
  padding:8px 14px;
  border-radius:999px;
  font-weight:600;
  font-size:13px;
  color:var(--saffron);
  transition:transform .15s, box-shadow .2s, background .2s, color .2s, border-color .2s;
}
.cs-scope .reset-btn:hover{
  transform:translateY(-1px);
  box-shadow:0 8px 18px rgba(231,111,81,.18);
  background:var(--saffron);
  color:#fff;
  border-color:var(--saffron)
}
.cs-scope .final-box{
  display:none;
  margin-top:8px;
  padding:12px 14px;
  border-radius:14px;
  font-weight:700;
  text-align:center;
  background:var(--emerald);
  color:#fff;
  letter-spacing:.2px;
  box-shadow:0 10px 24px rgba(42,157,143,.18);
  font-size:14px;
}

/* MCQ card */
.cs-scope .mcq-card{
  background:#fff;
  border-radius:var(--rad-card);
  margin:14px 0;
  box-shadow:0 5px 16px rgba(43,45,66,.06);
  overflow:hidden;
  transition:box-shadow .2s, transform .2s, color .2s;
  -webkit-tap-highlight-color: transparent;
}
.cs-scope .mcq-card:hover{box-shadow:0 7px 20px rgba(42,157,143,.14);transform:translateY(-1px)}

/* Meta bar */
.cs-scope .meta-bar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:7px 10px;
  background:linear-gradient(90deg,rgba(231,111,81,.06),rgba(42,157,143,.06));
  border-bottom:1px solid rgba(43,45,66,.04);
  font-weight:600;
}
.cs-scope .meta-left{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.cs-scope .meta-label{font-size:var(--fz-meta);color:var(--slate-blue);font-weight:700}
.cs-scope .meta-pill{background:#fff;border:1px solid rgba(42,157,143,.18);padding:2px 7px;border-radius:999px;font-size:12px;font-weight:600;color:var(--charcoal)}
.cs-scope .meta-right{font-size:11.5px;background:var(--charcoal);color:#fff;padding:2px 8px;border-radius:999px;font-weight:600}

/* Card body */
.cs-scope .mcq-body{padding:var(--pad-card);display:flex;flex-direction:column;gap:var(--g-card)}
.cs-scope .q-row{display:flex;align-items:flex-start;gap:10px}
.cs-scope .q-no{
  --size:var(--qno-size);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:var(--size);
  width:var(--size);
  height:var(--size);
  border-radius:50%;
  background:var(--saffron);
  color:#fff;
  font-weight:700;
  font-size:12.8px;
  line-height:1;
  flex-shrink:0;
  border:1px solid rgba(0,0,0,.06);
}
.cs-scope .q-stem{margin:0;color:var(--charcoal);font-size:clamp(var(--fz-stem-min),2.6vw,var(--fz-stem-max));font-weight:700;letter-spacing:.08px}

/* Options */
.cs-scope .options{display:flex;flex-direction:column;gap:var(--gap-options);margin-bottom:8px;list-style:none;padding:0}
.cs-scope .options li{list-style:none}
.cs-scope .opt-btn{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border:1px solid rgba(43,45,66,.08);
  background:linear-gradient(145deg,#fff,#fafafa);
  box-shadow:0 2px 8px rgba(0,0,0,.04);
  padding:var(--pad-opt-v) var(--pad-opt-h);
  border-radius:var(--rad-opt);
  font-weight:400;
  font-size:var(--fz-opt);
  cursor:pointer;
  transition:all .22s ease;
  color:var(--charcoal);
  width:100%;
  text-align:left;
  min-height:44px;
  box-sizing:border-box;
}
.cs-scope .opt-left{display:flex;align-items:center;gap:10px;text-align:left}
.cs-scope .opt-left span{font-weight:400}
.cs-scope .opt-label{
  display:inline-flex;
  justify-content:center;
  align-items:center;
  min-width:var(--label-min);
  min-height:var(--label-min);
  background:rgba(42,157,143,.12);
  color:var(--emerald);
  font-weight:400;
  font-size:12.6px;
  border:1px solid rgba(42,157,143,.4);
  border-radius:8px;
  transition:background .2s,color .2s;
  padding:4px;
}
.cs-scope .opt-icon{font-size:16px;width:1.1em;text-align:center;opacity:0;transform:scale(.9);transition:opacity .2s, transform .18s}

/* Correct / wrong states */
.cs-scope .opt-btn.correct{
  background:linear-gradient(145deg,rgba(42,157,143,.10),rgba(42,157,143,.03));
  border-color:var(--emerald);
  color:var(--emerald);
  box-shadow:0 5px 14px rgba(42,157,143,.12);
  font-weight:500;
}
.cs-scope .opt-btn.correct .opt-label{background:var(--emerald);color:#fff;border-color:var(--emerald)}
.cs-scope .opt-btn.correct .opt-icon{opacity:1;transform:scale(1)}

.cs-scope .opt-btn.wrong{
  background:linear-gradient(145deg,rgba(231,111,81,.06),rgba(231,111,81,.02));
  border-color:var(--saffron);
  color:var(--saffron);
  box-shadow:0 3px 10px rgba(231,111,81,.12);
  animation:cs-shake 320ms cubic-bezier(.36,.07,.19,.97);
  font-weight:500;
}
.cs-scope .opt-btn.wrong .opt-label{border-color:var(--saffron);color:var(--saffron);background:rgba(231,111,81,.08)}
.cs-scope .opt-btn.wrong .opt-icon{opacity:1;transform:scale(1)}
@keyframes cs-shake{
  0%{transform:translateX(0)}
  15%{transform:translateX(-3px)}
  30%{transform:translateX(3px)}
  45%{transform:translateX(-2px)}
  60%{transform:translateX(2px)}
  75%{transform:translateX(-1px)}
  90%{transform:translateX(1px)}
  100%{transform:translateX(0)}
}
@media (prefers-reduced-motion:reduce){
  .cs-scope .opt-btn.wrong{animation:none}
}

/* Tabs */
.cs-scope .tabs{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap;justify-content:center;align-items:center}
.cs-scope .tab-btn{
  background:#fff;
  border:1px solid rgba(43,45,66,.08);
  padding:10px 12px;
  border-radius:12px;
  cursor:pointer;
  font-weight:700;
  color:var(--saffron);
  transition:transform .18s, box-shadow .18s, background .18s, color .18s, border-color .18s;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  min-width:160px;
  box-shadow:0 4px 10px rgba(43,45,66,.03);
  min-height:64px;
  box-sizing:border-box;
  user-select:none;
}
/* Branded subtle tint on default (not active) */
.cs-scope .tab-btn{border-color:rgba(231,111,81,.18);background:linear-gradient(180deg,rgba(231,111,81,.03),rgba(255,255,255,.02));}
.cs-scope .tab-btn .main{display:inline-flex;gap:8px;align-items:center;justify-content:center;font-size:var(--fz-tab-main)}
.cs-scope .tab-btn .sub{display:block;font-weight:600;font-size:var(--fz-tab-sub);color:var(--muted);margin-top:4px}
.cs-scope .tab-btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(42,157,143,.08)}
/* Active state */
.cs-scope .tab-btn.active{background:var(--slate-blue);color:#fff;border-color:var(--slate-blue);box-shadow:0 10px 22px rgba(38,70,83,.12)}
.cs-scope .tab-btn.active .sub{color:rgba(230,244,241,.95)}
.cs-scope .tab-btn.active[data-tab="answer"] .main,.cs-scope .tab-btn.active[data-tab="answer"] .sub{font-family:var(--ff-answer);font-style:italic;letter-spacing:.2px}
.cs-scope .tab-btn.active[data-tab="explanation"] .main,.cs-scope .tab-btn.active[data-tab="explanation"] .sub{font-family:var(--ff-expl);font-variant:small-caps;letter-spacing:.3px}
.cs-scope .tab-btn.active[data-tab="insights"] .main,.cs-scope .tab-btn.active[data-tab="insights"] .sub{font-family:var(--ff-insights);letter-spacing:.25px}

/* Panels */
.cs-scope .panel{
  display:none;
  opacity:0;
  transform:translateY(6px);
  padding:12px;
  border-radius:12px;
  color:var(--charcoal);
  font-size:13px;
  transition:opacity .22s, transform .22s;
  margin-top:10px;
  border:1px solid rgba(43,45,66,.06);
  box-shadow:0 6px 18px rgba(43,45,66,.04);
  box-sizing:border-box;
}
.cs-scope .panel.show{display:block;opacity:1;transform:translateY(0)}
.cs-scope .panel[data-panel]{font-size:var(--fz-panel);line-height:var(--lh-panel)}
.cs-scope .panel[data-panel="answer"]{
  background:linear-gradient(180deg,rgba(240,240,240,.9),rgba(250,250,250,.95));
  border-left:4px solid var(--emerald);
  color:var(--charcoal);
  font-family:var(--ff-expl);
  font-size:var(--fz-panel);
  line-height:var(--lh-panel);
}
.cs-scope .panel[data-panel="explanation"]{
  background:linear-gradient(180deg,rgba(246,250,249,.98),rgba(244,249,250,.98));
  border-left:4px solid var(--slate-blue);
  font-family:var(--ff-expl);
}
.cs-scope .panel[data-panel="insights"]{
  background:linear-gradient(180deg,rgba(255,250,246,.98),rgba(255,251,249,.98));
  border-left:4px solid var(--saffron);
  font-family:var(--ff-expl);
  font-size:var(--fz-panel);
  line-height:var(--lh-panel);
}
.cs-scope .panel[data-panel="answer"] strong{font-weight:700}

/* Quick take */
.cs-scope .quick-take{margin-top:8px;color:#2B2D42;font-weight:600}

/* Responsive tweaks */
@media (max-width:480px){
  .cs-scope .tab-btn{min-width:130px;padding:9px 10px;min-height:60px}
  .cs-scope .tab-btn .main{font-size:12.6px}
  .cs-scope .tab-btn .sub{font-size:10.9px}
  .cs-scope .panel{padding:10px}
  .cs-scope .panel[data-panel]{font-size:15px}
  .cs-scope .score-pill{padding:5px 10px}
}

/* Back to top */
.cs-scope #cs-top{
  position:fixed;
  right:14px;
  bottom:14px;
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:50%;
  border:1px solid rgba(43,45,66,.12);
  background:#fff;
  cursor:pointer;
  box-shadow:0 8px 22px rgba(0,0,0,.08);
  font-weight:700;
  z-index:9998;
}

/* Watermark */
.cs-watermark{
  position:fixed;
  left:8px;
  bottom:8px;
  z-index:9999;
  font-weight:700;
  font-size:11px;
  letter-spacing:0.6px;
  color:var(--charcoal);
  opacity:0.07;
  transform:rotate(-18deg);
  pointer-events:none;
  user-select:none;
  padding:6px 8px;
  background:transparent;
}
@media (max-width:360px){ .cs-watermark{display:none} }

/* Accessibility */
.cs-scope [role="radiogroup"]{outline:none}
.cs-scope .opt-btn:focus{box-shadow:0 0 0 3px rgba(42,157,143,.12);outline:none}
.cs-scope .tab-btn:focus{box-shadow:0 0 0 3px rgba(38,70,83,.10);outline:none}

/* Utility */
.cs-scope noscript{display:block}

/* Print */
@media print{
  .cs-scope .reset-btn,
  .cs-scope #cs-top,
  .cs-scope .score-progress,
  .cs-scope .scorebar{display:none}
  .cs-scope .mcq-card{box-shadow:none;border:1px solid #eee}
  .cs-scope .panel{page-break-inside:avoid}
}

/* Small bug-fixes */
.cs-scope .options .opt-btn[aria-checked="true"]{outline:none}
.cs-scope .tab-btn[aria-selected="true"]{box-shadow:0 8px 20px rgba(38,70,83,.08)}

/* === Added brand inline helpers from your <style> === */
.cs-heading { color: #264653; font-weight:700; margin-bottom:6px; }
.cs-accent { color: #2A9D8F; font-weight:600; }
.cs-highlight { color: #E76F51; font-weight:600; }
.cs-body { color: #2B2D42; line-height:1.6; }
.tab-btn .main { display:block; font-weight:700; }
.tab-btn .sub { display:block; font-size:0.85em; opacity:0.9; }
.final-box { padding:8px 10px; border-radius:6px; background:#f7f9f9; color:#264653; margin-top:8px; }
.cs-title {
  font-size:1.05rem;
  line-height:1.35;
  font-weight:700;
  color:#264653;
  margin:0 0 6px;
}