:root{
  --mks-rw-brand:#8222EE;
  --mks-rw-accent:#d8ff63;
  --mks-rw-ink:#14102a;
  --mks-rw-muted:#5f6074;
  --mks-rw-bg:#f7f4ff;
  --mks-rw-card:#ffffff;
  --mks-rw-border:#e5def7;
  --mks-rw-green:#178a48;
  --mks-rw-red:#c93535;
  --mks-rw-yellow:#fff8dc;
  --mks-rw-shadow:0 18px 55px rgba(44,20,110,.12);
}

.mks-sat-rw-app,
.mks-rw-unit{
  font-family:Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color:var(--mks-rw-ink);
  max-width:1080px;
  margin:28px auto;
  line-height:1.65;
}

.mks-rw-unit{
  background:linear-gradient(135deg, rgba(130,34,238,.08), rgba(216,255,99,.12));
  border:1px solid var(--mks-rw-border);
  border-radius:26px;
  padding:28px;
  box-shadow:var(--mks-rw-shadow);
}

.mks-rw-unit-header{
  background:linear-gradient(135deg, var(--mks-rw-brand), #32128f);
  color:#fff;
  padding:26px 28px;
  border-radius:22px;
  margin-bottom:24px;
  position:relative;
  overflow:hidden;
}

.mks-rw-unit-header:after{
  content:"";
  position:absolute;
  width:180px;
  height:180px;
  right:-60px;
  top:-70px;
  background:rgba(216,255,99,.25);
  border-radius:50%;
}

.mks-rw-kicker{
  display:inline-block;
  margin:0 0 8px;
  padding:5px 12px;
  color:#241b64;
  background:var(--mks-rw-accent);
  border-radius:999px;
  font-weight:800;
  font-size:.8rem;
  letter-spacing:.04em;
  text-transform:uppercase;
}

.mks-rw-unit-header h2{
  margin:0;
  font-size:clamp(1.7rem, 3.8vw, 3rem);
  line-height:1.08;
  color:#fff;
}

.mks-rw-course-label{
  margin:10px 0 0;
  opacity:.92;
  font-weight:600;
}

.mks-rw-unit-body{
  background:var(--mks-rw-card);
  border:1px solid var(--mks-rw-border);
  border-radius:22px;
  padding:26px;
}

.mks-rw-unit-body h3{
  color:var(--mks-rw-brand);
  font-size:1.45rem;
  margin:24px 0 10px;
}

.mks-rw-unit-body h4{
  color:#281b82;
  margin:18px 0 8px;
}

.mks-rw-unit-body p,
.mks-rw-unit-body li{
  color:#33334a;
  font-size:1rem;
}

.mks-rw-notice{
  margin:18px 0;
  padding:16px 18px;
  border-radius:16px;
  border:1px solid var(--mks-rw-border);
  background:#f8f6ff;
}

.mks-rw-notice strong{
  display:block;
  color:var(--mks-rw-brand);
  margin-bottom:5px;
}

.mks-rw-notice-warning{
  background:#fff8e5;
  border-color:#f4d27a;
}

.mks-rw-notice-success{
  background:#edfff4;
  border-color:#b7ebca;
}

.mks-rw-card,
.mks-rw-question-card,
.mks-rw-result-card{
  background:var(--mks-rw-card);
  border:1px solid var(--mks-rw-border);
  border-radius:24px;
  box-shadow:var(--mks-rw-shadow);
}

.mks-rw-launch{
  padding:28px;
  background:linear-gradient(135deg, var(--mks-rw-brand), #2e0c8d);
  color:#fff;
  border-radius:28px;
  box-shadow:var(--mks-rw-shadow);
}

.mks-rw-launch h2{
  margin:0 0 10px;
  color:#fff;
  font-size:clamp(1.8rem, 4vw, 3rem);
}

.mks-rw-launch p{
  margin:8px 0;
  color:rgba(255,255,255,.92);
}

.mks-rw-launch-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:14px;
  margin:22px 0;
}

.mks-rw-stat{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  border-radius:18px;
  padding:15px;
}

.mks-rw-stat b{
  display:block;
  font-size:1.45rem;
  color:var(--mks-rw-accent);
}

.mks-rw-btn{
  appearance:none;
  border:0;
  border-radius:999px;
  background:var(--mks-rw-brand);
  color:#fff;
  cursor:pointer;
  font-weight:800;
  padding:12px 20px;
  box-shadow:0 10px 25px rgba(130,34,238,.22);
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}

.mks-rw-btn:hover,
.mks-rw-btn:focus{
  transform:translateY(-1px);
  box-shadow:0 14px 30px rgba(130,34,238,.3);
  outline:3px solid rgba(216,255,99,.65);
  outline-offset:2px;
}

.mks-rw-btn-secondary{
  background:#fff;
  color:var(--mks-rw-brand);
  border:1px solid var(--mks-rw-border);
  box-shadow:none;
}

.mks-rw-btn-danger{
  background:#c93535;
}

.mks-rw-btn-accent{
  background:var(--mks-rw-accent);
  color:#241b64;
}

.mks-rw-topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  padding:16px 18px;
  margin-bottom:16px;
  background:#fff;
  border:1px solid var(--mks-rw-border);
  border-radius:20px;
  box-shadow:0 10px 28px rgba(44,20,110,.08);
}

.mks-rw-progress{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
}

.mks-rw-dot{
  width:34px;
  height:34px;
  border-radius:50%;
  border:1px solid var(--mks-rw-border);
  background:#fff;
  color:var(--mks-rw-muted);
  font-weight:800;
  cursor:pointer;
}

.mks-rw-dot.is-current{
  background:var(--mks-rw-brand);
  color:#fff;
}

.mks-rw-dot.is-answered{
  border-color:var(--mks-rw-green);
}

.mks-rw-dot.is-flagged:after{
  content:"★";
  color:#e1a800;
  margin-left:1px;
  font-size:.7rem;
}

.mks-rw-timer{
  font-weight:900;
  color:var(--mks-rw-brand);
  background:#f6f0ff;
  padding:9px 14px;
  border-radius:999px;
}

.mks-rw-question-card{
  padding:24px;
}

.mks-rw-question-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}

.mks-rw-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  border-radius:999px;
  background:#f3efff;
  color:#33216d;
  font-size:.78rem;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.03em;
}

.mks-rw-passage{
  background:#faf9ff;
  border-left:5px solid var(--mks-rw-brand);
  padding:18px;
  border-radius:16px;
  color:#29293d;
  margin-bottom:18px;
}

.mks-rw-stem{
  font-weight:800;
  font-size:1.05rem;
  color:#1f1b42;
}

.mks-rw-choices{
  display:grid;
  gap:12px;
  margin:18px 0;
}

.mks-rw-choice{
  display:flex;
  gap:12px;
  align-items:flex-start;
  width:100%;
  text-align:left;
  border:2px solid var(--mks-rw-border);
  border-radius:18px;
  background:#fff;
  color:#24233c;
  padding:14px 16px;
  cursor:pointer;
  transition:background .15s ease, border .15s ease, transform .15s ease;
}

.mks-rw-choice:hover,
.mks-rw-choice:focus{
  border-color:var(--mks-rw-brand);
  background:#fbf8ff;
  outline:none;
}

.mks-rw-choice.is-selected{
  border-color:var(--mks-rw-brand);
  background:#f2eaff;
}

.mks-rw-choice.is-correct{
  border-color:var(--mks-rw-green);
  background:#effff5;
}

.mks-rw-choice.is-wrong{
  border-color:var(--mks-rw-red);
  background:#fff1f1;
}

.mks-rw-choice-letter{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--mks-rw-brand);
  color:#fff;
  font-weight:900;
}

.mks-rw-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  margin-top:20px;
}

.mks-rw-left-actions,
.mks-rw-right-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.mks-rw-explanation{
  margin-top:18px;
  border:1px solid var(--mks-rw-border);
  border-radius:18px;
  padding:16px;
  background:#fffdf4;
}

.mks-rw-explanation h4{
  color:var(--mks-rw-brand);
  margin:0 0 8px;
}

.mks-rw-result-card{
  padding:26px;
}

.mks-rw-score{
  font-size:2.6rem;
  line-height:1;
  color:var(--mks-rw-brand);
  font-weight:950;
  margin:10px 0;
}

.mks-rw-summary-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:14px;
  margin:18px 0;
}

.mks-rw-summary-box{
  border:1px solid var(--mks-rw-border);
  border-radius:18px;
  padding:16px;
  background:#fbfaff;
}

.mks-rw-summary-box b{
  color:var(--mks-rw-brand);
  font-size:1.4rem;
  display:block;
}

.mks-rw-review-list{
  display:grid;
  gap:12px;
  margin-top:20px;
}

.mks-rw-review-item{
  border:1px solid var(--mks-rw-border);
  border-radius:18px;
  padding:14px;
  background:#fff;
}

.mks-rw-review-item.is-correct{
  border-color:#b9e7ca;
}

.mks-rw-review-item.is-wrong{
  border-color:#f0b6b6;
}

.mks-rw-small{
  color:var(--mks-rw-muted);
  font-size:.92rem;
}

@media (max-width: 720px){
  .mks-rw-unit,
  .mks-rw-unit-body,
  .mks-rw-launch,
  .mks-rw-question-card,
  .mks-rw-result-card{
    padding:18px;
    border-radius:20px;
  }

  .mks-rw-topbar{
    align-items:flex-start;
  }

  .mks-rw-dot{
    width:30px;
    height:30px;
    font-size:.8rem;
  }

  .mks-rw-actions{
    display:block;
  }

  .mks-rw-left-actions,
  .mks-rw-right-actions{
    margin-top:10px;
  }
}

/* Inline interactive practice/test cards (v1.1) */
.mks-rw-inline-toolbar{
  background:#fff;
  border:1px solid var(--mks-rw-border);
  border-left:6px solid var(--mks-rw-brand);
  border-radius:18px;
  padding:16px 18px;
  margin:22px 0;
  box-shadow:0 10px 30px rgba(44,20,110,.08);
}
.mks-rw-inline-toolbar h3{margin:0 0 8px;color:var(--mks-rw-brand)}
.mks-rw-inline-progress{font-weight:800;margin:8px 0;color:var(--mks-rw-ink)}
.mks-rw-inline-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.mks-rw-inline-question{position:relative;}
.mks-rw-inline-question.is-answered{border-color:rgba(130,34,238,.35)}
.mks-rw-inline-question ol{list-style:none!important;margin:16px 0 0!important;padding:0!important;display:grid;gap:10px;}
.mks-rw-inline-question ol li{
  margin:0!important;
  padding:12px 14px 12px 54px!important;
  border:1px solid var(--mks-rw-border);
  border-radius:14px;
  background:#fff;
  cursor:pointer;
  position:relative;
  transition:transform .15s ease, border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.mks-rw-inline-question ol li:hover{transform:translateY(-1px);border-color:rgba(130,34,238,.45);box-shadow:0 8px 22px rgba(44,20,110,.08)}
.mks-rw-inline-question ol li:before{
  content:attr(data-choice);
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(130,34,238,.1);color:var(--mks-rw-brand);font-weight:900;
}
.mks-rw-inline-question ol li.is-selected{border-color:var(--mks-rw-brand);background:rgba(130,34,238,.07);box-shadow:0 8px 22px rgba(130,34,238,.12)}
.mks-rw-inline-question ol li.is-correct{border-color:var(--mks-rw-green);background:rgba(23,138,72,.09)}
.mks-rw-inline-question ol li.is-correct:before{background:var(--mks-rw-green);color:#fff}
.mks-rw-inline-question ol li.is-wrong{border-color:var(--mks-rw-red);background:rgba(201,53,53,.08)}
.mks-rw-inline-question ol li.is-wrong:before{background:var(--mks-rw-red);color:#fff}
.mks-rw-inline-question ol li.is-disabled{cursor:default;}
.mks-rw-inline-feedback{
  margin-top:14px;
  padding:12px 14px;
  border-radius:14px;
  background:rgba(130,34,238,.07);
  border:1px solid var(--mks-rw-border);
  display:none;
}
.mks-rw-inline-feedback.is-visible{display:block;}
.mks-rw-inline-feedback.is-correct{background:rgba(23,138,72,.09);border-color:rgba(23,138,72,.35)}
.mks-rw-inline-feedback.is-wrong{background:rgba(201,53,53,.08);border-color:rgba(201,53,53,.35)}
.mks-rw-answer-key{
  display:none;
  border:1px dashed var(--mks-rw-border);
  background:rgba(255,255,255,.65);
  border-radius:16px;
  padding:16px;
}
.mks-rw-answer-key.is-visible{display:block;}
.mks-rw-btn-secondary{background:#fff;color:var(--mks-rw-brand);border:1px solid var(--mks-rw-border)}
@media (max-width:640px){
  .mks-rw-inline-question ol li{padding-left:48px!important;}
  .mks-rw-inline-actions{display:grid;}
  .mks-rw-inline-actions .mks-rw-btn{width:100%;}
}


/* v1.3 typography adjustment: bigger question text, smaller answer choices */
.mks-rw-inline-question .mks-rw-passage,
.mks-rw-question-card .mks-rw-passage{
  font-size:clamp(1.08rem, 1.25vw, 1.22rem);
  line-height:1.75;
  font-weight:500;
}

.mks-rw-inline-question .mks-rw-stem,
.mks-rw-question-card .mks-rw-stem{
  font-size:clamp(1.22rem, 1.55vw, 1.42rem);
  line-height:1.45;
  font-weight:900;
  margin:18px 0 16px;
}

.mks-rw-inline-question ol li,
.mks-rw-question-card .mks-rw-choice{
  font-size:clamp(.88rem, 1.02vw, .98rem)!important;
  line-height:1.45;
  font-weight:500;
  padding-top:11px!important;
  padding-bottom:11px!important;
}

.mks-rw-inline-question h4{
  font-size:1.05rem;
}

@media (max-width:640px){
  .mks-rw-inline-question .mks-rw-passage,
  .mks-rw-question-card .mks-rw-passage{
    font-size:1.04rem;
    line-height:1.68;
  }
  .mks-rw-inline-question .mks-rw-stem,
  .mks-rw-question-card .mks-rw-stem{
    font-size:1.14rem;
  }
  .mks-rw-inline-question ol li,
  .mks-rw-question-card .mks-rw-choice{
    font-size:.92rem!important;
  }
}


/* v1.4 mobile typography: compact mobile test view */
@media (max-width:640px){
  .mks-rw-inline-question .mks-rw-passage,
  .mks-rw-question-card .mks-rw-passage,
  .mks-rw-inline-question .mks-rw-stem,
  .mks-rw-question-card .mks-rw-stem{
    font-size:14px!important;
    line-height:1.55!important;
  }

  .mks-rw-inline-question ol li,
  .mks-rw-question-card .mks-rw-choice{
    font-size:12px!important;
    line-height:1.45!important;
  }

  .mks-rw-inline-question ol li{
    padding-top:9px!important;
    padding-bottom:9px!important;
  }

  .mks-rw-inline-question ol li:before{
    width:24px!important;
    height:24px!important;
    font-size:12px!important;
  }
}


/* v1.5 mobile compact lesson layout: maximize student screen space */
@media (max-width:640px){
  .mks-sat-rw-app,
  .mks-rw-unit{
    max-width:100%!important;
    margin:10px auto!important;
    line-height:1.5!important;
  }

  .mks-rw-unit{
    padding:10px!important;
    border-radius:16px!important;
    box-shadow:0 8px 24px rgba(44,20,110,.08)!important;
  }

  .mks-rw-unit-header{
    padding:14px 14px!important;
    border-radius:16px!important;
    margin-bottom:12px!important;
  }

  .mks-rw-unit-header:after{
    width:92px!important;
    height:92px!important;
    right:-28px!important;
    top:-34px!important;
    opacity:.65!important;
  }

  .mks-rw-kicker{
    font-size:10px!important;
    line-height:1.2!important;
    padding:4px 10px!important;
    margin-bottom:10px!important;
    max-width:92%!important;
    white-space:normal!important;
  }

  .mks-rw-unit-header h2{
    font-size:24px!important;
    line-height:1.12!important;
    letter-spacing:-.02em!important;
    max-width:96%!important;
  }

  .mks-rw-course-label{
    font-size:12px!important;
    line-height:1.35!important;
    margin-top:10px!important;
  }

  .mks-rw-unit-body{
    padding:12px!important;
    border-radius:16px!important;
  }

  .mks-rw-unit-body section{
    margin:0 0 12px!important;
  }

  .mks-rw-unit-body h3{
    font-size:22px!important;
    line-height:1.18!important;
    margin:14px 0 8px!important;
    letter-spacing:-.02em!important;
  }

  .mks-rw-unit-body h4,
  .mks-rw-inline-question h4{
    font-size:14px!important;
    line-height:1.25!important;
    margin:10px 0 7px!important;
  }

  .mks-rw-unit-body p,
  .mks-rw-unit-body li,
  .mks-rw-small{
    font-size:14px!important;
    line-height:1.48!important;
  }

  .mks-rw-unit-body ul,
  .mks-rw-unit-body ol:not(.mks-rw-inline-question ol){
    margin-top:8px!important;
    margin-bottom:8px!important;
    padding-left:18px!important;
  }

  .mks-rw-card,
  .mks-rw-question-card,
  .mks-rw-result-card,
  .mks-rw-inline-toolbar{
    padding:12px!important;
    border-radius:16px!important;
    margin:10px 0!important;
    box-shadow:0 8px 20px rgba(44,20,110,.07)!important;
  }

  .mks-rw-passage,
  .mks-rw-inline-question .mks-rw-passage,
  .mks-rw-question-card .mks-rw-passage{
    font-size:14px!important;
    line-height:1.5!important;
    padding:11px 12px!important;
    border-left-width:4px!important;
    border-radius:12px!important;
    margin-bottom:10px!important;
  }

  .mks-rw-stem,
  .mks-rw-inline-question .mks-rw-stem,
  .mks-rw-question-card .mks-rw-stem{
    font-size:14px!important;
    line-height:1.38!important;
    margin:10px 0 8px!important;
    font-weight:850!important;
  }

  .mks-rw-inline-question ol{
    gap:7px!important;
    margin-top:10px!important;
  }

  .mks-rw-inline-question ol li,
  .mks-rw-question-card .mks-rw-choice{
    font-size:12px!important;
    line-height:1.35!important;
    padding:8px 9px 8px 42px!important;
    border-radius:12px!important;
    min-height:0!important;
  }

  .mks-rw-inline-question ol li:before{
    width:22px!important;
    height:22px!important;
    left:10px!important;
    font-size:11px!important;
  }

  .mks-rw-btn,
  .mks-rw-inline-actions .mks-rw-btn{
    font-size:13px!important;
    padding:9px 14px!important;
    min-height:0!important;
  }

  .mks-rw-explanation,
  .mks-rw-inline-feedback,
  .mks-rw-answer-key{
    font-size:13px!important;
    line-height:1.45!important;
    padding:10px!important;
    border-radius:12px!important;
  }
}