:root{
  --bg:#fff9fb;
  --surface:#ffffffd9;
  --surface-strong:#ffffff;
  --text:#4f3d46;
  --muted:#7c6571;
  --primary:#e98bb0;
  --primary-strong:#d96d97;
  --secondary:#a57bc7;
  --mint:#9fd8ca;
  --peach:#ffd5bf;
  --yellow:#ffeab1;
  --border:#f4d9e6;
  --shadow:0 18px 40px rgba(217, 109, 151, 0.14);
  --radius:24px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Nunito", system-ui, sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, #ffe7f1 0%, transparent 30%),
    radial-gradient(circle at top right, #efe6ff 0%, transparent 28%),
    linear-gradient(180deg, #fffafc 0%, #fff7fb 100%);
  min-height:100vh;
  overflow-x:hidden;
}
.bg-orbs{
  position:fixed;
  border-radius:50%;
  filter:blur(10px);
  opacity:.42;
  pointer-events:none;
  z-index:0;
}
.orb-1{width:180px;height:180px;background:#ffd6e7;top:8%;left:-40px}
.orb-2{width:220px;height:220px;background:#efe1ff;top:48%;right:-80px}
.orb-3{width:150px;height:150px;background:#d8f5ec;bottom:5%;left:10%}

.hero,
.main-layout,
.footer{position:relative;z-index:1}

.hero{
  max-width:1280px;
  margin:0 auto;
  padding:56px 24px 28px;
  display:grid;
  grid-template-columns:1.2fr .9fr;
  gap:28px;
  align-items:center;
}
.eyebrow{
  display:inline-block;
  background:#fff;
  color:var(--primary-strong);
  padding:8px 14px;
  border-radius:999px;
  font-size:.9rem;
  font-weight:800;
  letter-spacing:.03em;
  box-shadow:var(--shadow);
}
.hero h1{
  font-family:"Quicksand", sans-serif;
  margin:18px 0 10px;
  font-size:clamp(2.3rem,5vw,4.4rem);
  line-height:1.05;
}
.hero h1 span{color:var(--primary-strong)}
.hero p{
  color:var(--muted);
  font-size:1.05rem;
  max-width:60ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.btn{
  border:none;
  border-radius:999px;
  padding:12px 18px;
  font-weight:800;
  cursor:pointer;
  transition:.2s ease;
  font-family:inherit;
}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--primary);color:white}
.btn.secondary{background:#f3e8fb;color:var(--secondary)}
.btn.ghost{background:white;color:var(--primary-strong);border:1px solid var(--border)}
.stats{
  display:flex;
  gap:16px;
  margin-top:24px;
  flex-wrap:wrap;
}
.stat-card{
  background:var(--surface);
  backdrop-filter: blur(12px);
  border:1px solid rgba(255,255,255,.7);
  border-radius:20px;
  padding:16px 18px;
  min-width:170px;
  box-shadow:var(--shadow);
}
.stat-label{
  display:block;
  color:var(--muted);
  font-size:.88rem;
  margin-bottom:6px;
}
.hero-art{
  position:relative;
  display:flex;
  justify-content:center;
  align-items:center;
}
.hero-art img{
  width:min(100%, 430px);
  filter:drop-shadow(0 18px 40px rgba(165,123,199,.15));
}
.floating-card{
  position:absolute;
  background:rgba(255,255,255,.95);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  border-radius:18px;
  padding:12px 14px;
  font-weight:700;
  color:var(--text);
}
.card-a{top:8%;right:2%}
.card-b{bottom:12%;left:0}

.main-layout{
  max-width:1280px;
  margin:0 auto;
  display:grid;
  grid-template-columns:300px 1fr;
  gap:24px;
  padding:0 24px 44px;
}
.sidebar{
  position:sticky;
  top:18px;
  align-self:start;
}
.sidebar-box{
  background:var(--surface);
  border:1px solid rgba(255,255,255,.8);
  backdrop-filter: blur(16px);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
  margin-bottom:18px;
}
.sidebar-box.soft{background:linear-gradient(180deg,#fff,#fff6fb)}
.sidebar-box h2{
  margin:0 0 14px;
  font-size:1.1rem;
  font-family:"Quicksand",sans-serif;
}
#toc{
  display:flex;
  flex-direction:column;
  gap:10px;
}
#toc a{
  text-decoration:none;
  color:var(--text);
  padding:10px 12px;
  border-radius:14px;
  background:#fff;
  border:1px solid var(--border);
  transition:.2s ease;
  font-size:.95rem;
}
#toc a:hover{
  background:#fff5fa;
  transform:translateX(2px);
}

.intro-cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-bottom:18px;
}
.mini-card{
  background:var(--surface);
  border:1px solid rgba(255,255,255,.9);
  padding:18px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.mini-card span{font-size:1.7rem}
.mini-card h3{
  margin:10px 0 6px;
  font-family:"Quicksand",sans-serif;
}
.mini-card p{margin:0;color:var(--muted)}

.checklist-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:18px;
}
.topic-card{
  background:var(--surface);
  border:1px solid rgba(255,255,255,.9);
  border-radius:28px;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.topic-card[open]{background:var(--surface-strong)}
.topic-summary{
  list-style:none;
  cursor:pointer;
  padding:22px 22px 18px;
  display:flex;
  align-items:flex-start;
  gap:14px;
}
.topic-summary::-webkit-details-marker{display:none}
.topic-icon{
  width:52px;height:52px;
  display:grid;place-items:center;
  border-radius:18px;
  background:linear-gradient(180deg, #fff, #ffeef5);
  font-size:1.6rem;
  flex-shrink:0;
}
.topic-head h3{
  margin:0;
  font-size:1.08rem;
  font-family:"Quicksand",sans-serif;
}
.topic-head p{
  margin:6px 0 0;
  color:var(--muted);
  font-size:.94rem;
}
.topic-progress{
  margin-left:auto;
  text-align:right;
  min-width:92px;
}
.topic-progress strong{
  display:block;
  font-size:1.05rem;
  color:var(--primary-strong);
}
.progress-bar{
  height:10px;
  background:#fde7f0;
  border-radius:999px;
  overflow:hidden;
  margin-top:8px;
}
.progress-fill{
  height:100%;
  width:0%;
  background:linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius:999px;
  transition:width .25s ease;
}
.topic-body{
  padding:0 22px 22px;
}
.checklist{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin:0;
}
.check-item{
  display:grid;
  grid-template-columns:28px 1fr;
  align-items:start;
  gap:10px;
  padding:12px 14px;
  border-radius:18px;
  background:#fff;
  border:1px solid var(--border);
}
.check-item input{
  width:20px;height:20px;
  accent-color:var(--primary-strong);
  margin-top:2px;
}
.check-item label{
  line-height:1.45;
  cursor:pointer;
}
.check-item.done{
  background:#fff6fb;
}
.check-item.done label{
  text-decoration:line-through;
  color:#8b7380;
}

.footer{
  text-align:center;
  padding:14px 24px 40px;
  color:var(--muted);
}

@media (max-width: 1024px){
  .hero{grid-template-columns:1fr}
  .main-layout{grid-template-columns:1fr}
  .sidebar{position:static}
}

@media (max-width: 780px){
  .intro-cards,
  .checklist-grid{grid-template-columns:1fr}
  .hero{padding-top:34px}
  .topic-summary{flex-wrap:wrap}
  .topic-progress{width:100%; text-align:left; margin-left:66px}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{transition:none !important}
}


a.btn{ text-decoration:none; display:inline-flex; align-items:center; justify-content:center; }
.nav-link-btn{background:#f3e8fb;color:var(--secondary)}
.mini-card-wide .inline-link{ display:inline-block; margin-top:10px; color:var(--primary-strong); font-weight:800; text-decoration:none; }
.mini-card-wide .inline-link:hover{text-decoration:underline}
.hero-small{padding-top:44px}
.questions-page .main-layout{align-items:start}
.question-sections{ display:flex; flex-direction:column; gap:22px; }
.questions-topic{ background:var(--surface); border:1px solid rgba(255,255,255,.9); border-radius:28px; box-shadow:var(--shadow); padding:22px; }
.questions-topic-head{ display:flex; gap:14px; align-items:center; margin-bottom:18px; }
.questions-topic-head h3{ margin:0; font-family:"Quicksand", sans-serif; font-size:1.15rem; }
.questions-topic-head p{ margin:6px 0 0; color:var(--muted); }
.question-group{ margin-top:14px; }
.group-title{ margin:0 0 14px; font-size:1rem; font-family:"Quicksand", sans-serif; color:var(--primary-strong); }
.question-card{ display:grid; grid-template-columns:56px 1fr; gap:14px; padding:16px; margin-bottom:14px; border-radius:22px; background:#fff; border:1px solid var(--border); }
.question-number{ width:56px; height:56px; border-radius:18px; display:grid; place-items:center; font-weight:800; color:var(--primary-strong); background:linear-gradient(180deg,#fff,#ffeef6); }
.question-tag{ display:inline-block; padding:6px 10px; border-radius:999px; font-size:.82rem; font-weight:800; color:var(--secondary); background:#f5effd; margin-bottom:10px; }
.question-prompt{ margin:0 0 10px; font-size:1rem; }
.options-list{ margin:0; padding-left:22px; }
.options-list li{ padding-left:6px; margin-bottom:7px; color:var(--text); }
.assertion-box{ border-radius:16px; background:#fff8fc; border:1px solid #f7dfea; padding:14px; }
.assertion-box p{ margin:0 0 10px; }
.ar-options{ margin:0; padding-left:18px; color:var(--muted); }
.ar-options li{margin-bottom:6px}
.answer-box{ grid-column:2/3; border-radius:18px; background:#fffafc; border:1px dashed #ecc5d8; }
.answer-box summary{ cursor:pointer; list-style:none; padding:12px 14px; font-weight:800; color:var(--primary-strong); }
.answer-box summary::-webkit-details-marker{display:none}
.answer-content{ padding:0 14px 14px; }
.answer-content p{ margin:8px 0 0; color:var(--muted); }
@media (min-width: 901px){ .intro-cards{ grid-template-columns:repeat(4,1fr); } .mini-card-wide{ grid-column:auto; } }
@media (max-width: 900px){ .question-card{ grid-template-columns:1fr; } .question-number{ width:44px; height:44px; border-radius:14px; } .answer-box{ grid-column:auto; } }

.topic-selector{display:flex;flex-direction:column;gap:10px}
.topic-select-btn{
  width:100%; border:none; text-align:left; cursor:pointer;
  display:flex; gap:10px; align-items:flex-start;
  padding:12px 14px; border-radius:18px;
  background:#fff; color:var(--text); border:1px solid var(--border);
  font:inherit; font-weight:700;
}
.topic-select-btn.active{background:#fff4fa;border-color:#f0c6da; box-shadow:0 8px 18px rgba(223,118,167,.12)}
.topic-select-btn.done::after{content:"✓"; margin-left:auto; color:var(--accent); font-weight:800}
.quiz-player-card{background:var(--surface); border:1px solid rgba(255,255,255,.9); border-radius:28px; box-shadow:var(--shadow); padding:24px}
.quiz-topic-head{display:flex; justify-content:space-between; gap:16px; align-items:flex-start; margin-bottom:16px}
.quiz-kicker{margin:0 0 6px; font-size:.85rem; color:var(--muted); font-weight:800; text-transform:uppercase; letter-spacing:.04em}
.quiz-topic-head h2{margin:0; font-family:"Quicksand",sans-serif; font-size:1.35rem}
.quiz-topic-head p{margin:8px 0 0; color:var(--muted)}
.quiz-mini-stats{display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end}
.quiz-mini-stats span{display:inline-flex; align-items:center; padding:8px 12px; border-radius:999px; background:#fff; border:1px solid var(--border); font-weight:800; color:var(--primary-strong)}
.quiz-progress-wrap{margin-bottom:20px}
.quiz-progress-bar{height:12px; border-radius:999px; background:#f4e7ef; overflow:hidden}
.quiz-progress-bar span{display:block; height:100%; border-radius:999px; background:linear-gradient(90deg,var(--primary),var(--accent)); width:10%; transition:width .25s ease}
#quizProgressText{margin:8px 0 0; color:var(--muted); font-weight:700}
.single-question-card{display:grid; grid-template-columns:72px 1fr; gap:16px; padding:18px; border-radius:24px; background:#fff; border:1px solid var(--border)}
.question-number.big{width:72px; height:72px; border-radius:22px; font-size:1.25rem}
.single-question-body{display:flex; flex-direction:column; gap:12px}
.answer-buttons{display:flex; flex-direction:column; gap:10px; margin-top:6px}
.answer-option-btn{
  width:100%; display:grid; grid-template-columns:42px 1fr; gap:12px; align-items:center;
  padding:12px 14px; border-radius:18px; border:1px solid var(--border); background:#fff;
  font:inherit; text-align:left; cursor:pointer; transition:transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.answer-option-btn:hover:not(:disabled){transform:translateY(-1px); border-color:#efbfd5; box-shadow:0 10px 18px rgba(223,118,167,.10)}
.answer-option-btn:disabled{cursor:default}
.option-letter{width:32px; height:32px; display:grid; place-items:center; border-radius:12px; background:#fff4fa; color:var(--primary-strong); font-weight:800}
.answer-option-btn.correct{border-color:#8ad1b5; background:#f2fff8}
.answer-option-btn.correct .option-letter{background:#d9f7ea; color:#15714c}
.answer-option-btn.wrong{border-color:#f1aab4; background:#fff5f7}
.answer-option-btn.wrong .option-letter{background:#ffe2e8; color:#b53b59}
.answer-option-btn.selected{box-shadow:0 0 0 2px rgba(223,118,167,.12) inset}
.feedback-panel{display:grid; grid-template-columns:56px 1fr; gap:14px; align-items:flex-start; padding:16px; margin-top:16px; border-radius:22px; border:1px solid var(--border); background:#fffafc}
.feedback-panel.hidden,.finish-card.hidden{display:none}
.feedback-panel.is-correct{background:#f3fff9; border-color:#c9ead9}
.feedback-panel.is-wrong{background:#fff8fa; border-color:#f2d2da}
.feedback-badge{width:56px;height:56px;border-radius:18px;display:grid;place-items:center;background:#fff;font-size:1.4rem}
.feedback-panel h4{margin:0 0 8px; font-family:"Quicksand",sans-serif}
.feedback-panel p{margin:6px 0 0; color:var(--text)}
.quiz-actions-row{display:flex; justify-content:space-between; gap:12px; margin-top:18px}
.finish-card{margin-top:18px; padding:20px; border-radius:22px; background:#fff6fb; border:1px solid #ecc5d8}
.finish-card h3{margin:0 0 10px; font-family:"Quicksand",sans-serif}
.finish-card p{margin:0 0 14px; color:var(--text)}
@media (max-width: 900px){
  .quiz-topic-head{flex-direction:column}
  .quiz-mini-stats{justify-content:flex-start}
  .single-question-card{grid-template-columns:1fr}
  .question-number.big{width:52px;height:52px;border-radius:16px;font-size:1rem}
  .feedback-panel{grid-template-columns:1fr}
  .feedback-badge{width:48px;height:48px;border-radius:14px}
  .quiz-actions-row{flex-direction:column}
}