@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700&family=Source+Serif+4:ital,wght@0,400;0,600;1,400&family=Inter:wght@400;500;600&display=swap');

:root{
  --wine: #6b1e2e;
  --wine-dark: #4a1420;
  --gold: #b8894f;
  --cream: #f6f0e4;
  --cream-2: #efe6d3;
  --ink: #2a1e1a;
  --ink-soft: #5c4d43;
  --line: #d9c9ac;
  --green: #4c6b3f;
  --red: #a13a2e;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:'Source Serif 4', serif;
  padding:0 0 60px;
}
header{
  background: linear-gradient(160deg, var(--wine) 0%, var(--wine-dark) 100%);
  color: var(--cream);
  padding: 28px 24px 22px;
  position: relative;
  overflow:hidden;
}
header::after{
  content:"";
  position:absolute; right:-40px; top:-40px;
  width:220px;height:220px;border-radius:50%;
  background: radial-gradient(circle, rgba(184,137,79,0.25), transparent 70%);
}
.eyebrow{
  font-family:'Inter',sans-serif;
  font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color: var(--gold); font-weight:600; margin-bottom:6px;
}
h1{
  font-family:'Fraunces', serif;
  font-weight:700;
  font-size: clamp(24px, 5vw, 34px);
  margin: 0 0 4px;
  line-height:1.15;
}
.sub{
  font-family:'Inter',sans-serif;
  font-size:13.5px;
  color: #e6d9c4;
  max-width:640px;
}
nav{
  display:flex;
  gap:6px;
  max-width:900px;
  margin:0 auto;
  padding: 14px 16px 0;
  font-family:'Inter',sans-serif;
}
.chapter-jump{
  max-width:900px;
  margin:0 auto;
  padding: 10px 16px 0;
  font-family:'Inter',sans-serif;
  font-size:13px;
  color:var(--ink-soft);
  display:flex;
  align-items:center;
  gap:8px;
}
.chapter-jump select{
  flex:1;
  padding:8px 10px;
  border-radius:8px;
  border:1px solid var(--line);
  background:#fff;
  font-family:'Inter',sans-serif;
  font-size:13px;
  color:var(--ink);
}
nav button{
  flex:1;
  padding:11px 8px;
  border:1px solid var(--line);
  background:#fff;
  color: var(--ink-soft);
  border-radius:10px 10px 0 0;
  font-size:13.5px;
  font-weight:600;
  cursor:pointer;
  border-bottom:none;
  transition: all .15s ease;
}
nav button.active{
  background: var(--cream-2);
  color: var(--wine);
  border-color: var(--wine);
}
main{
  max-width:900px;
  margin: 0 auto;
  background: var(--cream-2);
  border: 1px solid var(--line);
  border-radius: 0 0 12px 12px;
  padding: 24px 20px 30px;
  min-height: 400px;
}
.view{ display:none; }
.view.active{ display:block; }

/* Quiz */
.qcard{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px 18px 16px;
  margin-bottom:16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.tag{
  font-family:'Inter',sans-serif;
  font-size:10.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-weight:600;
  padding:3px 9px;
  border-radius:20px;
  display:inline-block;
  margin-bottom:10px;
}
.tag.foundational{ background:#e4ede0; color:var(--green); }
.tag.intermediate{ background:#f3e6cf; color:var(--gold); }
.tag.exam-level{ background:#f1dcd8; color:var(--red); }
.qtext{ font-size:16px; font-weight:600; margin:2px 0 12px; line-height:1.4; font-family:'Fraunces',serif;}
.opt{
  display:block;
  width:100%;
  text-align:left;
  padding:10px 12px;
  margin-bottom:8px;
  border:1px solid var(--line);
  border-radius:8px;
  background:#fdfbf6;
  font-family:'Inter',sans-serif;
  font-size:13.5px;
  cursor:pointer;
  color:var(--ink);
}
.opt:hover{ border-color: var(--wine); }
.opt.correct{ background:#e4ede0; border-color:var(--green); }
.opt.incorrect{ background:#f6e3e0; border-color:var(--red); }
.explain{
  margin-top:10px;
  font-size:13.5px;
  color: var(--ink-soft);
  background: var(--cream);
  border-left:3px solid var(--gold);
  padding:8px 12px;
  border-radius:0 6px 6px 0;
  display:none;
  font-family:'Inter',sans-serif;
  line-height:1.5;
}
.scorebar{
  font-family:'Inter',sans-serif;
  font-size:13px;
  color:var(--ink-soft);
  margin-bottom:14px;
}

/* Flashcards */
.fc-wrap{ display:flex; flex-direction:column; align-items:center; }
.fc{
  width:100%;
  max-width:480px;
  height:230px;
  perspective:1000px;
  margin-bottom:18px;
}
.fc-inner{
  width:100%; height:100%;
  position:relative;
  transition: transform .5s;
  transform-style: preserve-3d;
  cursor:pointer;
}
.fc-inner.flipped{ transform: rotateY(180deg); }
.fc-face{
  position:absolute; inset:0;
  border-radius:14px;
  backface-visibility:hidden;
  display:flex; align-items:center; justify-content:center;
  padding:22px;
  text-align:center;
  box-shadow:0 4px 12px rgba(74,20,32,0.15);
}
.fc-front{
  background: linear-gradient(160deg,#fff,var(--cream-2));
  border:1px solid var(--line);
}
.fc-front .cat{
  position:absolute; top:14px; left:16px;
  font-family:'Inter',sans-serif; font-size:10px; letter-spacing:.1em;
  text-transform:uppercase; color:var(--gold); font-weight:600;
}
.fc-front .term{
  font-family:'Fraunces',serif; font-weight:700; font-size:22px; color:var(--wine);
}
.fc-back{
  background: var(--wine);
  color: var(--cream);
  transform: rotateY(180deg);
  font-family:'Inter',sans-serif;
  font-size:14.5px;
  line-height:1.55;
}
.fc-nav{
  display:flex; gap:10px; align-items:center;
  font-family:'Inter',sans-serif;
}
.fc-nav button{
  padding:9px 18px;
  border-radius:8px;
  border:1px solid var(--wine);
  background:#fff;
  color:var(--wine);
  font-weight:600;
  cursor:pointer;
  font-size:13.5px;
}
.fc-nav button:hover{ background:var(--wine); color:#fff; }
.fc-count{ font-size:13px; color:var(--ink-soft); min-width:60px; text-align:center;}

/* Listen */
.listen-controls{
  display:flex; gap:10px; align-items:center; flex-wrap:wrap;
  background:#fff; border:1px solid var(--line); border-radius:12px;
  padding:14px 16px; margin-bottom:18px;
  font-family:'Inter',sans-serif;
}
.listen-controls button{
  padding:10px 16px;
  border-radius:8px;
  border:1px solid var(--wine);
  background:var(--wine);
  color:#fff;
  font-weight:600;
  cursor:pointer;
  font-size:13.5px;
}
.listen-controls button.secondary{
  background:#fff; color:var(--wine);
}
.listen-controls select{
  padding:8px 10px; border-radius:8px; border:1px solid var(--line);
  font-family:'Inter',sans-serif; font-size:13px; background:#fff;
}
.listen-controls label{ font-size:12.5px; color:var(--ink-soft); }
.script{
  background:#fff; border:1px solid var(--line); border-radius:12px;
  padding:20px 22px; line-height:1.75; font-size:15.5px;
}
.script h3{
  font-family:'Fraunces',serif; color:var(--wine); margin: 22px 0 8px;
  font-size:17px;
}
.script h3:first-child{ margin-top:0; }
.script p{ margin:0 0 12px; }
.script span.reading{
  background: #f3e0b8;
  border-radius: 3px;
}
footer{
  text-align:center;
  font-family:'Inter',sans-serif;
  font-size:12px;
  color:var(--ink-soft);
  margin-top:18px;
}