:root{
  --ink:#1B1B2F;
  --paper:#FAF6EF;
  --paper-deep:#F2ECDE;
  --saffron:#E2672A;
  --saffron-dim:#F4C9A8;
  --teal:#146B63;
  --teal-dim:#CFE3E0;
  --plum:#5C3D5C;
  --olive:#5C6B3D;
  --line:#E4DCC8;
  --muted:#8A8272;
}

*{box-sizing:border-box}

body{
  margin:0;
  padding:24px 16px 64px;
  max-width:880px;
  margin-left:auto;
  margin-right:auto;
  background:var(--paper);
  color:var(--ink);
  font-family:'Work Sans',Arial,Helvetica,sans-serif;
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}

h1{
  font-family:'Fraunces',serif;
  font-weight:600;
  font-size:clamp(24px,5vw,34px);
  text-align:center;
  margin:8px 0 24px;
  padding:0;
}

h2{
  font-family:'Fraunces',serif;
  background:var(--ink);
  color:var(--paper);
  cursor:default;
  padding:12px 16px;
  width:100%;
  border:none;
  border-radius:8px;
  text-align:center;
  font-weight:600;
  font-size:18px;
  margin:32px 0 16px;
  box-sizing:border-box;
}

p{
  font-family:'Work Sans',sans-serif;
  text-align:left;
}

a{
  color:var(--teal);
  text-decoration:underline;
}

li{
  margin:4px 0;
}

/* Collapsible sections */
.collapsible{
  background:#fff;
  border:1px solid var(--line);
  color:var(--ink);
  cursor:pointer;
  padding:14px 16px;
  width:100%;
  border-radius:10px;
  text-align:left;
  outline:none;
  font-family:'Work Sans',sans-serif;
  font-weight:600;
  font-size:15px;
  margin-top:8px;
}
.collapsible:hover{
  border-color:var(--saffron);
  color:var(--saffron);
}
.active{
  background:var(--ink);
  color:var(--paper);
  border-color:var(--ink);
}
.content{
  padding:14px 16px;
  display:none;
  overflow:hidden;
  background:var(--paper-deep);
  border-radius:0 0 10px 10px;
  margin-top:-6px;
  margin-bottom:8px;
  border:1px solid var(--line);
  border-top:none;
}

/* Vocabulary category colors (kept semantically distinct, restyled to the site palette) */
.QUESTIONWORD{ color:var(--teal); font-weight:700; }
.Hindiword{ color:var(--saffron); font-weight:700; }
.pointingword{ color:var(--plum); font-weight:700; }
.conjunctions{ color:var(--teal); font-weight:700; }
.impword{ color:#9c4a1a; font-weight:700; }
.TAMILPosition{ color:var(--olive); font-weight:700; }
.SpokenHindiTime{ color:#a13d5c; font-weight:700; }
.BodyPartsInTamil{ color:#2f6f6b; font-weight:700; }
.Feelings_Through_Tamil{ color:#5c6b3d; font-weight:700; }
.Hindi_HW_Through_Tamil{ color:var(--plum); font-weight:700; }
.reference{ color:var(--teal); font-size:13px; }
.redtext{ color:#8f2c1c; background:#fbe4dc; padding:2px 6px; border-radius:4px; }

.TEXTBUTTON{
  display:inline-block;
  background:var(--teal-dim);
  color:var(--teal);
  padding:4px 10px;
  border-radius:6px;
  font-weight:700;
}
.REDLINK{
  color:#fff;
  font-weight:700;
  font-size:130%;
  background:var(--saffron);
  padding:4px 10px;
  border-radius:6px;
}
.REDLINK:hover{
  color:#fff;
  background:var(--ink);
}

.c1{ color:var(--ink); font-weight:700; }
.c2{ color:#9c2b2b; font-weight:700; }
.c3{ color:var(--plum); font-weight:700; }
.c4{ color:#8a6d1a; font-weight:700; }

.videos{
  max-width:100%;
  min-width:fit-content;
}

.youtube{
  position:relative;
  width:100%;
  max-width:720px;
  max-height:405px;
  padding-bottom:min(56.25%,405px);
  overflow:hidden;
  border-radius:10px;
  margin:8px 0;
}
.youtube iframe{
  position:absolute;
  top:0;
  width:100%;
  height:100%;
  max-width:720px;
  max-height:405px;
  border:0;
}

/* Buy-course / Youtube CTA buttons scattered through the content */
.content button[type="button"]{
  background:var(--saffron);
  color:#fff;
  border:none;
  border-radius:8px;
  padding:10px 18px;
  font-weight:700;
  font-size:14px;
  cursor:pointer;
  margin:4px 0;
}
.content button[type="button"]:hover{
  background:#cf5920;
}

/* Excel-pasted reference tables: keep native table layout intact, just add spacing */
table{
  margin:12px 0;
}