/* ============================================================
   KIDVIVE COURSE INFO TABS WIDGET — styles
   Tutor LMS-এর "Course Info | Reviews" ট্যাব বারের স্টাইল অনুসরণে,
   Kidvive পার্পল ব্র্যান্ডিংয়ে। সব .kv-ctab-w দিয়ে scoped।
============================================================ */
.kv-ctab-w{
  font-family: "Hind Siliguri", "Noto Sans Bengali", "Segoe UI", sans-serif;
}
.kv-ctab-w *{ box-sizing: border-box; }

/* ---------- Tab bar ---------- */
.kv-ctab-w .kv-ctab-w-bar{
  display: flex !important;
  align-items: center !important;
  gap: 6px !important;
  padding: 5px !important;
  margin: 0 !important;
  background: #F4F2FA !important;
  border: none !important;
  border-radius: 12px !important;
  list-style: none !important;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.kv-ctab-w .kv-ctab-w-bar::-webkit-scrollbar{ display: none; }

.kv-ctab-w-btn{
  color: #5C5470;
}
.kv-ctab-w button.kv-ctab-w-btn{
  appearance: none !important;
  -webkit-appearance: none !important;
  box-sizing: border-box !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: none !important;
  outline: none !important;
  background-color: transparent !important;
  background-image: none !important;
  border-radius: 8px !important;
  font-family: inherit !important;
  font-size: 14.5px;
  font-weight: 700 !important;
  line-height: 1.4 !important;
  padding: 11px 20px !important;
  margin: 0 !important;
  cursor: pointer;
  position: relative;
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none !important;
  text-transform: none !important;
  letter-spacing: normal !important;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.kv-ctab-w button.kv-ctab-w-btn:hover,
.kv-ctab-w button.kv-ctab-w-btn:focus{
  color: var(--kv-ctab-accent, #531BAE);
  background-color: transparent !important;
}
.kv-ctab-w button.kv-ctab-w-btn.is-active{
  color: #FFFFFF;
  background-color: var(--kv-ctab-accent, #531BAE) !important;
  box-shadow: 0 4px 12px rgba(83,27,174,0.28);
}
.kv-ctab-w button.kv-ctab-w-btn.is-active:hover,
.kv-ctab-w button.kv-ctab-w-btn.is-active:focus{
  color: #FFFFFF;
  background-color: var(--kv-ctab-accent, #531BAE) !important;
}

/* ---------- Panels ---------- */
.kv-ctab-w-panel{
  display: none;
  padding: 22px 4px 4px;
  color: #4A4160;
  font-size: 14.5px;
  line-height: 1.8;
  animation: kvCtabFade 0.25s ease;
}
.kv-ctab-w-panel.is-active{ display: block; }
@keyframes kvCtabFade{
  from{ opacity: 0; transform: translateY(4px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* WYSIWYG কনটেন্টের ভেতরের এলিমেন্ট সাজানো */
.kv-ctab-w-panel h1,
.kv-ctab-w-panel h2,
.kv-ctab-w-panel h3,
.kv-ctab-w-panel h4{
  color: #2B2140;
  line-height: 1.4;
  margin: 0 0 12px;
}
.kv-ctab-w-panel h2{ font-size: 20px; }
.kv-ctab-w-panel h3{ font-size: 17px; }
.kv-ctab-w-panel p{ margin: 0 0 14px; }
.kv-ctab-w-panel p:last-child{ margin-bottom: 0; }
.kv-ctab-w-panel ul,
.kv-ctab-w-panel ol{
  margin: 0 0 14px;
  padding-left: 22px;
}
.kv-ctab-w-panel li{ margin-bottom: 6px; }
.kv-ctab-w-panel img{
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}
.kv-ctab-w-panel a{
  color: var(--kv-ctab-accent, #6C3BD1);
  text-decoration: none;
}
.kv-ctab-w-panel a:hover{ text-decoration: underline; }
.kv-ctab-w-panel blockquote{
  margin: 0 0 14px;
  padding: 12px 16px;
  border-left: 3px solid var(--kv-ctab-accent, #6C3BD1);
  background: #F7F5FC;
  border-radius: 0 10px 10px 0;
}
.kv-ctab-w-panel table{
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 14px;
}
.kv-ctab-w-panel th,
.kv-ctab-w-panel td{
  border: 1px solid #ECE7F7;
  padding: 8px 12px;
  text-align: left;
}
.kv-ctab-w-panel th{
  background: #F7F5FC;
  color: #2B2140;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px){
  .kv-ctab-w-btn{
    font-size: 14px;
    padding: 10px 14px;
  }
  .kv-ctab-w-panel{
    font-size: 13.5px;
    padding-top: 16px;
  }
}

/* ============================================================
   FAQ অ্যাকর্ডিয়ন (FAQ কনটেন্ট-টাইপ ট্যাবের ভেতরে)
============================================================ */
.kv-ctab-faq{
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.kv-ctab-faq-item{
  border: 1px solid #ECE7F7;
  border-radius: 12px;
  overflow: hidden;
  background: #FFFFFF;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.kv-ctab-faq-item.is-open{
  border-color: var(--kv-ctab-accent, #531BAE);
  box-shadow: 0 4px 16px rgba(83,27,174,0.08);
}
.kv-ctab-faq .kv-ctab-faq-q{
  width: 100%;
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px !important;
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: #2B2140;
  text-align: left;
  text-transform: none !important;
  letter-spacing: normal !important;
  line-height: 1.5;
  transition: color 0.2s ease;
}
.kv-ctab-faq .kv-ctab-faq-item.is-open .kv-ctab-faq-q{
  color: var(--kv-ctab-accent, #531BAE);
  background: transparent !important;
  background-color: transparent !important;
}
.kv-ctab-faq .kv-ctab-faq-q:hover,
.kv-ctab-faq .kv-ctab-faq-q:focus{
  color: var(--kv-ctab-accent, #531BAE);
  background: transparent !important;
  background-color: transparent !important;
}

/* +/− আইকন (CSS দিয়ে আঁকা, কোনো ইমেজ লাগে না) */
.kv-ctab-faq-icon{
  position: relative;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.kv-ctab-faq-icon::before,
.kv-ctab-faq-icon::after{
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.kv-ctab-faq-icon::before{ /* horizontal bar */
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}
.kv-ctab-faq-icon::after{ /* vertical bar */
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}
.kv-ctab-faq-item.is-open .kv-ctab-faq-icon::after{
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

/* উত্তর — max-height animation দিয়ে খোলা/বন্ধ */
.kv-ctab-faq-a{
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.kv-ctab-faq-item.is-open .kv-ctab-faq-a{
  max-height: 1000px;
}
.kv-ctab-faq-a-inner{
  padding: 0 18px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: #4A4160;
}
.kv-ctab-faq-a-inner p{ margin: 0 0 10px; }
.kv-ctab-faq-a-inner p:last-child{ margin-bottom: 0; }

@media (max-width: 640px){
  .kv-ctab-faq-q{ font-size: 14px; padding: 14px 15px; }
  .kv-ctab-faq-a-inner{ font-size: 13px; padding: 0 15px 14px; }
}