* { box-sizing: border-box; margin: 0; padding: 0; }

.lec { font-family: inherit; background: #001119;}

.lec__hero {
  background: #03202f;
  padding: 28px 32px 32px;
  border-radius: 12px;
  margin-bottom: 24px;
}

.lec__breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: #8BA0AD;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.lec__breadcrumb a { color: #8BA0AD; text-decoration: none; }
.lec__breadcrumb a:hover { color: #FF6900; }
.lec__breadcrumb span { color: #FF6900; font-weight: 500; }
.lec__breadcrumb i { font-size: 12px; color: #4a6070; }

.lec__hero-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,105,0,0.12);
  border: 1px solid rgba(255,105,0,0.25);
  color: #FF6900;
  font-size: 11px; font-weight: 600;
  padding: 4px 12px; border-radius: 99px;
  margin-bottom: 14px;
  letter-spacing: 0.05em; text-transform: uppercase;
}

.lec__hero-title {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 700; line-height: 1.15;
  color: #E8EEF2; margin-bottom: 16px;
  text-align: left;
}

.lec__hero-meta {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
}
.lec__hero-meta-item {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: #8BA0AD;
}
.lec__hero-meta-item i { font-size: 14px; color: white;}

.lec__grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 20px; align-items: start;
}
@media (max-width: 820px) {
  .lec__grid { grid-template-columns: 1fr; }
}

.lec__video-wrap {
  background: #000c12;
  border-radius: 12px; overflow: hidden;
  aspect-ratio: 16/9;
  border: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 20px;
}
.lec__video-wrap iframe {
  width: 100%; height: 100%; border: none;
}

.lec__card {
  background: #00202F;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 12px; padding: 16px;
  margin-bottom: 14px;
}
.lec__card-label {
  font-size: 10px; font-weight: 700;
  color: #4a6070; text-transform: uppercase;
  letter-spacing: 0.08em; margin-bottom: 12px;
}

.lec__speaker {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 10px;
}
.lec__speaker:last-child { margin-bottom: 0; }
.lec__speaker-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,105,0,0.15);
  border: 1px solid rgba(255,105,0,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #FF6900;
  flex-shrink: 0;
}
.lec__speaker-name {
  font-size: 14px; font-weight: 500;
  color: #E8EEF2; margin-bottom: 2px;
}
.lec__speaker-role { font-size: 12px; color: #8BA0AD; line-height: 1.3; }

.lec__desc { font-size: 14px; line-height: 1.75; color: #C4D0D8; }

.lec__resource-item {
  display: flex; align-items: center; gap: 12px;
  background: #001119;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px; padding: 12px 14px;
  margin-bottom: 8px;
  text-decoration: none;
  transition: border-color 0.15s;
}
.lec__resource-item:hover { border-color: rgba(255,105,0,0.4); }
.lec__resource-name { font-size: 14px; font-weight: 500; color: #E8EEF2; margin-bottom: 2px; }
.lec__resource-type { font-size: 12px; color: #8BA0AD; }

.playlist__header {
  font-size: 10px; font-weight: 700; color: #4a6070;
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.pl-item {
  display: flex; align-items: center; gap: 10px;
  background: #00202F;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px; padding: 10px 12px;
  margin-bottom: 8px; cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s;
}
.pl-item:hover { border-color: rgba(255,105,0,0.3); }
.pl-item--active { border-color: #FF6900; }
.pl-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: rgba(255,105,0,0.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.pl-icon i { font-size: 14px; color: #FF6900; }
.pl-title { font-size: 13px; font-weight: 500; color: #E8EEF2; line-height: 1.3; margin-bottom: 2px; }
.pl-meta { font-size: 11px; color: #8BA0AD; display: flex; align-items: center; gap: 4px; }
.pl-badge {
  font-size: 10px; font-weight: 600;
  background: rgba(255,105,0,0.15); color: #FF6900;
  padding: 2px 6px; border-radius: 4px;
  margin-bottom: 3px; display: inline-block;
}

i.ti.ti-clock {
  color: white;
}