.topics {
  position: relative;
  background-color: #0f172a;
  padding: 120px 20px;
  font-family: 'Lora', serif;
  overflow: hidden;
}

.topics__bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 80%);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  animation: pulseOrb 6s ease-in-out infinite alternate;
}

@keyframes pulseOrb {
  from { opacity: 0.6; transform: translate(-50%, -50%) scale(0.9); }
  to { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.topics__container {
  position: relative;
  z-index: 1;
  max-width: 1300px;
  margin: 0 auto;
}

.topics__title {
  text-align: center;
  font-family: 'Oswald', sans-serif;
  font-size: 46px;
  font-weight: 700;
  margin: 0 0 60px 0;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #ffffff 0%, #f59e0b 50%, #ffffff 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmerTitle 4s linear infinite;
  opacity: 0;
  transform: translateY(-30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.topics__title.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes shimmerTitle {
  to { background-position: 200% center; }
}

.topics__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
  perspective: 1000px;
}

.topics__card {
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 40px 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  overflow: hidden;
  opacity: 0;
  filter: blur(10px);
  transform: translateY(40px);
}

.topics__card.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

.topics__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(245, 158, 11, 0.2), transparent);
  transition: left 0.6s ease;
  z-index: 1;
  pointer-events: none;
}

.topics__card:hover::before {
  left: 100%;
}

.topics__card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: rgba(245, 158, 11, 0.5);
  box-shadow: 0 20px 40px rgba(245, 158, 11, 0.15), inset 0 0 20px rgba(245, 158, 11, 0.1);
}

.topics__icon-wrap {
  width: 70px;
  height: 70px;
  background: rgba(245, 158, 11, 0.1);
  border-radius: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 25px;
  border: 1px solid rgba(245, 158, 11, 0.2);
  transition: all 0.4s ease;
  z-index: 2;
}

.topics__icon-wrap i {
  font-size: 28px;
  color: #f59e0b;
  transition: all 0.4s ease;
}

.topics__card:hover .topics__icon-wrap {
  background: #f59e0b;
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.6);
  transform: scale(1.1) translateZ(20px);
}

.topics__card:hover .topics__icon-wrap i {
  color: #0f172a;
}

.topics__heading {
  font-family: 'Oswald', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 15px 0;
  line-height: 1.3;
  text-transform: uppercase;
  transition: color 0.3s ease;
  z-index: 2;
}

.topics__text {
  font-size: 14px;
  line-height: 1.6;
  color: #94a3b8;
  margin: 0;
  transition: color 0.3s ease;
  z-index: 2;
}

.topics__card:hover .topics__heading {
  color: #f59e0b;
}

.topics__footer {
  text-align: center;
  margin-top: 60px;
}

.topics__btn {
  display: inline-block;
  font-family: 'Oswald', sans-serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  color: #0f172a;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  border-radius: 30px;
  padding: 18px 54px;
  text-decoration: none;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-40px);
}

.topics__btn.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.topics__btn:hover {
  box-shadow: 0 0 40px rgba(245, 158, 11, 0.8);
  transform: translateY(-4px) scale(1.05);
}

.topics__btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
  transition: left 0.6s ease;
}

.topics__btn:hover::after {
  left: 100%;
}

@media (max-width: 1100px) {
  .topics__grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .topics__title { font-size: 38px; }
}

@media (max-width: 600px) {
  .topics { padding: 80px 16px; }
  .topics__grid { grid-template-columns: 1fr; gap: 15px; }
  .topics__title { font-size: 28px; margin-bottom: 40px; }
  .topics__card { padding: 30px 20px; }
  .topics__btn {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 16px 24px;
  }
  .topics__footer { margin-top: 40px; }
}