.banner {
  width: 100%;
  position: relative;
  text-align: center;
  color: white;
  padding: clamp(16px, 5vw, 28px);
  background: #f7f7fb;
  display: flex;
  justify-content: center;
  align-items: center;
}

.banner img {
  width: min(92%, 1080px);
  height: auto;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  transition: transform 200ms ease;
}

.banner img:hover {
  transform: scale(1.02);
}

@media (max-width: 640px) {
  .banner {
    padding: clamp(14px, 6vw, 24px);
  }
  .banner img {
    border-radius: 12px;
  }
}

.intro {
  padding: clamp(32px, 9vw, 72px) clamp(20px, 8vw, 84px);
  max-width: 1040px;
  margin: clamp(20px, 6vw, 40px) auto;
  font-size: clamp(16px, 2.3vw, 20px);
  text-align: center;
  line-height: 1.8;
  background: linear-gradient(135deg, rgba(39,13,92,0.92) 0%, rgba(27,0,93,0.88) 100%);
  color: #ffffff;
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(27,0,93,0.18);
}

.labs-heading {
    background: #270D5C;
    color: white;
    text-align: center;
    padding: clamp(12px, 3vw, 20px);
    letter-spacing: 3px;
    margin: clamp(18px, 5vw, 32px) auto;
    font-size: clamp(22px, 3.5vw, 34px);
    max-width: 960px;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.lab-grids {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(16px, 4vw, 28px);
  padding: clamp(20px, 6vw, 48px);
  max-width: 1100px;
  margin: 0 auto clamp(40px, 8vw, 72px);
}

.card {
    border: 1px solid rgba(39,13,92,0.18);
    border-radius: 14px;
    box-shadow: 0 12px 28px rgba(0,0,0,0.08);
    background: #fff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 200ms ease, box-shadow 200ms ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 34px rgba(0,0,0,0.12);
}

.card h3 {
    background: #270D5C;
    color: white;
    font-size: clamp(18px, 2.6vw, 24px);
    margin: 0;
    padding: clamp(16px, 4vw, 24px);
    text-align: center;
}

.card ul {
    padding: clamp(16px, 4vw, 28px) clamp(18px, 5vw, 32px);
    margin: 0;
    list-style: disc inside;
}

.card li {
    font-size: clamp(15px, 2.2vw, 18px);
    margin: 6px 0;
    line-height: 1.6;
}

@media (max-width: 600px) {
  .lab-grids {
    padding: clamp(16px, 7vw, 28px);
  }
  .card ul {
    padding: clamp(14px, 6vw, 22px);
  }
}