body {
  font-family: 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #f8fafc;
  margin: 0;
  padding: 0;
}

header {
  background-color: #1e293b;
  text-align: center;
  padding: 2rem 1rem;
  border-bottom: 4px solid #0ea5e9;
}

header h1 {
  color: #38bdf8;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

header p {
  color: #94a3b8;
  font-size: 1rem;
}

.malware-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 2rem;
}

.card {
  perspective: 1000px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 340px;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front, .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 12px;
  background: #1f2937;
  border: 2px solid #334155;
  padding: 1rem;
  box-sizing: border-box;
  backface-visibility: hidden;
  overflow-y: auto;
}

.card-front {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.card-front img {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
}

.card-front h3 {
  color: #facc15;
  margin-bottom: 0.5rem;
}

.card-back {
  transform: rotateY(180deg);
  text-align: left;
}

.card-back p {
  margin: 0.5rem 0;
  color: #e2e8f0;
}

.card-back h4 {
  color: #22d3ee;
  margin-top: 1rem;
}

footer {
  background-color: #1e293b;
  text-align: center;
  padding: 1rem;
  color: #94a3b8;
}