<style>

/* ===============================
   BORDER BOX
================================*/
.border-box {
  border: 1px solid rgba(255,0,0,.3);
  border-radius: 12px;
  padding: 15px;

  background: #0a0a0a;

  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
}

.border-box .card {
  flex: 1 1 calc(20% - 15px);
  max-width: 100px;
  aspect-ratio: 1/1;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 12px;
  overflow: hidden;

  background: linear-gradient(145deg, #1a0000, #400000);

  box-shadow: 0 0 8px rgba(255,0,0,.2);

  transition: .25s ease;
}

.border-box .card:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 0 14px rgba(255,0,0,.5);
}

.border-box .card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ===============================
   WRAPPER
================================*/
.prdx-wrapper {
  background: #070707;
  padding: 30px;

  border-radius: 18px;
  color: #fff;

  max-width: 750px;
  margin: auto;

  border: 1px solid rgba(255,0,0,.25);
  box-shadow: 0 0 14px rgba(255,0,0,.15);

  font-family: "Segoe UI", sans-serif;
}

/* ===============================
   TITLE
================================*/
.prdx-title {
  text-align: center;
  color: #ff2b2b;

  font-size: 28px;
  margin-bottom: 25px;

  text-shadow: 0 0 8px rgba(255,0,0,.6);
}

/* ===============================
   CONTROLS
================================*/
.prdx-controls {
  display: flex;
  gap: 12px;
  margin-bottom: 25px;
}

.prdx-input {
  background: #0a0a0a;
  border: 1px solid rgba(255,0,0,.25);

  border-radius: 10px;
  padding: 12px;

  color: #ffffff;
  width: 100%;
}

/* ===============================
   BUTTON
================================*/
.prdx-btn {
  background: linear-gradient(135deg, #1a0000, #660000);
  color: #ffffff;

  padding: 14px 20px;
  border-radius: 10px;

  cursor: pointer;
  border: none;

  font-weight: bold;
  transition: .2s;
}

.prdx-btn:hover {
  background: #ff2b2b;
  box-shadow: 0 0 10px rgba(255,0,0,.6);
}

/* ===============================
   RESULT GRID
================================*/
.prdx-result {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;

  opacity: 0;
  transition: .4s ease-out;
}

/* ===============================
   RESULT BOX
================================*/
.prdx-box {
  background: linear-gradient(145deg, #0d0d0d, #1a0000);

  padding: 14px;
  border-radius: 12px;

  text-align: center;

  border: 1px solid rgba(255,0,0,.2);

  box-shadow: 0 0 10px rgba(255,0,0,.12);

  opacity: 0;
  transform: translateY(12px);
  transition: .35s;
}

/* ===============================
   LABEL
================================*/
.prdx-label {
  display: block;
  font-size: 13px;
  color: #ff4d4d;
  margin-bottom: 6px;
}

/* ===============================
   NUMBER
================================*/
.prdx-num {
  font-size: 26px;
  font-weight: bold;
  letter-spacing: 3px;
  min-height: 34px;

  transition: .3s ease-in-out;
}

.prdx-num.glow {
  color: #ff2b2b;
  text-shadow: 0 0 6px rgba(255,0,0,.8);
}

/* ===============================
   HACKER TEXT
================================*/
.prdx-hacker-text {
  font-family: "Consolas", "Courier New", monospace;

  color: #ffcccc;
  background: #0a0a0a;

  padding: 12px 18px;

  border-left: 3px solid #ff2b2b;
  border-radius: 6px;

  margin-bottom: 18px;
  font-size: 14px;

  box-shadow: 0 0 8px rgba(255,0,0,.15);

  animation: prdxPulse 1.5s infinite alternate;
}

/* animasi ringan */
@keyframes prdxPulse {
  0% { opacity: .7; }
  100% { opacity: 1; }
}

/* ===============================
   RESPONSIVE
================================*/
@media (max-width: 768px) {
  .border-box .card { flex: 1 1 calc(33.33% - 10px); }
}

@media (max-width: 480px) {
  .border-box .card { flex: 1 1 calc(50% - 10px); }
}

</style>