body {
  font-family: Arial;
  background: #f4f6fb;
  margin: 0;
}

.cards-container {
  max-width: 900px;
  margin: auto;
  padding: 30px;
}

/* DEBIT CARD SECTION */

.debit-card-section {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.card-box {
  position: relative;
  width: 380px;
}

.card-img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* BALANCE OVERLAY */
.card-balance {
  position: absolute;

  top: 15px;
  right: 15px;

  color: white;
  font-size: 22px;
  font-weight: 700;

  background: rgba(0, 0, 0, 0.35);
  padding: 6px 12px;
  border-radius: 8px;
}
/* CREDIT SECTION */

.credit-title {
  margin-top: 50px;
}

.credit-section {
  background: white;
  padding: 30px;
  border-radius: 12px;
  margin-top: 15px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.no-credit {
  margin-bottom: 20px;
  color: #555;
}

.credit-btn {
  background: #4b38f5;
  color: white;
  padding: 12px 25px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
}

/* BACK BUTTON */

.back-section {
  text-align: center;
  margin-top: 40px;
}

.back-btn {
  background: #021633;
  color: white;
  padding: 14px 30px;
  border-radius: 25px;
  text-decoration: none;
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .cards-section {
    padding: 24px 14px !important;
  }
  .card-visual {
    height: 180px !important;
  }
  .card-number {
    font-size: 1rem !important;
    letter-spacing: 3px !important;
  }
  .card-details-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .card-actions {
    flex-direction: column !important;
    gap: 10px !important;
  }
  .card-actions button {
    width: 100% !important;
  }
  .card-info-grid {
    grid-template-columns: 1fr 1fr !important;
  }
}