/* ======================================================
   KORTING CALCULATOR - MODERNE STIJL
   ====================================================== */

.korting-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 35px;
  background: linear-gradient(145deg, var(--card-bg) 0%, var(--secondary-bg) 100%);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  color: var(--text-color);
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.korting-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue), var(--accent-purple));
  background-size: 200% 100%;
  animation: kortingGradientShift 3s ease infinite;
}

@keyframes kortingGradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.korting-card-title {
  color: var(--text-primary);
  font-size: 2rem;
  margin-bottom: 8px;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.korting-card-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 25px;
  font-weight: 400;
}

.korting-card-feedback {
  background: linear-gradient(135deg, var(--strength-strong) 0%, #059669 100%);
  color: white;
  padding: 12px;
  border-radius: 10px;
  text-align: center;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
  display: block;
  visibility: hidden;
  position: relative;
  z-index: 9999;
}

.korting-card-feedback.visible {
  opacity: 1 !important;
  transform: translateY(0);
  visibility: visible !important;
  display: block !important;
}

.korting-card-feedback.error {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.korting-card-input-section {
  background: var(--overlay-medium);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(45, 55, 72, 0.5);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.korting-card-input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.korting-card-input-group label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.korting-card-input-group input[type="text"] {
  width: 100%;
  padding: 14px 16px;
  background: var(--overlay-dark);
  color: var(--text-primary);
  border: 2px solid var(--border-dark);
  border-radius: 10px;
  font-size: 1rem;
  font-family: "Roboto Mono", monospace;
  font-weight: 600;
  outline: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  box-sizing: border-box;
}

.korting-card-input-group input[type="text"]:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.2);
}

.korting-card-input-group input[type="text"]::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
  font-weight: 400;
}

.korting-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 25px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.korting-card-btn {
  padding: 14px 20px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.korting-card-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.korting-card-btn:hover::before {
  width: 300px;
  height: 300px;
}

.korting-card-btn-icon {
  font-size: 1.1rem;
}

.korting-card-btn-primary {
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-purple-dark) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(147, 51, 234, 0.4);
}

.korting-card-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(147, 51, 234, 0.6);
}

.korting-card-btn-primary:active {
  transform: translateY(0);
}

.korting-card-btn-secondary {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

.korting-card-btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.6);
}

.korting-card-results-section {
  background: var(--overlay-medium);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(45, 55, 72, 0.5);
  margin-bottom: 25px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.korting-card-results-section.hidden {
  display: none;
}

.korting-card-results-title {
  color: var(--accent-purple);
  font-size: 1.2rem;
  margin: 0 0 15px 0;
  text-align: center;
  font-weight: 700;
}

.korting-card-result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.korting-card-result-item {
  background: var(--overlay-dark);
  padding: 16px;
  border-radius: 10px;
  border: 2px solid var(--border-dark);
  text-align: center;
  transition: all 0.3s ease;
}

.korting-card-result-item:hover {
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.2);
}

.korting-card-result-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.korting-card-result-value {
  font-family: "Roboto Mono", monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.korting-card-result-value.savings {
  color: var(--strength-strong);
}

.korting-card-info-section {
  background: var(--overlay-medium);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(45, 55, 72, 0.5);
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.korting-card-info-title {
  color: var(--text-primary);
  font-size: 1.1rem;
  margin: 0 0 10px 0;
  font-weight: 700;
}

.korting-card-info-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive aanpassingen */
@media (max-width: 768px) {
  .korting-card {
    padding: 20px 12px;
    border-radius: 16px;
    margin: 0 auto !important;
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
  }
  
  .korting-card * {
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .korting-card-title {
    font-size: 1.5rem;
    margin-bottom: 6px;
  }
  
  .korting-card-subtitle {
    font-size: 0.85rem;
    margin-bottom: 20px;
  }

  .korting-card-feedback {
    padding: 10px;
    font-size: 0.85rem;
    margin-bottom: 16px;
  }

  .korting-card-layout {
    grid-template-columns: 1fr;
    gap: 16px;
    width: 100%;
    overflow: hidden;
  }
  
  .korting-card-input-section {
    padding: 16px 14px;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .korting-card-input-group input[type="text"] {
    padding: 12px 14px;
    font-size: 0.95rem;
  }

  .korting-card-actions {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  
  .korting-card-btn {
    padding: 12px 16px;
    font-size: 0.9rem;
  }

  .korting-card-results-section {
    padding: 16px 14px;
  }

  .korting-card-results-title {
    font-size: 1.1rem;
  }

  .korting-card-result-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .korting-card-result-item {
    padding: 14px;
  }

  .korting-card-result-value {
    font-size: 1.3rem;
  }

  .korting-card-info-section {
    padding: 16px 14px;
  }

  .korting-card-info-title {
    font-size: 1rem;
  }

  .korting-card-info-text {
    font-size: 0.85rem;
  }
}

/* Extra small screens */
@media (max-width: 375px) {
  .korting-card {
    padding: 16px 10px;
  }

  .korting-card-title {
    font-size: 1.3rem;
  }

  .korting-card-subtitle {
    font-size: 0.8rem;
  }

  .korting-card-input-group input[type="text"] {
    padding: 11px 12px;
    font-size: 0.9rem;
  }

  .korting-card-btn {
    padding: 11px 14px;
    font-size: 0.88rem;
  }

  .korting-card-result-value {
    font-size: 1.2rem;
  }
}