/* Container */
.crc-calculator {
  max-width: 820px;
  margin: 24px auto;
  padding: 18px;
  background-color: rgba(0, 0, 0, 0.55);
  border-radius: 12px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

/* Title */
.crc-calculator h2 {
  margin: 0 0 12px 0;
  padding: 14px 12px;
  border-radius: 10px;
  background-color: rgba(0, 0, 0, 0.55);
  color: #ffffff;
  text-align: center;
  letter-spacing: 0.2px;
}

/* Description */
.crc-description {
  color: #ff0000;
  width: 100%;
  padding: 10px 12px;
  margin: 0 0 14px 0;
  border-radius: 10px;
  background-color: #ffffff;
  border: 3px solid #ccc;
  font-size: 18px;
  line-height: 1.4;
  box-sizing: border-box;
}

/* Top controls bar */
.crc-topbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

@media (min-width: 720px) {
  .crc-topbar {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.crc-topbar-group label {
  font-weight: 800;
  display: block;
  color: #ffffff;
  margin-bottom: 6px;
}

.crc-topbar-group select,
.crc-topbar-group input[type="number"] {
  width: 100%;
  padding: 10px 10px;
  border-radius: 8px;
  border: 3px solid #ccc;
  box-sizing: border-box;
  font-size: 16px;
}

/* Grid layout */
.crc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 720px) {
  .crc-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Form group */
.form-group label {
  font-weight: 800;
  display: block;
  color: #ffffff;
  margin-bottom: 6px;
}

.crc-opt {
  font-weight: 700;
  font-style: italic;
  opacity: 0.9;
}

/* Inputs */
.form-group input[type="number"] {
  width: 100%;
  padding: 10px 10px;
  border-radius: 8px;
  border: 3px solid #ccc;
  box-sizing: border-box;
  font-size: 16px;
}

/* Optional highlight */
.form-group.optional input[type="number"] {
  border-color: #f9d094;
}

.form-group.optional:hover input[type="number"],
.form-group.optional input[type="number"]:focus {
  border-color: #f7b84a;
  outline: none;
}

/* Deprecated fields */
.crc-deprecated {
  opacity: 0.82;
}

.form-group small {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: #ffff00;
  line-height: 1.35;
}

/* Actions */
.crc-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.crc-btn {
  background-color: #ffff00;
  color: #000000;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 900;
  font-size: 16px;
}

.crc-btn:hover {
  color: #0000ff;
  background-color: #00aa00;
}

.crc-btn.secondary {
  background-color: #e6e6e6;
  color: #111;
}

.crc-btn.secondary:hover {
  background-color: #d0d0d0;
  color: #111;
}

/* Result box */
.crc-result {
  margin-top: 18px;
  text-align: center;
  font-size: 22px;
  font-weight: 900;
  color: #ff0000;
  width: 100%;
  padding: 12px 10px;
  border-radius: 10px;
  background-color: #ffffff;
  border: 3px solid #ccc;
  box-sizing: border-box;
}

.crc-result-line {
  margin-bottom: 6px;
}

.crc-result-sub {
  font-size: 14px;
  font-weight: 800;
  color: #111;
  opacity: 0.9;
  line-height: 1.35;
  margin-top: 4px;
}

.crc-error {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 900;
  color: #b00020;
}

/* Summary card (print-friendly) */
.crc-summary {
  margin-top: 14px;
  text-align: left;
  border-top: 2px dashed #cfcfcf;
  padding-top: 12px;
}

.crc-summary-title {
  margin: 0 0 10px 0;
  font-size: 18px;
  color: #111;
}

.crc-summary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

@media (min-width: 720px) {
  .crc-summary-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.crc-summary-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  background: #fafafa;
}

.crc-summary-label {
  font-weight: 900;
  color: #111;
}

.crc-summary-value {
  font-weight: 800;
  color: #111;
  text-align: right;
}

.crc-summary-note {
  margin-top: 10px;
  font-size: 12px;
  font-weight: 800;
  color: #333;
  opacity: 0.9;
  line-height: 1.35;
}

/* Print styles */
@media print {
  .crc-actions,
  .crc-description,
  .crc-grid,
  .crc-topbar {
    display: none !important;
  }

  .crc-calculator {
    background: transparent !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .crc-calculator h2 {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0 0 10px 0 !important;
    margin: 0 0 10px 0 !important;
    text-align: left !important;
  }

  .crc-result {
    border: none !important;
    padding: 0 !important;
  }

  .crc-summary {
    border-top: 1px solid #000 !important;
  }

  .crc-summary-row {
    background: transparent !important;
  }
}