.btp-devis-calc {
  max-width: 720px;
  margin: 0 auto;
  font-family: 'Roboto', sans-serif;
  color: #333333;
}

.btp-devis-step {
  margin-bottom: 20px;
}

.btp-devis-step label {
  display: block;
  font-weight: 600;
  color: #003B7A;
  margin-bottom: 8px;
  font-size: 15px;
}

.btp-devis-calc select,
.btp-devis-calc input[type=text],
.btp-devis-calc input[type=email],
.btp-devis-calc input[type=tel],
.btp-devis-calc input[type=number],
.btp-devis-calc textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #E7E9EC;
  border-radius: 6px;
  font-size: 16px;
  font-family: inherit;
  color: #333333;
  background: #FFFFFF;
  transition: border-color .2s;
  box-sizing: border-box;
}

.btp-devis-calc select:focus,
.btp-devis-calc input:focus,
.btp-devis-calc textarea:focus {
  outline: none;
  border-color: #003B7A;
}

.btp-devis-calc select:disabled,
.btp-devis-calc input:disabled {
  background: #F7F8FA;
  color: #9aa0a6;
  cursor: not-allowed;
}

.btp-devis-quantite-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btp-devis-quantite-wrap input[type=number] {
  width: auto;
  flex: 1 1 auto;
  min-width: 0;
}

.btp-devis-unite-suffix {
  font-weight: 600;
  color: #1F4E79;
  white-space: nowrap;
  flex-shrink: 0;
}

.btp-devis-preview {
  background: #F7F8FA;
  border: 1px solid #E7E9EC;
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
}

.btp-devis-preview-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 15px;
}

.btp-devis-preview-row strong {
  color: #003B7A;
}

.btp-devis-add-btn {
  width: 100%;
  margin-top: 14px;
  background: #FFFFFF;
  color: #003B7A;
  border: 2px solid #003B7A;
  border-radius: 6px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background .2s, color .2s, transform .15s;
}

.btp-devis-add-btn:hover {
  background: #003B7A;
  color: #FFFFFF;
  transform: scale(1.01);
}

.btp-devis-cart {
  background: #FFFFFF;
  border: 1px solid #E7E9EC;
  border-radius: 12px;
  padding: 24px;
  margin: 24px 0;
  box-shadow: 0 8px 24px rgba(0,59,122,0.08);
}

.btp-devis-cart h3 {
  color: #003B7A;
  font-size: 18px;
  margin: 0 0 16px;
  font-weight: 600;
}

.btp-devis-cart-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btp-devis-cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: #F7F8FA;
  border: 1px solid #E7E9EC;
  border-radius: 8px;
  animation: btpDevisItemIn .25s ease;
}

@keyframes btpDevisItemIn {
  0% { opacity: 0; transform: translateY(-6px); }
  100% { opacity: 1; transform: translateY(0); }
}

.btp-devis-cart-item-info {
  min-width: 0;
}

.btp-devis-cart-item-title {
  font-weight: 600;
  color: #003B7A;
  font-size: 15px;
}

.btp-devis-cart-item-detail {
  font-size: 13px;
  color: #5b6470;
  margin-top: 2px;
}

.btp-devis-cart-item-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btp-devis-cart-item-total {
  font-weight: 700;
  color: #333333;
  font-size: 15px;
  white-space: nowrap;
}

.btp-devis-cart-item-remove {
  background: transparent;
  border: 1px solid #E7E9EC;
  color: #a3271c;
  border-radius: 50%;
  width: 26px;
  height: 26px;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  transition: background .2s, border-color .2s;
}

.btp-devis-cart-item-remove:hover {
  background: #fdecec;
  border-color: #f3c2be;
}

.btp-devis-cart-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px solid #E7E9EC;
}

.btp-devis-cart-total span {
  font-weight: 600;
  color: #003B7A;
  font-size: 16px;
}

.btp-devis-cart-total strong {
  font-size: 30px;
  color: #E30613;
  font-weight: 700;
  animation: btpDevisPulse .4s ease;
}

@keyframes btpDevisPulse {
  0% { text-shadow: 0 0 0 rgba(227,6,19,0); }
  50% { text-shadow: 0 0 14px rgba(227,6,19,0.35); }
  100% { text-shadow: 0 0 0 rgba(227,6,19,0); }
}

.btp-devis-disclaimer {
  font-size: 13px;
  color: #5b6470;
  margin: 12px 0 0;
}

.btp-devis-client-fields h3 {
  color: #003B7A;
  font-size: 18px;
  margin: 0 0 16px;
  font-weight: 600;
}

.btp-devis-row {
  display: flex;
  gap: 16px;
}

.btp-devis-row .btp-devis-field {
  flex: 1;
}

.btp-devis-field {
  margin-bottom: 16px;
}

.btp-devis-field label {
  display: block;
  font-weight: 500;
  color: #333333;
  margin-bottom: 6px;
  font-size: 14px;
}

.btp-devis-submit {
  background: #E30613;
  color: #FFFFFF;
  border: none;
  border-radius: 6px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .15s, background .2s;
  font-family: inherit;
}

.btp-devis-submit:hover:not(:disabled) {
  background: #c00511;
  transform: scale(1.02);
}

.btp-devis-submit:disabled {
  background: #E7E9EC;
  color: #9aa0a6;
  cursor: not-allowed;
  transform: none;
}

.btp-devis-consent-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 4px 0 16px;
  cursor: pointer;
}

.btp-devis-consent-label input[type=checkbox] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  margin-top: 2px;
  accent-color: #E30613;
  cursor: pointer;
}

.btp-devis-consent-label span {
  font-size: 13px;
  color: #5b6470;
  line-height: 1.4;
}

.btp-devis-message {
  margin-top: 20px;
  padding: 16px 20px;
  border-radius: 8px;
  font-size: 15px;
}

.btp-devis-message.success {
  background: #eef7ee;
  color: #1e6b2e;
  border: 1px solid #bfe3c4;
}

.btp-devis-message.error {
  background: #fdecec;
  color: #a3271c;
  border: 1px solid #f3c2be;
}

@media (max-width: 600px) {
  .btp-devis-row {
    flex-direction: column;
    gap: 0;
  }

  .btp-devis-cart-item {
    flex-wrap: wrap;
  }

  .btp-devis-cart-item-right {
    margin-left: auto;
  }

  .btp-devis-cart-total strong {
    font-size: 24px;
  }
}