#construction-calculator {
  direction: rtl;
  max-width: 800px;
  margin: 30px auto;
  padding: 20px;
  background: #fdfdfd;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.08);
  font-family: "Cairo", sans-serif;
}

#construction-calculator h2, h3, h4 {
  color: #1e88e5;
  margin-bottom: 15px;
}

#cc-calc-form label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

#cc-calc-form input {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

#cc-calc-form button {
  background-color: #1e88e5;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}
#cc-calc-form button:hover {
  background-color: #1565c0;
}

.cc-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 20px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.cc-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.cc-card li {
  margin: 5px 0;
  font-size: 15px;
}

.cc-summary {
  background: #e8f5e9;
  border: 1px solid #c8e6c9;
  border-radius: 10px;
  padding: 15px;
  margin-top: 30px;
}
.cc-summary ul {
  list-style: none;
  padding: 0;
}

.cc-whatsapp {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 20px;
  background: #25d366;
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
}
.cc-whatsapp:hover {
  background: #128c7e;
}