:root {
  --fa-blue: #0F1C2E;
  --fa-accent: #F26B38;
  --fa-bg: #f7f8fc;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: var(--fa-bg);
  color: var(--fa-blue);
}

.fa-container {
  max-width: 600px;
  margin: 40px auto;
  background: #fff;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.1);
}

h1 {
  text-align: center;
  margin-bottom: 24px;
  color: var(--fa-blue);
}

.fa-field {
  margin-bottom: 16px;
}
.fa-field label {
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}
.fa-field input, .fa-field select {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #ccc;
}

.fa-options {
  display: flex;
  gap: 14px;
  margin-top: 6px;
}

.fa-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--fa-accent), #d85a2a);
  color: #fff;
  font-weight: bold;
  cursor: pointer;
}

.hidden { display: none; }

#chartContainer {
  margin: 20px 0;
}

.fa-table {
  width: 100%;
  border-collapse: collapse;
}
.fa-table th, .fa-table td {
  padding: 12px;
  border-bottom: 1px solid #eee;
  text-align: left;
}
.fa-table th {
  background: #f9fafc;
}