:root {
  --bg: <?php echo get_option('ia_bg_color'); ?>;
  --label: <?php echo get_option('ia_label_color'); ?>;
  --title: <?php echo get_option('ia_title_color'); ?>;
  --font: <?php echo get_option('ia_font_color'); ?>;
}

.container {
  background: var(--bg);
  padding: 30px;
  max-width: 700px;
  margin: 40px auto;
  border-radius: 12px;
  box-shadow: 0 0 12px rgba(0,0,0,0.1);
  font-family: "Segoe UI", sans-serif;
  color: var(--font);
}

h1 {
  color: var(--title);
}

label {
  color: var(--label);
  display: block;
  margin-top: 12px;
}

input[type="number"], select {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #ccc;
  margin-bottom: 20px;
}

input[type=submit], .btn-pdf {
  background: #1d72b8;
  color: white;
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 20px;
}