:root {
  --ids-primary: #2E5AAC;
  --ids-secondary: #F2A93B;
  --ids-bg: #F7F9FC;
  --ids-text: #1D2939;
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--ids-bg);
  color: var(--ids-text);
  margin: 0;
  padding: 20px;
}

.ids-container { max-width: 600px; margin: 0 auto; }

.ids-header { text-align: center; margin-bottom: 20px; }
.ids-logo { height: 50px; margin-bottom: 10px; }
.ids-header h1 { font-size: 20px; color: var(--ids-primary); }

.ids-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.ids-progreso { background: #E4E9F2; border-radius: 20px; height: 8px; margin-bottom: 20px; overflow: hidden; }
.ids-barra { background: var(--ids-secondary); height: 100%; width: 0%; transition: width 0.3s; }

.ids-pregunta-texto { font-size: 17px; margin-bottom: 16px; font-weight: 600; }

.ids-opcion {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  margin-bottom: 10px;
  border: 2px solid #E4E9F2;
  border-radius: 8px;
  background: white;
  cursor: pointer;
  font-size: 15px;
  transition: all 0.2s;
}
.ids-opcion:hover { border-color: var(--ids-primary); }
.ids-opcion.seleccionada { border-color: var(--ids-primary); background: #EAF0FC; }

.ids-btn {
  background: var(--ids-primary);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
  width: 100%;
  margin-top: 10px;
}
.ids-btn:disabled { background: #B0BCD4; cursor: not-allowed; }

.ids-spinner {
  border: 3px solid #E4E9F2;
  border-top: 3px solid var(--ids-primary);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  animation: girar 1s linear infinite;
  margin: 10px auto;
}
@keyframes girar { 100% { transform: rotate(360deg); } }