.imf-bs-form {
  display: flex;
  align-items: center;
  height: 48px;
  border-radius: 999px;
  padding: 0 16px;
  max-width: 640px;
  margin: 0 auto;
}

/* Variante clara: pastilla blanca (para usar sobre fondos de color, ej. hero naranja) */
.imf-bs-form--clara {
  background: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px -12px rgba(0,0,0,.10);
}

/* Variante oscura: pastilla gris clara (para usar sobre fondo blanco) */
.imf-bs-form--oscura {
  background: #F5F5F5;
  border: 1px solid #E5E5E5;
}

.imf-bs-icon {
  width: 20px;
  height: 20px;
  color: #5A5A5A;
  flex-shrink: 0;
}

.imf-bs-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 0 12px;
  font-size: 14px;
  color: #1A1A1A;
  font-family: inherit;
}
.imf-bs-input::placeholder { color: #9A9A9A; }

.imf-bs-btn {
  flex-shrink: 0;
  background: #1A1A1A;
  color: #fff;
  border: none;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 0 16px;
  height: 36px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s;
}
.imf-bs-btn:hover { background: #000; }

@media (max-width: 480px) {
  .imf-bs-form { height: 44px; padding: 0 12px; }
  .imf-bs-icon { width: 18px; height: 18px; }
  .imf-bs-input { font-size: 13px; padding: 0 8px; }
  .imf-bs-btn { font-size: 12px; height: 32px; padding: 0 12px; }
}